./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1650539452 <...> Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts. execve("./syz-executor1650539452", ["./syz-executor1650539452"], 0x7ffc3ce281d0 /* 10 vars */) = 0 brk(NULL) = 0x555555d61000 brk(0x555555d61d40) = 0x555555d61d40 arch_prctl(ARCH_SET_FS, 0x555555d613c0) = 0 set_tid_address(0x555555d61690) = 5054 set_robust_list(0x555555d616a0, 24) = 0 rseq(0x555555d61ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1650539452", 4096) = 28 getrandom("\x2e\xd4\x34\x13\x05\x99\xbb\x62", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d61d40 brk(0x555555d82d40) = 0x555555d82d40 brk(0x555555d83000) = 0x555555d83000 mprotect(0x7f923edb7000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5055 attached [pid 5055] set_robust_list(0x555555d616a0, 24) = 0 [pid 5054] <... clone resumed>, child_tidptr=0x555555d61690) = 5055 [pid 5055] mkdir("./syzkaller.35Pk7d", 0700 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5056 attached , child_tidptr=0x555555d61690) = 5056 [pid 5055] <... mkdir resumed>) = 0 [pid 5056] set_robust_list(0x555555d616a0, 24 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] chmod("./syzkaller.35Pk7d", 0777 [pid 5056] <... set_robust_list resumed>) = 0 [pid 5055] <... chmod resumed>) = 0 [pid 5055] chdir("./syzkaller.35Pk7d"./strace-static-x86_64: Process 5057 attached [pid 5056] mkdir("./syzkaller.S05U50", 0700 [pid 5055] <... chdir resumed>) = 0 [pid 5057] set_robust_list(0x555555d616a0, 24 [pid 5054] <... clone resumed>, child_tidptr=0x555555d61690) = 5057 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] mkdir("./0", 0777 [pid 5056] chmod("./syzkaller.S05U50", 0777 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... set_robust_list resumed>) = 0 [pid 5056] <... chmod resumed>) = 0 [pid 5056] chdir("./syzkaller.S05U50"./strace-static-x86_64: Process 5058 attached [pid 5057] mkdir("./syzkaller.drnp9m", 0700 [pid 5056] <... chdir resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5058] set_robust_list(0x555555d616a0, 24 [pid 5054] <... clone resumed>, child_tidptr=0x555555d61690) = 5058 [pid 5056] mkdir("./0", 0777 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... set_robust_list resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] mkdir("./syzkaller.GdO0uI", 0700 [pid 5057] chmod("./syzkaller.drnp9m", 0777 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5057] <... chmod resumed>) = 0 [pid 5056] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5059 attached [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5059] set_robust_list(0x555555d616a0, 24 [pid 5054] <... clone resumed>, child_tidptr=0x555555d61690) = 5059 [pid 5059] <... set_robust_list resumed>) = 0 [pid 5057] chdir("./syzkaller.drnp9m" [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5057] <... chdir resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] mkdir("./0", 0777 [pid 5058] <... mkdir resumed>) = 0 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] mkdir("./syzkaller.mvbltx", 0700 [pid 5058] chmod("./syzkaller.GdO0uI", 0777 [pid 5056] close(3 [pid 5055] close(3 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... mkdir resumed>) = 0 [pid 5058] <... chmod resumed>) = 0 [pid 5057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5061 attached [pid 5061] set_robust_list(0x555555d616a0, 24 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5061] <... set_robust_list resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5061] chdir("./0" [pid 5057] close(3 [pid 5061] <... chdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5060 attached [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] chmod("./syzkaller.mvbltx", 0777 [pid 5058] chdir("./syzkaller.GdO0uI" [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5054] <... clone resumed>, child_tidptr=0x555555d61690) = 5060 [pid 5060] set_robust_list(0x555555d616a0, 24) = 0 [pid 5061] <... prctl resumed>) = 0 [pid 5061] setpgid(0, 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5061 [pid 5061] <... setpgid resumed>) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] mkdir("./syzkaller.G92Acn", 0700 [pid 5061] <... openat resumed>) = 3 [pid 5059] <... chmod resumed>) = 0 [pid 5058] <... chdir resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5063 ./strace-static-x86_64: Process 5063 attached ./strace-static-x86_64: Process 5062 attached [pid 5063] set_robust_list(0x555555d616a0, 24 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5062 [pid 5062] set_robust_list(0x555555d616a0, 24 [pid 5063] <... set_robust_list resumed>) = 0 [pid 5061] write(3, "1000", 4 [pid 5059] chdir("./syzkaller.mvbltx" [pid 5058] mkdir("./0", 0777 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5063] chdir("./0" [pid 5061] <... write resumed>) = 4 [pid 5059] <... chdir resumed>) = 0 [pid 5062] chdir("./0" [pid 5063] <... chdir resumed>) = 0 [pid 5061] close(3 [pid 5058] <... mkdir resumed>) = 0 [pid 5060] chmod("./syzkaller.G92Acn", 0777 [pid 5059] mkdir("./0", 0777 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5062] <... chdir resumed>) = 0 [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5061] <... close resumed>) = 0 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] <... prctl resumed>) = 0 [pid 5061] symlink("/dev/binderfs", "./binderfs" [pid 5062] <... prctl resumed>) = 0 [pid 5063] setpgid(0, 0 [pid 5061] <... symlink resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5062] setpgid(0, 0 [pid 5063] <... setpgid resumed>) = 0 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... setpgid resumed>) = 0 [pid 5063] <... openat resumed>) = 3 [pid 5060] <... chmod resumed>) = 0 [pid 5061] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] chdir("./syzkaller.G92Acn" [pid 5061] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5063] write(3, "1000", 4 [pid 5060] <... chdir resumed>) = 0 [pid 5061] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5062] write(3, "1000", 4 [pid 5063] <... write resumed>) = 4 [pid 5060] mkdir("./0", 0777 [pid 5061] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] close(3 [pid 5062] <... write resumed>) = 4 [pid 5063] close(3 [pid 5060] <... mkdir resumed>) = 0 [pid 5061] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... close resumed>) = 0 [pid 5062] close(3 [pid 5063] <... close resumed>) = 0 [pid 5062] <... close resumed>) = 0 [pid 5063] symlink("/dev/binderfs", "./binderfs" [pid 5061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5062] symlink("/dev/binderfs", "./binderfs" [pid 5063] <... symlink resumed>) = 0 [pid 5061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5062] <... symlink resumed>) = 0 [pid 5061] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] close(3 [pid 5061] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... close resumed>) = 0 [pid 5063] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5061] <... mprotect resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5066 attached ./strace-static-x86_64: Process 5065 attached [pid 5062] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5061] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5066] set_robust_list(0x555555d616a0, 24 [pid 5065] set_robust_list(0x555555d616a0, 24 [pid 5062] <... futex resumed>) = 0 [pid 5063] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5065 [pid 5065] <... set_robust_list resumed>) = 0 [pid 5065] chdir("./0" [pid 5062] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5063] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5061] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5065] <... chdir resumed>) = 0 [pid 5062] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5061] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5067 attached [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] close(3 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5066 [pid 5067] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5066] chdir("./0" [pid 5065] <... prctl resumed>) = 0 [pid 5062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] <... close resumed>) = 0 [pid 5067] <... rseq resumed>) = 0 [pid 5066] <... chdir resumed>) = 0 [pid 5065] setpgid(0, 0 [pid 5062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5063] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5061] <... clone3 resumed> => {parent_tid=[5067]}, 88) = 5067 [pid 5067] set_robust_list(0x7f923ecf19a0, 24 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] <... setpgid resumed>) = 0 [pid 5062] <... mmap resumed>) = 0x7f923ecd1000 [pid 5063] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5061] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5068 attached [pid 5062] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5063] <... mprotect resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] <... mprotect resumed>) = 0 [pid 5063] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5068] set_robust_list(0x555555d616a0, 24 [pid 5062] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] <... set_robust_list resumed>) = 0 [pid 5062] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5063] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5061] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] chdir("./0" [pid 5062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5068 [pid 5068] <... chdir resumed>) = 0 [pid 5067] <... set_robust_list resumed>) = 0 [pid 5066] <... prctl resumed>) = 0 [pid 5065] <... openat resumed>) = 3 [pid 5061] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5070 attached ./strace-static-x86_64: Process 5069 attached [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5067] rt_sigprocmask(SIG_SETMASK, [], [pid 5066] setpgid(0, 0 [pid 5065] write(3, "1000", 4 [pid 5062] <... clone3 resumed> => {parent_tid=[5070]}, 88) = 5070 [pid 5063] <... clone3 resumed> => {parent_tid=[5069]}, 88) = 5069 [pid 5061] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5070] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5068] <... prctl resumed>) = 0 [pid 5067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5062] rt_sigprocmask(SIG_SETMASK, [], [pid 5063] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] <... rseq resumed>) = 0 [pid 5069] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5068] setpgid(0, 0 [pid 5067] memfd_create("syzkaller", 0 [pid 5066] <... setpgid resumed>) = 0 [pid 5065] <... write resumed>) = 4 [pid 5062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] set_robust_list(0x7f923ecf19a0, 24 [pid 5069] <... rseq resumed>) = 0 [pid 5068] <... setpgid resumed>) = 0 [pid 5067] <... memfd_create resumed>) = 3 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] close(3 [pid 5062] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5069] set_robust_list(0x7f923ecf19a0, 24 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... openat resumed>) = 3 [pid 5065] <... close resumed>) = 0 [pid 5062] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5069] <... set_robust_list resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5067] <... mmap resumed>) = 0x7f92368d1000 [pid 5066] write(3, "1000", 4 [pid 5065] symlink("/dev/binderfs", "./binderfs" [pid 5062] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5063] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5069] rt_sigprocmask(SIG_SETMASK, [], [pid 5068] write(3, "1000", 4 [pid 5066] <... write resumed>) = 4 [pid 5065] <... symlink resumed>) = 0 [pid 5070] memfd_create("syzkaller", 0 [pid 5069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] <... write resumed>) = 4 [pid 5066] close(3 [pid 5065] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... memfd_create resumed>) = 3 [pid 5069] memfd_create("syzkaller", 0 [pid 5068] close(3 [pid 5066] <... close resumed>) = 0 [pid 5065] <... futex resumed>) = 0 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... memfd_create resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5066] symlink("/dev/binderfs", "./binderfs" [pid 5065] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5070] <... mmap resumed>) = 0x7f92368d1000 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... mmap resumed>) = 0x7f92368d1000 [pid 5068] <... symlink resumed>) = 0 [pid 5066] <... symlink resumed>) = 0 [pid 5065] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5068] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5068] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5068] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5068] <... mprotect resumed>) = 0 [pid 5067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5066] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5068] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5065] <... mmap resumed>) = 0x7f923ecd1000 [pid 5068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5066] <... futex resumed>) = 0 [pid 5065] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5071 attached [pid 5066] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5065] <... mprotect resumed>) = 0 [pid 5071] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5070] <... write resumed>) = 524288 [pid 5068] <... clone3 resumed> => {parent_tid=[5071]}, 88) = 5071 [pid 5065] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5071] <... rseq resumed>) = 0 [pid 5065] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5066] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5071] set_robust_list(0x7f923ecf19a0, 24 [pid 5068] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] <... set_robust_list resumed>) = 0 [pid 5068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5072 attached [pid 5071] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] munmap(0x7f92368d1000, 138412032 [pid 5068] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5065] <... clone3 resumed> => {parent_tid=[5072]}, 88) = 5072 [pid 5072] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] <... munmap resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5065] rt_sigprocmask(SIG_SETMASK, [], [pid 5072] <... rseq resumed>) = 0 [pid 5071] memfd_create("syzkaller", 0 [pid 5068] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5066] <... mmap resumed>) = 0x7f923ecd1000 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5072] set_robust_list(0x7f923ecf19a0, 24 [pid 5071] <... memfd_create resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5065] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] <... mmap resumed>) = 0x7f92368d1000 [pid 5070] <... openat resumed>) = 4 [pid 5066] <... mprotect resumed>) = 0 [pid 5065] <... futex resumed>) = 0 [pid 5072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5070] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... write resumed>) = 524288 [pid 5067] <... write resumed>) = 524288 [pid 5066] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5065] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5072] memfd_create("syzkaller", 0 [pid 5069] munmap(0x7f92368d1000, 138412032 [pid 5067] munmap(0x7f92368d1000, 138412032 [pid 5066] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5072] <... memfd_create resumed>) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5067] <... munmap resumed>) = 0 [pid 5069] <... munmap resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5073 attached [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5067] ioctl(4, LOOP_SET_FD, 3 [pid 5066] <... clone3 resumed> => {parent_tid=[5073]}, 88) = 5073 [pid 5073] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5069] <... openat resumed>) = 4 [pid 5066] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] <... write resumed>) = 524288 [pid 5071] munmap(0x7f92368d1000, 138412032) = 0 [pid 5073] <... rseq resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... ioctl resumed>) = 0 [pid 5066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5073] set_robust_list(0x7f923ecf19a0, 24 [pid 5071] <... openat resumed>) = 4 [pid 5071] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5072] <... write resumed>) = 524288 [pid 5070] <... ioctl resumed>) = 0 [pid 5066] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5072] munmap(0x7f92368d1000, 138412032 [pid 5069] <... ioctl resumed>) = 0 [pid 5066] <... futex resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5072] <... munmap resumed>) = 0 [pid 5073] memfd_create("syzkaller", 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] close(3 [pid 5066] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5073] <... memfd_create resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... openat resumed>) = 4 [pid 5069] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5073] <... mmap resumed>) = 0x7f92368d1000 [pid 5072] ioctl(4, LOOP_SET_FD, 3 [pid 5070] close(3) = 0 [pid 5070] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5070] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [ 55.851698][ T5070] loop2: detected capacity change from 0 to 1024 [ 55.864494][ T5067] loop0: detected capacity change from 0 to 1024 [ 55.872480][ T5069] loop1: detected capacity change from 0 to 1024 [ 55.875378][ T5071] loop5: detected capacity change from 0 to 1024 [pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5067] close(3 [pid 5073] <... write resumed>) = 524288 [pid 5072] <... ioctl resumed>) = 0 [pid 5070] <... mount resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5072] close(3 [pid 5070] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5067] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5072] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5073] munmap(0x7f92368d1000, 138412032 [pid 5072] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5070] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] <... mkdir resumed>) = 0 [pid 5073] <... munmap resumed>) = 0 [pid 5070] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... ioctl resumed>) = 0 [pid 5070] ioctl(4, LOOP_CLR_FD [pid 5067] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5073] <... openat resumed>) = 4 [pid 5072] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5071] close(3 [pid 5070] <... ioctl resumed>) = 0 [pid 5073] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... close resumed>) = 0 [pid 5070] close(4 [pid 5069] <... mount resumed>) = 0 [ 55.897031][ T5072] loop3: detected capacity change from 0 to 1024 [pid 5071] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5070] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5070] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5062] <... futex resumed>) = 0 [pid 5070] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5062] <... futex resumed>) = 0 [pid 5070] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5069] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5072] <... mount resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] <... mount resumed>) = 0 [pid 5062] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... ioctl resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5067] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5073] close(3 [pid 5072] <... openat resumed>) = 3 [pid 5069] <... chdir resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5072] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5071] <... mount resumed>) = 0 [pid 5069] ioctl(4, LOOP_CLR_FD [pid 5067] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5072] <... chdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5069] <... ioctl resumed>) = 0 [pid 5067] <... chdir resumed>) = 0 [pid 5072] ioctl(4, LOOP_CLR_FD [pid 5071] <... openat resumed>) = 3 [pid 5069] close(4 [pid 5067] ioctl(4, LOOP_CLR_FD [pid 5073] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5072] <... ioctl resumed>) = 0 [pid 5071] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5070] <... mknod resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5072] close(4 [pid 5071] <... chdir resumed>) = 0 [pid 5067] close(4 [pid 5073] <... mkdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] ioctl(4, LOOP_CLR_FD [pid 5069] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 1 [pid 5071] <... ioctl resumed>) = 0 [pid 5070] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 1 [pid 5067] <... futex resumed>) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5073] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5072] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] close(4 [pid 5070] <... futex resumed>) = 1 [pid 5069] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] <... futex resumed>) = 0 [pid 5063] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5071] <... close resumed>) = 0 [pid 5070] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5072] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5071] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5069] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5067] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5065] <... futex resumed>) = 0 [pid 5062] <... futex resumed>) = 0 [pid 5061] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5070] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5068] <... futex resumed>) = 0 [pid 5062] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5068] <... futex resumed>) = 0 [pid 5067] <... mknod resumed>) = 0 [pid 5071] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5068] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... mknod resumed>) = 0 [pid 5067] <... futex resumed>) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5073] <... mount resumed>) = 0 [pid 5072] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... mknod resumed>) = 0 [pid 5067] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 55.930409][ T5073] loop4: detected capacity change from 0 to 1024 [pid 5061] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5072] <... futex resumed>) = 1 [pid 5071] <... mknod resumed>) = 0 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5072] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5065] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... openat resumed>) = 3 [pid 5072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5070] <... open resumed>) = 4 [pid 5069] <... futex resumed>) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5072] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5071] <... futex resumed>) = 1 [pid 5069] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5068] <... futex resumed>) = 0 [pid 5063] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5068] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5063] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5069] <... open resumed>) = 4 [pid 5068] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... open resumed>) = 4 [pid 5073] <... chdir resumed>) = 0 [pid 5072] <... open resumed>) = 4 [pid 5071] <... open resumed>) = 4 [pid 5070] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] ioctl(4, LOOP_CLR_FD) = 0 [pid 5070] <... futex resumed>) = 1 [pid 5069] <... futex resumed>) = 1 [pid 5062] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5073] close(4 [pid 5070] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5069] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... close resumed>) = 0 [pid 5072] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5073] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 1 [pid 5071] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] sync( [pid 5069] sync( [pid 5067] <... futex resumed>) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5062] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5072] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] <... futex resumed>) = 1 [pid 5068] <... futex resumed>) = 0 [pid 5067] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] <... futex resumed>) = 0 [pid 5065] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5071] sync( [pid 5068] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = 0 [pid 5067] sync( [pid 5066] <... futex resumed>) = 0 [pid 5065] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5066] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] sync( [pid 5073] <... mknod resumed>) = 0 [pid 5073] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5066] <... futex resumed>) = 0 [pid 5062] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5073] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5066] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5065] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5061] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5063] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5073] <... open resumed>) = 4 [pid 5073] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5066] <... futex resumed>) = 0 [pid 5073] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] <... futex resumed>) = 0 [pid 5073] sync( [pid 5066] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5073] <... sync resumed>) = 0 [pid 5072] <... sync resumed>) = 0 [pid 5071] <... sync resumed>) = 0 [pid 5070] <... sync resumed>) = 0 [pid 5069] <... sync resumed>) = 0 [pid 5067] <... sync resumed>) = 0 [pid 5073] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] exit_group(0 [pid 5067] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] exit_group(0 [pid 5062] exit_group(0 [pid 5063] exit_group(0 [pid 5061] exit_group(0 [pid 5073] <... futex resumed>) = -1 (errno 18446744073709551555) [pid 5072] <... futex resumed>) = 0 [pid 5071] <... futex resumed>) = ? [pid 5070] <... futex resumed>) = 0 [pid 5069] <... futex resumed>) = 0 [pid 5068] <... exit_group resumed>) = ? [pid 5067] <... futex resumed>) = 0 [pid 5066] <... exit_group resumed>) = ? [pid 5073] +++ exited with 0 +++ [pid 5072] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] +++ exited with 0 +++ [pid 5070] +++ exited with 0 +++ [pid 5069] +++ exited with 0 +++ [pid 5067] +++ exited with 0 +++ [pid 5062] <... exit_group resumed>) = ? [pid 5063] <... exit_group resumed>) = ? [pid 5061] <... exit_group resumed>) = ? [pid 5068] +++ exited with 0 +++ [pid 5061] +++ exited with 0 +++ [pid 5065] exit_group(0 [pid 5072] <... futex resumed>) = ? [pid 5072] +++ exited with 0 +++ [pid 5066] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5065] <... exit_group resumed>) = ? [pid 5062] +++ exited with 0 +++ [pid 5063] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5062, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... restart_syscall resumed>) = 0 [pid 5065] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5060] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5065, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5057] <... restart_syscall resumed>) = 0 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5060] newfstatat(3, "", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(3, [pid 5059] <... openat resumed>) = 3 [pid 5058] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] newfstatat(3, "", [pid 5058] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] newfstatat(3, "", [pid 5058] <... openat resumed>) = 3 [pid 5059] getdents64(3, [pid 5058] newfstatat(3, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] getdents64(3, [pid 5057] getdents64(3, [pid 5056] newfstatat(3, "", [pid 5055] newfstatat(3, "", [pid 5059] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5055] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5060] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(4, "", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = 0 [pid 5057] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] close(4 [pid 5060] <... openat resumed>) = 4 [pid 5056] <... close resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5056] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4) = 0 [pid 5060] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] unlink("./0/binderfs" [pid 5060] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 4 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(4, "", [pid 5055] newfstatat(4, "", [pid 5059] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] newfstatat(4, "", [pid 5058] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(4, [pid 5055] getdents64(4, [pid 5060] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, [pid 5058] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] getdents64(4, [pid 5055] getdents64(4, [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] unlink("./0/binderfs" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] newfstatat(4, "", [pid 5057] close(4 [pid 5056] <... close resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5056] rmdir("./0" [pid 5060] getdents64(3, [pid 5059] getdents64(4, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(4, [pid 5057] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] mkdir("./1", 0777 [pid 5055] <... close resumed>) = 0 [pid 5060] close(3 [pid 5059] close(4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] getdents64(4, [pid 5055] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... close resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... rmdir resumed>) = 0 [pid 5058] close(4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... close resumed>) = 0 [pid 5055] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] unlink("./0/binderfs" [pid 5060] rmdir("./0" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5058] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, [pid 5055] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached [pid 5060] mkdir("./1", 0777 [pid 5059] unlink("./0/binderfs" [pid 5058] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5057] close(3 [pid 5055] unlink("./0/binderfs" [pid 5078] set_robust_list(0x555555d616a0, 24 [pid 5060] <... mkdir resumed>) = 0 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5078 [pid 5078] chdir("./1" [pid 5060] <... openat resumed>) = 3 [pid 5078] <... chdir resumed>) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5078] <... prctl resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] setpgid(0, 0 [pid 5060] close(3 [pid 5078] <... setpgid resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... close resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] unlink("./0/binderfs" [pid 5057] rmdir("./0" [pid 5055] getdents64(3, [pid 5078] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5078] write(3, "1000", 4) = 4 [pid 5057] <... rmdir resumed>) = 0 [pid 5055] close(3 [pid 5078] close(3) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... unlink resumed>) = 0 [pid 5057] mkdir("./1", 0777 [pid 5055] <... close resumed>) = 0 [pid 5078] <... symlink resumed>) = 0 [pid 5055] rmdir("./0" [pid 5078] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... mkdir resumed>) = 0 [pid 5078] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5059] getdents64(3, [pid 5058] getdents64(3, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] <... rmdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5079 attached [pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] close(3 [pid 5058] close(3 [pid 5057] <... openat resumed>) = 3 [pid 5055] mkdir("./1", 0777 [pid 5078] <... mmap resumed>) = 0x7f923ecd1000 [pid 5078] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5079 [pid 5078] <... mprotect resumed>) = 0 [pid 5079] set_robust_list(0x555555d616a0, 24 [pid 5078] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5055] <... mkdir resumed>) = 0 [pid 5078] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] rmdir("./0" [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] rmdir("./0" [pid 5057] close(3 [pid 5078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5078] <... clone3 resumed> => {parent_tid=[5080]}, 88) = 5080 [pid 5078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5059] mkdir("./1", 0777 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... openat resumed>) = 3 [pid 5078] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5080 attached [pid 5080] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5080] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5080] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5081 attached NULL, 8) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] mkdir("./1", 0777 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5081] set_robust_list(0x555555d616a0, 24 [pid 5080] memfd_create("syzkaller", 0 [pid 5055] close(3 [pid 5080] <... memfd_create resumed>) = 3 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5081 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] chdir("./1" [pid 5055] <... close resumed>) = 0 [pid 5081] chdir("./1" [pid 5080] <... mmap resumed>) = 0x7f92368d1000 [pid 5079] <... chdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... chdir resumed>) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] <... openat resumed>) = 3 [pid 5079] <... prctl resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5082 [pid 5081] <... prctl resumed>) = 0 [pid 5081] setpgid(0, 0 [pid 5079] setpgid(0, 0 [pid 5081] <... setpgid resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5082 attached [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... setpgid resumed>) = 0 [pid 5059] close(3 [pid 5082] set_robust_list(0x555555d616a0, 24 [pid 5081] <... openat resumed>) = 3 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5082] <... set_robust_list resumed>) = 0 [pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5082] chdir("./1" [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... close resumed>) = 0 [pid 5058] close(3 [pid 5082] <... chdir resumed>) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] <... close resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... prctl resumed>) = 0 [pid 5081] write(3, "1000", 4./strace-static-x86_64: Process 5083 attached [pid 5082] setpgid(0, 0 [pid 5081] <... write resumed>) = 4 [pid 5079] <... openat resumed>) = 3 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5083 [pid 5082] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5081] symlink("/dev/binderfs", "./binderfs" [pid 5083] set_robust_list(0x555555d616a0, 24) = 0 [pid 5081] <... symlink resumed>) = 0 [pid 5079] write(3, "1000", 4 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5084 [pid 5083] chdir("./1" [pid 5081] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... chdir resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5081] <... futex resumed>) = 0 [pid 5079] <... write resumed>) = 4 ./strace-static-x86_64: Process 5084 attached [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] write(3, "1000", 4 [pid 5081] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5079] close(3 [pid 5084] set_robust_list(0x555555d616a0, 24 [pid 5082] <... write resumed>) = 4 [pid 5081] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5079] <... close resumed>) = 0 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5082] close(3 [pid 5081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5080] <... write resumed>) = 524288 [pid 5079] symlink("/dev/binderfs", "./binderfs" [pid 5084] chdir("./1" [pid 5082] <... close resumed>) = 0 [pid 5081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 5081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5084] <... chdir resumed>) = 0 [pid 5083] <... prctl resumed>) = 0 [pid 5082] <... symlink resumed>) = 0 [pid 5081] <... mmap resumed>) = 0x7f923ecd1000 [pid 5079] <... symlink resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] setpgid(0, 0 [pid 5082] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5084] <... prctl resumed>) = 0 [pid 5083] <... setpgid resumed>) = 0 [pid 5082] <... futex resumed>) = 0 [pid 5081] <... mprotect resumed>) = 0 [pid 5080] munmap(0x7f92368d1000, 138412032 [pid 5084] setpgid(0, 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5081] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5080] <... munmap resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5082] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5081] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5085 attached [pid 5084] <... openat resumed>) = 3 [pid 5082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5085] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5084] write(3, "1000", 4 [pid 5082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5081] <... clone3 resumed> => {parent_tid=[5085]}, 88) = 5085 [pid 5080] <... openat resumed>) = 4 [pid 5085] <... rseq resumed>) = 0 [pid 5084] <... write resumed>) = 4 [pid 5082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5081] rt_sigprocmask(SIG_SETMASK, [], [pid 5085] set_robust_list(0x7f923ecf19a0, 24 [pid 5084] close(3 [pid 5082] <... mmap resumed>) = 0x7f923ecd1000 [pid 5081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5080] ioctl(4, LOOP_SET_FD, 3 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5079] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... close resumed>) = 0 [pid 5082] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5081] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] rt_sigprocmask(SIG_SETMASK, [], [pid 5082] <... mprotect resumed>) = 0 [pid 5081] <... futex resumed>) = 0 [pid 5085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5083] write(3, "1000", 4 [pid 5082] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5081] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... futex resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5083] close(3) = 0 [pid 5083] symlink("/dev/binderfs", "./binderfs" [pid 5079] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5084] <... symlink resumed>) = 0 [pid 5083] <... symlink resumed>) = 0 [pid 5082] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5079] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5083] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5083] <... futex resumed>) = 0 [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5084] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5085] <... memfd_create resumed>) = 3 [pid 5084] <... futex resumed>) = 0 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5085] <... mmap resumed>) = 0x7f92368d1000 [pid 5082] <... clone3 resumed> => {parent_tid=[5086]}, 88) = 5086 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5084] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5083] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5079] <... mmap resumed>) = 0x7f923ecd1000 [pid 5084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5082] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5086 attached [pid 5084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5086] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5082] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... rseq resumed>) = 0 [pid 5084] <... mmap resumed>) = 0x7f923ecd1000 [pid 5083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5082] <... futex resumed>) = 0 [pid 5079] <... mprotect resumed>) = 0 [pid 5086] set_robust_list(0x7f923ecf19a0, 24 [pid 5084] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5082] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5086] <... set_robust_list resumed>) = 0 [pid 5084] <... mprotect resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5086] rt_sigprocmask(SIG_SETMASK, [], [pid 5084] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5080] close(3 [pid 5086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5084] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5086] memfd_create("syzkaller", 0 [pid 5083] <... mmap resumed>) = 0x7f923ecd1000 [pid 5080] <... close resumed>) = 0 [pid 5079] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5086] <... memfd_create resumed>) = 3 [pid 5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5083] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5080] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5088 attached ./strace-static-x86_64: Process 5087 attached [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... mprotect resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5086] <... mmap resumed>) = 0x7f92368d1000 [pid 5084] <... clone3 resumed> => {parent_tid=[5087]}, 88) = 5087 [pid 5080] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5088] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5087] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5084] rt_sigprocmask(SIG_SETMASK, [], [pid 5083] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5079] <... clone3 resumed> => {parent_tid=[5088]}, 88) = 5088 [pid 5088] <... rseq resumed>) = 0 [pid 5087] <... rseq resumed>) = 0 [pid 5083] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5088] set_robust_list(0x7f923ecf19a0, 24 [pid 5083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5087] set_robust_list(0x7f923ecf19a0, 24 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5079] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] <... set_robust_list resumed>) = 0 [pid 5088] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5089 attached [pid 5088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5085] <... write resumed>) = 524288 [pid 5084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] memfd_create("syzkaller", 0 [pid 5087] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... clone3 resumed> => {parent_tid=[5089]}, 88) = 5089 [pid 5080] <... mount resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5089] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5085] munmap(0x7f92368d1000, 138412032 [pid 5089] <... rseq resumed>) = 0 [pid 5088] <... memfd_create resumed>) = 3 [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5083] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5089] set_robust_list(0x7f923ecf19a0, 24 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5087] memfd_create("syzkaller", 0 [pid 5086] <... write resumed>) = 524288 [pid 5085] <... munmap resumed>) = 0 [pid 5084] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5080] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] <... mmap resumed>) = 0x7f92368d1000 [ 56.608231][ T5080] loop1: detected capacity change from 0 to 1024 [pid 5087] <... memfd_create resumed>) = 3 [pid 5086] munmap(0x7f92368d1000, 138412032 [pid 5083] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... openat resumed>) = 3 [pid 5089] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5086] <... munmap resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5083] <... futex resumed>) = 0 [pid 5080] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5087] <... mmap resumed>) = 0x7f92368d1000 [pid 5083] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5080] <... chdir resumed>) = 0 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5080] ioctl(4, LOOP_CLR_FD [pid 5089] <... memfd_create resumed>) = 3 [pid 5085] <... openat resumed>) = 4 [pid 5080] <... ioctl resumed>) = 0 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] ioctl(4, LOOP_SET_FD, 3 [pid 5080] close(4 [pid 5089] <... mmap resumed>) = 0x7f92368d1000 [pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... close resumed>) = 0 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5088] <... write resumed>) = 524288 [pid 5086] <... openat resumed>) = 4 [pid 5080] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... futex resumed>) = 0 [pid 5078] <... futex resumed>) = 1 [pid 5080] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5078] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... mknod resumed>) = 0 [pid 5089] <... write resumed>) = 524288 [pid 5080] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] munmap(0x7f92368d1000, 138412032 [pid 5080] <... futex resumed>) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5088] <... munmap resumed>) = 0 [pid 5087] <... write resumed>) = 524288 [pid 5080] <... open resumed>) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5085] <... ioctl resumed>) = 0 [pid 5080] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5087] munmap(0x7f92368d1000, 138412032 [pid 5080] <... futex resumed>) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5089] munmap(0x7f92368d1000, 138412032 [pid 5085] close(3 [pid 5080] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... munmap resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... futex resumed>) = 0 [pid 5085] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5080] sync( [pid 5078] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5085] <... mkdir resumed>) = 0 [pid 5087] <... munmap resumed>) = 0 [pid 5089] <... openat resumed>) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5087] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5086] <... ioctl resumed>) = 0 [pid 5088] <... ioctl resumed>) = 0 [pid 5086] close(3 [pid 5085] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5088] close(3 [pid 5087] <... openat resumed>) = 4 [pid 5086] <... close resumed>) = 0 [pid 5088] <... close resumed>) = 0 [pid 5087] ioctl(4, LOOP_SET_FD, 3 [ 56.678108][ T5085] loop2: detected capacity change from 0 to 1024 [ 56.692087][ T5086] loop0: detected capacity change from 0 to 1024 [ 56.709421][ T5088] loop5: detected capacity change from 0 to 1024 [ 56.719288][ T5089] loop4: detected capacity change from 0 to 1024 [pid 5086] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5087] <... ioctl resumed>) = 0 [pid 5086] <... mkdir resumed>) = 0 [pid 5085] <... mount resumed>) = 0 [pid 5089] close(3 [pid 5088] <... mkdir resumed>) = 0 [pid 5087] close(3 [pid 5086] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5085] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5089] <... close resumed>) = 0 [pid 5088] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5087] <... close resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5080] <... sync resumed>) = 0 [pid 5089] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5087] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5085] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5089] <... mkdir resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5080] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5078] exit_group(0 [pid 5085] ioctl(4, LOOP_CLR_FD [pid 5078] <... exit_group resumed>) = ? [pid 5089] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5087] <... mkdir resumed>) = 0 [pid 5085] <... ioctl resumed>) = 0 [pid 5080] +++ exited with 0 +++ [pid 5078] +++ exited with 0 +++ [pid 5087] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5086] <... mount resumed>) = 0 [pid 5085] close(4 [pid 5088] <... mount resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5088] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5086] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5085] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... openat resumed>) = 3 [pid 5085] <... futex resumed>) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5088] <... openat resumed>) = 3 [pid 5088] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5086] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5085] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... chdir resumed>) = 0 [pid 5086] <... chdir resumed>) = 0 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] <... futex resumed>) = 0 [pid 5089] <... mount resumed>) = 0 [pid 5088] ioctl(4, LOOP_CLR_FD [pid 5086] ioctl(4, LOOP_CLR_FD [pid 5085] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5081] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5088] <... ioctl resumed>) = 0 [pid 5087] <... mount resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5089] <... openat resumed>) = 3 [pid 5088] close(4 [pid 5087] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5086] close(4 [pid 5056] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5089] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5088] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5086] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5089] <... chdir resumed>) = 0 [pid 5088] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5086] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... mknod resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5089] ioctl(4, LOOP_CLR_FD [pid 5088] <... futex resumed>) = 1 [pid 5087] <... chdir resumed>) = 0 [pid 5086] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] ioctl(4, LOOP_CLR_FD [pid 5086] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5085] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5089] close(4 [pid 5088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5087] <... ioctl resumed>) = 0 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5085] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5081] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5089] <... close resumed>) = 0 [pid 5088] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5087] close(4 [pid 5086] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5085] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... close resumed>) = 0 [pid 5081] <... futex resumed>) = 0 [pid 5081] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... futex resumed>) = 1 [pid 5087] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5083] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5087] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5089] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5088] <... mknod resumed>) = 0 [pid 5087] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] <... mknod resumed>) = 0 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5084] <... futex resumed>) = 0 [pid 5089] <... mknod resumed>) = 0 [pid 5088] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... open resumed>) = 4 [pid 5084] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 56.729622][ T5087] loop3: detected capacity change from 0 to 1024 [pid 5089] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 1 [pid 5087] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5086] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5088] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5085] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5082] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = 0 [pid 5089] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5086] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5083] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5085] <... futex resumed>) = 1 [pid 5083] <... futex resumed>) = 0 [pid 5082] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 0 [pid 5079] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... open resumed>) = 4 [pid 5087] <... mknod resumed>) = 0 [pid 5085] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... futex resumed>) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5056] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5087] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... open resumed>) = 4 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5089] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5083] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5083] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5084] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] <... futex resumed>) = 0 [pid 5081] <... futex resumed>) = 0 [pid 5056] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] sync( [pid 5084] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5087] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5056] <... openat resumed>) = 4 [pid 5088] <... open resumed>) = 4 [pid 5086] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] sync( [pid 5086] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5086] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5088] <... futex resumed>) = 1 [pid 5086] sync( [pid 5079] <... futex resumed>) = 0 [pid 5088] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, [pid 5079] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5088] sync( [pid 5079] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5087] <... open resumed>) = 4 [pid 5056] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5087] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... sync resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5085] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./1/binderfs" [pid 5085] <... futex resumed>) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5085] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] exit_group(0 [pid 5085] <... futex resumed>) = ? [pid 5081] <... exit_group resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5083] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5081] +++ exited with 0 +++ [pid 5056] <... unlink resumed>) = 0 [pid 5089] <... sync resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5084] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5089] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] sync( [pid 5084] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5089] <... futex resumed>) = 0 [pid 5088] <... sync resumed>) = 0 [pid 5087] <... sync resumed>) = 0 [pid 5086] <... sync resumed>) = 0 [pid 5084] <... futex resumed>) = 0 [pid 5082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5079] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5056] getdents64(3, [pid 5087] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] exit_group(0 [pid 5088] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = 0 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5083] <... exit_group resumed>) = ? [pid 5082] exit_group(0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5088] <... futex resumed>) = 0 [pid 5087] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] exit_group(0 [pid 5082] <... exit_group resumed>) = ? [pid 5089] +++ exited with 0 +++ [pid 5088] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] <... futex resumed>) = ? [pid 5084] <... exit_group resumed>) = ? [pid 5083] +++ exited with 0 +++ [pid 5057] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5086] +++ exited with 0 +++ [pid 5082] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5079] exit_group(0 [pid 5055] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... futex resumed>) = ? [pid 5087] +++ exited with 0 +++ [pid 5079] <... exit_group resumed>) = ? [pid 5056] rmdir("./1" [pid 5088] +++ exited with 0 +++ [pid 5056] <... rmdir resumed>) = 0 [pid 5079] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5057] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] <... openat resumed>) = 3 [pid 5055] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] mkdir("./2", 0777 [pid 5060] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(3, "", [pid 5060] <... openat resumed>) = 3 [pid 5057] newfstatat(3, "", [pid 5060] newfstatat(3, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5060] getdents64(3, [pid 5055] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] getdents64(3, [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5060] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5084] +++ exited with 0 +++ [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... openat resumed>) = 3 [pid 5055] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5057] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5059] <... openat resumed>) = 3 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] newfstatat(3, "", [pid 5056] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5090 attached [pid 5059] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5090 [pid 5090] set_robust_list(0x555555d616a0, 24) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5058] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5090] chdir("./2" [pid 5060] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5055] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... chdir resumed>) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] <... prctl resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5090] setpgid(0, 0 [pid 5058] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5090] <... setpgid resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... openat resumed>) = 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(4, "", [pid 5057] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5090] write(3, "1000", 4 [pid 5059] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5090] <... write resumed>) = 4 [pid 5055] <... openat resumed>) = 4 [pid 5090] close(3 [pid 5060] <... openat resumed>) = 4 [pid 5059] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(4, "", [pid 5090] <... close resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5059] newfstatat(4, "", [pid 5058] getdents64(4, [pid 5057] <... openat resumed>) = 4 [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] newfstatat(4, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5090] <... symlink resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] getdents64(4, [pid 5058] getdents64(4, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(4, [pid 5090] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5058] close(4 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5090] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... close resumed>) = 0 [pid 5057] getdents64(4, [pid 5055] getdents64(4, [pid 5060] close(4 [pid 5058] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] close(4 [pid 5060] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... close resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5090] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(4, [pid 5058] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5057] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5090] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./1/binderfs" [pid 5060] unlink("./1/binderfs" [pid 5058] <... unlink resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5060] <... unlink resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] getdents64(3, [pid 5058] getdents64(3, [pid 5057] unlink("./1/binderfs" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] close(3 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5060] <... close resumed>) = 0 [pid 5058] close(3 [pid 5057] <... unlink resumed>) = 0 [pid 5060] rmdir("./1" [pid 5058] <... close resumed>) = 0 [pid 5090] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] close(4 [pid 5058] rmdir("./1" [pid 5057] getdents64(3, [pid 5055] <... close resumed>) = 0 [pid 5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... close resumed>) = 0 [pid 5055] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] mkdir("./2", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] close(3 [pid 5058] mkdir("./2", 0777 [pid 5057] <... close resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... mkdir resumed>) = 0 [pid 5057] rmdir("./1" [pid 5060] <... openat resumed>) = 3 [pid 5057] <... rmdir resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5057] mkdir("./2", 0777 [pid 5060] close(3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... mkdir resumed>) = 0 [pid 5090] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] <... close resumed>) = 0 [pid 5059] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5090] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... rmdir resumed>) = 0 [pid 5058] close(3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5092 attached [pid 5090] <... mprotect resumed>) = 0 [pid 5059] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] set_robust_list(0x555555d616a0, 24 [pid 5090] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5092] <... set_robust_list resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5092 [pid 5055] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5092] chdir("./2" [pid 5090] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5057] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5093 attached [pid 5092] <... chdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5093] set_robust_list(0x555555d616a0, 24 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached [pid 5092] <... prctl resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./1/binderfs" [pid 5094] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5092] setpgid(0, 0 [pid 5090] <... clone3 resumed> => {parent_tid=[5094]}, 88) = 5094 [pid 5059] unlink("./1/binderfs" [pid 5093] <... set_robust_list resumed>) = 0 [pid 5092] <... setpgid resumed>) = 0 [pid 5094] <... rseq resumed>) = 0 [pid 5093] chdir("./2" [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5093 [pid 5055] <... unlink resumed>) = 0 [pid 5094] set_robust_list(0x7f923ecf19a0, 24 [pid 5093] <... chdir resumed>) = 0 [pid 5092] <... openat resumed>) = 3 [pid 5090] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] getdents64(3, [pid 5055] getdents64(3, [pid 5094] <... set_robust_list resumed>) = 0 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5092] write(3, "1000", 4 [pid 5090] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5095 attached [pid 5094] rt_sigprocmask(SIG_SETMASK, [], [pid 5093] <... prctl resumed>) = 0 [pid 5092] <... write resumed>) = 4 [pid 5090] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5095] set_robust_list(0x555555d616a0, 24 [pid 5094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5093] setpgid(0, 0 [pid 5092] close(3 [pid 5090] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] close(3 [pid 5055] close(3 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] memfd_create("syzkaller", 0 [pid 5093] <... setpgid resumed>) = 0 [pid 5092] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5095 [pid 5055] <... close resumed>) = 0 [pid 5095] chdir("./2" [pid 5094] <... memfd_create resumed>) = 3 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5092] symlink("/dev/binderfs", "./binderfs" [pid 5059] rmdir("./1" [pid 5055] rmdir("./1" [pid 5095] <... chdir resumed>) = 0 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] <... openat resumed>) = 3 [pid 5092] <... symlink resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... rmdir resumed>) = 0 [pid 5094] <... mmap resumed>) = 0x7f92368d1000 [pid 5095] <... prctl resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5095] setpgid(0, 0 [pid 5093] write(3, "1000", 4 [pid 5092] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... setpgid resumed>) = 0 [pid 5093] <... write resumed>) = 4 [pid 5092] <... futex resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] close(3 [pid 5092] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5095] <... openat resumed>) = 3 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5093] <... close resumed>) = 0 [pid 5092] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] mkdir("./2", 0777 [pid 5095] write(3, "1000", 4 [pid 5093] symlink("/dev/binderfs", "./binderfs" [pid 5095] <... write resumed>) = 4 [pid 5093] <... symlink resumed>) = 0 [pid 5092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... mkdir resumed>) = 0 [pid 5095] close(3) = 0 [pid 5092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] mkdir("./2", 0777 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] symlink("/dev/binderfs", "./binderfs" [pid 5093] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5095] <... symlink resumed>) = 0 [pid 5093] <... futex resumed>) = 0 [pid 5092] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... mkdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5093] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5095] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5092] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5095] <... futex resumed>) = 0 [pid 5093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5095] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5093] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5092] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] close(3 [pid 5095] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5092] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5093] <... mmap resumed>) = 0x7f923ecd1000 [pid 5092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5096 attached [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5093] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5096] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5093] <... mprotect resumed>) = 0 [pid 5092] <... clone3 resumed> => {parent_tid=[5096]}, 88) = 5096 [pid 5096] <... rseq resumed>) = 0 [pid 5095] <... mmap resumed>) = 0x7f923ecd1000 [pid 5093] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5096] set_robust_list(0x7f923ecf19a0, 24 [pid 5095] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5092] rt_sigprocmask(SIG_SETMASK, [], [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] <... mprotect resumed>) = 0 [pid 5093] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5096] rt_sigprocmask(SIG_SETMASK, [], [pid 5092] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5092] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5098 attached [pid 5096] memfd_create("syzkaller", 0 [pid 5095] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5092] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5098] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5096] <... memfd_create resumed>) = 3 [pid 5095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5093] <... clone3 resumed> => {parent_tid=[5098]}, 88) = 5098 [pid 5098] <... rseq resumed>) = 0 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] rt_sigprocmask(SIG_SETMASK, [], [pid 5098] set_robust_list(0x7f923ecf19a0, 24 [pid 5096] <... mmap resumed>) = 0x7f92368d1000 [pid 5093] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5099 attached [pid 5098] <... set_robust_list resumed>) = 0 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5093] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5098] rt_sigprocmask(SIG_SETMASK, [], [pid 5099] <... rseq resumed>) = 0 [pid 5099] set_robust_list(0x7f923ecf19a0, 24 [pid 5098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5098] memfd_create("syzkaller", 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5099] rt_sigprocmask(SIG_SETMASK, [], [pid 5095] <... clone3 resumed> => {parent_tid=[5099]}, 88) = 5099 [pid 5093] <... futex resumed>) = 0 [pid 5099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] rt_sigprocmask(SIG_SETMASK, [], [pid 5093] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5099] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5099] memfd_create("syzkaller", 0 [pid 5095] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5097 ./strace-static-x86_64: Process 5097 attached [pid 5099] <... memfd_create resumed>) = 3 [pid 5098] <... memfd_create resumed>) = 3 [pid 5094] <... write resumed>) = 524288 [pid 5059] close(3 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5097] set_robust_list(0x555555d616a0, 24 [pid 5096] <... write resumed>) = 524288 [pid 5094] munmap(0x7f92368d1000, 138412032 [pid 5059] <... close resumed>) = 0 [pid 5099] <... mmap resumed>) = 0x7f92368d1000 [pid 5098] <... mmap resumed>) = 0x7f92368d1000 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5100 attached [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5097] chdir("./2" [pid 5094] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5100] set_robust_list(0x555555d616a0, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5100 [pid 5094] <... openat resumed>) = 4 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5097] <... chdir resumed>) = 0 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5100] chdir("./2" [pid 5098] <... write resumed>) = 524288 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] <... chdir resumed>) = 0 [pid 5097] <... prctl resumed>) = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... write resumed>) = 524288 [pid 5097] setpgid(0, 0 [pid 5096] munmap(0x7f92368d1000, 138412032 [pid 5100] <... prctl resumed>) = 0 [pid 5097] <... setpgid resumed>) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] <... munmap resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5100] <... openat resumed>) = 3 [pid 5096] <... openat resumed>) = 4 [pid 5100] write(3, "1000", 4 [pid 5097] <... openat resumed>) = 3 [pid 5100] <... write resumed>) = 4 [pid 5097] write(3, "1000", 4 [pid 5100] close(3 [pid 5097] <... write resumed>) = 4 [pid 5100] <... close resumed>) = 0 [pid 5097] close(3 [pid 5100] symlink("/dev/binderfs", "./binderfs" [pid 5097] <... close resumed>) = 0 [pid 5098] munmap(0x7f92368d1000, 138412032 [pid 5096] ioctl(4, LOOP_SET_FD, 3 [pid 5094] <... ioctl resumed>) = 0 [pid 5100] <... symlink resumed>) = 0 [pid 5098] <... munmap resumed>) = 0 [pid 5097] symlink("/dev/binderfs", "./binderfs" [pid 5094] close(3 [pid 5100] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... close resumed>) = 0 [pid 5094] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5098] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5097] <... symlink resumed>) = 0 [pid 5098] <... openat resumed>) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3 [pid 5100] <... futex resumed>) = 0 [pid 5097] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... mkdir resumed>) = 0 [pid 5099] munmap(0x7f92368d1000, 138412032) = 0 [ 57.148391][ T5094] loop1: detected capacity change from 0 to 1024 [ 57.171990][ T5096] loop5: detected capacity change from 0 to 1024 [ 57.181552][ T5098] loop3: detected capacity change from 0 to 1024 [pid 5099] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5099] ioctl(4, LOOP_SET_FD, 3 [pid 5100] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5097] <... futex resumed>) = 0 [pid 5094] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5100] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5097] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5097] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] <... mmap resumed>) = 0x7f923ecd1000 [pid 5097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5096] <... ioctl resumed>) = 0 [pid 5100] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5097] <... mmap resumed>) = 0x7f923ecd1000 [pid 5096] close(3 [pid 5100] <... mprotect resumed>) = 0 [pid 5097] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5096] <... close resumed>) = 0 [pid 5097] <... mprotect resumed>) = 0 [pid 5096] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5100] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5097] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5096] <... mkdir resumed>) = 0 [pid 5100] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5098] <... ioctl resumed>) = 0 [pid 5097] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5096] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5098] close(3 [pid 5100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5098] <... close resumed>) = 0 [pid 5097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5098] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777./strace-static-x86_64: Process 5102 attached ./strace-static-x86_64: Process 5101 attached [pid 5100] <... clone3 resumed> => {parent_tid=[5101]}, 88) = 5101 [pid 5098] <... mkdir resumed>) = 0 [pid 5102] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5101] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5100] rt_sigprocmask(SIG_SETMASK, [], [pid 5099] <... ioctl resumed>) = 0 [pid 5098] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5097] <... clone3 resumed> => {parent_tid=[5102]}, 88) = 5102 [pid 5094] <... mount resumed>) = 0 [pid 5102] <... rseq resumed>) = 0 [pid 5101] <... rseq resumed>) = 0 [pid 5100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] close(3 [pid 5097] rt_sigprocmask(SIG_SETMASK, [], [pid 5096] <... mount resumed>) = 0 [pid 5094] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5102] set_robust_list(0x7f923ecf19a0, 24 [pid 5101] set_robust_list(0x7f923ecf19a0, 24 [pid 5100] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... close resumed>) = 0 [pid 5097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5096] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5094] <... openat resumed>) = 3 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5100] <... futex resumed>) = 0 [pid 5099] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5097] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... openat resumed>) = 3 [pid 5094] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5102] rt_sigprocmask(SIG_SETMASK, [], [pid 5101] rt_sigprocmask(SIG_SETMASK, [], [pid 5100] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5097] <... futex resumed>) = 0 [pid 5096] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5094] <... chdir resumed>) = 0 [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] <... mkdir resumed>) = 0 [pid 5097] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5096] <... chdir resumed>) = 0 [pid 5094] ioctl(4, LOOP_CLR_FD [pid 5102] memfd_create("syzkaller", 0 [pid 5101] memfd_create("syzkaller", 0 [pid 5099] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5096] ioctl(4, LOOP_CLR_FD [pid 5094] <... ioctl resumed>) = 0 [pid 5102] <... memfd_create resumed>) = 3 [pid 5101] <... memfd_create resumed>) = 3 [pid 5098] <... mount resumed>) = 0 [pid 5096] <... ioctl resumed>) = 0 [pid 5094] close(4 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] <... mount resumed>) = 0 [pid 5098] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5096] close(4 [pid 5094] <... close resumed>) = 0 [pid 5102] <... mmap resumed>) = 0x7f92368d1000 [pid 5101] <... mmap resumed>) = 0x7f92368d1000 [pid 5099] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5098] <... openat resumed>) = 3 [pid 5094] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... close resumed>) = 0 [pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5099] <... openat resumed>) = 3 [pid 5098] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5090] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5096] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5090] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... chdir resumed>) = 0 [pid 5098] ioctl(4, LOOP_CLR_FD [pid 5096] <... futex resumed>) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5098] <... ioctl resumed>) = 0 [pid 5096] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5098] close(4 [pid 5092] <... futex resumed>) = 0 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5099] <... chdir resumed>) = 0 [ 57.192656][ T5099] loop2: detected capacity change from 0 to 1024 [pid 5098] <... close resumed>) = 0 [pid 5092] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] ioctl(4, LOOP_CLR_FD) = 0 [pid 5099] close(4) = 0 [pid 5099] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5095] <... futex resumed>) = 0 [pid 5092] <... futex resumed>) = 1 [pid 5099] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5098] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 1 [pid 5095] <... futex resumed>) = 0 [pid 5094] <... mknod resumed>) = 0 [pid 5093] <... futex resumed>) = 0 [pid 5098] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5096] <... futex resumed>) = 0 [pid 5095] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5094] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5094] <... futex resumed>) = 1 [pid 5093] <... futex resumed>) = 0 [pid 5090] <... futex resumed>) = 0 [pid 5094] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... write resumed>) = 524288 [pid 5099] <... mknod resumed>) = 0 [pid 5096] <... mknod resumed>) = 0 [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] <... futex resumed>) = 0 [pid 5094] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5090] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... mknod resumed>) = 0 [pid 5099] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] munmap(0x7f92368d1000, 138412032 [pid 5099] <... futex resumed>) = 1 [pid 5098] <... futex resumed>) = 1 [pid 5095] <... futex resumed>) = 0 [pid 5093] <... futex resumed>) = 0 [pid 5102] <... munmap resumed>) = 0 [pid 5101] <... write resumed>) = 524288 [pid 5099] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5095] <... futex resumed>) = 0 [pid 5093] <... futex resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5099] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5098] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5095] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... openat resumed>) = 4 [pid 5101] munmap(0x7f92368d1000, 138412032 [pid 5099] <... open resumed>) = 4 [pid 5096] <... futex resumed>) = 1 [pid 5094] <... open resumed>) = 4 [pid 5092] <... futex resumed>) = 0 [pid 5102] ioctl(4, LOOP_SET_FD, 3 [pid 5101] <... munmap resumed>) = 0 [pid 5098] <... open resumed>) = 4 [pid 5096] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... ioctl resumed>) = 0 [pid 5099] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5098] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5098] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] <... futex resumed>) = 1 [pid 5096] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5090] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 1 [pid 5093] <... futex resumed>) = 0 [pid 5090] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] <... openat resumed>) = 4 [pid 5090] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5094] sync( [pid 5101] ioctl(4, LOOP_SET_FD, 3 [pid 5099] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5095] <... futex resumed>) = 0 [pid 5093] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5095] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] sync( [pid 5095] <... futex resumed>) = 1 [pid 5093] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] sync( [pid 5095] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] close(3 [pid 5096] <... open resumed>) = 4 [pid 5102] <... close resumed>) = 0 [pid 5101] <... ioctl resumed>) = 0 [pid 5096] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] close(3 [pid 5096] <... futex resumed>) = 1 [pid 5101] <... close resumed>) = 0 [pid 5096] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5092] <... futex resumed>) = 1 [pid 5101] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5096] <... futex resumed>) = 0 [pid 5092] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] sync( [pid 5102] <... mkdir resumed>) = 0 [pid 5102] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5101] <... mount resumed>) = 0 [pid 5101] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5094] <... sync resumed>) = 0 [ 57.275495][ T5102] loop0: detected capacity change from 0 to 1024 [ 57.289090][ T5101] loop4: detected capacity change from 0 to 1024 [pid 5101] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5099] <... sync resumed>) = 0 [pid 5094] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5095] exit_group(0) = ? [pid 5099] <... futex resumed>) = ? [pid 5101] <... chdir resumed>) = 0 [pid 5096] <... sync resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5093] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5090] <... futex resumed>) = 0 [pid 5090] exit_group(0) = ? [pid 5101] ioctl(4, LOOP_CLR_FD) = 0 [pid 5096] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] close(4 [pid 5096] <... futex resumed>) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5101] <... close resumed>) = 0 [pid 5101] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] <... mount resumed>) = 0 [pid 5101] <... futex resumed>) = 1 [pid 5100] <... futex resumed>) = 0 [pid 5092] exit_group(0 [pid 5102] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5100] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = ? [pid 5092] <... exit_group resumed>) = ? [pid 5102] <... openat resumed>) = 3 [pid 5101] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5102] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5100] <... futex resumed>) = 0 [pid 5096] +++ exited with 0 +++ [pid 5092] +++ exited with 0 +++ [pid 5102] <... chdir resumed>) = 0 [pid 5101] <... mknod resumed>) = 0 [pid 5100] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] +++ exited with 0 +++ [pid 5095] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5102] ioctl(4, LOOP_CLR_FD) = 0 [pid 5102] close(4 [pid 5098] <... sync resumed>) = 0 [pid 5094] +++ exited with 0 +++ [pid 5090] +++ exited with 0 +++ [pid 5060] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] <... close resumed>) = 0 [pid 5098] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] exit_group(0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5098] <... futex resumed>) = ? [pid 5093] <... exit_group resumed>) = ? [pid 5060] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5101] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] +++ exited with 0 +++ [pid 5093] +++ exited with 0 +++ [pid 5060] <... openat resumed>) = 3 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5060] getdents64(3, [pid 5058] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 1 [pid 5100] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5102] <... futex resumed>) = 1 [pid 5101] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5100] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5102] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] <... openat resumed>) = 3 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5100] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", [pid 5056] <... restart_syscall resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5100] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] getdents64(3, [pid 5057] newfstatat(3, "", [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, [pid 5057] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = 0 [pid 5097] <... futex resumed>) = 1 [pid 5097] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 0 [pid 5102] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0 [pid 5101] <... open resumed>) = 4 [pid 5101] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 1 [pid 5100] <... futex resumed>) = 0 [pid 5101] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] <... futex resumed>) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] sync( [pid 5100] <... futex resumed>) = 0 [pid 5100] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5102] <... open resumed>) = 4 [pid 5060] getdents64(4, [pid 5102] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4 [pid 5102] <... futex resumed>) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] sync( [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5060] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5060] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./2/binderfs") = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5060] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3 [pid 5057] <... umount2 resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5060] rmdir("./2" [pid 5058] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] <... rmdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5100] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5101] <... sync resumed>) = 0 [pid 5102] <... sync resumed>) = 0 [pid 5102] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5102] <... futex resumed>) = 1 [pid 5101] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5102] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] <... futex resumed>) = 0 [pid 5060] mkdir("./3", 0777 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... futex resumed>) = 0 [pid 5097] exit_group(0) = ? [pid 5056] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... mkdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5100] exit_group(0) = ? [pid 5056] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] <... futex resumed>) = ? [pid 5101] +++ exited with 0 +++ [pid 5100] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5102] +++ exited with 0 +++ [pid 5097] +++ exited with 0 +++ [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5060] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 4 [pid 5055] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 4 [pid 5058] <... openat resumed>) = 4 [pid 5057] newfstatat(4, "", [pid 5058] newfstatat(4, "", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5058] getdents64(4, [pid 5057] getdents64(4, [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5055] newfstatat(3, "", [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] close(3 [pid 5056] newfstatat(4, "", [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] newfstatat(3, "", [pid 5058] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4 [pid 5055] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5058] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... rmdir resumed>) = 0 [pid 5056] getdents64(4, [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] getdents64(3, [pid 5057] getdents64(4, [pid 5056] close(4 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5059] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(4 [pid 5056] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5057] <... close resumed>) = 0 [pid 5057] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./2/binderfs"./strace-static-x86_64: Process 5103 attached ) = 0 [pid 5056] unlink("./2/binderfs" [pid 5103] set_robust_list(0x555555d616a0, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5103 [pid 5058] getdents64(3, [pid 5057] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(3, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... set_robust_list resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3 [pid 5057] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5103] chdir("./3" [pid 5059] <... umount2 resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(3 [pid 5055] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] rmdir("./2" [pid 5057] unlink("./2/binderfs" [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... chdir resumed>) = 0 [pid 5059] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5103] setpgid(0, 0 [pid 5059] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5103] <... setpgid resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] rmdir("./2" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] mkdir("./3", 0777 [pid 5057] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5055] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] close(3 [pid 5055] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... mkdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5057] <... close resumed>) = 0 [pid 5056] mkdir("./3", 0777 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] rmdir("./2" [pid 5055] newfstatat(4, "", [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5103] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5103] write(3, "1000", 4 [pid 5059] <... openat resumed>) = 4 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] mkdir("./3", 0777 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5103] <... write resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5058] <... openat resumed>) = 3 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5103] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] close(4 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... openat resumed>) = 3 [pid 5056] close(3 [pid 5055] <... close resumed>) = 0 [pid 5058] close(3 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... close resumed>) = 0 [pid 5055] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... close resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5103] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached ./strace-static-x86_64: Process 5106 attached ./strace-static-x86_64: Process 5105 attached [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5104 [pid 5055] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5105] set_robust_list(0x555555d616a0, 24 [pid 5106] set_robust_list(0x555555d616a0, 24) = 0 [pid 5103] <... symlink resumed>) = 0 [pid 5106] chdir("./3" [pid 5105] <... set_robust_list resumed>) = 0 [pid 5103] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5059] close(4 [pid 5055] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5106] <... chdir resumed>) = 0 [pid 5105] chdir("./3" [pid 5104] set_robust_list(0x555555d616a0, 24 [pid 5103] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... close resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5106 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5105 [pid 5055] unlink("./2/binderfs" [pid 5059] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5106] <... prctl resumed>) = 0 [pid 5105] <... chdir resumed>) = 0 [pid 5104] <... set_robust_list resumed>) = 0 [pid 5103] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5106] setpgid(0, 0 [pid 5104] chdir("./3" [pid 5055] <... unlink resumed>) = 0 [pid 5106] <... setpgid resumed>) = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] <... chdir resumed>) = 0 [pid 5103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] <... prctl resumed>) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5106] <... openat resumed>) = 3 [pid 5105] setpgid(0, 0 [pid 5104] <... prctl resumed>) = 0 [pid 5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] close(3 [pid 5106] write(3, "1000", 4 [pid 5105] <... setpgid resumed>) = 0 [pid 5104] setpgid(0, 0 [pid 5103] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5055] <... close resumed>) = 0 [pid 5106] <... write resumed>) = 4 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5104] <... setpgid resumed>) = 0 [pid 5103] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] rmdir("./2" [pid 5106] close(3 [pid 5105] <... openat resumed>) = 3 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] <... mprotect resumed>) = 0 [pid 5059] unlink("./2/binderfs" [pid 5055] <... rmdir resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5105] write(3, "1000", 4 [pid 5103] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... unlink resumed>) = 0 [pid 5055] mkdir("./3", 0777 [pid 5106] symlink("/dev/binderfs", "./binderfs" [pid 5105] <... write resumed>) = 4 [pid 5104] <... openat resumed>) = 3 [pid 5103] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5105] close(3 [pid 5103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] getdents64(3, ./strace-static-x86_64: Process 5107 attached [pid 5105] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5107] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5106] <... symlink resumed>) = 0 [pid 5105] symlink("/dev/binderfs", "./binderfs" [pid 5104] write(3, "1000", 4 [pid 5103] <... clone3 resumed> => {parent_tid=[5107]}, 88) = 5107 [pid 5059] close(3 [pid 5055] <... openat resumed>) = 3 [pid 5107] <... rseq resumed>) = 0 [pid 5105] <... symlink resumed>) = 0 [pid 5104] <... write resumed>) = 4 [pid 5103] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... close resumed>) = 0 [pid 5107] set_robust_list(0x7f923ecf19a0, 24 [pid 5106] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] close(3 [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] rmdir("./2" [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5107] <... set_robust_list resumed>) = 0 [pid 5105] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... close resumed>) = 0 [pid 5103] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5107] rt_sigprocmask(SIG_SETMASK, [], [pid 5105] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 0 [pid 5107] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5105] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5103] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] close(3 [pid 5107] memfd_create("syzkaller", 0 [pid 5106] <... futex resumed>) = 0 [pid 5105] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs" [pid 5059] mkdir("./3", 0777 [pid 5107] <... memfd_create resumed>) = 3 [pid 5106] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5104] <... symlink resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... mmap resumed>) = 0x7f92368d1000 [pid 5106] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5104] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5105] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... openat resumed>) = 3 [pid 5106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5104] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x555555d616a0, 24 [pid 5106] <... mmap resumed>) = 0x7f923ecd1000 [pid 5104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5108] <... set_robust_list resumed>) = 0 [pid 5104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5106] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5106] <... mprotect resumed>) = 0 [pid 5108] chdir("./3" [pid 5105] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5108] <... chdir resumed>) = 0 [pid 5106] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5105] <... mprotect resumed>) = 0 [pid 5104] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5105] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5104] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] close(3 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5108 [pid 5105] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... close resumed>) = 0 [pid 5108] <... prctl resumed>) = 0 [pid 5106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5104] <... mprotect resumed>) = 0 [pid 5105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] setpgid(0, 0 [pid 5104] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5108] <... setpgid resumed>) = 0 [pid 5106] <... clone3 resumed> => {parent_tid=[5109]}, 88) = 5109 [pid 5104] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5109 attached [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5109] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053./strace-static-x86_64: Process 5112 attached ./strace-static-x86_64: Process 5110 attached ) = 0 [pid 5108] <... openat resumed>) = 3 [pid 5106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5105] <... clone3 resumed> => {parent_tid=[5110]}, 88) = 5110 ./strace-static-x86_64: Process 5111 attached [pid 5112] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5110] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5109] set_robust_list(0x7f923ecf19a0, 24 [pid 5108] write(3, "1000", 4 [pid 5106] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] <... clone3 resumed> => {parent_tid=[5112]}, 88) = 5112 [pid 5112] <... rseq resumed>) = 0 [pid 5111] set_robust_list(0x555555d616a0, 24 [pid 5110] <... rseq resumed>) = 0 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5108] <... write resumed>) = 4 [pid 5106] <... futex resumed>) = 0 [pid 5105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5111 [pid 5112] set_robust_list(0x7f923ecf19a0, 24 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] set_robust_list(0x7f923ecf19a0, 24 [pid 5109] rt_sigprocmask(SIG_SETMASK, [], [pid 5108] close(3 [pid 5107] <... write resumed>) = 524288 [pid 5106] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5105] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5111] chdir("./3" [pid 5109] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5105] <... futex resumed>) = 0 [pid 5104] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] rt_sigprocmask(SIG_SETMASK, [], [pid 5111] <... chdir resumed>) = 0 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5109] memfd_create("syzkaller", 0 [pid 5108] <... close resumed>) = 0 [pid 5107] munmap(0x7f92368d1000, 138412032 [pid 5105] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 0 [pid 5112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] <... memfd_create resumed>) = 3 [pid 5108] symlink("/dev/binderfs", "./binderfs" [pid 5107] <... munmap resumed>) = 0 [pid 5104] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5112] memfd_create("syzkaller", 0 [pid 5111] <... prctl resumed>) = 0 [pid 5110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... symlink resumed>) = 0 [pid 5112] <... memfd_create resumed>) = 3 [pid 5111] setpgid(0, 0 [pid 5110] memfd_create("syzkaller", 0 [pid 5109] <... mmap resumed>) = 0x7f92368d1000 [pid 5108] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5111] <... setpgid resumed>) = 0 [pid 5110] <... memfd_create resumed>) = 3 [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5107] <... openat resumed>) = 4 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5111] write(3, "1000", 4 [pid 5107] ioctl(4, LOOP_SET_FD, 3 [pid 5112] <... mmap resumed>) = 0x7f92368d1000 [pid 5111] <... write resumed>) = 4 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... futex resumed>) = 0 [pid 5111] close(3) = 0 [pid 5111] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5110] <... mmap resumed>) = 0x7f92368d1000 [pid 5109] <... write resumed>) = 524288 [pid 5108] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5111] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5108] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5111] <... mmap resumed>) = 0x7f923ecd1000 [pid 5111] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5111] <... mprotect resumed>) = 0 [pid 5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5111] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5108] <... mmap resumed>) = 0x7f923ecd1000 [pid 5107] <... ioctl resumed>) = 0 [pid 5109] munmap(0x7f92368d1000, 138412032 [pid 5108] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5111] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5109] <... munmap resumed>) = 0 [pid 5108] <... mprotect resumed>) = 0 [pid 5107] close(3 [pid 5111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5108] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5107] <... close resumed>) = 0 ./strace-static-x86_64: Process 5113 attached [pid 5109] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5108] <... rt_sigprocmask resumed>[], 8) = 0 [ 57.632135][ T5107] loop5: detected capacity change from 0 to 1024 [pid 5107] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5113] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5111] <... clone3 resumed> => {parent_tid=[5113]}, 88) = 5113 [pid 5109] <... openat resumed>) = 4 [pid 5108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5107] <... mkdir resumed>) = 0 [pid 5113] <... rseq resumed>) = 0 [pid 5111] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] ioctl(4, LOOP_SET_FD, 3 [pid 5107] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, ""./strace-static-x86_64: Process 5114 attached [pid 5113] set_robust_list(0x7f923ecf19a0, 24 [pid 5111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5109] <... ioctl resumed>) = 0 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5114] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5113] rt_sigprocmask(SIG_SETMASK, [], [pid 5112] <... write resumed>) = 524288 [pid 5111] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... clone3 resumed> => {parent_tid=[5114]}, 88) = 5114 [pid 5114] <... rseq resumed>) = 0 [pid 5113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] munmap(0x7f92368d1000, 138412032 [pid 5111] <... futex resumed>) = 0 [pid 5108] rt_sigprocmask(SIG_SETMASK, [], [pid 5113] memfd_create("syzkaller", 0 [pid 5112] <... munmap resumed>) = 0 [pid 5111] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5114] set_robust_list(0x7f923ecf19a0, 24 [pid 5108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] <... memfd_create resumed>) = 3 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5108] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] rt_sigprocmask(SIG_SETMASK, [], [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... futex resumed>) = 0 [pid 5114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5113] <... mmap resumed>) = 0x7f92368d1000 [pid 5112] <... openat resumed>) = 4 [pid 5108] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5114] memfd_create("syzkaller", 0 [pid 5112] ioctl(4, LOOP_SET_FD, 3 [pid 5110] <... write resumed>) = 524288 [pid 5107] <... mount resumed>) = 0 [pid 5110] munmap(0x7f92368d1000, 138412032) = 0 [pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5107] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5110] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5107] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 4 [pid 5107] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5110] ioctl(4, LOOP_SET_FD, 3 [pid 5109] close(3 [pid 5107] <... chdir resumed>) = 0 [pid 5114] <... memfd_create resumed>) = 3 [pid 5112] <... ioctl resumed>) = 0 [pid 5110] <... ioctl resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5112] close(3 [pid 5114] <... mmap resumed>) = 0x7f92368d1000 [pid 5112] <... close resumed>) = 0 [pid 5107] ioctl(4, LOOP_CLR_FD [pid 5110] close(3 [pid 5109] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5107] <... ioctl resumed>) = 0 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5113] <... write resumed>) = 524288 [pid 5112] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5110] <... close resumed>) = 0 [pid 5107] close(4 [pid 5113] munmap(0x7f92368d1000, 138412032 [pid 5109] <... mkdir resumed>) = 0 [pid 5107] <... close resumed>) = 0 [pid 5113] <... munmap resumed>) = 0 [pid 5112] <... mkdir resumed>) = 0 [pid 5110] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5109] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5107] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] <... futex resumed>) = 0 [pid 5110] <... mkdir resumed>) = 0 [pid 5103] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5112] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5110] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5107] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5113] <... openat resumed>) = 4 [ 57.674269][ T5109] loop2: detected capacity change from 0 to 1024 [ 57.696874][ T5112] loop1: detected capacity change from 0 to 1024 [ 57.705331][ T5110] loop3: detected capacity change from 0 to 1024 [pid 5107] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5103] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] ioctl(4, LOOP_SET_FD, 3 [pid 5107] <... mknod resumed>) = 0 [pid 5114] <... write resumed>) = 524288 [pid 5109] <... mount resumed>) = 0 [pid 5107] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5109] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5103] <... futex resumed>) = 0 [pid 5109] <... openat resumed>) = 3 [pid 5103] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5107] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5109] <... chdir resumed>) = 0 [pid 5107] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5103] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] ioctl(4, LOOP_CLR_FD [pid 5107] <... open resumed>) = 4 [pid 5109] <... ioctl resumed>) = 0 [pid 5109] close(4) = 0 [pid 5113] <... ioctl resumed>) = 0 [pid 5109] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 1 [pid 5107] <... futex resumed>) = 1 [pid 5103] <... futex resumed>) = 0 [pid 5109] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5107] sync( [pid 5106] <... futex resumed>) = 0 [pid 5103] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... mount resumed>) = 0 [pid 5106] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5113] close(3 [pid 5110] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5109] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5103] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] <... close resumed>) = 0 [pid 5112] <... mount resumed>) = 0 [pid 5110] <... openat resumed>) = 3 [pid 5109] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5106] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] munmap(0x7f92368d1000, 138412032 [pid 5113] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5112] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5110] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5109] <... mknod resumed>) = 0 [pid 5113] <... mkdir resumed>) = 0 [pid 5112] <... openat resumed>) = 3 [pid 5110] <... chdir resumed>) = 0 [pid 5109] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... munmap resumed>) = 0 [pid 5113] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5109] <... futex resumed>) = 1 [pid 5109] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] <... futex resumed>) = 0 [pid 5106] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5109] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5106] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... open resumed>) = 4 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5110] ioctl(4, LOOP_CLR_FD [pid 5114] <... openat resumed>) = 4 [pid 5112] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5110] <... ioctl resumed>) = 0 [ 57.738302][ T5113] loop4: detected capacity change from 0 to 1024 [pid 5114] ioctl(4, LOOP_SET_FD, 3 [pid 5113] <... mount resumed>) = 0 [pid 5112] <... chdir resumed>) = 0 [pid 5110] close(4 [pid 5109] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5112] ioctl(4, LOOP_CLR_FD [pid 5110] <... close resumed>) = 0 [pid 5112] <... ioctl resumed>) = 0 [pid 5110] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] close(4 [pid 5110] <... futex resumed>) = 1 [pid 5112] <... close resumed>) = 0 [pid 5110] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... openat resumed>) = 3 [pid 5112] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5104] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5109] sync( [pid 5107] <... sync resumed>) = 0 [pid 5106] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5112] <... futex resumed>) = 0 [pid 5107] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 1 [pid 5112] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5107] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 0 [pid 5105] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] exit_group(0 [pid 5114] <... ioctl resumed>) = 0 [pid 5113] <... chdir resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5106] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... futex resumed>) = 1 [pid 5103] <... exit_group resumed>) = ? [pid 5114] close(3 [pid 5113] ioctl(4, LOOP_CLR_FD [pid 5112] <... mknod resumed>) = 0 [pid 5110] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5107] +++ exited with 0 +++ [pid 5114] <... close resumed>) = 0 [pid 5112] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5113] <... ioctl resumed>) = 0 [pid 5112] <... futex resumed>) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5113] close(4 [pid 5110] <... mknod resumed>) = 0 [pid 5104] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] +++ exited with 0 +++ [pid 5114] <... mkdir resumed>) = 0 [pid 5113] <... close resumed>) = 0 [pid 5112] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5110] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5113] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5113] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5111] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] <... open resumed>) = 4 [pid 5111] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5104] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5113] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5110] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5105] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5112] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5112] <... futex resumed>) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5112] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5114] <... mount resumed>) = 0 [pid 5112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5110] <... open resumed>) = 4 [pid 5104] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5114] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5113] <... mknod resumed>) = 0 [pid 5112] sync( [pid 5104] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(3, [pid 5114] <... openat resumed>) = 3 [pid 5110] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5114] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5110] <... futex resumed>) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5060] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] <... chdir resumed>) = 0 [ 57.800112][ T5114] loop0: detected capacity change from 0 to 1024 [pid 5110] sync( [pid 5105] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] ioctl(4, LOOP_CLR_FD [pid 5113] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5114] <... ioctl resumed>) = 0 [pid 5113] <... futex resumed>) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5109] <... sync resumed>) = 0 [pid 5106] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5105] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] close(4 [pid 5113] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5111] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5111] <... futex resumed>) = 0 [pid 5109] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... close resumed>) = 0 [pid 5113] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5111] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5109] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] <... open resumed>) = 4 [pid 5114] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... sync resumed>) = 0 [pid 5112] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5114] <... futex resumed>) = 1 [pid 5108] <... futex resumed>) = 0 [pid 5106] exit_group(0 [pid 5104] exit_group(0 [pid 5114] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = ? [pid 5108] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... exit_group resumed>) = ? [pid 5104] <... exit_group resumed>) = ? [pid 5060] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 1 [pid 5112] +++ exited with 0 +++ [pid 5111] <... futex resumed>) = 0 [pid 5110] <... sync resumed>) = 0 [pid 5109] +++ exited with 0 +++ [pid 5108] <... futex resumed>) = 0 [pid 5106] +++ exited with 0 +++ [pid 5104] +++ exited with 0 +++ [pid 5114] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5113] sync( [pid 5111] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5114] <... mknod resumed>) = 0 [pid 5111] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5114] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] exit_group(0 [pid 5060] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5114] <... futex resumed>) = 1 [pid 5108] <... futex resumed>) = 0 [pid 5105] <... exit_group resumed>) = ? [pid 5057] <... restart_syscall resumed>) = 0 [pid 5114] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5110] +++ exited with 0 +++ [pid 5108] <... futex resumed>) = 0 [pid 5105] +++ exited with 0 +++ [pid 5060] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5108] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] <... open resumed>) = 4 [pid 5057] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5057] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] <... futex resumed>) = 1 [pid 5108] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5057] newfstatat(3, "", [pid 5056] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5114] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5057] getdents64(3, [pid 5056] newfstatat(3, "", [pid 5114] sync( [pid 5108] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5113] <... sync resumed>) = 0 [pid 5060] getdents64(4, [pid 5058] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5113] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5113] <... futex resumed>) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5058] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5113] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5056] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] newfstatat(3, "", [pid 5111] exit_group(0) = ? [pid 5113] <... futex resumed>) = ? [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5113] +++ exited with 0 +++ [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5111] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5058] <... umount2 resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./3/binderfs") = 0 [pid 5060] getdents64(3, [pid 5059] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] close(3 [pid 5059] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] <... sync resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5108] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5114] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./3" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5114] <... futex resumed>) = 0 [pid 5108] exit_group(0 [pid 5060] <... rmdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5108] <... exit_group resumed>) = ? [pid 5059] newfstatat(3, "", [pid 5058] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] mkdir("./4", 0777 [pid 5059] getdents64(3, [pid 5058] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] newfstatat(4, "", [pid 5057] newfstatat(4, "", [pid 5056] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... openat resumed>) = 3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(4, [pid 5056] <... openat resumed>) = 4 [pid 5055] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] getdents64(4, [pid 5060] close(3 [pid 5055] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] close(4 [pid 5055] <... openat resumed>) = 3 [pid 5058] close(4 [pid 5056] newfstatat(4, "", [pid 5058] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x555555d616a0, 24) = 0 [pid 5115] chdir("./4") = 0 [pid 5058] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5115] setpgid(0, 0) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5115 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5055] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5115] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5056] close(4 [pid 5115] write(3, "1000", 4 [pid 5058] unlink("./3/binderfs" [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5057] unlink("./3/binderfs" [pid 5056] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5115] <... write resumed>) = 4 [pid 5115] close(3) = 0 [pid 5115] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... rmdir resumed>) = 0 [pid 5115] <... symlink resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5057] close(3 [pid 5115] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5115] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... close resumed>) = 0 [pid 5115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... unlink resumed>) = 0 [pid 5057] rmdir("./3" [pid 5056] unlink("./3/binderfs" [pid 5115] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... umount2 resumed>) = 0 [pid 5115] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5115] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] mkdir("./4", 0777 [pid 5056] <... unlink resumed>) = 0 [pid 5115] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] getdents64(3, [pid 5115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5115] <... clone3 resumed> => {parent_tid=[5116]}, 88) = 5116 [pid 5116] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5115] rt_sigprocmask(SIG_SETMASK, [], [pid 5116] set_robust_list(0x7f923ecf19a0, 24 [pid 5115] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] <... set_robust_list resumed>) = 0 [pid 5115] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... mkdir resumed>) = 0 [pid 5056] close(3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5115] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] rmdir("./3" [pid 5055] <... umount2 resumed>) = 0 [pid 5116] memfd_create("syzkaller", 0 [pid 5115] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5058] close(3) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... rmdir resumed>) = 0 [pid 5116] <... memfd_create resumed>) = 3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] rmdir("./3" [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5059] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... rmdir resumed>) = 0 [pid 5057] close(3 [pid 5056] mkdir("./4", 0777 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5057] <... close resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] mkdir("./4", 0777 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... openat resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5058] <... mkdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5117 attached [pid 5059] getdents64(4, [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5117 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5117] set_robust_list(0x555555d616a0, 24 [pid 5059] close(4 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5059] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] <... set_robust_list resumed>) = 0 [pid 5058] close(3 [pid 5117] chdir("./4" [pid 5058] <... close resumed>) = 0 [pid 5117] <... chdir resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5118 attached [pid 5117] <... prctl resumed>) = 0 [pid 5116] <... write resumed>) = 524288 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] newfstatat(4, "", ./strace-static-x86_64: Process 5119 attached [pid 5117] setpgid(0, 0 [pid 5059] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] set_robust_list(0x555555d616a0, 24 [pid 5117] <... setpgid resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5119 [pid 5119] <... set_robust_list resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] set_robust_list(0x555555d616a0, 24 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5118 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5055] getdents64(4, [pid 5119] chdir("./4" [pid 5118] chdir("./4" [pid 5117] <... openat resumed>) = 3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5119] <... chdir resumed>) = 0 [pid 5118] <... chdir resumed>) = 0 [pid 5117] write(3, "1000", 4 [pid 5055] getdents64(4, [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] <... write resumed>) = 4 [pid 5119] <... prctl resumed>) = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] unlink("./3/binderfs" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5119] setpgid(0, 0 [pid 5118] <... prctl resumed>) = 0 [pid 5117] close(3 [pid 5055] close(4 [pid 5119] <... setpgid resumed>) = 0 [pid 5118] setpgid(0, 0 [pid 5117] <... close resumed>) = 0 [pid 5116] munmap(0x7f92368d1000, 138412032 [pid 5059] <... unlink resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] <... setpgid resumed>) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs" [pid 5116] <... munmap resumed>) = 0 [pid 5059] getdents64(3, [pid 5055] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5119] <... openat resumed>) = 3 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] <... symlink resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5119] write(3, "1000", 4 [pid 5118] <... openat resumed>) = 3 [pid 5117] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... openat resumed>) = 4 [pid 5059] close(3 [pid 5055] <... rmdir resumed>) = 0 [pid 5119] <... write resumed>) = 4 [pid 5118] write(3, "1000", 4 [pid 5117] <... futex resumed>) = 0 [pid 5116] ioctl(4, LOOP_SET_FD, 3 [pid 5059] <... close resumed>) = 0 [pid 5055] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] close(3 [pid 5118] <... write resumed>) = 4 [pid 5117] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5119] <... close resumed>) = 0 [pid 5117] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5119] symlink("/dev/binderfs", "./binderfs" [pid 5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5119] <... symlink resumed>) = 0 [pid 5118] close(3 [pid 5117] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] rmdir("./3" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5117] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... rmdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5117] <... mprotect resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5118] <... close resumed>) = 0 [pid 5117] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] mkdir("./4", 0777 [pid 5055] unlink("./3/binderfs" [pid 5118] symlink("/dev/binderfs", "./binderfs" [pid 5117] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5119] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... symlink resumed>) = 0 [pid 5117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5120 attached [pid 5119] <... futex resumed>) = 0 [pid 5118] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] <... unlink resumed>) = 0 [pid 5120] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5119] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5118] <... futex resumed>) = 0 [pid 5117] <... clone3 resumed> => {parent_tid=[5120]}, 88) = 5120 [pid 5059] <... openat resumed>) = 3 [pid 5055] getdents64(3, [pid 5120] <... rseq resumed>) = 0 [pid 5119] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5118] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5117] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5120] set_robust_list(0x7f923ecf19a0, 24 [pid 5119] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5118] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5117] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] close(3 [pid 5120] rt_sigprocmask(SIG_SETMASK, [], [pid 5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5117] <... futex resumed>) = 0 [pid 5116] close(3 [pid 5059] close(3 [pid 5055] <... close resumed>) = 0 [pid 5120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5119] <... mmap resumed>) = 0x7f923ecd1000 [pid 5118] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5117] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5116] <... close resumed>) = 0 [pid 5120] memfd_create("syzkaller", 0 [pid 5119] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5116] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] <... close resumed>) = 0 [pid 5055] rmdir("./3" [pid 5120] <... memfd_create resumed>) = 3 [pid 5119] <... mprotect resumed>) = 0 [pid 5118] <... mmap resumed>) = 0x7f923ecd1000 [pid 5116] <... mkdir resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5119] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5118] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] <... rmdir resumed>) = 0 [pid 5119] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5121 attached [pid 5120] <... mmap resumed>) = 0x7f92368d1000 [pid 5119] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5118] <... mprotect resumed>) = 0 [pid 5116] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] mkdir("./4", 0777./strace-static-x86_64: Process 5122 attached [pid 5121] set_robust_list(0x555555d616a0, 24 [pid 5118] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5121 [pid 5122] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5121] <... set_robust_list resumed>) = 0 [pid 5119] <... clone3 resumed> => {parent_tid=[5122]}, 88) = 5122 [pid 5118] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5122] <... rseq resumed>) = 0 [pid 5121] chdir("./4" [pid 5119] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5123 attached [pid 5122] set_robust_list(0x7f923ecf19a0, 24 [pid 5121] <... chdir resumed>) = 0 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5123] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5123] <... rseq resumed>) = 0 [pid 5122] rt_sigprocmask(SIG_SETMASK, [], [pid 5121] <... prctl resumed>) = 0 [pid 5119] <... futex resumed>) = 0 [pid 5118] <... clone3 resumed> => {parent_tid=[5123]}, 88) = 5123 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5123] set_robust_list(0x7f923ecf19a0, 24 [pid 5122] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5121] setpgid(0, 0 [pid 5119] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5118] rt_sigprocmask(SIG_SETMASK, [], [pid 5116] <... mount resumed>) = 0 [pid 5055] close(3 [pid 5123] <... set_robust_list resumed>) = 0 [pid 5122] memfd_create("syzkaller", 0 [pid 5121] <... setpgid resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5123] rt_sigprocmask(SIG_SETMASK, [], [pid 5122] <... memfd_create resumed>) = 3 [ 58.127956][ T5116] loop5: detected capacity change from 0 to 1024 [pid 5116] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] <... openat resumed>) = 3 [pid 5123] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] <... mmap resumed>) = 0x7f92368d1000 [pid 5116] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 ./strace-static-x86_64: Process 5124 attached [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5121] <... openat resumed>) = 3 [pid 5120] <... write resumed>) = 524288 [pid 5118] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] ioctl(4, LOOP_CLR_FD [pid 5124] set_robust_list(0x555555d616a0, 24 [pid 5123] <... futex resumed>) = 0 [pid 5118] <... futex resumed>) = 1 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5124 [pid 5123] memfd_create("syzkaller", 0 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5123] <... memfd_create resumed>) = 3 [pid 5121] write(3, "1000", 4 [pid 5120] munmap(0x7f92368d1000, 138412032 [pid 5118] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5116] <... ioctl resumed>) = 0 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5121] <... write resumed>) = 4 [pid 5124] chdir("./4" [pid 5123] <... mmap resumed>) = 0x7f92368d1000 [pid 5121] close(3 [pid 5116] close(4 [pid 5121] <... close resumed>) = 0 [pid 5116] <... close resumed>) = 0 [pid 5124] <... chdir resumed>) = 0 [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5122] <... write resumed>) = 524288 [pid 5121] symlink("/dev/binderfs", "./binderfs" [pid 5120] <... munmap resumed>) = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5116] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 1 [pid 5116] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5115] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... prctl resumed>) = 0 [pid 5121] <... symlink resumed>) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5116] <... mknod resumed>) = 0 [pid 5120] <... openat resumed>) = 4 [pid 5116] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] setpgid(0, 0 [pid 5120] ioctl(4, LOOP_SET_FD, 3 [pid 5116] <... futex resumed>) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5116] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5115] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5115] <... futex resumed>) = 0 [pid 5122] munmap(0x7f92368d1000, 138412032 [pid 5116] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5115] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... munmap resumed>) = 0 [pid 5116] <... open resumed>) = 4 [pid 5121] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... ioctl resumed>) = 0 [pid 5116] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... setpgid resumed>) = 0 [pid 5123] <... write resumed>) = 524288 [pid 5122] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5121] <... futex resumed>) = 0 [pid 5120] close(3 [pid 5116] <... futex resumed>) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5124] <... openat resumed>) = 3 [pid 5121] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5124] write(3, "1000", 4 [pid 5121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5120] <... close resumed>) = 0 [pid 5121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5120] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5120] <... mkdir resumed>) = 0 [pid 5121] <... mmap resumed>) = 0x7f923ecd1000 [pid 5120] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5121] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5115] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] sync( [pid 5122] <... openat resumed>) = 4 [pid 5121] <... mprotect resumed>) = 0 [pid 5121] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5124] <... write resumed>) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3 [pid 5121] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5124] close(3 [pid 5121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5124] <... close resumed>) = 0 [pid 5124] symlink("/dev/binderfs", "./binderfs" [pid 5121] <... clone3 resumed> => {parent_tid=[5125]}, 88) = 5125 [pid 5124] <... symlink resumed>) = 0 [pid 5123] munmap(0x7f92368d1000, 138412032 [pid 5121] rt_sigprocmask(SIG_SETMASK, [], [pid 5124] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... munmap resumed>) = 0 [pid 5121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5124] <... futex resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5121] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5123] <... openat resumed>) = 4 [pid 5121] <... futex resumed>) = 0 [pid 5124] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5123] ioctl(4, LOOP_SET_FD, 3 [pid 5121] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5125 attached [pid 5124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5122] <... ioctl resumed>) = 0 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5124] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5123] <... ioctl resumed>) = 0 [pid 5122] close(3 [pid 5125] set_robust_list(0x7f923ecf19a0, 24 [pid 5124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5123] close(3 [pid 5122] <... close resumed>) = 0 [pid 5125] <... set_robust_list resumed>) = 0 [pid 5124] <... mmap resumed>) = 0x7f923ecd1000 [pid 5123] <... close resumed>) = 0 [pid 5122] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5125] rt_sigprocmask(SIG_SETMASK, [], [pid 5124] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5123] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5122] <... mkdir resumed>) = 0 [pid 5125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5124] <... mprotect resumed>) = 0 [pid 5123] <... mkdir resumed>) = 0 [pid 5122] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5120] <... mount resumed>) = 0 [pid 5125] memfd_create("syzkaller", 0 [pid 5124] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5125] <... memfd_create resumed>) = 3 [pid 5124] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5120] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5123] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, ""./strace-static-x86_64: Process 5126 attached [pid 5125] <... mmap resumed>) = 0x7f92368d1000 [pid 5123] <... mount resumed>) = 0 [pid 5120] <... openat resumed>) = 3 [pid 5126] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5124] <... clone3 resumed> => {parent_tid=[5126]}, 88) = 5126 [pid 5120] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5126] <... rseq resumed>) = 0 [pid 5124] rt_sigprocmask(SIG_SETMASK, [], [pid 5120] <... chdir resumed>) = 0 [pid 5126] set_robust_list(0x7f923ecf19a0, 24 [pid 5124] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5120] ioctl(4, LOOP_CLR_FD [pid 5123] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5126] <... set_robust_list resumed>) = 0 [pid 5124] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... ioctl resumed>) = 0 [pid 5126] rt_sigprocmask(SIG_SETMASK, [], [pid 5124] <... futex resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5120] close(4 [pid 5126] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5123] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5122] <... mount resumed>) = 0 [pid 5124] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5123] <... chdir resumed>) = 0 [pid 5122] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5120] <... close resumed>) = 0 [pid 5126] memfd_create("syzkaller", 0 [pid 5123] ioctl(4, LOOP_CLR_FD [pid 5122] <... openat resumed>) = 3 [pid 5120] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... sync resumed>) = 0 [pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5126] <... memfd_create resumed>) = 3 [pid 5123] <... ioctl resumed>) = 0 [pid 5122] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5120] <... futex resumed>) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5116] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5123] close(4 [pid 5122] <... chdir resumed>) = 0 [pid 5120] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5126] <... mmap resumed>) = 0x7f92368d1000 [pid 5120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] <... futex resumed>) = 0 [pid 5115] exit_group(0 [pid 5122] ioctl(4, LOOP_CLR_FD [pid 5120] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5117] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] <... exit_group resumed>) = ? [pid 5123] <... close resumed>) = 0 [pid 5122] <... ioctl resumed>) = 0 [ 58.216026][ T5120] loop2: detected capacity change from 0 to 1024 [ 58.241528][ T5122] loop3: detected capacity change from 0 to 1024 [ 58.245479][ T5123] loop1: detected capacity change from 0 to 1024 [pid 5123] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] close(4 [pid 5116] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ [pid 5125] <... write resumed>) = 524288 [pid 5123] <... futex resumed>) = 1 [pid 5122] <... close resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5060] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5118] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5119] <... futex resumed>) = 0 [pid 5118] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5123] <... futex resumed>) = 0 [pid 5120] <... mknod resumed>) = 0 [pid 5119] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 1 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5125] munmap(0x7f92368d1000, 138412032 [pid 5123] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5122] <... futex resumed>) = 0 [pid 5120] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 1 [pid 5118] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(3, [pid 5125] <... munmap resumed>) = 0 [pid 5122] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5119] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5125] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5122] <... mknod resumed>) = 0 [pid 5120] <... futex resumed>) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5125] <... openat resumed>) = 4 [pid 5122] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] ioctl(4, LOOP_SET_FD, 3 [pid 5123] <... mknod resumed>) = 0 [pid 5122] <... futex resumed>) = 1 [pid 5120] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5119] <... futex resumed>) = 0 [pid 5117] <... futex resumed>) = 0 [pid 5060] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... write resumed>) = 524288 [pid 5123] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5119] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] <... futex resumed>) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5122] <... open resumed>) = 4 [pid 5118] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... open resumed>) = 4 [pid 5118] <... futex resumed>) = 0 [pid 5122] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] sync( [pid 5119] <... futex resumed>) = 0 [pid 5120] <... futex resumed>) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5119] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5117] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] <... open resumed>) = 4 [pid 5123] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] sync( [pid 5126] munmap(0x7f92368d1000, 138412032 [pid 5123] <... futex resumed>) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5118] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5126] <... munmap resumed>) = 0 [pid 5118] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] sync( [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] ioctl(4, LOOP_SET_FD, 3 [pid 5125] <... ioctl resumed>) = 0 [pid 5126] <... ioctl resumed>) = 0 [pid 5125] close(3 [pid 5126] close(3 [pid 5125] <... close resumed>) = 0 [pid 5126] <... close resumed>) = 0 [pid 5126] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5125] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5120] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5123] <... sync resumed>) = 0 [pid 5120] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... futex resumed>) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5123] <... futex resumed>) = 1 [pid 5120] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5118] <... futex resumed>) = 0 [pid 5117] exit_group(0 [pid 5126] <... mkdir resumed>) = 0 [pid 5125] <... mkdir resumed>) = 0 [pid 5123] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] <... sync resumed>) = 0 [pid 5120] <... futex resumed>) = ? [pid 5118] exit_group(0 [pid 5117] <... exit_group resumed>) = ? [pid 5060] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5122] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] +++ exited with 0 +++ [pid 5119] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5125] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5123] <... futex resumed>) = ? [pid 5122] <... futex resumed>) = 0 [pid 5118] <... exit_group resumed>) = ? [pid 5117] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] +++ exited with 0 +++ [pid 5122] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5119] exit_group(0 [pid 5118] +++ exited with 0 +++ [pid 5060] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5122] <... futex resumed>) = ? [pid 5119] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 58.320455][ T5125] loop4: detected capacity change from 0 to 1024 [ 58.345693][ T5126] loop0: detected capacity change from 0 to 1024 [pid 5122] +++ exited with 0 +++ [pid 5119] +++ exited with 0 +++ [pid 5060] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5125] <... mount resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5126] <... mount resumed>) = 0 [pid 5125] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] <... restart_syscall resumed>) = 0 [pid 5126] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5125] <... openat resumed>) = 3 [pid 5060] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... openat resumed>) = 3 [pid 5125] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... openat resumed>) = 4 [pid 5058] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5125] <... chdir resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5126] <... chdir resumed>) = 0 [pid 5125] ioctl(4, LOOP_CLR_FD [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... openat resumed>) = 3 [pid 5056] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] ioctl(4, LOOP_CLR_FD [pid 5125] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] newfstatat(3, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... ioctl resumed>) = 0 [pid 5125] close(4 [pid 5060] getdents64(4, [pid 5058] newfstatat(3, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5126] close(4 [pid 5125] <... close resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, [pid 5056] <... openat resumed>) = 3 [pid 5126] <... close resumed>) = 0 [pid 5125] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] newfstatat(3, "", [pid 5060] getdents64(4, [pid 5126] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5126] <... futex resumed>) = 1 [pid 5125] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] <... futex resumed>) = 0 [pid 5121] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5058] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5124] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5121] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5126] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5124] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5126] <... mknod resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5126] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... mknod resumed>) = 0 [pid 5124] <... futex resumed>) = 0 [pid 5126] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5125] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] <... futex resumed>) = 0 [pid 5121] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5125] <... futex resumed>) = 1 [pid 5124] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5125] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5121] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5060] unlink("./4/binderfs") = 0 [pid 5060] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3) = 0 [pid 5121] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] rmdir("./4" [pid 5058] <... umount2 resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] mkdir("./5", 0777 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... open resumed>) = 4 [pid 5057] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5126] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... open resumed>) = 4 [pid 5060] <... mkdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5056] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5126] <... futex resumed>) = 1 [pid 5125] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... futex resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... openat resumed>) = 4 [pid 5126] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] <... futex resumed>) = 1 [pid 5124] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] close(3 [pid 5057] getdents64(4, [pid 5126] sync( [pid 5060] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(4, "", [pid 5125] sync( [pid 5124] <... futex resumed>) = 0 [pid 5121] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5124] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5127 attached [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5127 [pid 5058] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5127] set_robust_list(0x555555d616a0, 24 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(4, [pid 5127] <... set_robust_list resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5127] chdir("./5" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] close(4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5127] <... chdir resumed>) = 0 [pid 5058] getdents64(4, [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5127] setpgid(0, 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5127] <... setpgid resumed>) = 0 [pid 5058] getdents64(4, [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] close(4 [pid 5058] close(4 [pid 5056] <... close resumed>) = 0 [pid 5127] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5056] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5127] write(3, "1000", 4 [pid 5058] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5127] <... write resumed>) = 4 [pid 5127] close(3 [pid 5125] <... sync resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./4/binderfs") = 0 [pid 5057] getdents64(3, [pid 5127] <... close resumed>) = 0 [pid 5125] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5127] symlink("/dev/binderfs", "./binderfs" [pid 5125] <... futex resumed>) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] close(3 [pid 5125] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] exit_group(0 [pid 5058] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5057] <... close resumed>) = 0 [pid 5056] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5127] <... symlink resumed>) = 0 [pid 5126] <... sync resumed>) = 0 [pid 5125] <... futex resumed>) = ? [pid 5121] <... exit_group resumed>) = ? [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] rmdir("./4" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5126] <... futex resumed>) = 1 [pid 5125] +++ exited with 0 +++ [pid 5124] <... futex resumed>) = 0 [pid 5121] +++ exited with 0 +++ [pid 5058] unlink("./4/binderfs" [pid 5057] mkdir("./5", 0777 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5127] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] exit_group(0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5058] <... unlink resumed>) = 0 [pid 5056] unlink("./4/binderfs" [pid 5127] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5057] <... mkdir resumed>) = 0 [pid 5127] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5126] <... futex resumed>) = ? [pid 5124] <... exit_group resumed>) = ? [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... unlink resumed>) = 0 [pid 5058] close(3 [pid 5057] <... openat resumed>) = 3 [pid 5127] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5126] +++ exited with 0 +++ [pid 5124] +++ exited with 0 +++ [pid 5058] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] getdents64(3, [pid 5127] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] rmdir("./4" [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] close(3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] close(3 [pid 5055] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5127] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] mkdir("./5", 0777 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5127] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... mkdir resumed>) = 0 [pid 5056] rmdir("./4" [pid 5055] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5128 attached [pid 5127] <... mprotect resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5128 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5128] set_robust_list(0x555555d616a0, 24 [pid 5127] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5128] <... set_robust_list resumed>) = 0 [pid 5127] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] newfstatat(3, "", [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] newfstatat(3, "", [pid 5128] chdir("./5" [pid 5127] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5056] mkdir("./5", 0777 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5128] <... chdir resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] <... mkdir resumed>) = 0 [pid 5055] getdents64(3, ./strace-static-x86_64: Process 5129 attached [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] <... clone3 resumed> => {parent_tid=[5129]}, 88) = 5129 [pid 5059] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5129] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5127] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5129] <... rseq resumed>) = 0 [pid 5128] <... prctl resumed>) = 0 [pid 5127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] set_robust_list(0x7f923ecf19a0, 24 [pid 5128] setpgid(0, 0 [pid 5127] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] close(3 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5129] <... set_robust_list resumed>) = 0 [pid 5128] <... setpgid resumed>) = 0 [pid 5127] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5129] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] <... umount2 resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5129] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5127] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5129] memfd_create("syzkaller", 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5128] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5130 attached [pid 5129] <... memfd_create resumed>) = 3 [pid 5128] write(3, "1000", 4 [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5128] <... write resumed>) = 4 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5130 [pid 5056] close(3 [pid 5055] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5128] close(3 [pid 5130] set_robust_list(0x555555d616a0, 24 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] <... set_robust_list resumed>) = 0 [pid 5129] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] chdir("./5" [pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5128] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs" [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] <... chdir resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5131 attached [pid 5130] <... prctl resumed>) = 0 [pid 5059] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5131 [pid 5055] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5131] set_robust_list(0x555555d616a0, 24 [pid 5130] setpgid(0, 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5131] <... set_robust_list resumed>) = 0 [pid 5130] <... setpgid resumed>) = 0 [pid 5128] <... symlink resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... openat resumed>) = 4 [pid 5131] chdir("./5" [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 4 [pid 5131] <... chdir resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5128] <... futex resumed>) = 0 [pid 5131] setpgid(0, 0 [pid 5055] getdents64(4, [pid 5128] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5131] <... setpgid resumed>) = 0 [pid 5130] <... openat resumed>) = 3 [pid 5129] <... write resumed>) = 524288 [pid 5059] newfstatat(4, "", [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5130] write(3, "1000", 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5130] <... write resumed>) = 4 [pid 5129] munmap(0x7f92368d1000, 138412032 [pid 5059] getdents64(4, [pid 5055] close(4 [pid 5131] <... openat resumed>) = 3 [pid 5130] close(3 [pid 5129] <... munmap resumed>) = 0 [pid 5128] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... close resumed>) = 0 [pid 5131] write(3, "1000", 4 [pid 5130] <... close resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] getdents64(4, [pid 5055] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5131] <... write resumed>) = 4 [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5129] <... openat resumed>) = 4 [pid 5128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5131] close(3 [pid 5130] <... symlink resumed>) = 0 [pid 5129] ioctl(4, LOOP_SET_FD, 3 [pid 5128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] close(4 [pid 5055] <... rmdir resumed>) = 0 [pid 5131] <... close resumed>) = 0 [pid 5130] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] symlink("/dev/binderfs", "./binderfs" [pid 5128] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5131] <... symlink resumed>) = 0 [pid 5128] <... mprotect resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5131] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5131] <... futex resumed>) = 0 [pid 5055] unlink("./4/binderfs" [pid 5131] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5128] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5131] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] getdents64(3, [pid 5131] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... close resumed>) = 0 [pid 5055] close(3 [pid 5131] <... mmap resumed>) = 0x7f923ecd1000 [pid 5128] <... clone3 resumed> => {parent_tid=[5132]}, 88) = 5132 [pid 5055] <... close resumed>) = 0 [pid 5131] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5128] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] rmdir("./4"./strace-static-x86_64: Process 5132 attached [pid 5131] <... mprotect resumed>) = 0 [pid 5130] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5129] <... ioctl resumed>) = 0 [pid 5128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... rmdir resumed>) = 0 [pid 5132] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5130] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5129] close(3 [pid 5131] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5128] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... rmdir resumed>) = 0 [pid 5130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] mkdir("./5", 0777 [pid 5129] <... close resumed>) = 0 [pid 5132] <... rseq resumed>) = 0 [pid 5131] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5129] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5128] <... futex resumed>) = 0 [pid 5059] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] set_robust_list(0x7f923ecf19a0, 24 [pid 5131] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5128] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5133 attached [pid 5132] <... set_robust_list resumed>) = 0 [pid 5130] <... mmap resumed>) = 0x7f923ecd1000 [pid 5129] <... mkdir resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5133] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5132] rt_sigprocmask(SIG_SETMASK, [], [pid 5131] <... clone3 resumed> => {parent_tid=[5133]}, 88) = 5133 [pid 5130] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5129] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5133] <... rseq resumed>) = 0 [pid 5132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5131] rt_sigprocmask(SIG_SETMASK, [], [pid 5130] <... mprotect resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5133] set_robust_list(0x7f923ecf19a0, 24 [pid 5132] memfd_create("syzkaller", 0 [pid 5131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5130] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] unlink("./4/binderfs" [pid 5133] <... set_robust_list resumed>) = 0 [pid 5132] <... memfd_create resumed>) = 3 [pid 5131] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5133] rt_sigprocmask(SIG_SETMASK, [], [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] <... futex resumed>) = 0 [pid 5130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... unlink resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5134 attached [pid 5133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5132] <... mmap resumed>) = 0x7f92368d1000 [pid 5131] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] getdents64(3, [pid 5134] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5133] memfd_create("syzkaller", 0 [pid 5130] <... clone3 resumed> => {parent_tid=[5134]}, 88) = 5134 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5134] <... rseq resumed>) = 0 [pid 5133] <... memfd_create resumed>) = 3 [pid 5130] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] close(3 [pid 5134] set_robust_list(0x7f923ecf19a0, 24 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5129] <... mount resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5134] <... set_robust_list resumed>) = 0 [pid 5133] <... mmap resumed>) = 0x7f92368d1000 [pid 5130] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] rmdir("./4" [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5134] rt_sigprocmask(SIG_SETMASK, [], [pid 5130] <... futex resumed>) = 0 [pid 5129] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... rmdir resumed>) = 0 [pid 5134] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5130] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5134] memfd_create("syzkaller", 0 [pid 5059] mkdir("./5", 0777 [pid 5134] <... memfd_create resumed>) = 3 [pid 5059] <... mkdir resumed>) = 0 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5134] <... mmap resumed>) = 0x7f92368d1000 [pid 5129] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5135 ./strace-static-x86_64: Process 5135 attached [pid 5129] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5135] set_robust_list(0x555555d616a0, 24 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5129] <... chdir resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5135] <... set_robust_list resumed>) = 0 [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5129] ioctl(4, LOOP_CLR_FD [pid 5059] close(3) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5135] chdir("./5") = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0 [pid 5129] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5136 attached [pid 5129] close(4 [pid 5136] set_robust_list(0x555555d616a0, 24 [pid 5129] <... close resumed>) = 0 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5129] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] chdir("./5" [pid 5135] <... setpgid resumed>) = 0 [pid 5129] <... futex resumed>) = 1 [pid 5136] <... chdir resumed>) = 0 [pid 5129] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5136 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5132] <... write resumed>) = 524288 [pid 5127] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] <... prctl resumed>) = 0 [pid 5135] <... openat resumed>) = 3 [pid 5134] <... write resumed>) = 524288 [pid 5133] <... write resumed>) = 524288 [pid 5132] munmap(0x7f92368d1000, 138412032 [pid 5129] <... futex resumed>) = 0 [pid 5127] <... futex resumed>) = 1 [pid 5136] setpgid(0, 0 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5129] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5136] <... setpgid resumed>) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs" [pid 5133] munmap(0x7f92368d1000, 138412032 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5135] <... symlink resumed>) = 0 [pid 5132] <... munmap resumed>) = 0 [ 58.638870][ T5129] loop5: detected capacity change from 0 to 1024 [pid 5127] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... munmap resumed>) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5135] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5129] <... mknod resumed>) = 0 [pid 5136] write(3, "1000", 4 [pid 5132] <... openat resumed>) = 4 [pid 5133] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5136] <... write resumed>) = 4 [pid 5135] <... futex resumed>) = 0 [pid 5132] ioctl(4, LOOP_SET_FD, 3 [pid 5129] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] close(3 [pid 5135] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5134] munmap(0x7f92368d1000, 138412032 [pid 5133] <... openat resumed>) = 4 [pid 5132] <... ioctl resumed>) = 0 [pid 5129] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5136] <... close resumed>) = 0 [pid 5134] <... munmap resumed>) = 0 [pid 5136] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5127] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5133] ioctl(4, LOOP_SET_FD, 3 [pid 5136] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5127] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... futex resumed>) = 0 [pid 5134] <... openat resumed>) = 4 [pid 5129] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5136] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5134] ioctl(4, LOOP_SET_FD, 3 [pid 5136] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5133] <... ioctl resumed>) = 0 [pid 5136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5129] <... open resumed>) = 4 [pid 5135] <... mmap resumed>) = 0x7f923ecd1000 [pid 5135] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5132] close(3 [pid 5135] <... mprotect resumed>) = 0 [pid 5136] <... mmap resumed>) = 0x7f923ecd1000 [pid 5132] <... close resumed>) = 0 [pid 5136] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5132] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5135] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5132] <... mkdir resumed>) = 0 [pid 5135] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5136] <... mprotect resumed>) = 0 [pid 5132] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5129] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5137 attached ) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5137] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5135] <... clone3 resumed> => {parent_tid=[5137]}, 88) = 5137 [pid 5129] sync( [pid 5127] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... rseq resumed>) = 0 [pid 5135] rt_sigprocmask(SIG_SETMASK, [], [pid 5133] close(3 [pid 5127] <... futex resumed>) = 0 [pid 5137] set_robust_list(0x7f923ecf19a0, 24 [pid 5136] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5133] <... close resumed>) = 0 [pid 5132] <... mount resumed>) = 0 [pid 5127] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5137] <... set_robust_list resumed>) = 0 [pid 5136] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5135] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5132] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5137] rt_sigprocmask(SIG_SETMASK, [], [pid 5136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5135] <... futex resumed>) = 0 [pid 5132] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5138 attached [pid 5132] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5136] <... clone3 resumed> => {parent_tid=[5138]}, 88) = 5138 [pid 5133] <... mkdir resumed>) = 0 [pid 5132] <... chdir resumed>) = 0 [pid 5136] rt_sigprocmask(SIG_SETMASK, [], [pid 5132] ioctl(4, LOOP_CLR_FD [pid 5136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5132] <... ioctl resumed>) = 0 [pid 5136] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] close(4 [pid 5136] <... futex resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5136] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5132] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5135] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5132] <... futex resumed>) = 1 [ 58.703619][ T5132] loop2: detected capacity change from 0 to 1024 [ 58.714462][ T5133] loop1: detected capacity change from 0 to 1024 [ 58.716671][ T5134] loop3: detected capacity change from 0 to 1024 [pid 5138] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5137] memfd_create("syzkaller", 0 [pid 5132] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] <... futex resumed>) = 0 [pid 5138] <... rseq resumed>) = 0 [pid 5137] <... memfd_create resumed>) = 3 [pid 5128] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] set_robust_list(0x7f923ecf19a0, 24 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5133] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5132] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = 1 [pid 5138] <... set_robust_list resumed>) = 0 [pid 5137] <... mmap resumed>) = 0x7f92368d1000 [pid 5134] <... ioctl resumed>) = 0 [pid 5138] rt_sigprocmask(SIG_SETMASK, [], [pid 5132] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5138] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5138] memfd_create("syzkaller", 0) = 3 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5134] close(3 [pid 5132] <... mknod resumed>) = 0 [pid 5138] <... mmap resumed>) = 0x7f92368d1000 [pid 5134] <... close resumed>) = 0 [pid 5132] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5134] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5132] <... futex resumed>) = 0 [pid 5128] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... mkdir resumed>) = 0 [pid 5132] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5134] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5128] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = 1 [pid 5132] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5128] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... mount resumed>) = 0 [pid 5132] <... open resumed>) = 4 [pid 5134] <... mount resumed>) = 0 [pid 5133] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5132] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] <... futex resumed>) = 0 [pid 5134] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5133] <... openat resumed>) = 3 [pid 5132] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... openat resumed>) = 3 [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] <... futex resumed>) = 0 [pid 5137] <... write resumed>) = 524288 [pid 5128] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5133] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5132] sync( [pid 5129] <... sync resumed>) = 0 [pid 5137] munmap(0x7f92368d1000, 138412032 [pid 5134] <... chdir resumed>) = 0 [pid 5133] <... chdir resumed>) = 0 [pid 5129] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5133] ioctl(4, LOOP_CLR_FD [pid 5129] <... futex resumed>) = 0 [pid 5127] exit_group(0 [pid 5137] <... munmap resumed>) = 0 [pid 5134] ioctl(4, LOOP_CLR_FD [pid 5133] <... ioctl resumed>) = 0 [pid 5127] <... exit_group resumed>) = ? [pid 5137] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5134] <... ioctl resumed>) = 0 [pid 5133] close(4 [pid 5138] <... write resumed>) = 524288 [pid 5137] <... openat resumed>) = 4 [pid 5134] close(4 [pid 5133] <... close resumed>) = 0 [pid 5129] +++ exited with 0 +++ [pid 5127] +++ exited with 0 +++ [pid 5138] munmap(0x7f92368d1000, 138412032 [pid 5134] <... close resumed>) = 0 [pid 5137] ioctl(4, LOOP_SET_FD, 3 [pid 5134] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5138] <... munmap resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5134] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] <... futex resumed>) = 0 [pid 5138] <... openat resumed>) = 4 [pid 5134] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5130] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] ioctl(4, LOOP_SET_FD, 3 [pid 5133] <... futex resumed>) = 1 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5133] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... restart_syscall resumed>) = 0 [pid 5134] <... mknod resumed>) = 0 [pid 5134] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5134] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5130] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5130] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5137] <... ioctl resumed>) = 0 [pid 5133] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5131] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5060] newfstatat(3, "", [pid 5133] <... mknod resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5137] close(3 [pid 5133] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5137] <... close resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5137] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5133] <... futex resumed>) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5137] <... mkdir resumed>) = 0 [pid 5137] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5131] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... open resumed>) = 4 [pid 5132] <... sync resumed>) = 0 [pid 5134] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... futex resumed>) = 1 [pid 5132] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = 0 [pid 5134] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] exit_group(0 [pid 5134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] <... futex resumed>) = 0 [pid 5128] <... exit_group resumed>) = ? [pid 5060] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5130] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... ioctl resumed>) = 0 [pid 5134] sync( [pid 5132] <... futex resumed>) = ? [pid 5138] close(3 [pid 5137] <... mount resumed>) = 0 [pid 5133] <... open resumed>) = 4 [pid 5132] +++ exited with 0 +++ [pid 5128] +++ exited with 0 +++ [pid 5138] <... close resumed>) = 0 [pid 5137] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5138] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5137] <... openat resumed>) = 3 [pid 5138] <... mkdir resumed>) = 0 [pid 5137] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5138] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5137] <... chdir resumed>) = 0 [pid 5137] ioctl(4, LOOP_CLR_FD) = 0 [pid 5137] close(4 [pid 5057] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5137] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5137] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5137] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5135] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5137] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [ 58.806382][ T5137] loop0: detected capacity change from 0 to 1024 [ 58.810592][ T5138] loop4: detected capacity change from 0 to 1024 [pid 5135] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5137] <... mknod resumed>) = 0 [pid 5133] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5057] getdents64(3, [pid 5137] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5131] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5133] sync( [pid 5137] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5135] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5057] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5135] <... futex resumed>) = 0 [pid 5131] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5138] <... mount resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5138] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5138] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5138] ioctl(4, LOOP_CLR_FD) = 0 [pid 5138] close(4) = 0 [pid 5138] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5138] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5137] <... open resumed>) = 4 [pid 5136] <... futex resumed>) = 0 [pid 5138] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5136] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... mknod resumed>) = 0 [pid 5137] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] newfstatat(4, "", [pid 5138] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5138] <... futex resumed>) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5135] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5138] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5137] sync( [pid 5136] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5138] <... open resumed>) = 4 [pid 5136] <... futex resumed>) = 0 [pid 5135] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, [pid 5138] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5136] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5138] sync( [pid 5136] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] close(4) = 0 [pid 5060] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5138] <... sync resumed>) = 0 [pid 5137] <... sync resumed>) = 0 [pid 5133] <... sync resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5138] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] <... sync resumed>) = 0 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5135] <... futex resumed>) = 0 [pid 5133] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] exit_group(0 [pid 5135] exit_group(0 [pid 5133] <... futex resumed>) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5060] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5138] <... futex resumed>) = ? [pid 5137] <... futex resumed>) = ? [pid 5136] <... exit_group resumed>) = ? [pid 5135] <... exit_group resumed>) = ? [pid 5134] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] exit_group(0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5138] +++ exited with 0 +++ [pid 5137] +++ exited with 0 +++ [pid 5136] +++ exited with 0 +++ [pid 5135] +++ exited with 0 +++ [pid 5134] <... futex resumed>) = 0 [pid 5133] <... futex resumed>) = ? [pid 5131] <... exit_group resumed>) = ? [pid 5130] exit_group(0 [pid 5060] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5057] <... umount2 resumed>) = 0 [pid 5133] +++ exited with 0 +++ [pid 5131] +++ exited with 0 +++ [pid 5130] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5134] +++ exited with 0 +++ [pid 5130] +++ exited with 0 +++ [pid 5060] unlink("./5/binderfs" [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5057] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... unlink resumed>) = 0 [pid 5059] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5060] getdents64(3, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(3 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... close resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5060] rmdir("./5" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(3, "", [pid 5057] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] mkdir("./6", 0777 [pid 5057] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(3, [pid 5055] getdents64(3, [pid 5058] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... mkdir resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5057] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] getdents64(4, [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5060] close(3) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] close(4) = 0 ./strace-static-x86_64: Process 5139 attached [pid 5059] <... umount2 resumed>) = 0 [pid 5139] set_robust_list(0x555555d616a0, 24) = 0 [pid 5139] chdir("./6") = 0 [pid 5059] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5139 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... umount2 resumed>) = 0 [pid 5139] <... prctl resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5139] setpgid(0, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] <... setpgid resumed>) = 0 [pid 5059] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5139] <... openat resumed>) = 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5139] write(3, "1000", 4 [pid 5059] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5139] <... write resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5139] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5139] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5058] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] <... symlink resumed>) = 0 [pid 5059] getdents64(4, [pid 5058] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] unlink("./5/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... unlink resumed>) = 0 [pid 5056] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] getdents64(3, [pid 5139] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] close(4 [pid 5058] newfstatat(4, "", [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] close(3 [pid 5139] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] rmdir("./5" [pid 5139] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] mkdir("./6", 0777 [pid 5056] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] getdents64(4, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5139] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5058] close(4 [pid 5056] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(4, "", [pid 5139] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5139] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] unlink("./5/binderfs" [pid 5058] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... openat resumed>) = 4 [pid 5055] getdents64(4, [pid 5139] <... mprotect resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5139] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] getdents64(3, [pid 5058] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(4, "", [pid 5055] getdents64(4, [pid 5139] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] close(3 [pid 5058] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] close(4 [pid 5059] <... close resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] <... close resumed>) = 0 [pid 5139] <... clone3 resumed> => {parent_tid=[5140]}, 88) = 5140 [pid 5058] unlink("./5/binderfs" [pid 5057] <... openat resumed>) = 3 [pid 5055] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5139] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] rmdir("./5" [pid 5058] <... unlink resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5055] <... rmdir resumed>) = 0 [pid 5139] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] getdents64(3, [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5139] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] mkdir("./6", 0777 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] close(3 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] <... futex resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] close(3 [pid 5057] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5139] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] rmdir("./5" [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] close(4 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5140 attached [pid 5059] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5140] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] mkdir("./6", 0777 [pid 5056] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5140] <... rseq resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5140] set_robust_list(0x7f923ecf19a0, 24 [pid 5059] close(3 [pid 5058] <... mkdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5055] unlink("./5/binderfs" [pid 5140] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... close resumed>) = 0 [pid 5056] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5141 attached [pid 5140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5141 [pid 5055] getdents64(3, [pid 5141] set_robust_list(0x555555d616a0, 24 [pid 5140] memfd_create("syzkaller", 0 [pid 5058] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5142 attached [pid 5141] <... set_robust_list resumed>) = 0 [pid 5140] <... memfd_create resumed>) = 3 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5055] close(3 [pid 5142] set_robust_list(0x555555d616a0, 24 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5142 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5055] <... close resumed>) = 0 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] chdir("./6" [pid 5140] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] close(3 [pid 5055] rmdir("./5" [pid 5142] chdir("./6" [pid 5141] <... chdir resumed>) = 0 [pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5142] <... chdir resumed>) = 0 [pid 5141] <... prctl resumed>) = 0 [pid 5056] unlink("./5/binderfs" [pid 5141] setpgid(0, 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] mkdir("./6", 0777 [pid 5142] <... prctl resumed>) = 0 [pid 5141] <... setpgid resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5142] setpgid(0, 0) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5143 attached [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... openat resumed>) = 3 [pid 5143] set_robust_list(0x555555d616a0, 24) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5143] chdir("./6" [pid 5142] <... openat resumed>) = 3 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] getdents64(3, [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5143 [pid 5141] <... openat resumed>) = 3 [pid 5140] <... write resumed>) = 524288 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5143] <... chdir resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5142] write(3, "1000", 4 [pid 5055] close(3 [pid 5142] <... write resumed>) = 4 [pid 5055] <... close resumed>) = 0 [pid 5143] <... prctl resumed>) = 0 [pid 5142] close(3 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5142] <... close resumed>) = 0 [pid 5056] close(3 [pid 5143] setpgid(0, 0 [pid 5142] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... close resumed>) = 0 [pid 5143] <... setpgid resumed>) = 0 [pid 5142] <... symlink resumed>) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5144 attached ) = 3 [pid 5142] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5144] set_robust_list(0x555555d616a0, 24 [pid 5143] write(3, "1000", 4 [pid 5142] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5144 [pid 5144] <... set_robust_list resumed>) = 0 [pid 5143] <... write resumed>) = 4 [pid 5142] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5144] chdir("./6" [pid 5143] close(3 [pid 5142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5141] write(3, "1000", 4 [pid 5056] rmdir("./5" [pid 5144] <... chdir resumed>) = 0 [pid 5143] <... close resumed>) = 0 [pid 5142] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] symlink("/dev/binderfs", "./binderfs" [pid 5142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5144] <... prctl resumed>) = 0 [pid 5143] <... symlink resumed>) = 0 [pid 5142] <... mmap resumed>) = 0x7f923ecd1000 [pid 5141] <... write resumed>) = 4 [pid 5056] <... rmdir resumed>) = 0 [pid 5144] setpgid(0, 0 [pid 5143] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5141] close(3 [pid 5144] <... setpgid resumed>) = 0 [pid 5143] <... futex resumed>) = 0 [pid 5142] <... mprotect resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5056] mkdir("./6", 0777 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5142] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5141] symlink("/dev/binderfs", "./binderfs" [pid 5140] munmap(0x7f92368d1000, 138412032 [pid 5144] <... openat resumed>) = 3 [pid 5143] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5142] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5141] <... symlink resumed>) = 0 [pid 5140] <... munmap resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5144] write(3, "1000", 4 [pid 5143] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5141] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5145 attached [pid 5144] <... write resumed>) = 4 [pid 5143] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5140] <... openat resumed>) = 4 [pid 5145] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5144] close(3 [pid 5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5142] <... clone3 resumed> => {parent_tid=[5145]}, 88) = 5145 [pid 5140] ioctl(4, LOOP_SET_FD, 3 [pid 5145] <... rseq resumed>) = 0 [pid 5144] <... close resumed>) = 0 [pid 5143] <... mmap resumed>) = 0x7f923ecd1000 [pid 5142] rt_sigprocmask(SIG_SETMASK, [], [pid 5145] set_robust_list(0x7f923ecf19a0, 24 [pid 5144] symlink("/dev/binderfs", "./binderfs" [pid 5143] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5142] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5141] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5145] <... set_robust_list resumed>) = 0 [pid 5144] <... symlink resumed>) = 0 [pid 5143] <... mprotect resumed>) = 0 [pid 5142] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] rt_sigprocmask(SIG_SETMASK, [], [pid 5144] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5142] <... futex resumed>) = 0 [pid 5141] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5056] <... openat resumed>) = 3 [pid 5145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5144] <... futex resumed>) = 0 [pid 5143] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5142] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5141] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5143] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] close(3 [pid 5145] memfd_create("syzkaller", 0 [pid 5144] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5143] <... clone3 resumed> => {parent_tid=[5146]}, 88) = 5146 [pid 5056] <... close resumed>) = 0 [pid 5144] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5143] rt_sigprocmask(SIG_SETMASK, [], [pid 5144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5143] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5143] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] <... memfd_create resumed>) = 3 [pid 5144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5143] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5145] <... mmap resumed>) = 0x7f92368d1000 [pid 5144] <... mmap resumed>) = 0x7f923ecd1000 [pid 5144] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 5146 attached [pid 5144] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5146] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5148 attached [pid 5146] <... rseq resumed>) = 0 [pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5148] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5148] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5144] <... clone3 resumed> => {parent_tid=[5148]}, 88) = 5148 [pid 5140] <... ioctl resumed>) = 0 [pid 5148] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] rt_sigprocmask(SIG_SETMASK, [], [pid 5140] close(3 [pid 5144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5144] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... futex resumed>) = 0 [pid 5144] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5147 attached [pid 5148] memfd_create("syzkaller", 0 [pid 5146] set_robust_list(0x7f923ecf19a0, 24 [pid 5141] <... mmap resumed>) = 0x7f923ecd1000 [pid 5148] <... memfd_create resumed>) = 3 [pid 5144] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5140] <... close resumed>) = 0 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5147] set_robust_list(0x555555d616a0, 24 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5141] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5140] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5147 [pid 5148] <... mmap resumed>) = 0x7f92368d1000 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] rt_sigprocmask(SIG_SETMASK, [], [pid 5141] <... mprotect resumed>) = 0 [pid 5140] <... mkdir resumed>) = 0 [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5146] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5141] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5140] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5147] chdir("./6" [pid 5146] memfd_create("syzkaller", 0 [pid 5141] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5146] <... memfd_create resumed>) = 3 [pid 5147] <... chdir resumed>) = 0 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] <... mmap resumed>) = 0x7f92368d1000 [pid 5141] <... clone3 resumed> => {parent_tid=[5149]}, 88) = 5149 ./strace-static-x86_64: Process 5149 attached [pid 5147] <... prctl resumed>) = 0 [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5141] rt_sigprocmask(SIG_SETMASK, [], [pid 5149] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5147] setpgid(0, 0 [pid 5141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5149] <... rseq resumed>) = 0 [pid 5147] <... setpgid resumed>) = 0 [pid 5141] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... futex resumed>) = 0 [pid 5149] rt_sigprocmask(SIG_SETMASK, [], [pid 5145] <... write resumed>) = 524288 [pid 5149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5147] <... openat resumed>) = 3 [pid 5141] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5149] memfd_create("syzkaller", 0 [pid 5147] write(3, "1000", 4 [pid 5145] munmap(0x7f92368d1000, 138412032 [pid 5149] <... memfd_create resumed>) = 3 [pid 5148] <... write resumed>) = 524288 [pid 5147] <... write resumed>) = 4 [pid 5145] <... munmap resumed>) = 0 [pid 5140] <... mount resumed>) = 0 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5147] close(3 [pid 5149] <... mmap resumed>) = 0x7f92368d1000 [pid 5147] <... close resumed>) = 0 [pid 5140] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5148] munmap(0x7f92368d1000, 138412032 [pid 5145] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5140] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5148] <... munmap resumed>) = 0 [pid 5145] <... openat resumed>) = 4 [pid 5140] <... chdir resumed>) = 0 [ 59.094893][ T5140] loop5: detected capacity change from 0 to 1024 [pid 5147] symlink("/dev/binderfs", "./binderfs" [pid 5145] ioctl(4, LOOP_SET_FD, 3 [pid 5140] ioctl(4, LOOP_CLR_FD [pid 5147] <... symlink resumed>) = 0 [pid 5146] <... write resumed>) = 524288 [pid 5140] <... ioctl resumed>) = 0 [pid 5147] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... write resumed>) = 524288 [pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5147] <... futex resumed>) = 0 [pid 5146] munmap(0x7f92368d1000, 138412032 [pid 5147] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5140] close(4 [pid 5146] <... munmap resumed>) = 0 [pid 5148] <... openat resumed>) = 4 [pid 5140] <... close resumed>) = 0 [pid 5148] ioctl(4, LOOP_SET_FD, 3 [pid 5140] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5140] <... futex resumed>) = 1 [pid 5140] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5139] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5139] <... futex resumed>) = 0 [pid 5149] munmap(0x7f92368d1000, 138412032 [pid 5139] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5149] <... munmap resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5145] <... ioctl resumed>) = 0 [pid 5149] <... openat resumed>) = 4 [pid 5145] close(3 [pid 5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5146] <... openat resumed>) = 4 [pid 5145] <... close resumed>) = 0 [pid 5145] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5147] <... mmap resumed>) = 0x7f923ecd1000 [pid 5145] <... mkdir resumed>) = 0 [pid 5149] ioctl(4, LOOP_SET_FD, 3 [pid 5147] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5146] ioctl(4, LOOP_SET_FD, 3 [pid 5140] <... mknod resumed>) = 0 [pid 5147] <... mprotect resumed>) = 0 [pid 5145] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5148] <... ioctl resumed>) = 0 [pid 5140] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5148] close(3 [pid 5147] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5140] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5139] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... close resumed>) = 0 [pid 5147] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5139] <... futex resumed>) = 0 [pid 5148] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5139] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5148] <... mkdir resumed>) = 0 [pid 5148] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, ""./strace-static-x86_64: Process 5150 attached [pid 5140] <... open resumed>) = 4 [pid 5150] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5147] <... clone3 resumed> => {parent_tid=[5150]}, 88) = 5150 [pid 5140] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] rt_sigprocmask(SIG_SETMASK, [], [pid 5140] <... futex resumed>) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5139] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... rseq resumed>) = 0 [pid 5147] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] sync( [pid 5139] <... futex resumed>) = 0 [pid 5150] set_robust_list(0x7f923ecf19a0, 24 [pid 5148] <... mount resumed>) = 0 [pid 5147] <... futex resumed>) = 0 [pid 5146] <... ioctl resumed>) = 0 [pid 5139] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... set_robust_list resumed>) = 0 [pid 5148] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5147] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5146] close(3 [pid 5150] rt_sigprocmask(SIG_SETMASK, [], [pid 5148] <... openat resumed>) = 3 [pid 5146] <... close resumed>) = 0 [pid 5150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5146] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5150] memfd_create("syzkaller", 0 [pid 5149] <... ioctl resumed>) = 0 [pid 5148] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5146] <... mkdir resumed>) = 0 [pid 5150] <... memfd_create resumed>) = 3 [pid 5149] close(3 [pid 5148] <... chdir resumed>) = 0 [ 59.160272][ T5145] loop4: detected capacity change from 0 to 1024 [ 59.175170][ T5148] loop0: detected capacity change from 0 to 1024 [ 59.192251][ T5149] loop2: detected capacity change from 0 to 1024 [ 59.199545][ T5146] loop3: detected capacity change from 0 to 1024 [pid 5146] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5149] <... close resumed>) = 0 [pid 5148] ioctl(4, LOOP_CLR_FD [pid 5150] <... mmap resumed>) = 0x7f92368d1000 [pid 5149] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5148] <... ioctl resumed>) = 0 [pid 5149] <... mkdir resumed>) = 0 [pid 5148] close(4 [pid 5149] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5148] <... close resumed>) = 0 [pid 5148] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5148] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] <... mount resumed>) = 0 [pid 5144] <... futex resumed>) = 0 [pid 5145] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5144] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... futex resumed>) = 0 [pid 5145] <... openat resumed>) = 3 [pid 5144] <... futex resumed>) = 1 [pid 5148] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5145] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5144] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] <... chdir resumed>) = 0 [pid 5145] ioctl(4, LOOP_CLR_FD [pid 5148] <... mknod resumed>) = 0 [pid 5145] <... ioctl resumed>) = 0 [pid 5145] close(4) = 0 [pid 5145] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5144] <... futex resumed>) = 0 [pid 5148] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5145] <... futex resumed>) = 1 [pid 5144] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... futex resumed>) = 0 [pid 5145] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] <... futex resumed>) = 0 [pid 5142] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5149] <... mount resumed>) = 0 [pid 5148] <... open resumed>) = 4 [pid 5146] <... mount resumed>) = 0 [pid 5145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... futex resumed>) = 0 [pid 5149] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5146] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5142] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5149] <... openat resumed>) = 3 [pid 5146] <... openat resumed>) = 3 [pid 5145] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5149] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5146] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5149] <... chdir resumed>) = 0 [pid 5148] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... chdir resumed>) = 0 [pid 5149] ioctl(4, LOOP_CLR_FD [pid 5148] <... futex resumed>) = 1 [pid 5146] ioctl(4, LOOP_CLR_FD [pid 5144] <... futex resumed>) = 0 [pid 5149] <... ioctl resumed>) = 0 [pid 5148] sync( [pid 5146] <... ioctl resumed>) = 0 [pid 5145] <... mknod resumed>) = 0 [pid 5144] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] close(4 [pid 5146] close(4 [pid 5145] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] <... futex resumed>) = 0 [pid 5149] <... close resumed>) = 0 [pid 5145] <... futex resumed>) = 1 [pid 5144] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... futex resumed>) = 0 [pid 5140] <... sync resumed>) = 0 [pid 5149] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... futex resumed>) = 1 [pid 5146] <... close resumed>) = 0 [pid 5145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5142] <... futex resumed>) = 0 [pid 5141] <... futex resumed>) = 0 [pid 5140] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5150] <... write resumed>) = 524288 [pid 5149] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5142] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = 0 [pid 5139] exit_group(0 [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5139] <... exit_group resumed>) = ? [pid 5150] munmap(0x7f92368d1000, 138412032 [pid 5149] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5146] <... futex resumed>) = 1 [pid 5145] <... open resumed>) = 4 [pid 5143] <... futex resumed>) = 0 [pid 5141] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] +++ exited with 0 +++ [pid 5139] +++ exited with 0 +++ [pid 5146] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5145] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... futex resumed>) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = 0 [pid 5145] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] <... sync resumed>) = 0 [pid 5145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5142] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5150] <... munmap resumed>) = 0 [pid 5148] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] sync( [pid 5142] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5150] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5149] <... mknod resumed>) = 0 [pid 5148] <... futex resumed>) = 1 [pid 5144] <... futex resumed>) = 0 [pid 5149] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... openat resumed>) = 4 [pid 5148] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] exit_group(0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5150] ioctl(4, LOOP_SET_FD, 3 [pid 5149] <... futex resumed>) = 1 [pid 5148] <... futex resumed>) = ? [pid 5144] <... exit_group resumed>) = ? [pid 5141] <... futex resumed>) = 0 [pid 5149] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] +++ exited with 0 +++ [pid 5144] +++ exited with 0 +++ [pid 5141] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5149] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5141] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5055] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5149] <... open resumed>) = 4 [pid 5055] <... openat resumed>) = 3 [pid 5060] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(3, [pid 5149] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5149] <... futex resumed>) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5055] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5149] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] <... mknod resumed>) = 0 [pid 5146] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5149] sync( [pid 5141] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... futex resumed>) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5143] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5146] <... open resumed>) = 4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5150] <... ioctl resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5150] close(3 [pid 5146] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5150] <... close resumed>) = 0 [pid 5146] <... futex resumed>) = 1 [pid 5055] close(4 [pid 5146] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5150] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5143] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] <... close resumed>) = 0 [pid 5143] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5150] <... mkdir resumed>) = 0 [pid 5146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5143] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5146] sync( [pid 5143] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5150] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./6/binderfs") = 0 [pid 5055] getdents64(3, [pid 5060] <... umount2 resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5150] <... mount resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5150] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] rmdir("./6" [pid 5150] <... openat resumed>) = 3 [ 59.309355][ T5150] loop1: detected capacity change from 0 to 1024 [pid 5060] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [pid 5150] <... chdir resumed>) = 0 [pid 5149] <... sync resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] mkdir("./7", 0777 [pid 5150] ioctl(4, LOOP_CLR_FD [pid 5149] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... sync resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5150] <... ioctl resumed>) = 0 [pid 5149] <... futex resumed>) = 1 [pid 5146] <... sync resumed>) = 0 [pid 5145] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5060] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] close(4 [pid 5149] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] exit_group(0 [pid 5141] exit_group(0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5150] <... close resumed>) = 0 [pid 5146] <... futex resumed>) = 1 [pid 5145] <... futex resumed>) = ? [pid 5143] <... futex resumed>) = 0 [pid 5142] <... exit_group resumed>) = ? [pid 5141] <... exit_group resumed>) = ? [pid 5060] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5150] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... futex resumed>) = ? [pid 5146] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] exit_group(0 [pid 5060] <... openat resumed>) = 4 [pid 5055] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5055] close(3) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5150] <... futex resumed>) = 1 [pid 5149] +++ exited with 0 +++ [pid 5147] <... futex resumed>) = 0 [pid 5146] <... futex resumed>) = ? [pid 5143] <... exit_group resumed>) = ? [pid 5141] +++ exited with 0 +++ [pid 5060] newfstatat(4, "", [pid 5150] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5147] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] +++ exited with 0 +++ [pid 5145] +++ exited with 0 +++ [pid 5143] +++ exited with 0 +++ [pid 5142] +++ exited with 0 +++ [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5147] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5151 attached [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5151] set_robust_list(0x555555d616a0, 24 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5147] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5060] getdents64(4, [pid 5151] <... set_robust_list resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] chdir("./7" [pid 5060] getdents64(4, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... chdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5151 [pid 5151] <... prctl resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5057] <... openat resumed>) = 3 [pid 5151] setpgid(0, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5151] <... setpgid resumed>) = 0 [pid 5059] getdents64(3, [pid 5057] newfstatat(3, "", [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5151] <... openat resumed>) = 3 [pid 5059] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5151] write(3, "1000", 4 [pid 5057] getdents64(3, [pid 5151] <... write resumed>) = 4 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5151] close(3 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... close resumed>) = 0 [pid 5057] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5060] close(4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5060] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] newfstatat(3, "", [pid 5151] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... rmdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5151] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5151] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5150] <... mknod resumed>) = 0 [pid 5058] getdents64(3, [pid 5151] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5151] <... mprotect resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5150] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5150] <... futex resumed>) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = 0 [pid 5058] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 4 [pid 5147] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5151] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5147] <... futex resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5147] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5151] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5151] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5057] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5152 attached [pid 5151] <... clone3 resumed> => {parent_tid=[5152]}, 88) = 5152 [pid 5057] getdents64(4, [pid 5152] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5151] rt_sigprocmask(SIG_SETMASK, [], [pid 5152] <... rseq resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5152] set_robust_list(0x7f923ecf19a0, 24 [pid 5151] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] close(4 [pid 5152] <... set_robust_list resumed>) = 0 [pid 5151] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5152] rt_sigprocmask(SIG_SETMASK, [], [pid 5151] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5152] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5151] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5152] memfd_create("syzkaller", 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... rmdir resumed>) = 0 [pid 5152] <... memfd_create resumed>) = 3 [pid 5059] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5060] unlink("./6/binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5152] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] unlink("./6/binderfs" [pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] newfstatat(4, "", [pid 5057] <... unlink resumed>) = 0 [pid 5150] <... open resumed>) = 4 [pid 5060] getdents64(3, [pid 5058] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] getdents64(3, [pid 5060] rmdir("./6" [pid 5059] getdents64(4, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] close(3 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5058] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] getdents64(4, [pid 5057] rmdir("./6" [pid 5058] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... rmdir resumed>) = 0 [pid 5059] close(4 [pid 5058] newfstatat(4, "", [pid 5059] <... close resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] mkdir("./7", 0777 [pid 5150] <... futex resumed>) = 1 [pid 5152] <... write resumed>) = 524288 [pid 5147] <... futex resumed>) = 0 [pid 5060] mkdir("./7", 0777 [pid 5059] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5147] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] getdents64(4, [pid 5060] <... mkdir resumed>) = 0 [pid 5150] sync( [pid 5147] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... mkdir resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./6/binderfs" [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] <... unlink resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] <... openat resumed>) = 3 [pid 5059] getdents64(3, [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] close(3 [pid 5059] close(3 [pid 5058] close(4 [pid 5152] munmap(0x7f92368d1000, 138412032 [pid 5060] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5152] <... munmap resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] <... openat resumed>) = 4 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] <... rmdir resumed>) = 0 [pid 5058] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5152] ioctl(4, LOOP_SET_FD, 3 [pid 5059] rmdir("./6" [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] close(3 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] unlink("./6/binderfs" [pid 5059] mkdir("./7", 0777 [pid 5060] <... close resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5153 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5058] <... unlink resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5154 ./strace-static-x86_64: Process 5153 attached [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3./strace-static-x86_64: Process 5154 attached [pid 5153] set_robust_list(0x555555d616a0, 24 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... close resumed>) = 0 [pid 5154] set_robust_list(0x555555d616a0, 24) = 0 [pid 5153] <... set_robust_list resumed>) = 0 [pid 5059] close(3 [pid 5058] rmdir("./6" [pid 5154] chdir("./7" [pid 5153] chdir("./7" [pid 5059] <... close resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5153] <... chdir resumed>) = 0 [pid 5154] <... chdir resumed>) = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] <... ioctl resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] mkdir("./7", 0777 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] <... sync resumed>) = 0 ./strace-static-x86_64: Process 5155 attached [pid 5154] <... prctl resumed>) = 0 [pid 5153] setpgid(0, 0 [pid 5152] close(3 [pid 5150] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... mkdir resumed>) = 0 [pid 5155] set_robust_list(0x555555d616a0, 24 [pid 5154] setpgid(0, 0 [pid 5153] <... setpgid resumed>) = 0 [pid 5150] <... futex resumed>) = 1 [pid 5147] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5155 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5155] <... set_robust_list resumed>) = 0 [pid 5154] <... setpgid resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] <... close resumed>) = 0 [pid 5150] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5147] exit_group(0 [pid 5155] chdir("./7" [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] <... openat resumed>) = 3 [pid 5150] <... futex resumed>) = ? [pid 5147] <... exit_group resumed>) = ? [pid 5058] <... openat resumed>) = 3 [pid 5155] <... chdir resumed>) = 0 [pid 5154] <... openat resumed>) = 3 [pid 5153] write(3, "1000", 4 [pid 5152] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5150] +++ exited with 0 +++ [pid 5147] +++ exited with 0 +++ [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5154] write(3, "1000", 4 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5155] <... prctl resumed>) = 0 [pid 5154] <... write resumed>) = 4 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] <... restart_syscall resumed>) = 0 [pid 5056] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5152] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5154] close(3 [pid 5153] <... write resumed>) = 4 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... openat resumed>) = 3 [pid 5155] setpgid(0, 0 [pid 5154] <... close resumed>) = 0 [pid 5153] close(3 [pid 5058] close(3 [pid 5056] newfstatat(3, "", [pid 5155] <... setpgid resumed>) = 0 [pid 5154] symlink("/dev/binderfs", "./binderfs" [pid 5153] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] <... symlink resumed>) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs" [pid 5152] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] getdents64(3, [pid 5155] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5154] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5155] write(3, "1000", 4 [pid 5154] <... futex resumed>) = 0 [pid 5153] <... symlink resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5155] <... write resumed>) = 4 [pid 5154] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5155] close(3) = 0 [pid 5154] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs" [pid 5154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5155] <... symlink resumed>) = 0 [pid 5154] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5156 attached [pid 5154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5156] set_robust_list(0x555555d616a0, 24 [pid 5154] <... mmap resumed>) = 0x7f923ecd1000 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5154] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5156] chdir("./7" [pid 5154] <... mprotect resumed>) = 0 [pid 5153] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] <... chdir resumed>) = 0 [pid 5155] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... futex resumed>) = 0 [pid 5152] <... mount resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5156 [pid 5153] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5155] <... futex resumed>) = 0 [pid 5154] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5156] <... prctl resumed>) = 0 [pid 5155] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5154] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5153] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5152] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5152] <... openat resumed>) = 3 [pid 5156] setpgid(0, 0 [pid 5155] <... rt_sigaction resumed>NULL, 8) = 0 [ 59.489650][ T5152] loop0: detected capacity change from 0 to 1024 [pid 5154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5153] <... mmap resumed>) = 0x7f923ecd1000 [pid 5152] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5157 attached [pid 5156] <... setpgid resumed>) = 0 [pid 5155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] <... umount2 resumed>) = 0 [pid 5157] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5154] <... clone3 resumed> => {parent_tid=[5157]}, 88) = 5157 [pid 5153] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5152] <... chdir resumed>) = 0 [pid 5157] <... rseq resumed>) = 0 [pid 5156] <... openat resumed>) = 3 [pid 5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5154] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] <... mprotect resumed>) = 0 [pid 5157] set_robust_list(0x7f923ecf19a0, 24 [pid 5156] write(3, "1000", 4 [pid 5155] <... mmap resumed>) = 0x7f923ecd1000 [pid 5154] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5152] ioctl(4, LOOP_CLR_FD [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5157] <... set_robust_list resumed>) = 0 [pid 5156] <... write resumed>) = 4 [pid 5155] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5154] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5152] <... ioctl resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5157] rt_sigprocmask(SIG_SETMASK, [], [pid 5156] close(3 [pid 5155] <... mprotect resumed>) = 0 [pid 5154] <... futex resumed>) = 0 [pid 5153] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5152] close(4 [pid 5157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5156] <... close resumed>) = 0 [pid 5155] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5154] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5152] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5157] memfd_create("syzkaller", 0 [pid 5156] symlink("/dev/binderfs", "./binderfs" [pid 5155] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5152] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5158 attached [pid 5157] <... memfd_create resumed>) = 3 [pid 5156] <... symlink resumed>) = 0 [pid 5155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5152] <... futex resumed>) = 1 [pid 5151] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5159 attached [pid 5158] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... clone3 resumed> => {parent_tid=[5158]}, 88) = 5158 [pid 5152] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5159] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5158] <... rseq resumed>) = 0 [pid 5157] <... mmap resumed>) = 0x7f92368d1000 [pid 5156] <... futex resumed>) = 0 [pid 5155] <... clone3 resumed> => {parent_tid=[5159]}, 88) = 5159 [pid 5153] rt_sigprocmask(SIG_SETMASK, [], [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] <... futex resumed>) = 0 [pid 5159] <... rseq resumed>) = 0 [pid 5156] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5155] rt_sigprocmask(SIG_SETMASK, [], [pid 5153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5152] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5151] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] set_robust_list(0x7f923ecf19a0, 24 [pid 5056] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5159] set_robust_list(0x7f923ecf19a0, 24 [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5156] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5155] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5158] <... set_robust_list resumed>) = 0 [pid 5159] rt_sigprocmask(SIG_SETMASK, [], [pid 5156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] newfstatat(4, "", [pid 5159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5159] memfd_create("syzkaller", 0 [pid 5156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] getdents64(4, [pid 5156] <... mmap resumed>) = 0x7f923ecd1000 [pid 5158] rt_sigprocmask(SIG_SETMASK, [], [pid 5156] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5159] <... memfd_create resumed>) = 3 [pid 5156] <... mprotect resumed>) = 0 [pid 5056] getdents64(4, [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5159] <... mmap resumed>) = 0x7f92368d1000 [pid 5156] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] close(4 [pid 5158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5158] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5158] memfd_create("syzkaller", 0 [pid 5156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5153] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5152] <... mknod resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5158] <... memfd_create resumed>) = 3 [pid 5056] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5160 attached [pid 5158] <... mmap resumed>) = 0x7f92368d1000 [pid 5156] <... clone3 resumed> => {parent_tid=[5160]}, 88) = 5160 [pid 5152] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5156] rt_sigprocmask(SIG_SETMASK, [], [pid 5152] <... futex resumed>) = 1 [pid 5151] <... futex resumed>) = 0 [pid 5056] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] <... rseq resumed>) = 0 [pid 5157] <... write resumed>) = 524288 [pid 5152] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5151] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] set_robust_list(0x7f923ecf19a0, 24 [pid 5159] <... write resumed>) = 524288 [pid 5156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5160] <... set_robust_list resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5160] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5156] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] <... futex resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5160] memfd_create("syzkaller", 0 [pid 5157] munmap(0x7f92368d1000, 138412032 [pid 5156] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] unlink("./6/binderfs" [pid 5157] <... munmap resumed>) = 0 [pid 5152] <... open resumed>) = 4 [pid 5056] <... unlink resumed>) = 0 [pid 5160] <... memfd_create resumed>) = 3 [pid 5056] getdents64(3, [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5160] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] close(3 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5157] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... close resumed>) = 0 [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5157] <... openat resumed>) = 4 [pid 5152] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./6" [pid 5157] ioctl(4, LOOP_SET_FD, 3 [pid 5152] <... futex resumed>) = 1 [pid 5151] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5158] <... write resumed>) = 524288 [pid 5151] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] munmap(0x7f92368d1000, 138412032 [pid 5152] sync( [pid 5151] <... futex resumed>) = 0 [pid 5159] <... munmap resumed>) = 0 [pid 5151] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] mkdir("./7", 0777 [pid 5159] <... openat resumed>) = 4 [pid 5056] <... mkdir resumed>) = 0 [pid 5159] ioctl(4, LOOP_SET_FD, 3 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5158] munmap(0x7f92368d1000, 138412032 [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5160] <... write resumed>) = 524288 [pid 5158] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5161 attached [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5161 [pid 5161] set_robust_list(0x555555d616a0, 24) = 0 [pid 5160] munmap(0x7f92368d1000, 138412032 [pid 5157] <... ioctl resumed>) = 0 [pid 5161] chdir("./7" [pid 5160] <... munmap resumed>) = 0 [pid 5157] close(3) = 0 [ 59.628753][ T5157] loop5: detected capacity change from 0 to 1024 [ 59.650721][ T5159] loop4: detected capacity change from 0 to 1024 [pid 5157] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5158] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5161] <... chdir resumed>) = 0 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5159] <... ioctl resumed>) = 0 [pid 5157] <... mkdir resumed>) = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5160] <... openat resumed>) = 4 [pid 5159] close(3 [pid 5157] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5152] <... sync resumed>) = 0 [pid 5161] <... prctl resumed>) = 0 [pid 5160] ioctl(4, LOOP_SET_FD, 3 [pid 5159] <... close resumed>) = 0 [pid 5158] <... openat resumed>) = 4 [pid 5152] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5158] ioctl(4, LOOP_SET_FD, 3 [pid 5152] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] exit_group(0 [pid 5161] setpgid(0, 0 [pid 5152] <... futex resumed>) = ? [pid 5151] <... exit_group resumed>) = ? [pid 5159] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5152] +++ exited with 0 +++ [pid 5158] <... ioctl resumed>) = 0 [pid 5160] <... ioctl resumed>) = 0 [pid 5158] close(3 [pid 5161] <... setpgid resumed>) = 0 [pid 5160] close(3 [pid 5159] <... mkdir resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5157] <... mount resumed>) = 0 [pid 5151] +++ exited with 0 +++ [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5159] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5157] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5161] <... openat resumed>) = 3 [pid 5157] <... openat resumed>) = 3 [pid 5157] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5161] write(3, "1000", 4 [pid 5157] ioctl(4, LOOP_CLR_FD [pid 5161] <... write resumed>) = 4 [pid 5157] <... ioctl resumed>) = 0 [pid 5161] close(3 [pid 5157] close(4) = 0 [pid 5157] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... close resumed>) = 0 [pid 5157] <... futex resumed>) = 1 [pid 5154] <... futex resumed>) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs" [pid 5159] <... mount resumed>) = 0 [pid 5157] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5154] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] <... symlink resumed>) = 0 [pid 5160] <... close resumed>) = 0 [pid 5158] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5154] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5161] <... futex resumed>) = 0 [pid 5159] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5158] <... mkdir resumed>) = 0 [pid 5157] <... mknod resumed>) = 0 [pid 5154] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5161] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5160] <... mkdir resumed>) = 0 [pid 5159] <... openat resumed>) = 3 [pid 5161] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5160] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5159] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5157] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5161] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5159] <... chdir resumed>) = 0 [pid 5157] <... futex resumed>) = 1 [pid 5154] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5159] ioctl(4, LOOP_CLR_FD [pid 5158] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5157] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5154] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5159] <... ioctl resumed>) = 0 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5154] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5161] <... mmap resumed>) = 0x7f923ecd1000 [ 59.683999][ T5160] loop3: detected capacity change from 0 to 1024 [ 59.691469][ T5158] loop2: detected capacity change from 0 to 1024 [pid 5159] close(4 [pid 5157] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5154] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5161] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5159] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5161] <... mprotect resumed>) = 0 [pid 5160] <... mount resumed>) = 0 [pid 5055] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5159] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5160] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5159] <... futex resumed>) = 1 [pid 5160] <... openat resumed>) = 3 [pid 5159] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] <... open resumed>) = 4 [pid 5155] <... futex resumed>) = 0 [pid 5160] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5161] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5160] <... chdir resumed>) = 0 [pid 5159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5155] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5159] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5157] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5157] <... futex resumed>) = 1 [pid 5155] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5157] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5154] <... futex resumed>) = 0 [pid 5161] <... clone3 resumed> => {parent_tid=[5162]}, 88) = 5162 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5154] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] rt_sigprocmask(SIG_SETMASK, [], [pid 5160] ioctl(4, LOOP_CLR_FD [pid 5157] sync( [pid 5154] <... futex resumed>) = 0 [pid 5161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5160] <... ioctl resumed>) = 0 [pid 5161] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5160] close(4 [pid 5161] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5160] <... close resumed>) = 0 [pid 5158] <... mount resumed>) = 0 [pid 5154] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5162 attached [pid 5160] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... mknod resumed>) = 0 [pid 5158] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5162] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5158] <... openat resumed>) = 3 [pid 5160] <... futex resumed>) = 1 [pid 5160] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5162] <... rseq resumed>) = 0 [pid 5158] <... chdir resumed>) = 0 [pid 5156] <... futex resumed>) = 0 [pid 5162] set_robust_list(0x7f923ecf19a0, 24 [pid 5158] ioctl(4, LOOP_CLR_FD [pid 5156] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... set_robust_list resumed>) = 0 [pid 5160] <... futex resumed>) = 0 [pid 5158] <... ioctl resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5162] rt_sigprocmask(SIG_SETMASK, [], [pid 5160] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5158] close(4 [pid 5156] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5158] <... close resumed>) = 0 [pid 5162] memfd_create("syzkaller", 0 [pid 5158] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... memfd_create resumed>) = 3 [pid 5158] <... futex resumed>) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5159] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... mmap resumed>) = 0x7f92368d1000 [pid 5160] <... mknod resumed>) = 0 [pid 5159] <... futex resumed>) = 1 [pid 5158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5155] <... futex resumed>) = 0 [pid 5153] <... futex resumed>) = 0 [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5159] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5155] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5160] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5160] <... futex resumed>) = 1 [pid 5156] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5160] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5156] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5156] <... futex resumed>) = 0 [pid 5160] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5159] <... open resumed>) = 4 [pid 5156] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5162] <... write resumed>) = 524288 [pid 5158] <... mknod resumed>) = 0 [pid 5055] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5158] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5153] <... futex resumed>) = 0 [pid 5159] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5153] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 4 [pid 5159] <... futex resumed>) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5159] sync( [pid 5155] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] <... open resumed>) = 4 [pid 5155] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5157] <... sync resumed>) = 0 [pid 5155] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5157] <... futex resumed>) = 0 [pid 5154] exit_group(0 [pid 5055] getdents64(4, [pid 5154] <... exit_group resumed>) = ? [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5158] <... open resumed>) = 4 [pid 5157] +++ exited with 0 +++ [pid 5154] +++ exited with 0 +++ [pid 5055] getdents64(4, [pid 5160] <... futex resumed>) = 1 [pid 5156] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5160] sync( [pid 5156] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(4 [pid 5156] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5162] munmap(0x7f92368d1000, 138412032 [pid 5156] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] <... munmap resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5158] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5158] <... futex resumed>) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5158] sync( [pid 5153] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5055] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] <... openat resumed>) = 4 [pid 5153] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5153] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5162] ioctl(4, LOOP_SET_FD, 3 [pid 5060] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] unlink("./7/binderfs") = 0 [pid 5060] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5162] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5162] close(3 [pid 5055] <... close resumed>) = 0 [pid 5162] <... close resumed>) = 0 [pid 5055] rmdir("./7" [pid 5162] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5160] <... sync resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5160] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] mkdir("./8", 0777 [pid 5160] <... futex resumed>) = 1 [pid 5158] <... sync resumed>) = 0 [pid 5156] <... futex resumed>) = 0 [pid 5162] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5160] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] exit_group(0 [pid 5155] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] <... mkdir resumed>) = 0 [pid 5160] <... futex resumed>) = ? [pid 5158] <... futex resumed>) = 1 [pid 5156] <... exit_group resumed>) = ? [pid 5153] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5158] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] exit_group(0 [pid 5055] <... openat resumed>) = 3 [pid 5158] <... futex resumed>) = ? [pid 5153] <... exit_group resumed>) = ? [pid 5162] <... mount resumed>) = 0 [pid 5159] <... sync resumed>) = 0 [pid 5158] +++ exited with 0 +++ [pid 5153] +++ exited with 0 +++ [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5159] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5159] <... futex resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5160] +++ exited with 0 +++ [pid 5159] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5156] +++ exited with 0 +++ [pid 5155] exit_group(0 [pid 5162] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5159] <... futex resumed>) = ? [pid 5155] <... exit_group resumed>) = ? [pid 5057] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5162] <... openat resumed>) = 3 [pid 5159] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5162] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5162] <... chdir resumed>) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... openat resumed>) = 3 [pid 5162] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 5164 attached ) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5162] close(4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5162] <... close resumed>) = 0 [pid 5057] getdents64(3, [pid 5162] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5162] <... futex resumed>) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5057] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5162] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5161] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] set_robust_list(0x555555d616a0, 24 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5164 [pid 5162] <... mknod resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5162] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... set_robust_list resumed>) = 0 [pid 5060] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 59.845341][ T5162] loop1: detected capacity change from 0 to 1024 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] chdir("./8" [pid 5162] <... open resumed>) = 4 [pid 5060] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5164] <... chdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(3, "", [pid 5058] <... openat resumed>) = 3 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] newfstatat(3, "", [pid 5164] <... prctl resumed>) = 0 [pid 5162] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5164] setpgid(0, 0 [pid 5162] <... futex resumed>) = 1 [pid 5060] newfstatat(4, "", [pid 5059] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5162] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5162] sync( [pid 5161] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5161] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4) = 0 [pid 5060] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5164] <... setpgid resumed>) = 0 [pid 5060] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] getdents64(3, [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./7/binderfs") = 0 [pid 5060] getdents64(3, [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] <... openat resumed>) = 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5164] write(3, "1000", 4 [pid 5060] close(3) = 0 [pid 5060] rmdir("./7" [pid 5164] <... write resumed>) = 4 [pid 5164] close(3 [pid 5060] <... rmdir resumed>) = 0 [pid 5164] <... close resumed>) = 0 [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 5060] mkdir("./8", 0777 [pid 5164] <... symlink resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5164] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] <... futex resumed>) = 0 [pid 5162] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5164] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5162] <... futex resumed>) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5164] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5162] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] exit_group(0 [pid 5059] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5162] <... futex resumed>) = ? [pid 5161] <... exit_group resumed>) = ? [pid 5060] <... openat resumed>) = 3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5162] +++ exited with 0 +++ [pid 5161] +++ exited with 0 +++ [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5164] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(3 [pid 5059] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... openat resumed>) = 4 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5164] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] <... close resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5057] newfstatat(4, "", [pid 5056] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5164] <... mprotect resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5164] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] getdents64(4, [pid 5058] <... umount2 resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] newfstatat(3, "", ./strace-static-x86_64: Process 5165 attached [pid 5164] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5165 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5165] set_robust_list(0x555555d616a0, 24 [pid 5164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(4, [pid 5056] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5166 attached [pid 5164] <... clone3 resumed> => {parent_tid=[5166]}, 88) = 5166 [pid 5059] close(4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5166] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5164] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... close resumed>) = 0 [pid 5057] close(4 [pid 5166] <... rseq resumed>) = 0 [pid 5164] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5166] set_robust_list(0x7f923ecf19a0, 24 [pid 5164] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5166] <... set_robust_list resumed>) = 0 [pid 5165] chdir("./8" [pid 5164] <... futex resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... umount2 resumed>) = 0 [pid 5166] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] <... chdir resumed>) = 0 [pid 5164] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... rmdir resumed>) = 0 [pid 5166] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5165] setpgid(0, 0 [pid 5059] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5058] <... openat resumed>) = 4 [pid 5166] memfd_create("syzkaller", 0 [pid 5165] <... setpgid resumed>) = 0 [pid 5056] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] <... memfd_create resumed>) = 3 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] newfstatat(4, "", [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5165] <... openat resumed>) = 3 [pid 5059] unlink("./7/binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] <... mmap resumed>) = 0x7f92368d1000 [pid 5165] write(3, "1000", 4 [pid 5059] <... unlink resumed>) = 0 [pid 5058] getdents64(4, [pid 5056] newfstatat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5165] <... write resumed>) = 4 [pid 5059] getdents64(3, [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] close(3 [pid 5058] getdents64(4, [pid 5057] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5056] umount2("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5165] close(3 [pid 5059] rmdir("./7" [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5165] <... close resumed>) = 0 [pid 5058] close(4 [pid 5056] openat(AT_FDCWD, "./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5165] <... symlink resumed>) = 0 [pid 5058] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] newfstatat(4, "", [pid 5059] mkdir("./8", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] unlink("./7/binderfs" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5165] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5056] getdents64(4, [pid 5165] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5165] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] unlink("./7/binderfs" [pid 5056] close(4 [pid 5165] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./7/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] getdents64(3, [pid 5165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] <... write resumed>) = 524288 [pid 5165] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5165] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... close resumed>) = 0 [pid 5057] close(3 [pid 5056] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5165] <... mprotect resumed>) = 0 [pid 5058] rmdir("./7" [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5165] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] mkdir("./8", 0777 [pid 5057] rmdir("./7" [pid 5165] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] unlink("./7/binderfs" [pid 5165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5167 attached [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] getdents64(3, [pid 5167] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5165] <... clone3 resumed> => {parent_tid=[5167]}, 88) = 5167 [pid 5058] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5167] <... rseq resumed>) = 0 [pid 5166] munmap(0x7f92368d1000, 138412032 [pid 5165] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] mkdir("./8", 0777 [pid 5056] close(3 [pid 5167] set_robust_list(0x7f923ecf19a0, 24 [pid 5165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5167] <... set_robust_list resumed>) = 0 [pid 5165] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... openat resumed>) = 3 [pid 5056] rmdir("./7" [pid 5167] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5167] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5165] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5168 attached [pid 5167] memfd_create("syzkaller", 0 [pid 5166] <... munmap resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5168] set_robust_list(0x555555d616a0, 24 [pid 5167] <... memfd_create resumed>) = 3 [pid 5057] close(3 [pid 5056] mkdir("./8", 0777 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5057] <... close resumed>) = 0 ./strace-static-x86_64: Process 5169 attached [pid 5168] chdir("./8" [pid 5167] <... mmap resumed>) = 0x7f92368d1000 [pid 5166] <... openat resumed>) = 4 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5168 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... mkdir resumed>) = 0 [pid 5166] ioctl(4, LOOP_SET_FD, 3 [pid 5169] set_robust_list(0x555555d616a0, 24 [pid 5168] <... chdir resumed>) = 0 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5169] <... set_robust_list resumed>) = 0 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5169 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5169] chdir("./8" [pid 5168] setpgid(0, 0 [pid 5056] <... openat resumed>) = 3 [pid 5169] <... chdir resumed>) = 0 [pid 5168] <... setpgid resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5169] <... prctl resumed>) = 0 [pid 5056] close(3 [pid 5169] setpgid(0, 0 [pid 5168] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5169] <... setpgid resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5171 attached ) = 3 [pid 5168] write(3, "1000", 4 [pid 5171] set_robust_list(0x555555d616a0, 24 [pid 5168] <... write resumed>) = 4 [pid 5168] close(3) = 0 [pid 5171] <... set_robust_list resumed>) = 0 [pid 5169] write(3, "1000", 4 [pid 5168] symlink("/dev/binderfs", "./binderfs" [pid 5171] chdir("./8"./strace-static-x86_64: Process 5170 attached ) = 0 [pid 5169] <... write resumed>) = 4 [pid 5168] <... symlink resumed>) = 0 [pid 5167] <... write resumed>) = 524288 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5171 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] set_robust_list(0x555555d616a0, 24 [pid 5169] close(3 [pid 5168] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5170 [pid 5171] <... prctl resumed>) = 0 [pid 5169] <... close resumed>) = 0 [pid 5168] <... futex resumed>) = 0 [pid 5170] <... set_robust_list resumed>) = 0 [pid 5171] setpgid(0, 0 [pid 5170] chdir("./8" [pid 5169] symlink("/dev/binderfs", "./binderfs" [pid 5168] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5170] <... chdir resumed>) = 0 [pid 5169] <... symlink resumed>) = 0 [pid 5168] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5171] <... setpgid resumed>) = 0 [pid 5170] <... prctl resumed>) = 0 [pid 5168] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5170] setpgid(0, 0 [pid 5169] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5166] <... ioctl resumed>) = 0 [pid 5170] <... setpgid resumed>) = 0 [pid 5169] <... futex resumed>) = 0 [pid 5168] <... mmap resumed>) = 0x7f923ecd1000 [pid 5171] <... openat resumed>) = 3 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5169] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5168] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5166] close(3 [pid 5171] write(3, "1000", 4 [pid 5170] <... openat resumed>) = 3 [pid 5169] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5168] <... mprotect resumed>) = 0 [pid 5167] munmap(0x7f92368d1000, 138412032 [pid 5166] <... close resumed>) = 0 [pid 5171] <... write resumed>) = 4 [pid 5170] write(3, "1000", 4 [pid 5169] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5168] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5167] <... munmap resumed>) = 0 [pid 5166] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5171] close(3 [pid 5170] <... write resumed>) = 4 [pid 5169] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5168] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5171] <... close resumed>) = 0 [pid 5170] close(3 [pid 5169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5167] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5172 attached [pid 5171] symlink("/dev/binderfs", "./binderfs" [pid 5170] <... close resumed>) = 0 [pid 5169] <... mmap resumed>) = 0x7f923ecd1000 [pid 5166] <... mkdir resumed>) = 0 [pid 5172] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5171] <... symlink resumed>) = 0 [pid 5169] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5168] <... clone3 resumed> => {parent_tid=[5172]}, 88) = 5172 [pid 5167] <... openat resumed>) = 4 [pid 5172] <... rseq resumed>) = 0 [ 60.067274][ T5166] loop0: detected capacity change from 0 to 1024 [pid 5170] symlink("/dev/binderfs", "./binderfs" [pid 5169] <... mprotect resumed>) = 0 [pid 5168] rt_sigprocmask(SIG_SETMASK, [], [pid 5167] ioctl(4, LOOP_SET_FD, 3 [pid 5166] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5172] set_robust_list(0x7f923ecf19a0, 24 [pid 5171] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... symlink resumed>) = 0 [pid 5169] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5168] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5170] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5172] <... set_robust_list resumed>) = 0 [pid 5171] <... futex resumed>) = 0 [pid 5169] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5168] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5171] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5169] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5168] <... futex resumed>) = 0 [pid 5170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5168] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5169] <... clone3 resumed> => {parent_tid=[5173]}, 88) = 5173 [pid 5171] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5170] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5169] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5173 attached [pid 5172] rt_sigprocmask(SIG_SETMASK, [], [pid 5171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5170] <... mprotect resumed>) = 0 [pid 5169] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5169] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] memfd_create("syzkaller", 0 [pid 5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5170] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5169] <... futex resumed>) = 0 [pid 5173] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5172] <... memfd_create resumed>) = 3 [pid 5171] <... mmap resumed>) = 0x7f923ecd1000 [pid 5170] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5169] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5166] <... mount resumed>) = 0 [pid 5173] <... rseq resumed>) = 0 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5171] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5173] set_robust_list(0x7f923ecf19a0, 24 [pid 5172] <... mmap resumed>) = 0x7f92368d1000 [pid 5171] <... mprotect resumed>) = 0 [pid 5166] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5174 attached [pid 5173] <... set_robust_list resumed>) = 0 [pid 5166] <... openat resumed>) = 3 [pid 5174] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5173] rt_sigprocmask(SIG_SETMASK, [], [pid 5171] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5167] <... ioctl resumed>) = 0 [pid 5166] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5174] <... rseq resumed>) = 0 [pid 5173] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5171] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5170] <... clone3 resumed> => {parent_tid=[5174]}, 88) = 5174 [pid 5167] close(3 [pid 5166] <... chdir resumed>) = 0 [pid 5174] set_robust_list(0x7f923ecf19a0, 24 [pid 5173] memfd_create("syzkaller", 0 [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5170] rt_sigprocmask(SIG_SETMASK, [], [pid 5167] <... close resumed>) = 0 [pid 5166] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 5175 attached [pid 5174] <... set_robust_list resumed>) = 0 [pid 5173] <... memfd_create resumed>) = 3 [pid 5170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5167] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5166] <... ioctl resumed>) = 0 [pid 5175] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5174] rt_sigprocmask(SIG_SETMASK, [], [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5170] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... mkdir resumed>) = 0 [pid 5166] close(4 [pid 5175] <... rseq resumed>) = 0 [pid 5174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5173] <... mmap resumed>) = 0x7f92368d1000 [pid 5172] <... write resumed>) = 524288 [pid 5171] <... clone3 resumed> => {parent_tid=[5175]}, 88) = 5175 [pid 5170] <... futex resumed>) = 0 [pid 5167] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5166] <... close resumed>) = 0 [pid 5175] set_robust_list(0x7f923ecf19a0, 24 [pid 5174] memfd_create("syzkaller", 0 [pid 5172] munmap(0x7f92368d1000, 138412032 [pid 5171] rt_sigprocmask(SIG_SETMASK, [], [pid 5170] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5166] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5174] <... memfd_create resumed>) = 3 [pid 5172] <... munmap resumed>) = 0 [pid 5171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5175] rt_sigprocmask(SIG_SETMASK, [], [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5171] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... mount resumed>) = 0 [pid 5166] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5174] <... mmap resumed>) = 0x7f92368d1000 [pid 5172] <... openat resumed>) = 4 [pid 5171] <... futex resumed>) = 0 [pid 5167] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5164] <... futex resumed>) = 0 [pid 5175] memfd_create("syzkaller", 0 [ 60.109376][ T5167] loop5: detected capacity change from 0 to 1024 [pid 5172] ioctl(4, LOOP_SET_FD, 3 [pid 5171] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5167] <... openat resumed>) = 3 [pid 5164] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5175] <... memfd_create resumed>) = 3 [pid 5166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5167] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5166] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5175] <... mmap resumed>) = 0x7f92368d1000 [pid 5167] <... chdir resumed>) = 0 [pid 5167] ioctl(4, LOOP_CLR_FD [pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5167] <... ioctl resumed>) = 0 [pid 5167] close(4) = 0 [pid 5167] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5167] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5166] <... mknod resumed>) = 0 [pid 5165] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5165] <... futex resumed>) = 0 [pid 5167] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5165] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... write resumed>) = 524288 [pid 5166] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... write resumed>) = 524288 [pid 5174] <... write resumed>) = 524288 [pid 5173] munmap(0x7f92368d1000, 138412032 [pid 5167] <... mknod resumed>) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5164] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... ioctl resumed>) = 0 [pid 5172] close(3) = 0 [pid 5172] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5166] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5173] <... munmap resumed>) = 0 [pid 5172] <... mkdir resumed>) = 0 [pid 5167] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5165] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5165] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... openat resumed>) = 4 [pid 5172] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5167] <... open resumed>) = 4 [pid 5174] munmap(0x7f92368d1000, 138412032 [pid 5173] ioctl(4, LOOP_SET_FD, 3 [pid 5166] <... open resumed>) = 4 [ 60.161866][ T5172] loop4: detected capacity change from 0 to 1024 [pid 5175] munmap(0x7f92368d1000, 138412032 [pid 5174] <... munmap resumed>) = 0 [pid 5172] <... mount resumed>) = 0 [pid 5167] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5175] <... munmap resumed>) = 0 [pid 5172] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5167] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5172] <... chdir resumed>) = 0 [pid 5167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5165] <... futex resumed>) = 0 [pid 5175] <... openat resumed>) = 4 [pid 5172] ioctl(4, LOOP_CLR_FD [pid 5167] sync( [pid 5165] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5172] <... ioctl resumed>) = 0 [pid 5166] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] ioctl(4, LOOP_SET_FD, 3 [pid 5174] <... openat resumed>) = 4 [pid 5172] close(4 [pid 5174] ioctl(4, LOOP_SET_FD, 3 [pid 5173] <... ioctl resumed>) = 0 [pid 5172] <... close resumed>) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5172] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] <... futex resumed>) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5168] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5168] <... futex resumed>) = 0 [pid 5168] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... mknod resumed>) = 0 [pid 5172] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... ioctl resumed>) = 0 [pid 5174] <... ioctl resumed>) = 0 [pid 5173] close(3 [pid 5166] sync( [pid 5164] <... futex resumed>) = 0 [pid 5174] close(3 [pid 5173] <... close resumed>) = 0 [pid 5164] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5175] close(3 [pid 5174] <... close resumed>) = 0 [pid 5173] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5172] <... futex resumed>) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5175] <... close resumed>) = 0 [pid 5174] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5173] <... mkdir resumed>) = 0 [pid 5172] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5168] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... sync resumed>) = 0 [pid 5175] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5173] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5168] <... futex resumed>) = 0 [pid 5167] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... mkdir resumed>) = 0 [pid 5174] <... mkdir resumed>) = 0 [pid 5168] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5167] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] exit_group(0) = ? [pid 5174] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5173] <... mount resumed>) = 0 [pid 5167] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ [pid 5173] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5173] <... openat resumed>) = 3 [pid 5173] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5174] <... mount resumed>) = 0 [pid 5173] <... chdir resumed>) = 0 [pid 5060] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5174] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5173] ioctl(4, LOOP_CLR_FD [pid 5172] <... open resumed>) = 4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5174] <... openat resumed>) = 3 [pid 5173] <... ioctl resumed>) = 0 [pid 5166] <... sync resumed>) = 0 [pid 5166] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5173] close(4 [pid 5166] <... futex resumed>) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5175] <... mount resumed>) = 0 [pid 5174] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5173] <... close resumed>) = 0 [pid 5166] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] exit_group(0 [pid 5060] newfstatat(3, "", [pid 5175] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5164] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5175] <... openat resumed>) = 3 [pid 5174] <... chdir resumed>) = 0 [pid 5173] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... futex resumed>) = ? [ 60.204219][ T5173] loop3: detected capacity change from 0 to 1024 [ 60.217437][ T5175] loop1: detected capacity change from 0 to 1024 [ 60.227172][ T5174] loop2: detected capacity change from 0 to 1024 [pid 5060] getdents64(3, [pid 5175] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5172] <... futex resumed>) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5175] <... chdir resumed>) = 0 [pid 5172] sync( [pid 5168] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] ioctl(4, LOOP_CLR_FD [pid 5174] ioctl(4, LOOP_CLR_FD [pid 5173] <... futex resumed>) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5168] <... futex resumed>) = 0 [pid 5166] +++ exited with 0 +++ [pid 5164] +++ exited with 0 +++ [pid 5175] <... ioctl resumed>) = 0 [pid 5173] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5169] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5174] <... ioctl resumed>) = 0 [pid 5175] close(4 [pid 5174] close(4 [pid 5173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5169] <... futex resumed>) = 0 [pid 5175] <... close resumed>) = 0 [pid 5174] <... close resumed>) = 0 [pid 5173] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5169] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = 0 [pid 5175] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5174] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... mknod resumed>) = 0 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5171] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... futex resumed>) = 0 [pid 5055] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5170] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 1 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5174] <... futex resumed>) = 0 [pid 5170] <... futex resumed>) = 1 [pid 5055] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5174] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5170] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = 3 [pid 5175] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(3, "", [pid 5174] <... mknod resumed>) = 0 [pid 5173] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5174] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... mknod resumed>) = 0 [pid 5174] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5174] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5170] <... futex resumed>) = 0 [pid 5060] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5170] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5175] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5175] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5175] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5173] <... open resumed>) = 4 [pid 5171] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5175] <... open resumed>) = 4 [pid 5174] <... open resumed>) = 4 [pid 5060] getdents64(4, [pid 5174] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, [pid 5174] <... futex resumed>) = 1 [pid 5173] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5175] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = 1 [pid 5170] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5169] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5175] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] <... futex resumed>) = 0 [pid 5170] <... futex resumed>) = 0 [pid 5169] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5175] sync( [pid 5174] sync( [pid 5173] sync( [pid 5171] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5169] <... futex resumed>) = 0 [pid 5060] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] <... futex resumed>) = 0 [pid 5169] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5171] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5172] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5055] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5172] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5172] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] newfstatat(4, "", [pid 5168] exit_group(0 [pid 5060] unlink("./8/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5172] <... futex resumed>) = ? [pid 5168] <... exit_group resumed>) = ? [pid 5060] <... unlink resumed>) = 0 [pid 5172] +++ exited with 0 +++ [pid 5168] +++ exited with 0 +++ [pid 5060] getdents64(3, [pid 5055] getdents64(4, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... close resumed>) = 0 [pid 5059] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] rmdir("./8") = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5175] <... sync resumed>) = 0 [pid 5174] <... sync resumed>) = 0 [pid 5055] close(4 [pid 5175] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] mkdir("./9", 0777 [pid 5059] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5175] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5170] <... futex resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5055] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5175] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... sync resumed>) = 0 [pid 5171] exit_group(0 [pid 5170] exit_group(0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5175] <... futex resumed>) = ? [pid 5173] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] <... exit_group resumed>) = ? [pid 5055] <... rmdir resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5174] <... futex resumed>) = ? [pid 5173] <... futex resumed>) = 1 [pid 5170] <... exit_group resumed>) = ? [pid 5169] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] getdents64(3, [pid 5055] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5174] +++ exited with 0 +++ [pid 5173] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5169] exit_group(0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5173] <... futex resumed>) = ? [pid 5171] +++ exited with 0 +++ [pid 5169] <... exit_group resumed>) = ? [pid 5060] <... openat resumed>) = 3 [pid 5055] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5173] +++ exited with 0 +++ [pid 5170] +++ exited with 0 +++ [pid 5169] +++ exited with 0 +++ [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] close(3 [pid 5059] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] unlink("./8/binderfs" [pid 5060] <... close resumed>) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 3 [pid 5055] <... unlink resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5058] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5176 attached [pid 5058] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(3, [pid 5176] set_robust_list(0x555555d616a0, 24 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5176 [pid 5058] newfstatat(3, "", [pid 5057] newfstatat(3, "", [pid 5056] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] chdir("./9" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] close(3 [pid 5176] <... chdir resumed>) = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5176] <... prctl resumed>) = 0 [pid 5057] getdents64(3, [pid 5055] rmdir("./8" [pid 5176] setpgid(0, 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... rmdir resumed>) = 0 [pid 5176] <... setpgid resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5176] <... openat resumed>) = 3 [pid 5058] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5176] write(3, "1000", 4 [pid 5058] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] <... write resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5176] close(3 [pid 5056] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5176] <... close resumed>) = 0 [pid 5058] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 4 [pid 5176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(4, "", [pid 5058] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5055] mkdir("./9", 0777 [pid 5176] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(4, "", [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5176] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, [pid 5176] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] getdents64(4, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5176] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] close(4 [pid 5176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] getdents64(4, [pid 5056] <... close resumed>) = 0 [pid 5176] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5176] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... umount2 resumed>) = 0 [pid 5058] close(4 [pid 5056] <... rmdir resumed>) = 0 [pid 5176] <... mprotect resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5176] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... mkdir resumed>) = 0 [pid 5176] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5056] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 3 [pid 5056] newfstatat(AT_FDCWD, "./8/binderfs", ./strace-static-x86_64: Process 5177 attached [pid 5176] <... clone3 resumed> => {parent_tid=[5177]}, 88) = 5177 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5177] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5176] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... rseq resumed>) = 0 [pid 5176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./8/binderfs" [pid 5177] set_robust_list(0x7f923ecf19a0, 24 [pid 5176] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5056] <... unlink resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5177] <... set_robust_list resumed>) = 0 [pid 5176] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5177] rt_sigprocmask(SIG_SETMASK, [], [pid 5176] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] unlink("./8/binderfs" [pid 5056] getdents64(3, [pid 5058] <... unlink resumed>) = 0 [pid 5177] memfd_create("syzkaller", 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5177] <... memfd_create resumed>) = 3 [pid 5058] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] rmdir("./8" [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] close(3 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5177] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] <... close resumed>) = 0 [pid 5055] close(3 [pid 5058] rmdir("./8" [pid 5055] <... close resumed>) = 0 [pid 5056] mkdir("./9", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5058] mkdir("./9", 0777 [pid 5059] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... mkdir resumed>) = 0 [pid 5057] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... openat resumed>) = 3 [pid 5058] <... openat resumed>) = 3 [pid 5057] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5178 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... ioctl resumed>) = 0 [pid 5057] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5058] close(3 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5178 attached [pid 5059] newfstatat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5179 attached [pid 5178] set_robust_list(0x555555d616a0, 24 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... openat resumed>) = 4 [pid 5179] set_robust_list(0x555555d616a0, 24) = 0 [pid 5059] umount2("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(4, "", ./strace-static-x86_64: Process 5180 attached [pid 5179] chdir("./9" [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5180 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5180] set_robust_list(0x555555d616a0, 24 [pid 5179] <... chdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5179 [pid 5180] <... set_robust_list resumed>) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... write resumed>) = 524288 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5180] chdir("./9" [pid 5179] <... prctl resumed>) = 0 [pid 5180] <... chdir resumed>) = 0 [pid 5179] setpgid(0, 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] openat(AT_FDCWD, "./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] close(4) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5057] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5179] <... setpgid resumed>) = 0 [pid 5178] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5057] <... rmdir resumed>) = 0 [pid 5177] munmap(0x7f92368d1000, 138412032 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] chdir("./9" [pid 5177] <... munmap resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5180] <... prctl resumed>) = 0 [pid 5179] <... openat resumed>) = 3 [pid 5178] <... chdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] setpgid(0, 0 [pid 5179] write(3, "1000", 4 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... setpgid resumed>) = 0 [pid 5179] <... write resumed>) = 4 [pid 5178] <... prctl resumed>) = 0 [pid 5177] <... openat resumed>) = 4 [pid 5059] getdents64(4, [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5178] setpgid(0, 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5180] <... openat resumed>) = 3 [pid 5179] close(3 [pid 5178] <... setpgid resumed>) = 0 [pid 5177] ioctl(4, LOOP_SET_FD, 3 [pid 5059] close(4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5180] write(3, "1000", 4 [pid 5179] <... close resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... close resumed>) = 0 [pid 5180] <... write resumed>) = 4 [pid 5180] close(3) = 0 [pid 5180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5180] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] symlink("/dev/binderfs", "./binderfs" [pid 5057] unlink("./8/binderfs") = 0 [pid 5057] getdents64(3, [pid 5180] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5180] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5179] <... symlink resumed>) = 0 [pid 5057] close(3 [pid 5180] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... close resumed>) = 0 [pid 5180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] rmdir("./8" [pid 5180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5179] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... openat resumed>) = 3 [pid 5059] rmdir("./8/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... rmdir resumed>) = 0 [pid 5180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5179] <... futex resumed>) = 0 [pid 5180] <... mmap resumed>) = 0x7f923ecd1000 [pid 5179] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5180] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5179] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5180] <... mprotect resumed>) = 0 [pid 5179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5180] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5179] <... mmap resumed>) = 0x7f923ecd1000 [pid 5178] write(3, "1000", 4 [pid 5057] mkdir("./9", 0777 [pid 5179] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5178] <... write resumed>) = 4 [pid 5057] <... mkdir resumed>) = 0 [pid 5059] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5179] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5179] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5181 attached [pid 5179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5182 attached [pid 5181] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5180] <... clone3 resumed> => {parent_tid=[5181]}, 88) = 5181 [pid 5178] close(3 [pid 5177] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5182] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5181] <... rseq resumed>) = 0 [pid 5180] rt_sigprocmask(SIG_SETMASK, [], [pid 5179] <... clone3 resumed> => {parent_tid=[5182]}, 88) = 5182 [pid 5178] <... close resumed>) = 0 [pid 5177] close(3 [pid 5059] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5182] <... rseq resumed>) = 0 [pid 5181] set_robust_list(0x7f923ecf19a0, 24 [pid 5180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5179] rt_sigprocmask(SIG_SETMASK, [], [pid 5177] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] close(3 [pid 5182] set_robust_list(0x7f923ecf19a0, 24 [pid 5181] <... set_robust_list resumed>) = 0 [pid 5180] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5178] symlink("/dev/binderfs", "./binderfs" [pid 5177] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] unlink("./8/binderfs" [pid 5057] <... close resumed>) = 0 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5181] rt_sigprocmask(SIG_SETMASK, [], [pid 5180] <... futex resumed>) = 0 [pid 5179] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... mkdir resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] rt_sigprocmask(SIG_SETMASK, [], [pid 5181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5180] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5179] <... futex resumed>) = 0 [pid 5178] <... symlink resumed>) = 0 [pid 5182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5181] memfd_create("syzkaller", 0 [pid 5179] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5178] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, ./strace-static-x86_64: Process 5183 attached [pid 5182] memfd_create("syzkaller", 0 [pid 5181] <... memfd_create resumed>) = 3 [pid 5178] <... futex resumed>) = 0 [pid 5177] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5183] set_robust_list(0x555555d616a0, 24 [pid 5182] <... memfd_create resumed>) = 3 [pid 5178] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] close(3 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5178] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... close resumed>) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [ 60.507521][ T5177] loop5: detected capacity change from 0 to 1024 [pid 5182] <... mmap resumed>) = 0x7f92368d1000 [pid 5181] <... mmap resumed>) = 0x7f92368d1000 [pid 5178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] rmdir("./8" [pid 5183] chdir("./9" [pid 5178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5183 [pid 5178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5178] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] mkdir("./9", 0777 [pid 5178] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... mkdir resumed>) = 0 [pid 5178] <... mprotect resumed>) = 0 [pid 5178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5183] <... chdir resumed>) = 0 [pid 5182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5184 attached [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... mount resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5184] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5178] <... clone3 resumed> => {parent_tid=[5184]}, 88) = 5184 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5184] <... rseq resumed>) = 0 [pid 5178] rt_sigprocmask(SIG_SETMASK, [], [pid 5184] set_robust_list(0x7f923ecf19a0, 24 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5184] <... set_robust_list resumed>) = 0 [pid 5178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5183] <... prctl resumed>) = 0 [pid 5177] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5184] rt_sigprocmask(SIG_SETMASK, [], [pid 5178] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] close(3 [pid 5184] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5178] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5183] setpgid(0, 0 [pid 5177] <... openat resumed>) = 3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5184] memfd_create("syzkaller", 0 [pid 5183] <... setpgid resumed>) = 0 [pid 5177] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... chdir resumed>) = 0 [pid 5183] <... openat resumed>) = 3 [pid 5178] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5177] ioctl(4, LOOP_CLR_FD) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5185 [pid 5177] close(4) = 0 ./strace-static-x86_64: Process 5185 attached [pid 5184] <... memfd_create resumed>) = 3 [pid 5183] write(3, "1000", 4 [pid 5182] <... write resumed>) = 524288 [pid 5177] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] set_robust_list(0x555555d616a0, 24 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5183] <... write resumed>) = 4 [pid 5177] <... futex resumed>) = 1 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5184] <... mmap resumed>) = 0x7f92368d1000 [pid 5183] close(3 [pid 5177] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] chdir("./9" [pid 5183] <... close resumed>) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs" [pid 5176] <... futex resumed>) = 0 [pid 5185] <... chdir resumed>) = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5183] <... symlink resumed>) = 0 [pid 5176] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... prctl resumed>) = 0 [pid 5183] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 0 [pid 5176] <... futex resumed>) = 1 [pid 5185] setpgid(0, 0 [pid 5183] <... futex resumed>) = 0 [pid 5177] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5176] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5185] <... setpgid resumed>) = 0 [pid 5183] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5181] <... write resumed>) = 524288 [pid 5177] <... mknod resumed>) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5177] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5182] munmap(0x7f92368d1000, 138412032 [pid 5177] <... futex resumed>) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5182] <... munmap resumed>) = 0 [pid 5177] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5176] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... mmap resumed>) = 0x7f923ecd1000 [pid 5182] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5181] munmap(0x7f92368d1000, 138412032 [pid 5176] <... futex resumed>) = 0 [pid 5185] <... openat resumed>) = 3 [pid 5183] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5182] <... openat resumed>) = 4 [pid 5181] <... munmap resumed>) = 0 [pid 5176] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5185] write(3, "1000", 4 [pid 5183] <... mprotect resumed>) = 0 [pid 5182] ioctl(4, LOOP_SET_FD, 3 [pid 5185] <... write resumed>) = 4 [pid 5184] <... write resumed>) = 524288 [pid 5183] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5181] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5177] <... open resumed>) = 4 [pid 5183] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5182] <... ioctl resumed>) = 0 [pid 5181] <... openat resumed>) = 4 [pid 5177] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5177] <... futex resumed>) = 1 [pid 5176] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5186 attached [pid 5182] close(3 [pid 5181] ioctl(4, LOOP_SET_FD, 3 [pid 5177] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5176] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5185] close(3 [pid 5184] munmap(0x7f92368d1000, 138412032 [pid 5183] <... clone3 resumed> => {parent_tid=[5186]}, 88) = 5186 [pid 5182] <... close resumed>) = 0 [pid 5177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5176] <... futex resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs" [pid 5186] <... rseq resumed>) = 0 [pid 5185] <... symlink resumed>) = 0 [pid 5183] rt_sigprocmask(SIG_SETMASK, [], [pid 5182] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5177] sync( [pid 5176] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5185] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... munmap resumed>) = 0 [pid 5183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5182] <... mkdir resumed>) = 0 [pid 5185] <... futex resumed>) = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5183] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5184] <... openat resumed>) = 4 [pid 5183] <... futex resumed>) = 0 [pid 5186] set_robust_list(0x7f923ecf19a0, 24 [pid 5185] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5184] ioctl(4, LOOP_SET_FD, 3 [pid 5183] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5182] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5186] <... set_robust_list resumed>) = 0 [pid 5185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5186] memfd_create("syzkaller", 0) = 3 [pid 5182] <... mount resumed>) = 0 [pid 5185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5182] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5182] <... openat resumed>) = 3 [pid 5185] <... mmap resumed>) = 0x7f923ecd1000 [pid 5182] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5185] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5184] <... ioctl resumed>) = 0 [pid 5182] <... chdir resumed>) = 0 [pid 5186] <... mmap resumed>) = 0x7f92368d1000 [pid 5185] <... mprotect resumed>) = 0 [pid 5184] close(3 [pid 5182] ioctl(4, LOOP_CLR_FD [pid 5185] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5184] <... close resumed>) = 0 [pid 5182] <... ioctl resumed>) = 0 [pid 5186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5185] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5184] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5182] close(4 [pid 5185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5182] <... close resumed>) = 0 [pid 5177] <... sync resumed>) = 0 [pid 5182] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... ioctl resumed>) = 0 [pid 5184] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5187 attached [pid 5182] <... futex resumed>) = 1 [pid 5181] close(3 [pid 5179] <... futex resumed>) = 0 [pid 5177] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5185] <... clone3 resumed> => {parent_tid=[5187]}, 88) = 5187 [pid 5182] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] <... close resumed>) = 0 [pid 5179] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5187] <... rseq resumed>) = 0 [pid 5186] <... write resumed>) = 524288 [pid 5185] rt_sigprocmask(SIG_SETMASK, [], [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5179] <... futex resumed>) = 0 [pid 5176] exit_group(0 [pid 5182] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5181] <... mkdir resumed>) = 0 [pid 5179] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... exit_group resumed>) = ? [pid 5187] set_robust_list(0x7f923ecf19a0, 24 [pid 5185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5184] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5187] <... set_robust_list resumed>) = 0 [pid 5185] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] rt_sigprocmask(SIG_SETMASK, [], [pid 5185] <... futex resumed>) = 0 [pid 5187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5185] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5181] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5187] memfd_create("syzkaller", 0) = 3 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] +++ exited with 0 +++ [pid 5176] +++ exited with 0 +++ [pid 5187] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5182] <... mknod resumed>) = 0 [pid 5181] <... mount resumed>) = 0 [pid 5182] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5182] <... futex resumed>) = 1 [pid 5181] <... openat resumed>) = 3 [pid 5179] <... futex resumed>) = 0 [pid 5060] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] munmap(0x7f92368d1000, 138412032 [pid 5184] <... mount resumed>) = 0 [pid 5182] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5179] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5186] <... munmap resumed>) = 0 [pid 5184] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] <... chdir resumed>) = 0 [pid 5179] <... futex resumed>) = 0 [ 60.615909][ T5182] loop1: detected capacity change from 0 to 1024 [ 60.628361][ T5181] loop3: detected capacity change from 0 to 1024 [ 60.645709][ T5184] loop0: detected capacity change from 0 to 1024 [pid 5060] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5186] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5182] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5181] ioctl(4, LOOP_CLR_FD [pid 5179] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5186] <... openat resumed>) = 4 [pid 5184] <... openat resumed>) = 3 [pid 5182] <... open resumed>) = 4 [pid 5181] <... ioctl resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5181] close(4 [pid 5186] ioctl(4, LOOP_SET_FD, 3 [pid 5181] <... close resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5187] <... write resumed>) = 524288 [pid 5186] <... ioctl resumed>) = 0 [pid 5184] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5181] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5182] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5182] sync( [pid 5181] <... futex resumed>) = 1 [pid 5179] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] munmap(0x7f92368d1000, 138412032 [pid 5184] <... chdir resumed>) = 0 [pid 5187] <... munmap resumed>) = 0 [pid 5184] ioctl(4, LOOP_CLR_FD [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5184] <... ioctl resumed>) = 0 [pid 5184] close(4 [pid 5187] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5184] <... close resumed>) = 0 [pid 5181] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] <... futex resumed>) = 0 [pid 5179] <... futex resumed>) = 0 [pid 5060] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... openat resumed>) = 4 [pid 5184] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5180] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5181] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5184] <... futex resumed>) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5178] <... futex resumed>) = 0 [pid 5180] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5181] <... mknod resumed>) = 0 [pid 5181] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5181] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5180] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] close(3 [pid 5184] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5178] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... close resumed>) = 0 [pid 5181] <... open resumed>) = 4 [pid 5178] <... futex resumed>) = 0 [pid 5186] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5178] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... mknod resumed>) = 0 [pid 5186] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5181] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5181] sync( [pid 5180] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5187] <... ioctl resumed>) = 0 [pid 5184] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5178] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] close(3 [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5178] <... futex resumed>) = 0 [pid 5187] <... close resumed>) = 0 [pid 5184] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5178] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5187] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... mkdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5186] <... mount resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5186] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5187] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5186] <... openat resumed>) = 3 [pid 5060] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5186] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5186] <... chdir resumed>) = 0 [pid 5179] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5186] ioctl(4, LOOP_CLR_FD [pid 5060] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5186] <... ioctl resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5186] close(4) = 0 [pid 5060] newfstatat(4, "", [pid 5186] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5186] <... futex resumed>) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5186] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5183] <... futex resumed>) = 0 [pid 5186] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5183] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [ 60.705794][ T5186] loop2: detected capacity change from 0 to 1024 [ 60.728084][ T5187] loop4: detected capacity change from 0 to 1024 [pid 5060] getdents64(4, [pid 5186] <... mknod resumed>) = 0 [pid 5184] <... open resumed>) = 4 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5187] <... mount resumed>) = 0 [pid 5184] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5186] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5060] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5186] <... futex resumed>) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5182] <... sync resumed>) = 0 [pid 5184] <... futex resumed>) = 1 [pid 5187] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5186] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5184] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... sync resumed>) = 0 [pid 5180] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5178] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5186] <... open resumed>) = 4 [pid 5183] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = 0 [pid 5181] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] exit_group(0 [pid 5178] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5186] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... futex resumed>) = 0 [pid 5183] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] <... futex resumed>) = ? [pid 5180] <... exit_group resumed>) = ? [pid 5178] <... futex resumed>) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] <... chdir resumed>) = 0 [pid 5186] <... futex resumed>) = 0 [pid 5184] sync( [pid 5183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5178] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] sync( [pid 5183] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] +++ exited with 0 +++ [pid 5180] +++ exited with 0 +++ [pid 5179] exit_group(0 [pid 5060] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5187] ioctl(4, LOOP_CLR_FD [pid 5183] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = ? [pid 5179] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5187] <... ioctl resumed>) = 0 [pid 5183] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] +++ exited with 0 +++ [pid 5179] +++ exited with 0 +++ [pid 5060] unlink("./9/binderfs" [pid 5187] close(4) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5187] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5058] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... futex resumed>) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5187] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5187] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5185] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] rmdir("./9" [pid 5058] <... openat resumed>) = 3 [pid 5056] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... rmdir resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5187] <... mknod resumed>) = 0 [pid 5060] mkdir("./10", 0777 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5187] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5058] getdents64(3, [pid 5187] <... futex resumed>) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5185] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5185] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5185] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] close(3) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5188 attached [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5188 [pid 5188] set_robust_list(0x555555d616a0, 24 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5056] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] <... open resumed>) = 4 [pid 5188] chdir("./10") = 0 [pid 5187] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] <... futex resumed>) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5178] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5188] <... prctl resumed>) = 0 [pid 5187] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] <... sync resumed>) = 0 [pid 5185] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... sync resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] <... futex resumed>) = 0 [pid 5184] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] sync( [pid 5186] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = 0 [pid 5056] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5184] <... futex resumed>) = 0 [pid 5178] exit_group(0 [pid 5183] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5178] <... exit_group resumed>) = ? [pid 5188] setpgid(0, 0 [pid 5186] <... futex resumed>) = 0 [pid 5183] exit_group(0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... setpgid resumed>) = 0 [pid 5183] <... exit_group resumed>) = ? [pid 5058] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5186] +++ exited with 0 +++ [pid 5184] +++ exited with 0 +++ [pid 5178] +++ exited with 0 +++ [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5183] +++ exited with 0 +++ [pid 5058] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] <... openat resumed>) = 4 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] <... openat resumed>) = 3 [pid 5058] newfstatat(4, "", [pid 5056] <... openat resumed>) = 4 [pid 5055] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] write(3, "1000", 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] getdents64(4, [pid 5057] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] <... write resumed>) = 4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 3 [pid 5188] close(3 [pid 5058] getdents64(4, [pid 5057] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(3, "", [pid 5188] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5056] newfstatat(4, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5058] close(4 [pid 5057] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5056] getdents64(4, [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5188] <... symlink resumed>) = 0 [pid 5187] <... sync resumed>) = 0 [pid 5058] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] getdents64(3, [pid 5056] getdents64(4, [pid 5055] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5187] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5187] <... futex resumed>) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] close(4 [pid 5187] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] exit_group(0 [pid 5058] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5188] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... futex resumed>) = ? [pid 5185] <... exit_group resumed>) = ? [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5188] <... futex resumed>) = 0 [pid 5187] +++ exited with 0 +++ [pid 5058] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5188] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5188] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] unlink("./9/binderfs" [pid 5056] <... rmdir resumed>) = 0 [pid 5188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5185] +++ exited with 0 +++ [pid 5056] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] <... mmap resumed>) = 0x7f923ecd1000 [pid 5188] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5188] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5058] getdents64(3, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5188] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] close(3 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] unlink("./9/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... close resumed>) = 0 [pid 5057] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5189 attached [pid 5059] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] rmdir("./9" [pid 5056] getdents64(3, [pid 5189] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5188] <... clone3 resumed> => {parent_tid=[5189]}, 88) = 5189 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5189] <... rseq resumed>) = 0 [pid 5188] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5189] set_robust_list(0x7f923ecf19a0, 24 [pid 5188] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] mkdir("./10", 0777 [pid 5056] close(3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5056] <... close resumed>) = 0 [pid 5189] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5189] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] rmdir("./9" [pid 5189] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... openat resumed>) = 4 [pid 5189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5188] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5189] memfd_create("syzkaller", 0 [pid 5188] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] mkdir("./10", 0777 [pid 5055] newfstatat(4, "", [pid 5189] <... memfd_create resumed>) = 3 [pid 5188] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... openat resumed>) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5189] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] getdents64(4, [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5189] <... write resumed>) = 524288 [pid 5059] <... umount2 resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(4, [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(3 [pid 5057] <... openat resumed>) = 4 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] close(4) = 0 [pid 5055] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5055] unlink("./9/binderfs" [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5056] close(3 [pid 5055] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] close(3) = 0 [pid 5057] getdents64(4, [pid 5055] rmdir("./9" [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5190 attached [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5191 [pid 5057] getdents64(4, [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5190 [pid 5055] mkdir("./10", 0777./strace-static-x86_64: Process 5191 attached [pid 5189] munmap(0x7f92368d1000, 138412032 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5191] set_robust_list(0x555555d616a0, 24 [pid 5057] close(4 [pid 5190] set_robust_list(0x555555d616a0, 24 [pid 5057] <... close resumed>) = 0 [pid 5189] <... munmap resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5190] <... set_robust_list resumed>) = 0 [pid 5057] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5190] chdir("./10" [pid 5055] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5191] chdir("./10" [pid 5190] <... chdir resumed>) = 0 [pid 5189] <... ioctl resumed>) = 0 [pid 5059] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5190] setpgid(0, 0 [pid 5057] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5190] <... setpgid resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5189] close(3 [pid 5057] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5055] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... close resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5191] <... chdir resumed>) = 0 [pid 5190] <... openat resumed>) = 3 [pid 5189] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] write(3, "1000", 4 [pid 5191] <... prctl resumed>) = 0 [pid 5190] <... write resumed>) = 4 [pid 5057] unlink("./9/binderfs" [pid 5191] setpgid(0, 0) = 0 [pid 5190] close(3 [pid 5189] <... mkdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] umount2("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, [pid 5055] close(3 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] <... close resumed>) = 0 [pid 5189] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5190] symlink("/dev/binderfs", "./binderfs" [pid 5057] close(3 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5191] write(3, "1000", 4 [pid 5190] <... symlink resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... close resumed>) = 0 [pid 5191] <... write resumed>) = 4 [pid 5190] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 4 [pid 5057] rmdir("./9"./strace-static-x86_64: Process 5192 attached [pid 5191] close(3 [pid 5190] <... futex resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5192] set_robust_list(0x555555d616a0, 24 [pid 5191] <... close resumed>) = 0 [pid 5190] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] newfstatat(4, "", [pid 5057] mkdir("./10", 0777 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5192 [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs" [pid 5190] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5192] chdir("./10" [pid 5191] <... symlink resumed>) = 0 [pid 5190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] getdents64(4, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5192] <... chdir resumed>) = 0 [pid 5191] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] <... mount resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... openat resumed>) = 3 [pid 5191] <... futex resumed>) = 0 [pid 5190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5189] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5190] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] getdents64(4, [pid 5192] <... prctl resumed>) = 0 [pid 5191] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5189] <... openat resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5192] setpgid(0, 0 [pid 5191] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5190] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5189] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] close(4 [pid 5057] close(3 [pid 5192] <... setpgid resumed>) = 0 [pid 5191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] <... chdir resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5190] <... mprotect resumed>) = 0 [pid 5189] ioctl(4, LOOP_CLR_FD [pid 5059] rmdir("./9/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5192] <... openat resumed>) = 3 [pid 5191] <... mmap resumed>) = 0x7f923ecd1000 [pid 5190] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5189] <... ioctl resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5192] write(3, "1000", 4 [pid 5191] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5189] close(4 [pid 5059] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5193 attached [pid 5192] <... write resumed>) = 4 [pid 5191] <... mprotect resumed>) = 0 [pid 5189] <... close resumed>) = 0 [pid 5193] set_robust_list(0x555555d616a0, 24 [pid 5192] close(3 [pid 5190] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5189] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] <... set_robust_list resumed>) = 0 [pid 5192] <... close resumed>) = 0 [pid 5190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5189] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] chdir("./10" [pid 5192] symlink("/dev/binderfs", "./binderfs" [pid 5189] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5188] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./9/binderfs", ./strace-static-x86_64: Process 5194 attached [pid 5193] <... chdir resumed>) = 0 [pid 5192] <... symlink resumed>) = 0 [pid 5191] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5190] <... clone3 resumed> => {parent_tid=[5194]}, 88) = 5194 [pid 5188] <... futex resumed>) = 0 [pid 5194] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5192] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... rt_sigprocmask resumed>[], 8) = 0 [ 61.018787][ T5189] loop5: detected capacity change from 0 to 1024 [pid 5190] rt_sigprocmask(SIG_SETMASK, [], [pid 5188] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5193 [pid 5194] <... rseq resumed>) = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5192] <... futex resumed>) = 0 [pid 5191] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] <... mknod resumed>) = 0 [pid 5059] unlink("./9/binderfs"./strace-static-x86_64: Process 5195 attached [pid 5194] set_robust_list(0x7f923ecf19a0, 24 [pid 5193] <... prctl resumed>) = 0 [pid 5192] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5189] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5193] setpgid(0, 0 [pid 5192] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5191] <... clone3 resumed> => {parent_tid=[5195]}, 88) = 5195 [pid 5190] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5195] <... rseq resumed>) = 0 [pid 5194] rt_sigprocmask(SIG_SETMASK, [], [pid 5193] <... setpgid resumed>) = 0 [pid 5192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5191] rt_sigprocmask(SIG_SETMASK, [], [pid 5190] <... futex resumed>) = 0 [pid 5189] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5188] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5195] set_robust_list(0x7f923ecf19a0, 24 [pid 5194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5192] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5190] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5189] <... open resumed>) = 4 [pid 5188] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5195] <... set_robust_list resumed>) = 0 [pid 5194] memfd_create("syzkaller", 0 [pid 5193] <... openat resumed>) = 3 [pid 5192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5191] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] close(3 [pid 5195] rt_sigprocmask(SIG_SETMASK, [], [pid 5194] <... memfd_create resumed>) = 3 [pid 5193] write(3, "1000", 4 [pid 5192] <... mmap resumed>) = 0x7f923ecd1000 [pid 5191] <... futex resumed>) = 0 [pid 5189] <... futex resumed>) = 0 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] <... close resumed>) = 0 [pid 5195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] <... write resumed>) = 4 [pid 5192] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5191] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5189] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] rmdir("./9" [pid 5195] memfd_create("syzkaller", 0 [pid 5194] <... mmap resumed>) = 0x7f92368d1000 [pid 5193] close(3 [pid 5192] <... mprotect resumed>) = 0 [pid 5189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5188] <... futex resumed>) = 0 [pid 5195] <... memfd_create resumed>) = 3 [pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5193] <... close resumed>) = 0 [pid 5192] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5189] sync( [pid 5188] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... rmdir resumed>) = 0 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5193] symlink("/dev/binderfs", "./binderfs" [pid 5192] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] mkdir("./10", 0777 [pid 5195] <... mmap resumed>) = 0x7f92368d1000 [pid 5192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5196 attached [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5193] <... symlink resumed>) = 0 [pid 5192] <... clone3 resumed> => {parent_tid=[5196]}, 88) = 5196 [pid 5196] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5194] <... write resumed>) = 524288 [pid 5193] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... mkdir resumed>) = 0 [pid 5196] set_robust_list(0x7f923ecf19a0, 24 [pid 5193] <... futex resumed>) = 0 [pid 5192] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5196] <... set_robust_list resumed>) = 0 [pid 5193] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5192] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5196] rt_sigprocmask(SIG_SETMASK, [], [pid 5193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5192] <... futex resumed>) = 0 [pid 5196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5192] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5196] memfd_create("syzkaller", 0 [pid 5193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5059] <... openat resumed>) = 3 [pid 5193] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5193] <... mprotect resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] close(3 [pid 5193] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... close resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5194] munmap(0x7f92368d1000, 138412032./strace-static-x86_64: Process 5197 attached [pid 5196] <... memfd_create resumed>) = 3 [pid 5195] <... write resumed>) = 524288 [pid 5193] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5189] <... sync resumed>) = 0 [pid 5197] set_robust_list(0x555555d616a0, 24 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5195] munmap(0x7f92368d1000, 138412032 [pid 5194] <... munmap resumed>) = 0 [pid 5193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5189] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5197 ./strace-static-x86_64: Process 5198 attached [pid 5197] <... set_robust_list resumed>) = 0 [pid 5196] <... mmap resumed>) = 0x7f92368d1000 [pid 5194] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5189] <... futex resumed>) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5198] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5197] chdir("./10" [pid 5195] <... munmap resumed>) = 0 [pid 5194] <... openat resumed>) = 4 [pid 5193] <... clone3 resumed> => {parent_tid=[5198]}, 88) = 5198 [pid 5189] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] exit_group(0 [pid 5198] <... rseq resumed>) = 0 [pid 5197] <... chdir resumed>) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5194] ioctl(4, LOOP_SET_FD, 3 [pid 5193] rt_sigprocmask(SIG_SETMASK, [], [pid 5189] <... futex resumed>) = ? [pid 5188] <... exit_group resumed>) = ? [pid 5198] set_robust_list(0x7f923ecf19a0, 24 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5195] <... openat resumed>) = 4 [pid 5193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] +++ exited with 0 +++ [pid 5188] +++ exited with 0 +++ [pid 5197] <... prctl resumed>) = 0 [pid 5195] ioctl(4, LOOP_SET_FD, 3 [pid 5193] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... set_robust_list resumed>) = 0 [pid 5197] setpgid(0, 0 [pid 5196] <... write resumed>) = 524288 [pid 5194] <... ioctl resumed>) = 0 [pid 5193] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5198] memfd_create("syzkaller", 0 [pid 5197] <... setpgid resumed>) = 0 [pid 5195] <... ioctl resumed>) = 0 [pid 5193] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5196] munmap(0x7f92368d1000, 138412032 [pid 5198] <... memfd_create resumed>) = 3 [pid 5194] close(3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5198] <... mmap resumed>) = 0x7f92368d1000 [pid 5196] <... munmap resumed>) = 0 [pid 5195] close(3 [pid 5194] <... close resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5197] <... openat resumed>) = 3 [pid 5197] write(3, "1000", 4 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5195] <... close resumed>) = 0 [pid 5194] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] newfstatat(3, "", [pid 5198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5197] <... write resumed>) = 4 [pid 5196] <... openat resumed>) = 4 [pid 5195] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5194] <... mkdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5197] close(3 [pid 5196] ioctl(4, LOOP_SET_FD, 3 [pid 5195] <... mkdir resumed>) = 0 [pid 5194] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] getdents64(3, [pid 5198] <... write resumed>) = 524288 [pid 5197] <... close resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5198] munmap(0x7f92368d1000, 138412032 [pid 5197] symlink("/dev/binderfs", "./binderfs" [pid 5196] <... ioctl resumed>) = 0 [pid 5195] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5194] <... mount resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5197] <... symlink resumed>) = 0 [pid 5196] close(3 [pid 5194] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... close resumed>) = 0 [pid 5194] <... openat resumed>) = 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5198] <... munmap resumed>) = 0 [pid 5197] <... futex resumed>) = 0 [pid 5196] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5194] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5197] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5196] <... mkdir resumed>) = 0 [pid 5194] <... chdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5198] <... openat resumed>) = 4 [pid 5197] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5194] ioctl(4, LOOP_CLR_FD [pid 5198] ioctl(4, LOOP_SET_FD, 3 [pid 5197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5194] <... ioctl resumed>) = 0 [pid 5060] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5196] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5194] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5194] <... close resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5197] <... mmap resumed>) = 0x7f923ecd1000 [pid 5194] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5197] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5194] <... futex resumed>) = 1 [pid 5060] newfstatat(4, "", [pid 5197] <... mprotect resumed>) = 0 [pid 5194] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5197] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] getdents64(4, [pid 5197] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] getdents64(4, ./strace-static-x86_64: Process 5199 attached 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5199] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5197] <... clone3 resumed> => {parent_tid=[5199]}, 88) = 5199 [pid 5060] close(4 [pid 5199] <... rseq resumed>) = 0 [pid 5197] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... close resumed>) = 0 [pid 5199] set_robust_list(0x7f923ecf19a0, 24 [pid 5197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5199] <... set_robust_list resumed>) = 0 [pid 5197] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = 0 [pid 5060] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5199] rt_sigprocmask(SIG_SETMASK, [], [pid 5197] <... futex resumed>) = 0 [pid 5199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5197] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] <... rmdir resumed>) = 0 [pid 5199] memfd_create("syzkaller", 0) = 3 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5199] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5190] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5196] <... mount resumed>) = 0 [pid 5195] <... mount resumed>) = 0 [pid 5194] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5190] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] unlink("./10/binderfs" [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5196] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5195] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... unlink resumed>) = 0 [pid 5195] <... openat resumed>) = 3 [pid 5198] <... ioctl resumed>) = 0 [pid 5195] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5198] close(3 [pid 5196] <... openat resumed>) = 3 [pid 5195] <... chdir resumed>) = 0 [pid 5198] <... close resumed>) = 0 [pid 5196] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5195] ioctl(4, LOOP_CLR_FD [pid 5194] <... mknod resumed>) = 0 [pid 5060] getdents64(3, [pid 5198] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5196] <... chdir resumed>) = 0 [pid 5195] <... ioctl resumed>) = 0 [pid 5194] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5198] <... mkdir resumed>) = 0 [pid 5196] ioctl(4, LOOP_CLR_FD [pid 5195] close(4 [pid 5194] <... futex resumed>) = 1 [pid 5190] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5190] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... ioctl resumed>) = 0 [pid 5190] <... futex resumed>) = 0 [pid 5190] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] close(4 [pid 5060] <... close resumed>) = 0 [pid 5196] <... close resumed>) = 0 [pid 5060] rmdir("./10" [pid 5196] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] <... rmdir resumed>) = 0 [pid 5198] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5196] <... futex resumed>) = 1 [pid 5195] <... close resumed>) = 0 [pid 5192] <... futex resumed>) = 0 [pid 5196] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5192] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5192] <... futex resumed>) = 0 [ 61.157617][ T5194] loop1: detected capacity change from 0 to 1024 [ 61.162786][ T5195] loop3: detected capacity change from 0 to 1024 [ 61.180210][ T5196] loop0: detected capacity change from 0 to 1024 [ 61.201088][ T5198] loop2: detected capacity change from 0 to 1024 [pid 5060] mkdir("./11", 0777 [pid 5196] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5195] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... mkdir resumed>) = 0 [pid 5199] <... write resumed>) = 524288 [pid 5198] <... mount resumed>) = 0 [pid 5195] <... futex resumed>) = 1 [pid 5194] <... open resumed>) = 4 [pid 5191] <... futex resumed>) = 0 [pid 5194] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5190] <... futex resumed>) = 0 [pid 5190] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5190] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5199] munmap(0x7f92368d1000, 138412032) = 0 [pid 5198] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5195] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5191] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] <... openat resumed>) = 3 [pid 5191] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5199] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5198] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5194] sync( [pid 5191] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5198] <... chdir resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5198] ioctl(4, LOOP_CLR_FD [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5198] <... ioctl resumed>) = 0 [pid 5060] close(3 [pid 5198] close(4 [pid 5060] <... close resumed>) = 0 [pid 5198] <... close resumed>) = 0 [pid 5196] <... mknod resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5199] <... openat resumed>) = 4 [pid 5198] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] ioctl(4, LOOP_SET_FD, 3 [pid 5198] <... futex resumed>) = 1 [pid 5196] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5200 ./strace-static-x86_64: Process 5200 attached [pid 5198] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] set_robust_list(0x555555d616a0, 24 [pid 5198] <... futex resumed>) = 0 [pid 5193] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5198] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5193] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... set_robust_list resumed>) = 0 [pid 5200] chdir("./11" [pid 5196] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5195] <... mknod resumed>) = 0 [pid 5196] <... open resumed>) = 4 [pid 5196] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] <... chdir resumed>) = 0 [pid 5199] <... ioctl resumed>) = 0 [pid 5198] <... mknod resumed>) = 0 [pid 5195] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5195] <... futex resumed>) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5200] <... prctl resumed>) = 0 [pid 5195] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] <... futex resumed>) = 0 [pid 5200] setpgid(0, 0 [pid 5195] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5191] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... setpgid resumed>) = 0 [pid 5196] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5192] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5192] <... futex resumed>) = 0 [pid 5192] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5199] close(3 [pid 5196] sync( [pid 5199] <... close resumed>) = 0 [pid 5198] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... open resumed>) = 4 [pid 5199] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5198] <... futex resumed>) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5198] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5193] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] <... openat resumed>) = 3 [pid 5199] <... mkdir resumed>) = 0 [pid 5195] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 0 [pid 5200] write(3, "1000", 4 [pid 5199] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5195] <... futex resumed>) = 1 [pid 5193] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5191] <... futex resumed>) = 0 [pid 5200] <... write resumed>) = 4 [pid 5195] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] close(3 [pid 5195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] <... futex resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5195] sync( [pid 5191] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] symlink("/dev/binderfs", "./binderfs" [pid 5199] <... mount resumed>) = 0 [pid 5198] <... open resumed>) = 4 [pid 5194] <... sync resumed>) = 0 [ 61.267158][ T5199] loop4: detected capacity change from 0 to 1024 [pid 5199] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5198] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] <... symlink resumed>) = 0 [pid 5199] <... openat resumed>) = 3 [pid 5198] <... futex resumed>) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5193] <... futex resumed>) = 0 [pid 5199] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5200] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5194] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] exit_group(0 [pid 5200] <... futex resumed>) = 0 [pid 5199] <... chdir resumed>) = 0 [pid 5198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5194] <... futex resumed>) = ? [pid 5193] <... futex resumed>) = 0 [pid 5190] <... exit_group resumed>) = ? [pid 5200] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5199] ioctl(4, LOOP_CLR_FD [pid 5198] sync( [pid 5196] <... sync resumed>) = 0 [pid 5195] <... sync resumed>) = 0 [pid 5194] +++ exited with 0 +++ [pid 5193] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] +++ exited with 0 +++ [pid 5200] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5199] <... ioctl resumed>) = 0 [pid 5196] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5199] close(4 [pid 5196] <... futex resumed>) = 1 [pid 5195] <... futex resumed>) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5191] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5199] <... close resumed>) = 0 [pid 5196] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5192] exit_group(0 [pid 5191] exit_group(0 [pid 5056] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5199] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... futex resumed>) = ? [pid 5195] <... futex resumed>) = ? [pid 5192] <... exit_group resumed>) = ? [pid 5191] <... exit_group resumed>) = ? [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5199] <... futex resumed>) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5196] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ [pid 5192] +++ exited with 0 +++ [pid 5191] +++ exited with 0 +++ [pid 5056] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5200] <... mmap resumed>) = 0x7f923ecd1000 [pid 5199] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5197] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5200] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5198] <... sync resumed>) = 0 [pid 5197] <... futex resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5200] <... mprotect resumed>) = 0 [pid 5197] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5200] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5198] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] getdents64(3, [pid 5055] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5199] <... mknod resumed>) = 0 [pid 5198] <... futex resumed>) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5193] exit_group(0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5056] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5199] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... exit_group resumed>) = ? [pid 5058] <... restart_syscall resumed>) = 0 [pid 5055] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5201 attached [pid 5200] <... clone3 resumed> => {parent_tid=[5201]}, 88) = 5201 [pid 5199] <... futex resumed>) = 1 [pid 5198] +++ exited with 0 +++ [pid 5197] <... futex resumed>) = 0 [pid 5193] +++ exited with 0 +++ [pid 5055] newfstatat(3, "", [pid 5201] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5200] rt_sigprocmask(SIG_SETMASK, [], [pid 5199] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5201] <... rseq resumed>) = 0 [pid 5200] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5058] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] <... umount2 resumed>) = 0 [pid 5201] set_robust_list(0x7f923ecf19a0, 24 [pid 5200] <... futex resumed>) = 0 [pid 5197] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5201] <... set_robust_list resumed>) = 0 [pid 5200] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5201] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5201] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 [pid 5055] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(3, "", [pid 5201] memfd_create("syzkaller", 0 [pid 5199] <... open resumed>) = 4 [pid 5058] newfstatat(3, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5201] <... memfd_create resumed>) = 3 [pid 5199] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] <... mmap resumed>) = 0x7f92368d1000 [pid 5199] <... futex resumed>) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5058] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5199] sync( [pid 5197] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5056] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] unlink("./10/binderfs" [pid 5055] <... openat resumed>) = 4 [pid 5056] <... unlink resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, [pid 5056] close(3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(4, [pid 5056] rmdir("./10" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5056] mkdir("./11", 0777 [pid 5055] <... close resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5056] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] unlink("./10/binderfs" [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... unlink resumed>) = 0 [pid 5055] getdents64(3, ./strace-static-x86_64: Process 5202 attached [pid 5201] <... write resumed>) = 524288 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5202] set_robust_list(0x555555d616a0, 24 [pid 5057] <... umount2 resumed>) = 0 [pid 5055] close(3 [pid 5201] munmap(0x7f92368d1000, 138412032 [pid 5199] <... sync resumed>) = 0 [pid 5058] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5202 [pid 5201] <... munmap resumed>) = 0 [pid 5197] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5201] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5199] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5201] <... openat resumed>) = 4 [pid 5058] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5202] <... set_robust_list resumed>) = 0 [pid 5199] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... close resumed>) = 0 [pid 5202] chdir("./11" [pid 5199] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] rmdir("./10") = 0 [pid 5202] <... chdir resumed>) = 0 [pid 5055] mkdir("./11", 0777) = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5202] <... prctl resumed>) = 0 [pid 5197] exit_group(0 [pid 5055] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 4 [pid 5058] <... openat resumed>) = 4 [pid 5202] setpgid(0, 0 [pid 5199] <... futex resumed>) = ? [pid 5197] <... exit_group resumed>) = ? [pid 5058] newfstatat(4, "", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5202] <... setpgid resumed>) = 0 [pid 5201] <... ioctl resumed>) = 0 [pid 5199] +++ exited with 0 +++ [pid 5197] +++ exited with 0 +++ [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] newfstatat(4, "", [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] close(3 [pid 5058] getdents64(4, [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5202] <... openat resumed>) = 3 [pid 5201] <... close resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] close(3 [pid 5202] write(3, "1000", 4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... close resumed>) = 0 [pid 5202] <... write resumed>) = 4 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5202] close(3 [pid 5058] getdents64(4, [pid 5202] <... close resumed>) = 0 [pid 5201] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5202] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 5203 attached [pid 5202] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5203 [pid 5203] set_robust_list(0x555555d616a0, 24 [pid 5202] <... futex resumed>) = 0 [pid 5059] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5203] <... set_robust_list resumed>) = 0 [pid 5202] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5203] chdir("./11" [pid 5202] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5203] <... chdir resumed>) = 0 [pid 5202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5201] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] close(4 [pid 5057] getdents64(4, [pid 5201] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] newfstatat(3, "", [pid 5058] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] getdents64(4, [pid 5203] <... prctl resumed>) = 0 [pid 5202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5203] setpgid(0, 0 [pid 5059] getdents64(3, [pid 5058] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(4 [pid 5202] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5057] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5203] <... setpgid resumed>) = 0 [pid 5202] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5058] unlink("./10/binderfs" [pid 5057] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] <... mprotect resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5202] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] getdents64(3, [pid 5057] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5203] <... openat resumed>) = 3 [pid 5202] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] close(3 [pid 5057] unlink("./10/binderfs" [pid 5203] write(3, "1000", 4 [pid 5202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... close resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5058] rmdir("./10" [pid 5057] getdents64(3, [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] mkdir("./11", 0777 [pid 5057] close(3 [pid 5202] <... clone3 resumed> => {parent_tid=[5204]}, 88) = 5204 [pid 5203] <... write resumed>) = 4 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5203] close(3 [pid 5202] rt_sigprocmask(SIG_SETMASK, [], [pid 5203] <... close resumed>) = 0 [pid 5202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs" [pid 5202] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] rmdir("./10"./strace-static-x86_64: Process 5204 attached [pid 5203] <... symlink resumed>) = 0 [pid 5202] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... rmdir resumed>) = 0 [pid 5204] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5202] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... openat resumed>) = 3 [pid 5057] mkdir("./11", 0777 [pid 5204] <... rseq resumed>) = 0 [pid 5204] set_robust_list(0x7f923ecf19a0, 24 [pid 5058] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] close(3) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5204] <... set_robust_list resumed>) = 0 [pid 5203] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5204] memfd_create("syzkaller", 0 [pid 5201] <... mount resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5201] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5204] <... memfd_create resumed>) = 3 [pid 5203] <... futex resumed>) = 0 [pid 5201] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5205 attached [pid 5201] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5205] set_robust_list(0x555555d616a0, 24 [ 61.495166][ T5201] loop5: detected capacity change from 0 to 1024 [pid 5203] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5201] <... chdir resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5205] <... set_robust_list resumed>) = 0 [pid 5203] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5201] ioctl(4, LOOP_CLR_FD [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5205 [pid 5057] close(3 [pid 5205] chdir("./11" [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5201] <... ioctl resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5205] <... chdir resumed>) = 0 [pid 5204] <... mmap resumed>) = 0x7f92368d1000 [pid 5203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5201] close(4 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5201] <... close resumed>) = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] <... mmap resumed>) = 0x7f923ecd1000 [pid 5201] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5205] <... prctl resumed>) = 0 [pid 5201] <... futex resumed>) = 1 [pid 5205] setpgid(0, 0 [pid 5201] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] <... mprotect resumed>) = 0 [pid 5205] <... setpgid resumed>) = 0 [pid 5200] <... futex resumed>) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... openat resumed>) = 3 [pid 5201] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = 1 [pid 5205] write(3, "1000", 4 [pid 5201] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5200] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5205] <... write resumed>) = 4 [pid 5205] close(3 [pid 5203] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5205] <... close resumed>) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5203] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5206 [pid 5201] <... mknod resumed>) = 0 [pid 5203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5206 attached [pid 5205] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5207 attached [pid 5203] <... clone3 resumed> => {parent_tid=[5207]}, 88) = 5207 [pid 5059] newfstatat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5207] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5203] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5207] <... rseq resumed>) = 0 [pid 5203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] umount2("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5207] set_robust_list(0x7f923ecf19a0, 24 [pid 5203] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... set_robust_list resumed>) = 0 [pid 5206] set_robust_list(0x555555d616a0, 24 [pid 5205] <... futex resumed>) = 0 [pid 5203] <... futex resumed>) = 0 [pid 5201] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5207] rt_sigprocmask(SIG_SETMASK, [], [pid 5206] <... set_robust_list resumed>) = 0 [pid 5205] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5203] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5207] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5206] chdir("./11" [pid 5205] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5201] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] memfd_create("syzkaller", 0 [pid 5206] <... chdir resumed>) = 0 [pid 5205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5200] <... futex resumed>) = 0 [pid 5207] <... memfd_create resumed>) = 3 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5201] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5200] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5206] <... prctl resumed>) = 0 [pid 5205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... openat resumed>) = 4 [pid 5207] <... mmap resumed>) = 0x7f92368d1000 [pid 5206] setpgid(0, 0 [pid 5205] <... mmap resumed>) = 0x7f923ecd1000 [pid 5201] <... open resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5206] <... setpgid resumed>) = 0 [pid 5205] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5201] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] <... mprotect resumed>) = 0 [pid 5200] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5206] <... openat resumed>) = 3 [pid 5205] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5201] <... futex resumed>) = 1 [pid 5200] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(4, [pid 5206] write(3, "1000", 4 [pid 5205] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5204] <... write resumed>) = 524288 [pid 5201] sync( [pid 5200] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5206] <... write resumed>) = 4 [pid 5205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5204] munmap(0x7f92368d1000, 138412032 [pid 5200] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5208 attached [pid 5206] close(3 [pid 5204] <... munmap resumed>) = 0 [pid 5059] getdents64(4, [pid 5208] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5206] <... close resumed>) = 0 [pid 5205] <... clone3 resumed> => {parent_tid=[5208]}, 88) = 5208 [pid 5204] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5208] <... rseq resumed>) = 0 [pid 5207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5206] symlink("/dev/binderfs", "./binderfs" [pid 5205] rt_sigprocmask(SIG_SETMASK, [], [pid 5208] set_robust_list(0x7f923ecf19a0, 24 [pid 5205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(4 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5205] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] rt_sigprocmask(SIG_SETMASK, [], [pid 5205] <... futex resumed>) = 0 [pid 5208] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5206] <... symlink resumed>) = 0 [pid 5205] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5208] memfd_create("syzkaller", 0 [pid 5206] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... openat resumed>) = 4 [pid 5059] <... close resumed>) = 0 [pid 5204] ioctl(4, LOOP_SET_FD, 3 [pid 5059] rmdir("./10/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5206] <... futex resumed>) = 0 [pid 5206] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5208] <... memfd_create resumed>) = 3 [pid 5206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5208] <... mmap resumed>) = 0x7f92368d1000 [pid 5206] <... mmap resumed>) = 0x7f923ecd1000 [pid 5206] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5206] <... mprotect resumed>) = 0 [pid 5206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} => {parent_tid=[5209]}, 88) = 5209 [pid 5059] <... rmdir resumed>) = 0 [pid 5206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5059] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5209 attached [pid 5208] <... write resumed>) = 524288 [pid 5207] <... write resumed>) = 524288 [pid 5204] <... ioctl resumed>) = 0 [pid 5201] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5209] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5208] munmap(0x7f92368d1000, 138412032 [pid 5206] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] close(3 [pid 5201] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5207] munmap(0x7f92368d1000, 138412032 [pid 5209] <... rseq resumed>) = 0 [pid 5208] <... munmap resumed>) = 0 [pid 5206] <... futex resumed>) = 0 [pid 5204] <... close resumed>) = 0 [pid 5201] <... futex resumed>) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5209] set_robust_list(0x7f923ecf19a0, 24 [pid 5207] <... munmap resumed>) = 0 [pid 5206] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5204] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5201] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] exit_group(0 [pid 5059] unlink("./10/binderfs" [pid 5209] <... set_robust_list resumed>) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5204] <... mkdir resumed>) = 0 [pid 5201] <... futex resumed>) = ? [pid 5200] <... exit_group resumed>) = ? [pid 5209] rt_sigprocmask(SIG_SETMASK, [], [pid 5208] <... openat resumed>) = 4 [pid 5201] +++ exited with 0 +++ [pid 5200] +++ exited with 0 +++ [pid 5059] <... unlink resumed>) = 0 [pid 5209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5208] ioctl(4, LOOP_SET_FD, 3 [pid 5207] <... openat resumed>) = 4 [pid 5204] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5209] memfd_create("syzkaller", 0 [pid 5207] ioctl(4, LOOP_SET_FD, 3 [pid 5059] getdents64(3, [pid 5209] <... memfd_create resumed>) = 3 [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] close(3 [pid 5208] <... ioctl resumed>) = 0 [pid 5204] <... mount resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5060] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] rmdir("./10" [pid 5208] close(3 [pid 5207] <... ioctl resumed>) = 0 [pid 5204] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... rmdir resumed>) = 0 [pid 5208] <... close resumed>) = 0 [pid 5207] close(3 [pid 5204] <... openat resumed>) = 3 [pid 5060] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] mkdir("./11", 0777 [pid 5208] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5204] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... openat resumed>) = 3 [pid 5059] <... mkdir resumed>) = 0 [pid 5208] <... mkdir resumed>) = 0 [pid 5207] <... close resumed>) = 0 [pid 5204] <... chdir resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5208] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5209] <... write resumed>) = 524288 [pid 5207] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5204] ioctl(4, LOOP_CLR_FD [pid 5060] getdents64(3, [pid 5059] <... openat resumed>) = 3 [pid 5207] <... mkdir resumed>) = 0 [pid 5204] <... ioctl resumed>) = 0 [ 61.605399][ T5204] loop1: detected capacity change from 0 to 1024 [ 61.633455][ T5208] loop3: detected capacity change from 0 to 1024 [ 61.641037][ T5207] loop0: detected capacity change from 0 to 1024 [pid 5208] <... mount resumed>) = 0 [pid 5207] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5204] close(4 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5208] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5204] <... close resumed>) = 0 [pid 5208] <... openat resumed>) = 3 [pid 5204] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5208] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5204] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5202] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] <... chdir resumed>) = 0 [pid 5204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5202] <... futex resumed>) = 0 [pid 5208] ioctl(4, LOOP_CLR_FD [pid 5204] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5202] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... ioctl resumed>) = 0 [pid 5208] close(4) = 0 [pid 5208] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5208] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] munmap(0x7f92368d1000, 138412032 [pid 5208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5204] <... mknod resumed>) = 0 [pid 5060] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] close(3 [pid 5209] <... munmap resumed>) = 0 [pid 5205] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5208] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5207] <... mount resumed>) = 0 [pid 5204] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5209] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5207] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5207] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5204] <... futex resumed>) = 1 [pid 5202] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5210 attached [pid 5209] <... openat resumed>) = 4 [pid 5208] <... mknod resumed>) = 0 [pid 5207] <... chdir resumed>) = 0 [pid 5204] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5202] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] set_robust_list(0x555555d616a0, 24 [pid 5209] ioctl(4, LOOP_SET_FD, 3 [pid 5202] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5210 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5207] ioctl(4, LOOP_CLR_FD [pid 5204] <... open resumed>) = 4 [pid 5202] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = 0 [pid 5207] <... ioctl resumed>) = 0 [pid 5208] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5208] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5207] close(4) = 0 [pid 5205] <... futex resumed>) = 0 [pid 5204] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5202] <... futex resumed>) = 0 [pid 5202] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5202] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] sync( [pid 5210] chdir("./11" [pid 5205] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5208] <... futex resumed>) = 0 [pid 5207] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] <... chdir resumed>) = 0 [pid 5208] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5207] <... futex resumed>) = 1 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5210] <... prctl resumed>) = 0 [pid 5209] <... ioctl resumed>) = 0 [pid 5208] <... open resumed>) = 4 [pid 5207] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5203] <... futex resumed>) = 0 [pid 5210] setpgid(0, 0 [pid 5209] close(3 [pid 5208] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5210] <... setpgid resumed>) = 0 [pid 5209] <... close resumed>) = 0 [pid 5208] <... futex resumed>) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5205] <... futex resumed>) = 0 [pid 5203] <... futex resumed>) = 1 [pid 5060] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5207] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5205] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] <... openat resumed>) = 3 [pid 5209] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5205] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5208] sync( [pid 5205] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 4 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, [pid 5210] write(3, "1000", 4 [pid 5209] <... mkdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5210] <... write resumed>) = 4 [pid 5060] getdents64(4, [pid 5210] close(3 [pid 5209] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5210] <... close resumed>) = 0 [pid 5207] <... mknod resumed>) = 0 [pid 5060] close(4 [pid 5210] symlink("/dev/binderfs", "./binderfs" [pid 5207] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5210] <... symlink resumed>) = 0 [pid 5207] <... futex resumed>) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5060] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5210] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5210] <... futex resumed>) = 0 [pid 5209] <... mount resumed>) = 0 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5203] <... futex resumed>) = 0 [pid 5210] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5209] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5203] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5210] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5207] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5209] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5209] <... chdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5210] <... mmap resumed>) = 0x7f923ecd1000 [pid 5210] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5209] ioctl(4, LOOP_CLR_FD [pid 5060] unlink("./11/binderfs" [pid 5210] <... mprotect resumed>) = 0 [pid 5209] <... ioctl resumed>) = 0 [pid 5207] <... open resumed>) = 4 [pid 5209] close(4 [pid 5060] <... unlink resumed>) = 0 [pid 5210] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5209] <... close resumed>) = 0 [pid 5208] <... sync resumed>) = 0 [pid 5207] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... sync resumed>) = 0 [pid 5210] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5209] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 1 [pid 5204] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] getdents64(3, [ 61.716234][ T5209] loop2: detected capacity change from 0 to 1024 [pid 5210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5209] <... futex resumed>) = 1 [pid 5208] <... futex resumed>) = 1 [pid 5207] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] <... futex resumed>) = 0 [pid 5205] <... futex resumed>) = 0 [pid 5204] <... futex resumed>) = 0 [pid 5203] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] exit_group(0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5211 attached [pid 5209] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5208] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] exit_group(0 [pid 5203] <... futex resumed>) = 0 [pid 5202] <... exit_group resumed>) = ? [pid 5060] close(3 [pid 5211] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5210] <... clone3 resumed> => {parent_tid=[5211]}, 88) = 5211 [pid 5208] <... futex resumed>) = ? [pid 5207] sync( [pid 5206] <... futex resumed>) = 0 [pid 5205] <... exit_group resumed>) = ? [pid 5203] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5211] <... rseq resumed>) = 0 [pid 5210] rt_sigprocmask(SIG_SETMASK, [], [pid 5206] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] +++ exited with 0 +++ [pid 5060] rmdir("./11" [pid 5211] set_robust_list(0x7f923ecf19a0, 24 [pid 5210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5209] <... mknod resumed>) = 0 [pid 5208] +++ exited with 0 +++ [pid 5205] +++ exited with 0 +++ [pid 5060] <... rmdir resumed>) = 0 [pid 5211] <... set_robust_list resumed>) = 0 [pid 5210] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] rt_sigprocmask(SIG_SETMASK, [], [pid 5210] <... futex resumed>) = 0 [pid 5209] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5210] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5209] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5060] mkdir("./12", 0777 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5202] +++ exited with 0 +++ [pid 5211] memfd_create("syzkaller", 0 [pid 5209] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} --- [pid 5211] <... memfd_create resumed>) = 3 [pid 5209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5206] <... futex resumed>) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5206] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5209] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5211] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5212 [pid 5209] <... open resumed>) = 4 [pid 5203] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5058] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", ./strace-static-x86_64: Process 5212 attached [pid 5211] <... write resumed>) = 524288 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5212] set_robust_list(0x555555d616a0, 24 [pid 5207] <... sync resumed>) = 0 [pid 5058] getdents64(3, [pid 5212] <... set_robust_list resumed>) = 0 [pid 5212] chdir("./12" [pid 5207] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5212] <... chdir resumed>) = 0 [pid 5209] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5058] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5207] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] <... prctl resumed>) = 0 [pid 5209] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5203] exit_group(0 [pid 5212] setpgid(0, 0 [pid 5209] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... exit_group resumed>) = ? [pid 5212] <... setpgid resumed>) = 0 [pid 5209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5207] <... futex resumed>) = ? [pid 5206] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5209] sync( [pid 5206] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... openat resumed>) = 3 [pid 5207] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ [pid 5058] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5212] write(3, "1000", 4 [pid 5211] munmap(0x7f92368d1000, 138412032 [pid 5058] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5212] <... write resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5212] close(3 [pid 5211] <... munmap resumed>) = 0 [pid 5212] <... close resumed>) = 0 [pid 5055] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] <... symlink resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5212] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... openat resumed>) = 4 [pid 5209] <... sync resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5212] <... futex resumed>) = 0 [pid 5211] ioctl(4, LOOP_SET_FD, 3 [pid 5209] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(3, "", [pid 5212] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5209] <... futex resumed>) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5212] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5209] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] exit_group(0 [pid 5209] <... futex resumed>) = ? [pid 5206] <... exit_group resumed>) = ? [pid 5055] getdents64(3, [pid 5209] +++ exited with 0 +++ [pid 5206] +++ exited with 0 +++ [pid 5058] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] newfstatat(4, "", [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5212] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5212] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] getdents64(4, [pid 5212] <... mprotect resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] getdents64(4, [pid 5056] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 4 [pid 5212] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] close(4) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5056] newfstatat(4, "", [pid 5055] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] newfstatat(3, "", [pid 5212] <... clone3 resumed> => {parent_tid=[5213]}, 88) = 5213 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, [pid 5055] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5213 attached [pid 5212] rt_sigprocmask(SIG_SETMASK, [], [pid 5211] <... ioctl resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5213] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5212] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5211] close(3 [pid 5058] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(4, [pid 5212] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... rseq resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5212] <... futex resumed>) = 0 [pid 5211] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5212] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] close(4 [pid 5055] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] set_robust_list(0x7f923ecf19a0, 24 [pid 5211] <... mkdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 4 [pid 5211] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(4, "", [pid 5213] <... set_robust_list resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5213] memfd_create("syzkaller", 0 [pid 5058] unlink("./11/binderfs" [pid 5057] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... memfd_create resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5213] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] getdents64(3, [pid 5057] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [ 61.877279][ T5211] loop4: detected capacity change from 0 to 1024 [pid 5056] unlink("./11/binderfs") = 0 [pid 5055] getdents64(4, [pid 5056] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3 [pid 5057] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5055] <... rmdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5055] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./11" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] rmdir("./11" [pid 5057] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... rmdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./11/binderfs") = 0 [pid 5055] getdents64(3, [pid 5057] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5211] <... mount resumed>) = 0 [pid 5055] close(3 [pid 5211] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... rmdir resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5056] mkdir("./12", 0777 [pid 5055] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] mkdir("./12", 0777 [pid 5211] <... openat resumed>) = 3 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] rmdir("./11" [pid 5211] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... rmdir resumed>) = 0 [pid 5211] <... chdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5211] ioctl(4, LOOP_CLR_FD [pid 5055] mkdir("./12", 0777 [pid 5211] <... ioctl resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5211] close(4 [pid 5055] <... mkdir resumed>) = 0 [pid 5211] <... close resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(3 [pid 5211] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... mkdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5211] <... futex resumed>) = 1 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5211] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] getdents64(4, [pid 5055] <... openat resumed>) = 3 [pid 5210] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5210] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5211] <... futex resumed>) = 0 [pid 5210] <... futex resumed>) = 1 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5214 [pid 5055] close(3 [pid 5211] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5210] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5211] <... mknod resumed>) = 0 [pid 5057] close(4 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5215 attached ./strace-static-x86_64: Process 5214 attached [pid 5211] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] set_robust_list(0x555555d616a0, 24 [pid 5214] set_robust_list(0x555555d616a0, 24 [pid 5211] <... futex resumed>) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5215 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5214] <... set_robust_list resumed>) = 0 [pid 5211] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5210] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5057] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5215] chdir("./12" [pid 5211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5210] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5214] chdir("./12" [pid 5211] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5210] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5215] <... chdir resumed>) = 0 [pid 5214] <... chdir resumed>) = 0 [pid 5213] <... write resumed>) = 524288 [pid 5211] <... open resumed>) = 4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... rmdir resumed>) = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... prctl resumed>) = 0 [pid 5211] <... futex resumed>) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5215] setpgid(0, 0 [pid 5211] sync( [pid 5210] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5216 attached [pid 5214] <... prctl resumed>) = 0 [pid 5210] <... futex resumed>) = 0 [pid 5057] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] set_robust_list(0x555555d616a0, 24 [pid 5215] <... setpgid resumed>) = 0 [pid 5214] setpgid(0, 0 [pid 5210] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5216 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5214] <... setpgid resumed>) = 0 [pid 5213] munmap(0x7f92368d1000, 138412032 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] chdir("./12" [pid 5215] <... openat resumed>) = 3 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5213] <... munmap resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5216] <... chdir resumed>) = 0 [pid 5215] write(3, "1000", 4 [pid 5214] <... openat resumed>) = 3 [pid 5213] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5215] <... write resumed>) = 4 [pid 5214] write(3, "1000", 4 [pid 5213] <... openat resumed>) = 4 [pid 5057] unlink("./11/binderfs" [pid 5216] <... prctl resumed>) = 0 [pid 5214] <... write resumed>) = 4 [pid 5215] close(3) = 0 [pid 5214] close(3 [pid 5057] <... unlink resumed>) = 0 [pid 5216] setpgid(0, 0 [pid 5215] symlink("/dev/binderfs", "./binderfs" [pid 5214] <... close resumed>) = 0 [pid 5057] getdents64(3, [pid 5216] <... setpgid resumed>) = 0 [pid 5215] <... symlink resumed>) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 5213] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5215] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5211] <... sync resumed>) = 0 [pid 5215] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5215] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5211] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5211] <... futex resumed>) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5211] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5210] exit_group(0 [pid 5215] <... mmap resumed>) = 0x7f923ecd1000 [pid 5211] <... futex resumed>) = ? [pid 5210] <... exit_group resumed>) = ? [pid 5211] +++ exited with 0 +++ [pid 5215] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5215] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5057] close(3 [pid 5215] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5214] <... symlink resumed>) = 0 [pid 5210] +++ exited with 0 +++ [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5217 attached ) = 3 [pid 5214] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5217] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5215] <... clone3 resumed> => {parent_tid=[5217]}, 88) = 5217 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5217] <... rseq resumed>) = 0 [pid 5215] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] set_robust_list(0x7f923ecf19a0, 24 [pid 5215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5217] <... set_robust_list resumed>) = 0 [pid 5215] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5217] rt_sigprocmask(SIG_SETMASK, [], [pid 5215] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5215] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] newfstatat(3, "", [pid 5217] memfd_create("syzkaller", 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(3, [pid 5217] <... memfd_create resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] <... mmap resumed>) = 0x7f92368d1000 [pid 5216] write(3, "1000", 4 [pid 5214] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5057] rmdir("./11" [pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5216] <... write resumed>) = 4 [pid 5214] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5216] close(3) = 0 [pid 5214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] mkdir("./12", 0777 [pid 5059] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5216] <... symlink resumed>) = 0 [pid 5214] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5216] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5213] <... ioctl resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5214] <... mprotect resumed>) = 0 [pid 5213] close(3 [pid 5059] umount2("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5214] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5214] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5213] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5216] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5213] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] <... openat resumed>) = 4 [pid 5216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] newfstatat(4, "", [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5218 attached [pid 5217] <... write resumed>) = 524288 [pid 5216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5214] <... clone3 resumed> => {parent_tid=[5218]}, 88) = 5218 [pid 5213] <... mkdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] close(3 [pid 5218] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5214] rt_sigprocmask(SIG_SETMASK, [], [pid 5213] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... close resumed>) = 0 [pid 5218] <... rseq resumed>) = 0 [pid 5217] munmap(0x7f92368d1000, 138412032 [pid 5216] <... mmap resumed>) = 0x7f923ecd1000 [pid 5214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] getdents64(4, [pid 5218] set_robust_list(0x7f923ecf19a0, 24 [pid 5216] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5214] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5218] <... set_robust_list resumed>) = 0 [pid 5217] <... munmap resumed>) = 0 [pid 5216] <... mprotect resumed>) = 0 [pid 5214] <... futex resumed>) = 0 [pid 5059] close(4 [pid 5214] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5216] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... close resumed>) = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] rmdir("./11/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5218] rt_sigprocmask(SIG_SETMASK, [], [pid 5217] <... openat resumed>) = 4 [pid 5216] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5217] ioctl(4, LOOP_SET_FD, 3 [ 61.987898][ T5213] loop5: detected capacity change from 0 to 1024 [pid 5059] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5219 attached [pid 5218] memfd_create("syzkaller", 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5219 [pid 5216] <... clone3 resumed> => {parent_tid=[5220]}, 88) = 5220 [pid 5218] <... memfd_create resumed>) = 3 [pid 5216] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5220 attached NULL, 8) = 0 [pid 5059] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5216] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... mount resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5220] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5219] set_robust_list(0x555555d616a0, 24 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5220] <... rseq resumed>) = 0 [pid 5219] <... set_robust_list resumed>) = 0 [pid 5218] <... mmap resumed>) = 0x7f92368d1000 [pid 5213] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] unlink("./11/binderfs" [pid 5220] set_robust_list(0x7f923ecf19a0, 24 [pid 5059] <... unlink resumed>) = 0 [pid 5220] <... set_robust_list resumed>) = 0 [pid 5059] getdents64(3, [pid 5220] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5220] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5220] memfd_create("syzkaller", 0 [pid 5059] <... close resumed>) = 0 [pid 5220] <... memfd_create resumed>) = 3 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5213] <... openat resumed>) = 3 [pid 5059] rmdir("./11" [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5219] chdir("./12" [pid 5213] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... rmdir resumed>) = 0 [pid 5220] <... mmap resumed>) = 0x7f92368d1000 [pid 5219] <... chdir resumed>) = 0 [pid 5213] <... chdir resumed>) = 0 [pid 5059] mkdir("./12", 0777 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5213] ioctl(4, LOOP_CLR_FD [pid 5059] <... mkdir resumed>) = 0 [pid 5219] <... prctl resumed>) = 0 [pid 5213] <... ioctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5219] setpgid(0, 0 [pid 5213] close(4 [pid 5059] <... openat resumed>) = 3 [pid 5219] <... setpgid resumed>) = 0 [pid 5218] <... write resumed>) = 524288 [pid 5217] <... ioctl resumed>) = 0 [pid 5213] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5213] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] close(3 [pid 5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5213] <... futex resumed>) = 1 [pid 5212] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5219] <... openat resumed>) = 3 [pid 5213] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] write(3, "1000", 4 [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] <... futex resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5221 attached [pid 5219] <... write resumed>) = 4 [pid 5218] munmap(0x7f92368d1000, 138412032 [pid 5217] close(3 [pid 5213] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5212] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5221] set_robust_list(0x555555d616a0, 24 [pid 5219] close(3 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5221 [pid 5221] <... set_robust_list resumed>) = 0 [pid 5219] <... close resumed>) = 0 [pid 5221] chdir("./12" [pid 5220] <... write resumed>) = 524288 [pid 5219] symlink("/dev/binderfs", "./binderfs" [pid 5218] <... munmap resumed>) = 0 [pid 5217] <... close resumed>) = 0 [pid 5221] <... chdir resumed>) = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5219] <... symlink resumed>) = 0 [pid 5217] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5219] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... prctl resumed>) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5217] <... mkdir resumed>) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5220] munmap(0x7f92368d1000, 138412032 [pid 5219] <... futex resumed>) = 0 [ 62.048626][ T5217] loop0: detected capacity change from 0 to 1024 [pid 5218] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5220] <... munmap resumed>) = 0 [pid 5219] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5218] <... openat resumed>) = 4 [pid 5217] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5213] <... mknod resumed>) = 0 [pid 5221] <... openat resumed>) = 3 [pid 5220] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5219] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5218] ioctl(4, LOOP_SET_FD, 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5221] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5221] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5220] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5222 attached [pid 5220] ioctl(4, LOOP_SET_FD, 3 [pid 5219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5213] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5221] <... clone3 resumed> => {parent_tid=[5222]}, 88) = 5222 [pid 5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5213] <... futex resumed>) = 1 [pid 5212] <... futex resumed>) = 0 [pid 5222] <... rseq resumed>) = 0 [pid 5221] rt_sigprocmask(SIG_SETMASK, [], [pid 5212] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] set_robust_list(0x7f923ecf19a0, 24 [pid 5221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5212] <... futex resumed>) = 0 [pid 5222] <... set_robust_list resumed>) = 0 [pid 5221] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] rt_sigprocmask(SIG_SETMASK, [], [pid 5221] <... futex resumed>) = 0 [pid 5222] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5221] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5222] memfd_create("syzkaller", 0) = 3 [pid 5220] <... ioctl resumed>) = 0 [pid 5219] <... mmap resumed>) = 0x7f923ecd1000 [pid 5218] <... ioctl resumed>) = 0 [pid 5217] <... mount resumed>) = 0 [pid 5213] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5217] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5222] <... mmap resumed>) = 0x7f92368d1000 [pid 5219] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5217] <... openat resumed>) = 3 [pid 5220] close(3 [pid 5219] <... mprotect resumed>) = 0 [pid 5218] close(3 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5217] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5220] <... close resumed>) = 0 [pid 5219] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5218] <... close resumed>) = 0 [pid 5217] <... chdir resumed>) = 0 [pid 5213] <... open resumed>) = 4 [pid 5220] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5219] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5218] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5217] ioctl(4, LOOP_CLR_FD [pid 5213] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] <... mkdir resumed>) = 0 [pid 5219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5218] <... mkdir resumed>) = 0 [pid 5217] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5223 attached [pid 5218] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5217] close(4 [pid 5223] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5219] <... clone3 resumed> => {parent_tid=[5223]}, 88) = 5223 [pid 5219] rt_sigprocmask(SIG_SETMASK, [], [pid 5220] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5223] <... rseq resumed>) = 0 [pid 5222] <... write resumed>) = 524288 [pid 5219] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... close resumed>) = 0 [pid 5223] set_robust_list(0x7f923ecf19a0, 24 [pid 5222] munmap(0x7f92368d1000, 138412032 [pid 5219] <... futex resumed>) = 0 [pid 5217] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 1 [pid 5212] <... futex resumed>) = 0 [pid 5223] <... set_robust_list resumed>) = 0 [pid 5222] <... munmap resumed>) = 0 [pid 5219] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5213] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... mount resumed>) = 0 [pid 5217] <... futex resumed>) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5223] rt_sigprocmask(SIG_SETMASK, [], [pid 5213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] <... futex resumed>) = 0 [pid 5223] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5218] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5217] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] sync( [pid 5212] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5223] memfd_create("syzkaller", 0 [pid 5222] <... openat resumed>) = 4 [pid 5218] <... openat resumed>) = 3 [pid 5217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5215] <... futex resumed>) = 0 [pid 5218] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5217] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5215] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5223] <... memfd_create resumed>) = 3 [pid 5222] ioctl(4, LOOP_SET_FD, 3 [pid 5218] <... chdir resumed>) = 0 [ 62.114987][ T5218] loop1: detected capacity change from 0 to 1024 [ 62.123819][ T5220] loop3: detected capacity change from 0 to 1024 [pid 5218] ioctl(4, LOOP_CLR_FD) = 0 [pid 5218] close(4) = 0 [pid 5218] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] <... futex resumed>) = 0 [pid 5214] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5214] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... futex resumed>) = 1 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5222] <... ioctl resumed>) = 0 [pid 5220] <... mount resumed>) = 0 [pid 5217] <... mknod resumed>) = 0 [pid 5223] <... mmap resumed>) = 0x7f92368d1000 [pid 5220] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5222] close(3 [pid 5220] <... openat resumed>) = 3 [pid 5218] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5217] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... close resumed>) = 0 [pid 5220] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5217] <... futex resumed>) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5222] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5220] <... chdir resumed>) = 0 [pid 5217] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5215] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] ioctl(4, LOOP_CLR_FD [pid 5215] <... futex resumed>) = 0 [pid 5220] <... ioctl resumed>) = 0 [pid 5215] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] close(4 [pid 5222] <... mkdir resumed>) = 0 [pid 5220] <... close resumed>) = 0 [pid 5218] <... mknod resumed>) = 0 [pid 5220] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5220] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = 0 [pid 5218] <... futex resumed>) = 1 [pid 5216] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] <... futex resumed>) = 0 [pid 5218] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5216] <... futex resumed>) = 0 [pid 5214] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] <... open resumed>) = 4 [pid 5216] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 0 [pid 5220] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5214] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5218] <... open resumed>) = 4 [pid 5217] sync( [pid 5215] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... mknod resumed>) = 0 [pid 5218] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [ 62.167303][ T5222] loop4: detected capacity change from 0 to 1024 [pid 5218] sync( [pid 5214] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... mount resumed>) = 0 [pid 5220] <... futex resumed>) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5214] <... futex resumed>) = 0 [pid 5223] <... write resumed>) = 524288 [pid 5222] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5220] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5216] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... sync resumed>) = 0 [pid 5223] munmap(0x7f92368d1000, 138412032 [pid 5222] <... openat resumed>) = 3 [pid 5223] <... munmap resumed>) = 0 [pid 5222] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5220] <... open resumed>) = 4 [pid 5217] <... sync resumed>) = 0 [pid 5216] <... futex resumed>) = 0 [pid 5214] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5222] <... chdir resumed>) = 0 [pid 5217] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] <... futex resumed>) = 0 [pid 5223] <... openat resumed>) = 4 [pid 5222] ioctl(4, LOOP_CLR_FD [pid 5218] <... sync resumed>) = 0 [pid 5217] <... futex resumed>) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5213] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5222] <... ioctl resumed>) = 0 [pid 5218] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] exit_group(0 [pid 5212] exit_group(0 [pid 5222] close(4 [pid 5218] <... futex resumed>) = 1 [pid 5217] <... futex resumed>) = ? [pid 5215] <... exit_group resumed>) = ? [pid 5214] <... futex resumed>) = 0 [pid 5213] <... futex resumed>) = ? [pid 5212] <... exit_group resumed>) = ? [pid 5223] ioctl(4, LOOP_SET_FD, 3 [pid 5222] <... close resumed>) = 0 [pid 5220] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] exit_group(0 [pid 5213] +++ exited with 0 +++ [pid 5212] +++ exited with 0 +++ [pid 5214] <... exit_group resumed>) = ? [pid 5218] <... futex resumed>) = ? [pid 5218] +++ exited with 0 +++ [pid 5214] +++ exited with 0 +++ [pid 5222] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] <... futex resumed>) = 1 [pid 5217] +++ exited with 0 +++ [pid 5216] <... futex resumed>) = 0 [pid 5215] +++ exited with 0 +++ [pid 5222] <... futex resumed>) = 1 [pid 5220] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5216] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5216] <... futex resumed>) = 0 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5216] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... restart_syscall resumed>) = 0 [pid 5220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5222] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] <... futex resumed>) = 0 [pid 5056] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] <... ioctl resumed>) = 0 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] sync( [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... restart_syscall resumed>) = 0 [pid 5223] close(3 [pid 5222] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5221] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5223] <... close resumed>) = 0 [pid 5221] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] <... mkdir resumed>) = 0 [pid 5222] <... mknod resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... openat resumed>) = 3 [pid 5222] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 3 [pid 5222] <... futex resumed>) = 1 [pid 5055] newfstatat(3, "", [pid 5222] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] <... futex resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5221] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5222] <... futex resumed>) = 0 [pid 5221] <... futex resumed>) = 1 [pid 5222] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5221] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] getdents64(3, [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [ 62.253610][ T5223] loop2: detected capacity change from 0 to 1024 [pid 5055] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5222] <... open resumed>) = 4 [pid 5216] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] newfstatat(4, "", [pid 5060] getdents64(3, [pid 5222] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, [pid 5060] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] sync( [pid 5221] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5221] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5221] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... umount2 resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5056] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] unlink("./12/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5223] <... mount resumed>) = 0 [pid 5220] <... sync resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5220] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5220] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... openat resumed>) = 4 [pid 5223] <... openat resumed>) = 3 [pid 5216] exit_group(0 [pid 5055] newfstatat(4, "", [pid 5220] <... futex resumed>) = ? [pid 5216] <... exit_group resumed>) = ? [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5220] +++ exited with 0 +++ [pid 5056] close(3 [pid 5223] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5216] +++ exited with 0 +++ [pid 5056] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5223] <... chdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5055] getdents64(4, [pid 5223] ioctl(4, LOOP_CLR_FD) = 0 [pid 5060] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] rmdir("./12" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5223] close(4 [pid 5058] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5223] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./13", 0777) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5223] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5055] close(4 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] newfstatat(3, "", [pid 5055] <... close resumed>) = 0 [pid 5223] <... futex resumed>) = 1 [pid 5060] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5219] <... futex resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5219] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5223] <... futex resumed>) = 0 [pid 5219] <... futex resumed>) = 1 [pid 5056] close(3 [pid 5060] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5223] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5219] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... close resumed>) = 0 [pid 5223] <... mknod resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5058] getdents64(3, [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... rmdir resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5224 [pid 5055] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5224 attached [pid 5223] <... futex resumed>) = 1 [pid 5221] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5219] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5224] set_robust_list(0x555555d616a0, 24 [pid 5223] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5222] <... sync resumed>) = 0 [pid 5060] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5224] <... set_robust_list resumed>) = 0 [pid 5219] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5224] chdir("./13" [pid 5219] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5055] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5224] <... chdir resumed>) = 0 [pid 5223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5222] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5223] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5222] <... futex resumed>) = 0 [pid 5221] exit_group(0 [pid 5060] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5224] <... prctl resumed>) = 0 [pid 5223] <... open resumed>) = 4 [pid 5221] <... exit_group resumed>) = ? [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4 [pid 5223] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... write resumed>) = 4 [pid 5223] <... futex resumed>) = 1 [pid 5222] +++ exited with 0 +++ [pid 5221] +++ exited with 0 +++ [pid 5219] <... futex resumed>) = 0 [pid 5224] close(3 [pid 5223] sync( [pid 5219] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] unlink("./12/binderfs" [pid 5219] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5224] <... close resumed>) = 0 [pid 5219] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5224] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... restart_syscall resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5224] <... symlink resumed>) = 0 [pid 5224] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5055] getdents64(3, [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5224] <... futex resumed>) = 0 [pid 5060] unlink("./12/binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5224] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5224] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5223] <... sync resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] close(3 [pid 5223] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(3, "", [pid 5058] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5223] <... futex resumed>) = 1 [pid 5055] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] getdents64(3, [pid 5058] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./12" [pid 5224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5219] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5219] exit_group(0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [pid 5059] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5219] <... exit_group resumed>) = ? [pid 5060] close(3 [pid 5058] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] mkdir("./13", 0777 [pid 5224] <... mmap resumed>) = 0x7f923ecd1000 [pid 5223] +++ exited with 0 +++ [pid 5219] +++ exited with 0 +++ [pid 5060] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5224] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] rmdir("./12" [pid 5224] <... mprotect resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] <... mkdir resumed>) = 0 [pid 5224] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5225 attached [pid 5060] mkdir("./13", 0777 [pid 5057] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5225] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5224] <... clone3 resumed> => {parent_tid=[5225]}, 88) = 5225 [pid 5060] <... mkdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5225] <... rseq resumed>) = 0 [pid 5224] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(4, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5225] set_robust_list(0x7f923ecf19a0, 24 [pid 5224] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5225] <... set_robust_list resumed>) = 0 [pid 5224] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... openat resumed>) = 3 [pid 5225] rt_sigprocmask(SIG_SETMASK, [], [pid 5224] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5057] newfstatat(3, "", [pid 5225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5224] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5225] memfd_create("syzkaller", 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] getdents64(3, [pid 5225] <... memfd_create resumed>) = 3 [pid 5060] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] <... close resumed>) = 0 [pid 5225] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] getdents64(4, [pid 5055] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5226 attached [pid 5226] set_robust_list(0x555555d616a0, 24 [pid 5058] close(4 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5226] <... set_robust_list resumed>) = 0 [pid 5055] close(3 [pid 5058] <... close resumed>) = 0 [pid 5226] chdir("./13" [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... close resumed>) = 0 [pid 5226] <... chdir resumed>) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] setpgid(0, 0) = 0 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5225] <... write resumed>) = 524288 [pid 5058] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5227 attached [pid 5059] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5227 [pid 5227] set_robust_list(0x555555d616a0, 24 [pid 5226] <... openat resumed>) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5226 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5227] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5226] write(3, "1000", 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5227] chdir("./13" [pid 5058] unlink("./12/binderfs" [pid 5226] <... write resumed>) = 4 [pid 5226] close(3 [pid 5059] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... unlink resumed>) = 0 [pid 5227] <... chdir resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5227] <... prctl resumed>) = 0 [pid 5226] <... close resumed>) = 0 [pid 5227] setpgid(0, 0 [pid 5226] symlink("/dev/binderfs", "./binderfs" [pid 5057] <... umount2 resumed>) = 0 [pid 5227] <... setpgid resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5058] getdents64(3, [pid 5226] <... symlink resumed>) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5059] newfstatat(4, "", [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5227] <... openat resumed>) = 3 [pid 5226] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5226] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5225] munmap(0x7f92368d1000, 138412032 [pid 5059] getdents64(4, [pid 5058] rmdir("./12" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5225] <... munmap resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5226] <... mmap resumed>) = 0x7f923ecd1000 [pid 5225] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5057] umount2("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5226] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... rmdir resumed>) = 0 [pid 5227] write(3, "1000", 4) = 4 [pid 5059] getdents64(4, [pid 5227] close(3) = 0 [pid 5226] <... mprotect resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] openat(AT_FDCWD, "./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5227] symlink("/dev/binderfs", "./binderfs" [pid 5226] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5225] <... openat resumed>) = 4 [pid 5059] close(4 [pid 5057] <... openat resumed>) = 4 [pid 5226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5225] ioctl(4, LOOP_SET_FD, 3 [pid 5057] newfstatat(4, "", [pid 5227] <... symlink resumed>) = 0 [pid 5225] <... ioctl resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] mkdir("./13", 0777 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5226] <... clone3 resumed> => {parent_tid=[5228]}, 88) = 5228 [pid 5059] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5228 attached [pid 5227] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5227] <... futex resumed>) = 0 [pid 5059] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5227] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5227] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5227] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5228] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5226] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] getdents64(4, [pid 5228] <... rseq resumed>) = 0 [pid 5226] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5227] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] unlink("./12/binderfs" [pid 5227] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5228] set_robust_list(0x7f923ecf19a0, 24 [pid 5227] <... mprotect resumed>) = 0 [pid 5226] <... futex resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] close(4) = 0 [pid 5226] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] rmdir("./12/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5227] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] getdents64(3, [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... rmdir resumed>) = 0 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5058] close(3 [pid 5057] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5228] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5228] memfd_create("syzkaller", 0 [pid 5059] close(3 [pid 5058] <... close resumed>) = 0 [pid 5227] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5227] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... close resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] unlink("./12/binderfs") = 0 [pid 5057] getdents64(3, [pid 5228] <... memfd_create resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] close(3 [pid 5228] <... mmap resumed>) = 0x7f92368d1000 [pid 5057] <... close resumed>) = 0 ./strace-static-x86_64: Process 5229 attached ./strace-static-x86_64: Process 5230 attached [pid 5225] close(3 [pid 5059] rmdir("./12" [pid 5057] rmdir("./12" [pid 5229] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5230] set_robust_list(0x555555d616a0, 24 [pid 5227] <... clone3 resumed> => {parent_tid=[5229]}, 88) = 5229 [pid 5225] <... close resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5229] <... rseq resumed>) = 0 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5227] rt_sigprocmask(SIG_SETMASK, [], [pid 5225] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] mkdir("./13", 0777 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5230 [pid 5229] set_robust_list(0x7f923ecf19a0, 24 [pid 5230] chdir("./13" [pid 5227] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] mkdir("./13", 0777 [pid 5229] <... set_robust_list resumed>) = 0 [pid 5230] <... chdir resumed>) = 0 [pid 5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5227] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... mkdir resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] <... futex resumed>) = 0 [pid 5225] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5227] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5230] <... prctl resumed>) = 0 [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] close(3 [pid 5229] memfd_create("syzkaller", 0 [pid 5059] <... close resumed>) = 0 [pid 5230] setpgid(0, 0 [pid 5057] <... openat resumed>) = 3 [pid 5057] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5229] <... memfd_create resumed>) = 3 [pid 5230] <... setpgid resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] close(3) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5231 attached [pid 5228] <... write resumed>) = 524288 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5230] <... openat resumed>) = 3 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5232 ./strace-static-x86_64: Process 5232 attached [ 62.485129][ T5225] loop1: detected capacity change from 0 to 1024 [pid 5232] set_robust_list(0x555555d616a0, 24 [pid 5231] set_robust_list(0x555555d616a0, 24 [pid 5229] <... mmap resumed>) = 0x7f92368d1000 [pid 5230] write(3, "1000", 4 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5231 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5231] <... set_robust_list resumed>) = 0 [pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5230] <... write resumed>) = 4 [pid 5228] munmap(0x7f92368d1000, 138412032 [pid 5232] chdir("./13" [pid 5231] chdir("./13" [pid 5229] <... write resumed>) = 524288 [pid 5230] close(3 [pid 5228] <... munmap resumed>) = 0 [pid 5225] <... mount resumed>) = 0 [pid 5232] <... chdir resumed>) = 0 [pid 5231] <... chdir resumed>) = 0 [pid 5229] munmap(0x7f92368d1000, 138412032 [pid 5230] <... close resumed>) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5225] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] symlink("/dev/binderfs", "./binderfs" [pid 5228] <... openat resumed>) = 4 [pid 5225] <... openat resumed>) = 3 [pid 5232] <... prctl resumed>) = 0 [pid 5231] <... prctl resumed>) = 0 [pid 5228] ioctl(4, LOOP_SET_FD, 3 [pid 5232] setpgid(0, 0 [pid 5231] setpgid(0, 0 [pid 5229] <... munmap resumed>) = 0 [pid 5230] <... symlink resumed>) = 0 [pid 5225] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5232] <... setpgid resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5230] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... chdir resumed>) = 0 [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] <... openat resumed>) = 4 [pid 5230] <... futex resumed>) = 0 [pid 5225] ioctl(4, LOOP_CLR_FD [pid 5232] <... openat resumed>) = 3 [pid 5229] ioctl(4, LOOP_SET_FD, 3 [pid 5230] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5225] <... ioctl resumed>) = 0 [pid 5232] write(3, "1000", 4 [pid 5231] <... setpgid resumed>) = 0 [pid 5230] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5228] <... ioctl resumed>) = 0 [pid 5225] close(4 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] close(3 [pid 5231] <... openat resumed>) = 3 [pid 5228] <... close resumed>) = 0 [pid 5231] write(3, "1000", 4 [pid 5228] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5231] <... write resumed>) = 4 [pid 5228] <... mkdir resumed>) = 0 [pid 5231] close(3) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5228] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5232] <... write resumed>) = 4 [pid 5231] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... ioctl resumed>) = 0 [pid 5230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5225] <... close resumed>) = 0 [pid 5229] close(3 [pid 5232] close(3 [pid 5231] <... futex resumed>) = 0 [pid 5229] <... close resumed>) = 0 [pid 5225] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] <... close resumed>) = 0 [pid 5231] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5229] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5225] <... futex resumed>) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5232] symlink("/dev/binderfs", "./binderfs" [pid 5231] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5229] <... mkdir resumed>) = 0 [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5224] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] <... symlink resumed>) = 0 [pid 5224] <... futex resumed>) = 0 [pid 5225] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5224] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5230] <... mmap resumed>) = 0x7f923ecd1000 [pid 5232] <... futex resumed>) = 0 [pid 5231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5229] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5230] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5232] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5225] <... mknod resumed>) = 0 [pid 5232] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5231] <... mmap resumed>) = 0x7f923ecd1000 [pid 5230] <... mprotect resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5231] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5230] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5225] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5231] <... mprotect resumed>) = 0 [pid 5232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5231] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5230] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5232] <... mmap resumed>) = 0x7f923ecd1000 [pid 5231] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5233 attached [pid 5232] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5225] <... futex resumed>) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5233] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5232] <... mprotect resumed>) = 0 [pid 5228] <... mount resumed>) = 0 [pid 5225] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5224] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5234 attached [pid 5233] <... rseq resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5229] <... mount resumed>) = 0 [pid 5230] <... clone3 resumed> => {parent_tid=[5233]}, 88) = 5233 [pid 5228] <... openat resumed>) = 3 [pid 5225] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5224] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5233] set_robust_list(0x7f923ecf19a0, 24 [pid 5232] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5231] <... clone3 resumed> => {parent_tid=[5234]}, 88) = 5234 [pid 5229] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5230] rt_sigprocmask(SIG_SETMASK, [], [pid 5234] <... rseq resumed>) = 0 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5231] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] <... openat resumed>) = 3 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5234] set_robust_list(0x7f923ecf19a0, 24 [pid 5233] rt_sigprocmask(SIG_SETMASK, [], [pid 5231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5230] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5225] <... open resumed>) = 4 ./strace-static-x86_64: Process 5235 attached [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] <... clone3 resumed> => {parent_tid=[5235]}, 88) = 5235 [pid 5231] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5230] <... futex resumed>) = 0 [pid 5228] <... chdir resumed>) = 0 [pid 5225] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [ 62.577040][ T5228] loop5: detected capacity change from 0 to 1024 [ 62.583184][ T5229] loop0: detected capacity change from 0 to 1024 [pid 5234] rt_sigprocmask(SIG_SETMASK, [], [pid 5233] memfd_create("syzkaller", 0 [pid 5231] <... futex resumed>) = 0 [pid 5229] <... chdir resumed>) = 0 [pid 5230] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5228] ioctl(4, LOOP_CLR_FD [pid 5225] <... futex resumed>) = 1 [pid 5232] rt_sigprocmask(SIG_SETMASK, [], [pid 5224] <... futex resumed>) = 0 [pid 5235] <... rseq resumed>) = 0 [pid 5234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5233] <... memfd_create resumed>) = 3 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5231] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5229] ioctl(4, LOOP_CLR_FD [pid 5228] <... ioctl resumed>) = 0 [pid 5225] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] set_robust_list(0x7f923ecf19a0, 24 [pid 5234] memfd_create("syzkaller", 0 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... ioctl resumed>) = 0 [pid 5228] close(4 [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5224] <... futex resumed>) = 0 [pid 5235] <... set_robust_list resumed>) = 0 [pid 5234] <... memfd_create resumed>) = 3 [pid 5233] <... mmap resumed>) = 0x7f92368d1000 [pid 5232] <... futex resumed>) = 0 [pid 5229] close(4 [pid 5225] sync( [pid 5224] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5229] <... close resumed>) = 0 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5235] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... mmap resumed>) = 0x7f92368d1000 [pid 5229] <... futex resumed>) = 1 [pid 5228] <... close resumed>) = 0 [pid 5227] <... futex resumed>) = 0 [pid 5235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5229] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5229] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5227] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] memfd_create("syzkaller", 0 [pid 5229] <... mknod resumed>) = 0 [pid 5228] <... futex resumed>) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5226] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... memfd_create resumed>) = 3 [pid 5226] <... futex resumed>) = 0 [pid 5226] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5229] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5229] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5229] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] <... mmap resumed>) = 0x7f92368d1000 [pid 5229] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5228] <... mknod resumed>) = 0 [pid 5229] <... open resumed>) = 4 [pid 5229] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5228] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 1 [pid 5227] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 [pid 5228] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... futex resumed>) = 0 [pid 5226] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... futex resumed>) = 0 [pid 5229] sync( [pid 5228] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5226] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] <... write resumed>) = 524288 [pid 5228] <... open resumed>) = 4 [pid 5225] <... sync resumed>) = 0 [pid 5225] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5225] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] exit_group(0) = ? [pid 5225] <... futex resumed>) = ? [pid 5228] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] munmap(0x7f92368d1000, 138412032 [pid 5228] <... futex resumed>) = 1 [pid 5226] <... futex resumed>) = 0 [pid 5225] +++ exited with 0 +++ [pid 5224] +++ exited with 0 +++ [pid 5226] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] sync( [pid 5226] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5226] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] <... munmap resumed>) = 0 [pid 5056] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5233] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5234] <... write resumed>) = 524288 [pid 5233] <... openat resumed>) = 4 [pid 5056] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] ioctl(4, LOOP_SET_FD, 3 [pid 5229] <... sync resumed>) = 0 [pid 5228] <... sync resumed>) = 0 [pid 5229] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] munmap(0x7f92368d1000, 138412032 [pid 5229] <... futex resumed>) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5229] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] <... futex resumed>) = 1 [pid 5227] exit_group(0 [pid 5226] <... futex resumed>) = 0 [pid 5234] <... munmap resumed>) = 0 [pid 5229] <... futex resumed>) = ? [pid 5228] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... exit_group resumed>) = ? [pid 5226] exit_group(0 [pid 5229] +++ exited with 0 +++ [pid 5227] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5235] <... write resumed>) = 524288 [pid 5234] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5233] <... ioctl resumed>) = 0 [pid 5228] <... futex resumed>) = ? [pid 5226] <... exit_group resumed>) = ? [pid 5235] munmap(0x7f92368d1000, 138412032 [pid 5234] <... openat resumed>) = 4 [pid 5233] close(3 [pid 5228] +++ exited with 0 +++ [pid 5226] +++ exited with 0 +++ [pid 5055] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... munmap resumed>) = 0 [pid 5234] ioctl(4, LOOP_SET_FD, 3 [pid 5233] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5060] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5055] newfstatat(3, "", [pid 5060] newfstatat(3, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5055] getdents64(3, [pid 5235] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5233] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5235] <... openat resumed>) = 4 [pid 5060] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] ioctl(4, LOOP_SET_FD, 3 [pid 5233] <... mkdir resumed>) = 0 [pid 5056] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5234] <... ioctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5234] close(3) = 0 [pid 5234] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5056] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5235] <... ioctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5235] close(3 [pid 5234] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... openat resumed>) = 4 [pid 5055] <... umount2 resumed>) = 0 [pid 5235] <... close resumed>) = 0 [pid 5235] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] newfstatat(4, "", [pid 5235] <... mkdir resumed>) = 0 [pid 5233] <... mount resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5233] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] getdents64(4, [pid 5233] <... openat resumed>) = 3 [pid 5233] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5233] <... chdir resumed>) = 0 [pid 5233] ioctl(4, LOOP_CLR_FD [pid 5056] getdents64(4, [pid 5234] <... mount resumed>) = 0 [pid 5233] <... ioctl resumed>) = 0 [pid 5234] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5233] close(4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5234] <... openat resumed>) = 3 [pid 5233] <... close resumed>) = 0 [pid 5060] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(4 [pid 5235] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5234] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5233] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 62.715648][ T5233] loop3: detected capacity change from 0 to 1024 [ 62.729600][ T5234] loop2: detected capacity change from 0 to 1024 [ 62.746253][ T5235] loop4: detected capacity change from 0 to 1024 [pid 5056] <... close resumed>) = 0 [pid 5234] <... chdir resumed>) = 0 [pid 5233] <... futex resumed>) = 1 [pid 5060] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5234] ioctl(4, LOOP_CLR_FD [pid 5233] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5234] <... ioctl resumed>) = 0 [pid 5060] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5234] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5234] <... close resumed>) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5234] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5234] <... futex resumed>) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5060] newfstatat(4, "", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5234] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5230] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5231] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5055] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5231] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5234] <... futex resumed>) = 0 [pid 5233] <... mknod resumed>) = 0 [pid 5231] <... futex resumed>) = 1 [pid 5060] getdents64(4, [pid 5056] unlink("./13/binderfs" [pid 5055] newfstatat(4, "", [pid 5234] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5231] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5234] <... mknod resumed>) = 0 [pid 5233] <... futex resumed>) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5056] getdents64(3, [pid 5055] getdents64(4, [pid 5230] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5234] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 0 [pid 5060] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5234] <... futex resumed>) = 1 [pid 5233] <... open resumed>) = 4 [pid 5231] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5234] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5231] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5234] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5233] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(4 [pid 5233] <... futex resumed>) = 0 [pid 5230] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5235] <... mount resumed>) = 0 [pid 5234] <... open resumed>) = 4 [pid 5056] close(3 [pid 5055] <... close resumed>) = 0 [pid 5233] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5230] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5230] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5235] <... openat resumed>) = 3 [pid 5234] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] sync( [pid 5060] unlink("./13/binderfs" [pid 5056] rmdir("./13" [pid 5055] <... rmdir resumed>) = 0 [pid 5235] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5234] <... futex resumed>) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5235] <... chdir resumed>) = 0 [pid 5231] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... unlink resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5235] ioctl(4, LOOP_CLR_FD [pid 5234] sync( [pid 5231] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5056] mkdir("./14", 0777 [pid 5055] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... ioctl resumed>) = 0 [pid 5231] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5235] close(4 [pid 5055] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5235] <... close resumed>) = 0 [pid 5060] close(3 [pid 5056] <... mkdir resumed>) = 0 [pid 5235] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5235] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5060] rmdir("./13" [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] unlink("./13/binderfs" [pid 5235] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5235] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5232] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5232] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] mkdir("./14", 0777 [pid 5055] getdents64(3, [pid 5060] <... mkdir resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5235] <... mknod resumed>) = 0 [pid 5055] close(3 [pid 5235] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... close resumed>) = 0 [pid 5235] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5056] close(3 [pid 5055] rmdir("./13" [pid 5235] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5232] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5232] <... futex resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5232] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] <... sync resumed>) = 0 [pid 5233] <... sync resumed>) = 0 [pid 5060] close(3 [pid 5234] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5055] mkdir("./14", 0777 [pid 5234] <... futex resumed>) = 1 [pid 5233] <... futex resumed>) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] exit_group(0 [pid 5230] exit_group(0 [pid 5234] <... futex resumed>) = ? [pid 5233] <... futex resumed>) = ? [pid 5231] <... exit_group resumed>) = ? [pid 5230] <... exit_group resumed>) = ? [pid 5055] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5236 attached [pid 5233] +++ exited with 0 +++ [pid 5230] +++ exited with 0 +++ [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5236 ./strace-static-x86_64: Process 5237 attached [pid 5236] set_robust_list(0x555555d616a0, 24 [pid 5234] +++ exited with 0 +++ [pid 5231] +++ exited with 0 +++ [pid 5235] <... open resumed>) = 4 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5237] set_robust_list(0x555555d616a0, 24 [pid 5236] <... set_robust_list resumed>) = 0 [pid 5235] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5237 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] <... openat resumed>) = 3 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5236] chdir("./14" [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5235] <... futex resumed>) = 1 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5232] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5237] chdir("./14" [pid 5236] <... chdir resumed>) = 0 [pid 5235] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5237] <... chdir resumed>) = 0 [pid 5232] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5232] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5237] <... prctl resumed>) = 0 [pid 5058] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5237] setpgid(0, 0 [pid 5236] <... prctl resumed>) = 0 [pid 5235] sync( [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] <... setpgid resumed>) = 0 [pid 5236] setpgid(0, 0 [pid 5058] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... setpgid resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 [pid 5237] <... openat resumed>) = 3 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] newfstatat(3, "", [pid 5057] newfstatat(3, "", ./strace-static-x86_64: Process 5238 attached [pid 5236] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5238] set_robust_list(0x555555d616a0, 24 [pid 5237] write(3, "1000", 4 [pid 5236] write(3, "1000", 4 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] getdents64(3, [pid 5237] <... write resumed>) = 4 [pid 5058] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5238] <... set_robust_list resumed>) = 0 [pid 5237] close(3 [pid 5057] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5238 [pid 5238] chdir("./14" [pid 5237] <... close resumed>) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5238] <... chdir resumed>) = 0 [pid 5237] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5237] <... futex resumed>) = 0 [pid 5236] <... write resumed>) = 4 [pid 5238] <... prctl resumed>) = 0 [pid 5237] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] <... umount2 resumed>) = 0 [pid 5238] setpgid(0, 0 [pid 5237] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5236] close(3) = 0 [pid 5238] <... setpgid resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5237] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5238] write(3, "1000", 4 [pid 5237] <... mprotect resumed>) = 0 [pid 5238] <... write resumed>) = 4 [pid 5237] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] close(3) = 0 [pid 5236] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5238] symlink("/dev/binderfs", "./binderfs" [pid 5237] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5237] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5239 attached [pid 5238] <... symlink resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5239] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5238] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... symlink resumed>) = 0 [pid 5239] <... rseq resumed>) = 0 [pid 5238] <... futex resumed>) = 0 [pid 5237] <... clone3 resumed> => {parent_tid=[5239]}, 88) = 5239 [pid 5236] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] set_robust_list(0x7f923ecf19a0, 24 [pid 5238] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5237] rt_sigprocmask(SIG_SETMASK, [], [pid 5236] <... futex resumed>) = 0 [pid 5235] <... sync resumed>) = 0 [pid 5239] <... set_robust_list resumed>) = 0 [pid 5237] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] rt_sigprocmask(SIG_SETMASK, [], [pid 5238] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5237] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5235] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = 0 [pid 5239] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5237] <... futex resumed>) = 0 [pid 5236] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5235] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] <... openat resumed>) = 4 [pid 5232] exit_group(0 [pid 5238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] newfstatat(4, "", [pid 5232] <... exit_group resumed>) = ? [pid 5238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] <... futex resumed>) = ? [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5239] memfd_create("syzkaller", 0 [pid 5238] <... mmap resumed>) = 0x7f923ecd1000 [pid 5239] <... memfd_create resumed>) = 3 [pid 5238] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5237] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5235] +++ exited with 0 +++ [pid 5232] +++ exited with 0 +++ [pid 5058] getdents64(4, [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] <... mprotect resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] <... mmap resumed>) = 0x7f92368d1000 [pid 5238] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5236] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5058] getdents64(4, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5238] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5236] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5236] <... mprotect resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] close(4 [pid 5057] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5236] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5236] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5240 attached [pid 5238] <... clone3 resumed> => {parent_tid=[5240]}, 88) = 5240 [pid 5236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] newfstatat(3, "", [pid 5057] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5240] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5238] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 4 [pid 5240] <... rseq resumed>) = 0 [pid 5238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] set_robust_list(0x7f923ecf19a0, 24 [pid 5238] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] <... set_robust_list resumed>) = 0 [pid 5238] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5057] newfstatat(4, "", [pid 5240] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5238] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] getdents64(4, [pid 5240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5240] memfd_create("syzkaller", 0 [pid 5059] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5058] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5241 attached [pid 5236] <... clone3 resumed> => {parent_tid=[5241]}, 88) = 5241 [pid 5058] unlink("./13/binderfs" [pid 5057] close(4 [pid 5241] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5240] <... memfd_create resumed>) = 3 [pid 5236] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5241] <... rseq resumed>) = 0 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5241] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5240] <... mmap resumed>) = 0x7f92368d1000 [pid 5236] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5057] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5241] rt_sigprocmask(SIG_SETMASK, [], [pid 5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5236] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5241] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5239] <... write resumed>) = 524288 [pid 5236] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] close(3) = 0 [pid 5057] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5241] memfd_create("syzkaller", 0) = 3 [pid 5239] munmap(0x7f92368d1000, 138412032 [pid 5059] <... umount2 resumed>) = 0 [pid 5058] rmdir("./13" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... munmap resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./13/binderfs") = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] mkdir("./14", 0777 [pid 5057] getdents64(3, [pid 5239] <... openat resumed>) = 4 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5239] ioctl(4, LOOP_SET_FD, 3 [pid 5057] close(3 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5240] <... write resumed>) = 524288 [pid 5059] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... close resumed>) = 0 [pid 5241] <... mmap resumed>) = 0x7f92368d1000 [pid 5239] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5057] rmdir("./13" [pid 5059] newfstatat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... rmdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] mkdir("./14", 0777 [pid 5239] close(3 [pid 5059] umount2("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] close(3 [pid 5057] <... mkdir resumed>) = 0 [pid 5240] munmap(0x7f92368d1000, 138412032 [pid 5239] <... close resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5239] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] openat(AT_FDCWD, "./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... openat resumed>) = 3 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5239] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5242 attached [pid 5240] <... munmap resumed>) = 0 [pid 5239] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] newfstatat(4, "", [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5242 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5242] set_robust_list(0x555555d616a0, 24 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] getdents64(4, [pid 5057] close(3 [pid 5242] <... set_robust_list resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... close resumed>) = 0 [pid 5242] chdir("./14" [pid 5240] <... openat resumed>) = 4 [pid 5239] <... mount resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached [pid 5240] ioctl(4, LOOP_SET_FD, 3 [pid 5239] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [ 62.948255][ T5239] loop5: detected capacity change from 0 to 1024 [pid 5243] set_robust_list(0x555555d616a0, 24 [pid 5242] <... chdir resumed>) = 0 [pid 5241] <... write resumed>) = 524288 [pid 5059] close(4 [pid 5239] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] rmdir("./13/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5242] <... prctl resumed>) = 0 [pid 5243] <... set_robust_list resumed>) = 0 [pid 5242] setpgid(0, 0 [pid 5241] munmap(0x7f92368d1000, 138412032 [pid 5239] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... rmdir resumed>) = 0 [pid 5242] <... setpgid resumed>) = 0 [pid 5243] chdir("./14" [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] <... chdir resumed>) = 0 [pid 5059] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] ioctl(4, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... ioctl resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5239] close(4 [pid 5241] <... munmap resumed>) = 0 [pid 5239] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./13/binderfs" [pid 5239] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... unlink resumed>) = 0 [pid 5243] <... chdir resumed>) = 0 [pid 5239] <... futex resumed>) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5243 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] <... openat resumed>) = 3 [pid 5239] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... prctl resumed>) = 0 [pid 5239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5243] setpgid(0, 0 [pid 5239] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5237] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5243] <... setpgid resumed>) = 0 [pid 5239] <... mknod resumed>) = 0 [pid 5059] getdents64(3, [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5242] write(3, "1000", 4 [pid 5239] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5243] <... openat resumed>) = 3 [pid 5242] <... write resumed>) = 4 [pid 5241] <... openat resumed>) = 4 [pid 5239] <... futex resumed>) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5243] write(3, "1000", 4 [pid 5240] <... ioctl resumed>) = 0 [pid 5239] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5243] <... write resumed>) = 4 [pid 5242] close(3 [pid 5241] ioctl(4, LOOP_SET_FD, 3 [pid 5240] close(3 [pid 5239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5059] rmdir("./13" [pid 5243] close(3 [pid 5242] <... close resumed>) = 0 [pid 5240] <... close resumed>) = 0 [pid 5239] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5237] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... rmdir resumed>) = 0 [pid 5243] <... close resumed>) = 0 [pid 5242] symlink("/dev/binderfs", "./binderfs" [pid 5240] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] mkdir("./14", 0777 [pid 5243] symlink("/dev/binderfs", "./binderfs" [pid 5240] <... mkdir resumed>) = 0 [pid 5239] <... open resumed>) = 4 [pid 5059] <... mkdir resumed>) = 0 [pid 5243] <... symlink resumed>) = 0 [pid 5243] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5242] <... symlink resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5243] <... futex resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5243] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5242] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] <... mount resumed>) = 0 [pid 5239] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5243] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5240] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5239] <... futex resumed>) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5242] <... futex resumed>) = 0 [pid 5243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5240] <... openat resumed>) = 3 [pid 5239] sync( [pid 5237] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5243] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5237] <... futex resumed>) = 0 [pid 5243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5240] <... chdir resumed>) = 0 [pid 5237] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5243] <... mmap resumed>) = 0x7f923ecd1000 [pid 5242] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5240] ioctl(4, LOOP_CLR_FD [pid 5243] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5242] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5240] <... ioctl resumed>) = 0 [pid 5243] <... mprotect resumed>) = 0 [pid 5240] close(4./strace-static-x86_64: Process 5244 attached [pid 5244] set_robust_list(0x555555d616a0, 24 [pid 5243] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5241] <... ioctl resumed>) = 0 [pid 5240] <... close resumed>) = 0 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] chdir("./14" [pid 5243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5241] close(3 [pid 5240] <... futex resumed>) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5244 ./strace-static-x86_64: Process 5245 attached [pid 5244] <... chdir resumed>) = 0 [pid 5242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5241] <... close resumed>) = 0 [pid 5240] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5238] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5243] <... clone3 resumed> => {parent_tid=[5245]}, 88) = 5245 [pid 5242] <... mmap resumed>) = 0x7f923ecd1000 [pid 5245] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5241] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5238] <... futex resumed>) = 0 [pid 5244] <... prctl resumed>) = 0 [pid 5243] rt_sigprocmask(SIG_SETMASK, [], [pid 5242] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5240] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5238] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] <... rseq resumed>) = 0 [pid 5244] setpgid(0, 0 [pid 5243] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5242] <... mprotect resumed>) = 0 [pid 5241] <... mkdir resumed>) = 0 [pid 5245] set_robust_list(0x7f923ecf19a0, 24 [pid 5244] <... setpgid resumed>) = 0 [pid 5243] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5241] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5245] <... set_robust_list resumed>) = 0 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] <... futex resumed>) = 0 [pid 5242] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5240] <... mknod resumed>) = 0 [pid 5244] <... openat resumed>) = 3 [pid 5243] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5246 attached [pid 5245] rt_sigprocmask(SIG_SETMASK, [], [pid 5244] write(3, "1000", 4 [pid 5240] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5242] <... clone3 resumed> => {parent_tid=[5246]}, 88) = 5246 [pid 5240] <... futex resumed>) = 1 [pid 5242] rt_sigprocmask(SIG_SETMASK, [], [pid 5245] memfd_create("syzkaller", 0 [pid 5246] <... rseq resumed>) = 0 [pid 5242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5240] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] set_robust_list(0x7f923ecf19a0, 24 [pid 5245] <... memfd_create resumed>) = 3 [pid 5242] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] <... set_robust_list resumed>) = 0 [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5242] <... futex resumed>) = 0 [ 62.990085][ T5240] loop0: detected capacity change from 0 to 1024 [ 63.015289][ T5241] loop1: detected capacity change from 0 to 1024 [pid 5246] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5245] <... mmap resumed>) = 0x7f92368d1000 [pid 5242] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5238] <... futex resumed>) = 0 [pid 5246] memfd_create("syzkaller", 0 [pid 5244] <... write resumed>) = 4 [pid 5238] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] close(3 [pid 5240] <... futex resumed>) = 0 [pid 5238] <... futex resumed>) = 1 [pid 5240] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5246] <... memfd_create resumed>) = 3 [pid 5244] <... close resumed>) = 0 [pid 5244] symlink("/dev/binderfs", "./binderfs" [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5244] <... symlink resumed>) = 0 [pid 5246] <... mmap resumed>) = 0x7f92368d1000 [pid 5241] <... mount resumed>) = 0 [pid 5244] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5238] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... futex resumed>) = 0 [pid 5241] <... openat resumed>) = 3 [pid 5244] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5241] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5244] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5241] <... chdir resumed>) = 0 [pid 5240] <... open resumed>) = 4 [pid 5244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5241] ioctl(4, LOOP_CLR_FD [pid 5244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5241] <... ioctl resumed>) = 0 [pid 5239] <... sync resumed>) = 0 [pid 5244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5241] close(4 [pid 5239] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... mmap resumed>) = 0x7f923ecd1000 [pid 5241] <... close resumed>) = 0 [pid 5244] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5241] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5241] <... futex resumed>) = 1 [pid 5239] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] exit_group(0 [pid 5236] <... futex resumed>) = 0 [pid 5244] <... mprotect resumed>) = 0 [pid 5241] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5240] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = ? [pid 5237] <... exit_group resumed>) = ? [pid 5236] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5244] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5240] <... futex resumed>) = 1 [pid 5239] +++ exited with 0 +++ [pid 5238] <... futex resumed>) = 0 [pid 5237] +++ exited with 0 +++ [pid 5236] <... futex resumed>) = 0 [pid 5244] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5241] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5238] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5241] <... mknod resumed>) = 0 [pid 5240] sync( [pid 5238] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5247 attached [pid 5241] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5247] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5244] <... clone3 resumed> => {parent_tid=[5247]}, 88) = 5247 [pid 5241] <... futex resumed>) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5247] <... rseq resumed>) = 0 [pid 5244] rt_sigprocmask(SIG_SETMASK, [], [pid 5241] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5236] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] set_robust_list(0x7f923ecf19a0, 24 [pid 5244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] <... futex resumed>) = 0 [pid 5247] <... set_robust_list resumed>) = 0 [pid 5245] <... write resumed>) = 524288 [pid 5244] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... open resumed>) = 4 [pid 5236] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5244] <... futex resumed>) = 0 [pid 5244] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5241] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5241] <... futex resumed>) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5241] sync( [pid 5236] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5236] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5236] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] memfd_create("syzkaller", 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5247] <... memfd_create resumed>) = 3 [pid 5060] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5247] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5246] <... write resumed>) = 524288 [pid 5245] munmap(0x7f92368d1000, 138412032 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5246] munmap(0x7f92368d1000, 138412032 [pid 5245] <... munmap resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5246] <... munmap resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5060] newfstatat(4, "", [pid 5245] <... openat resumed>) = 4 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5245] ioctl(4, LOOP_SET_FD, 3 [pid 5240] <... sync resumed>) = 0 [pid 5060] getdents64(4, [pid 5241] <... sync resumed>) = 0 [pid 5241] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5241] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5236] exit_group(0 [pid 5241] <... futex resumed>) = ? [pid 5236] <... exit_group resumed>) = ? [pid 5241] +++ exited with 0 +++ [pid 5236] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4) = 0 [pid 5060] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5240] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5060] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./14/binderfs" [pid 5238] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... unlink resumed>) = 0 [pid 5238] exit_group(0 [pid 5060] getdents64(3, [pid 5238] <... exit_group resumed>) = ? [pid 5246] <... openat resumed>) = 4 [pid 5240] <... futex resumed>) = ? [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3) = 0 [pid 5060] rmdir("./14") = 0 [pid 5060] mkdir("./15", 0777 [pid 5247] <... write resumed>) = 524288 [pid 5246] ioctl(4, LOOP_SET_FD, 3 [pid 5245] <... ioctl resumed>) = 0 [pid 5240] +++ exited with 0 +++ [pid 5238] +++ exited with 0 +++ [pid 5060] <... mkdir resumed>) = 0 [pid 5247] munmap(0x7f92368d1000, 138412032) = 0 [pid 5056] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5247] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... restart_syscall resumed>) = 0 [pid 5247] <... openat resumed>) = 4 [pid 5245] close(3 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... openat resumed>) = 3 [pid 5247] ioctl(4, LOOP_SET_FD, 3 [pid 5245] <... close resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5060] <... openat resumed>) = 3 [pid 5246] <... ioctl resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5246] close(3 [pid 5245] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] getdents64(3, [pid 5246] <... close resumed>) = 0 [pid 5245] <... mkdir resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5246] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5245] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5246] <... mkdir resumed>) = 0 [pid 5060] close(3 [pid 5055] newfstatat(3, "", [pid 5060] <... close resumed>) = 0 [pid 5246] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5247] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5248 attached [pid 5246] <... mount resumed>) = 0 [pid 5245] <... mount resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] getdents64(3, [pid 5245] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5248] set_robust_list(0x555555d616a0, 24 [pid 5247] close(3 [pid 5246] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5245] <... openat resumed>) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5248 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5248] <... set_robust_list resumed>) = 0 [pid 5247] <... close resumed>) = 0 [pid 5246] <... openat resumed>) = 3 [pid 5245] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5245] <... chdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] chdir("./15" [pid 5246] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5245] ioctl(4, LOOP_CLR_FD [pid 5056] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5246] <... chdir resumed>) = 0 [pid 5245] <... ioctl resumed>) = 0 [pid 5246] ioctl(4, LOOP_CLR_FD [pid 5245] close(4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5247] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5246] <... ioctl resumed>) = 0 [pid 5245] <... close resumed>) = 0 [pid 5056] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... chdir resumed>) = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5245] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... mkdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] <... prctl resumed>) = 0 [pid 5247] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5246] close(4 [pid 5245] <... futex resumed>) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5248] setpgid(0, 0 [pid 5246] <... close resumed>) = 0 [pid 5245] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5243] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... setpgid resumed>) = 0 [pid 5246] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 4 [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5246] <... futex resumed>) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5242] <... futex resumed>) = 0 [pid 5248] <... openat resumed>) = 3 [pid 5246] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5242] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] write(3, "1000", 4 [pid 5243] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 0 [ 63.132372][ T5245] loop2: detected capacity change from 0 to 1024 [ 63.149209][ T5246] loop3: detected capacity change from 0 to 1024 [ 63.162069][ T5247] loop4: detected capacity change from 0 to 1024 [pid 5056] newfstatat(4, "", [pid 5248] <... write resumed>) = 4 [pid 5247] <... mount resumed>) = 0 [pid 5242] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] close(3 [pid 5247] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5245] <... mknod resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5247] <... openat resumed>) = 3 [pid 5246] <... mknod resumed>) = 0 [pid 5245] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5055] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... close resumed>) = 0 [pid 5247] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5245] <... futex resumed>) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] symlink("/dev/binderfs", "./binderfs" [pid 5247] <... chdir resumed>) = 0 [pid 5246] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(4, [pid 5248] <... symlink resumed>) = 0 [pid 5246] <... futex resumed>) = 1 [pid 5242] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5247] ioctl(4, LOOP_CLR_FD [pid 5245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] <... futex resumed>) = 0 [pid 5242] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5248] <... futex resumed>) = 0 [pid 5248] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5247] <... ioctl resumed>) = 0 [pid 5243] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5247] close(4 [pid 5056] close(4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5247] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5248] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5247] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... mprotect resumed>) = 0 [pid 5246] <... open resumed>) = 4 [pid 5245] <... open resumed>) = 4 [pid 5056] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 4 [pid 5248] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5247] <... futex resumed>) = 1 [pid 5245] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(4, "", [pid 5248] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5247] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 1 [pid 5244] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5246] <... futex resumed>) = 1 [pid 5245] sync( [pid 5244] <... futex resumed>) = 0 [pid 5243] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] getdents64(4, ./strace-static-x86_64: Process 5249 attached [pid 5247] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5246] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5242] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... clone3 resumed> => {parent_tid=[5249]}, 88) = 5249 [pid 5249] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5247] <... mknod resumed>) = 0 [pid 5246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5244] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5243] <... futex resumed>) = 0 [pid 5242] <... futex resumed>) = 0 [pid 5056] unlink("./14/binderfs" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5249] <... rseq resumed>) = 0 [pid 5248] rt_sigprocmask(SIG_SETMASK, [], [pid 5246] sync( [pid 5243] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] set_robust_list(0x7f923ecf19a0, 24 [pid 5248] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5247] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... unlink resumed>) = 0 [pid 5055] getdents64(4, [pid 5249] <... set_robust_list resumed>) = 0 [pid 5248] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5249] rt_sigprocmask(SIG_SETMASK, [], [pid 5247] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(4 [pid 5249] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5248] <... futex resumed>) = 0 [pid 5247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5244] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5249] memfd_create("syzkaller", 0 [pid 5248] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5247] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5244] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5055] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5249] <... memfd_create resumed>) = 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5249] <... mmap resumed>) = 0x7f92368d1000 [pid 5246] <... sync resumed>) = 0 [pid 5246] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5242] <... futex resumed>) = 0 [pid 5246] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5242] exit_group(0 [pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5246] <... futex resumed>) = ? [pid 5242] <... exit_group resumed>) = ? [pid 5247] <... open resumed>) = 4 [pid 5246] +++ exited with 0 +++ [pid 5245] <... sync resumed>) = 0 [pid 5242] +++ exited with 0 +++ [pid 5056] <... close resumed>) = 0 [pid 5055] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] rmdir("./14" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5247] <... futex resumed>) = 1 [pid 5245] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5243] <... futex resumed>) = 0 [pid 5247] sync( [pid 5244] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] exit_group(0 [pid 5055] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5245] +++ exited with 0 +++ [pid 5244] <... futex resumed>) = 0 [pid 5243] <... exit_group resumed>) = ? [pid 5056] <... rmdir resumed>) = 0 [pid 5244] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5243] +++ exited with 0 +++ [pid 5056] mkdir("./15", 0777 [pid 5055] unlink("./14/binderfs" [pid 5058] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] <... unlink resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5057] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] getdents64(3, [pid 5058] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 3 [pid 5055] close(3 [pid 5057] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5057] newfstatat(3, "", [pid 5055] rmdir("./14" [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5247] <... sync resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5247] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] mkdir("./15", 0777 [pid 5247] <... futex resumed>) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5247] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] exit_group(0 [pid 5247] <... futex resumed>) = ? [pid 5244] <... exit_group resumed>) = ? [pid 5058] getdents64(3, [pid 5057] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5055] <... mkdir resumed>) = 0 [pid 5249] <... write resumed>) = 524288 [pid 5247] +++ exited with 0 +++ [pid 5244] +++ exited with 0 +++ [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... close resumed>) = 0 [pid 5058] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5059] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] munmap(0x7f92368d1000, 138412032 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5250 attached [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5249] <... munmap resumed>) = 0 [pid 5059] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5250] set_robust_list(0x555555d616a0, 24 [pid 5059] getdents64(3, [pid 5250] <... set_robust_list resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5249] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5250 [pid 5249] <... openat resumed>) = 4 [pid 5250] chdir("./15" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5250] <... chdir resumed>) = 0 [pid 5249] ioctl(4, LOOP_SET_FD, 3 [pid 5055] close(3 [pid 5059] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... prctl resumed>) = 0 [pid 5250] setpgid(0, 0 [pid 5057] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5250] <... setpgid resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5251 attached [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... umount2 resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = 0 [pid 5251] set_robust_list(0x555555d616a0, 24 [pid 5250] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5251 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5250] write(3, "1000", 4 [pid 5251] chdir("./15" [pid 5250] <... write resumed>) = 4 [pid 5249] <... ioctl resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 4 [pid 5251] <... chdir resumed>) = 0 [pid 5250] close(3 [pid 5249] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(4, "", [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... close resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5059] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] <... prctl resumed>) = 0 [pid 5250] symlink("/dev/binderfs", "./binderfs" [pid 5249] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] newfstatat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5250] <... symlink resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... openat resumed>) = 4 [pid 5057] getdents64(4, [pid 5250] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... mkdir resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5058] umount2("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5250] <... futex resumed>) = 0 [pid 5249] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] setpgid(0, 0 [pid 5250] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5251] <... setpgid resumed>) = 0 [pid 5250] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] openat(AT_FDCWD, "./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] close(4 [pid 5250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] getdents64(4, [pid 5058] <... openat resumed>) = 4 [pid 5057] <... close resumed>) = 0 [pid 5250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] newfstatat(4, "", [pid 5057] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5251] <... openat resumed>) = 3 [pid 5250] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] getdents64(4, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5251] write(3, "1000", 4 [pid 5250] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] getdents64(4, [pid 5250] <... mprotect resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [ 63.326757][ T5249] loop5: detected capacity change from 0 to 1024 [pid 5057] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5250] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5249] <... mount resumed>) = 0 [pid 5059] close(4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... write resumed>) = 4 [pid 5250] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] getdents64(4, [pid 5251] close(3 [pid 5250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5251] <... close resumed>) = 0 ./strace-static-x86_64: Process 5252 attached [pid 5251] symlink("/dev/binderfs", "./binderfs" [pid 5249] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... close resumed>) = 0 [pid 5058] close(4 [pid 5057] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5252] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5251] <... symlink resumed>) = 0 [pid 5250] <... clone3 resumed> => {parent_tid=[5252]}, 88) = 5252 [pid 5249] <... openat resumed>) = 3 [pid 5059] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] <... rseq resumed>) = 0 [pid 5251] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] rt_sigprocmask(SIG_SETMASK, [], [pid 5249] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... rmdir resumed>) = 0 [pid 5058] rmdir("./14/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] unlink("./14/binderfs" [pid 5252] set_robust_list(0x7f923ecf19a0, 24 [pid 5251] <... futex resumed>) = 0 [pid 5250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] <... chdir resumed>) = 0 [pid 5252] <... set_robust_list resumed>) = 0 [pid 5251] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5250] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] ioctl(4, LOOP_CLR_FD [pid 5059] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5252] rt_sigprocmask(SIG_SETMASK, [], [pid 5251] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5250] <... futex resumed>) = 0 [pid 5058] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5250] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5252] memfd_create("syzkaller", 0 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5249] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5057] getdents64(3, [pid 5252] <... memfd_create resumed>) = 3 [pid 5251] <... mmap resumed>) = 0x7f923ecd1000 [pid 5249] close(4 [pid 5059] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5251] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5249] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] close(3 [pid 5249] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] unlink("./14/binderfs" [pid 5057] <... close resumed>) = 0 [pid 5252] <... mmap resumed>) = 0x7f92368d1000 [pid 5251] <... mprotect resumed>) = 0 [pid 5249] <... futex resumed>) = 1 [pid 5248] <... futex resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5058] unlink("./14/binderfs" [pid 5057] rmdir("./14" [pid 5251] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5249] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5251] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5248] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(3, [pid 5057] mkdir("./15", 0777 [pid 5252] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5249] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5248] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] close(3 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5253 attached [pid 5249] <... mknod resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] close(3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] rmdir("./14" [pid 5253] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5251] <... clone3 resumed> => {parent_tid=[5253]}, 88) = 5253 [pid 5249] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5253] <... rseq resumed>) = 0 [pid 5251] rt_sigprocmask(SIG_SETMASK, [], [pid 5249] <... futex resumed>) = 1 [pid 5248] <... futex resumed>) = 0 [pid 5059] mkdir("./15", 0777 [pid 5058] rmdir("./14" [pid 5253] set_robust_list(0x7f923ecf19a0, 24 [pid 5251] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5248] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5253] <... set_robust_list resumed>) = 0 [pid 5251] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5253] rt_sigprocmask(SIG_SETMASK, [], [pid 5251] <... futex resumed>) = 0 [pid 5248] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] mkdir("./15", 0777 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5252] <... write resumed>) = 524288 [pid 5251] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5253] memfd_create("syzkaller", 0 [pid 5252] munmap(0x7f92368d1000, 138412032 [pid 5249] <... open resumed>) = 4 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] close(3 [pid 5253] <... memfd_create resumed>) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5252] <... munmap resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] close(3) = 0 [pid 5249] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached [pid 5249] <... futex resumed>) = 1 [pid 5058] <... mkdir resumed>) = 0 [pid 5254] set_robust_list(0x555555d616a0, 24 [pid 5249] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] <... futex resumed>) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5254] <... set_robust_list resumed>) = 0 [pid 5248] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5254 ./strace-static-x86_64: Process 5255 attached [pid 5254] chdir("./15" [pid 5249] <... futex resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5255] set_robust_list(0x555555d616a0, 24 [pid 5254] <... chdir resumed>) = 0 [pid 5252] <... openat resumed>) = 4 [pid 5249] sync( [pid 5248] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5255 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5255] <... set_robust_list resumed>) = 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] chdir("./15" [pid 5058] <... openat resumed>) = 3 [pid 5254] <... prctl resumed>) = 0 [pid 5252] ioctl(4, LOOP_SET_FD, 3 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5255] <... chdir resumed>) = 0 [pid 5254] setpgid(0, 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5254] <... setpgid resumed>) = 0 [pid 5255] <... prctl resumed>) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] close(3 [pid 5255] setpgid(0, 0 [pid 5254] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5255] <... setpgid resumed>) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] write(3, "1000", 4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5254] <... write resumed>) = 4 [pid 5255] <... openat resumed>) = 3 [pid 5254] close(3) = 0 [pid 5255] write(3, "1000", 4 [pid 5254] symlink("/dev/binderfs", "./binderfs" [pid 5255] <... write resumed>) = 4 [pid 5254] <... symlink resumed>) = 0 [pid 5255] close(3) = 0 [pid 5255] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5254] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5255] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5255] <... futex resumed>) = 0 [pid 5254] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5252] <... ioctl resumed>) = 0 [pid 5255] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5249] <... sync resumed>) = 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5249] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5254] <... mmap resumed>) = 0x7f923ecd1000 [pid 5249] <... futex resumed>) = 1 [pid 5248] <... futex resumed>) = 0 [pid 5255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5254] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5249] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] exit_group(0 [pid 5255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] <... mprotect resumed>) = 0 [pid 5249] <... futex resumed>) = ? [pid 5248] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5256 attached [pid 5255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5253] <... write resumed>) = 524288 [pid 5252] close(3 [pid 5256] set_robust_list(0x555555d616a0, 24 [pid 5254] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] munmap(0x7f92368d1000, 138412032 [pid 5252] <... close resumed>) = 0 [pid 5249] +++ exited with 0 +++ [pid 5248] +++ exited with 0 +++ [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5256 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5256] chdir("./15" [pid 5255] <... mmap resumed>) = 0x7f923ecd1000 [pid 5254] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5252] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5256] <... chdir resumed>) = 0 [pid 5255] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5253] <... munmap resumed>) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] <... mprotect resumed>) = 0 [pid 5256] <... prctl resumed>) = 0 [pid 5255] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5254] <... clone3 resumed> => {parent_tid=[5257]}, 88) = 5257 [pid 5060] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5257 attached [pid 5256] setpgid(0, 0 [pid 5255] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] rt_sigprocmask(SIG_SETMASK, [], [pid 5252] <... mkdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5257] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5256] <... setpgid resumed>) = 0 [pid 5255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... openat resumed>) = 4 [pid 5060] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5258 attached [pid 5257] <... rseq resumed>) = 0 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... openat resumed>) = 3 [pid 5258] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5257] set_robust_list(0x7f923ecf19a0, 24 [pid 5256] <... openat resumed>) = 3 [pid 5255] <... clone3 resumed> => {parent_tid=[5258]}, 88) = 5258 [pid 5254] <... futex resumed>) = 0 [pid 5253] ioctl(4, LOOP_SET_FD, 3 [pid 5060] newfstatat(3, "", [pid 5258] <... rseq resumed>) = 0 [pid 5257] <... set_robust_list resumed>) = 0 [pid 5256] write(3, "1000", 4 [pid 5255] rt_sigprocmask(SIG_SETMASK, [], [pid 5254] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 63.475510][ T5252] loop1: detected capacity change from 0 to 1024 [pid 5258] set_robust_list(0x7f923ecf19a0, 24 [pid 5257] rt_sigprocmask(SIG_SETMASK, [], [pid 5255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] getdents64(3, [pid 5258] <... set_robust_list resumed>) = 0 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5255] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], [pid 5257] memfd_create("syzkaller", 0 [pid 5255] <... futex resumed>) = 0 [pid 5060] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] <... memfd_create resumed>) = 3 [pid 5255] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5258] memfd_create("syzkaller", 0 [pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5256] <... write resumed>) = 4 [pid 5258] <... memfd_create resumed>) = 3 [pid 5256] close(3 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5256] <... close resumed>) = 0 [pid 5252] <... mount resumed>) = 0 [pid 5258] <... mmap resumed>) = 0x7f92368d1000 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5252] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5256] <... symlink resumed>) = 0 [pid 5258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5252] <... openat resumed>) = 3 [pid 5256] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... ioctl resumed>) = 0 [pid 5256] <... futex resumed>) = 0 [pid 5252] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5253] close(3 [pid 5256] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5252] <... chdir resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5256] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5253] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5252] ioctl(4, LOOP_CLR_FD [pid 5256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... mkdir resumed>) = 0 [pid 5252] <... ioctl resumed>) = 0 [pid 5256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5253] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5252] close(4 [pid 5256] <... mmap resumed>) = 0x7f923ecd1000 [pid 5256] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5257] <... write resumed>) = 524288 [pid 5256] <... mprotect resumed>) = 0 [pid 5252] <... close resumed>) = 0 [pid 5256] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] <... mount resumed>) = 0 [pid 5252] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5252] <... futex resumed>) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5250] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5259 attached [pid 5253] <... openat resumed>) = 3 [pid 5252] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5250] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5256] <... clone3 resumed> => {parent_tid=[5259]}, 88) = 5259 [pid 5253] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5250] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] <... chdir resumed>) = 0 [pid 5259] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] ioctl(4, LOOP_CLR_FD [pid 5259] <... rseq resumed>) = 0 [pid 5258] <... write resumed>) = 524288 [pid 5256] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] set_robust_list(0x7f923ecf19a0, 24 [pid 5257] munmap(0x7f92368d1000, 138412032 [pid 5256] <... futex resumed>) = 0 [pid 5253] <... ioctl resumed>) = 0 [pid 5252] <... mknod resumed>) = 0 [pid 5259] <... set_robust_list resumed>) = 0 [pid 5256] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5253] close(4 [pid 5252] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] <... close resumed>) = 0 [pid 5259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] <... futex resumed>) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5259] memfd_create("syzkaller", 0 [pid 5257] <... munmap resumed>) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5252] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] munmap(0x7f92368d1000, 138412032 [pid 5257] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5251] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5259] <... memfd_create resumed>) = 3 [pid 5258] <... munmap resumed>) = 0 [pid 5257] <... openat resumed>) = 4 [pid 5253] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5251] <... futex resumed>) = 0 [pid 5250] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5257] ioctl(4, LOOP_SET_FD, 3 [pid 5060] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5258] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5251] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5259] <... mmap resumed>) = 0x7f92368d1000 [pid 5258] <... openat resumed>) = 4 [pid 5060] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 63.519457][ T5253] loop0: detected capacity change from 0 to 1024 [pid 5258] ioctl(4, LOOP_SET_FD, 3 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5253] <... mknod resumed>) = 0 [pid 5252] <... open resumed>) = 4 [pid 5060] getdents64(4, [pid 5258] <... ioctl resumed>) = 0 [pid 5253] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 1 [pid 5252] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5250] <... futex resumed>) = 0 [pid 5251] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5250] <... futex resumed>) = 0 [pid 5253] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5252] sync( [pid 5251] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... write resumed>) = 524288 [pid 5258] close(3 [pid 5257] <... ioctl resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5259] munmap(0x7f92368d1000, 138412032 [pid 5258] <... close resumed>) = 0 [pid 5257] close(3 [pid 5060] getdents64(4, [pid 5258] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5257] <... close resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5258] <... mkdir resumed>) = 0 [pid 5257] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] close(4 [pid 5258] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5257] <... mkdir resumed>) = 0 [pid 5253] <... open resumed>) = 4 [pid 5060] <... close resumed>) = 0 [pid 5257] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5259] <... munmap resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5253] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5253] <... futex resumed>) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5060] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] <... openat resumed>) = 4 [pid 5253] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5259] ioctl(4, LOOP_SET_FD, 3 [pid 5253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5251] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5253] sync( [pid 5251] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 63.576612][ T5258] loop4: detected capacity change from 0 to 1024 [ 63.584047][ T5257] loop2: detected capacity change from 0 to 1024 [pid 5257] <... mount resumed>) = 0 [pid 5060] unlink("./15/binderfs") = 0 [pid 5257] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5257] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(3, [pid 5257] <... chdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5258] <... mount resumed>) = 0 [pid 5257] ioctl(4, LOOP_CLR_FD [pid 5060] close(3 [pid 5257] <... ioctl resumed>) = 0 [pid 5258] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... close resumed>) = 0 [pid 5258] <... openat resumed>) = 3 [pid 5257] close(4) = 0 [pid 5257] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5257] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./15" [pid 5259] <... ioctl resumed>) = 0 [pid 5258] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] <... futex resumed>) = 0 [pid 5258] <... chdir resumed>) = 0 [pid 5257] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5254] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] ioctl(4, LOOP_CLR_FD [pid 5250] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... rmdir resumed>) = 0 [pid 5259] close(3 [pid 5258] <... ioctl resumed>) = 0 [pid 5259] <... close resumed>) = 0 [pid 5258] close(4 [pid 5060] mkdir("./16", 0777 [pid 5259] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5258] <... close resumed>) = 0 [pid 5257] <... mknod resumed>) = 0 [pid 5258] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... mkdir resumed>) = 0 [pid 5257] <... futex resumed>) = 1 [pid 5258] <... futex resumed>) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5258] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] <... futex resumed>) = 0 [pid 5254] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5255] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = 0 [pid 5258] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5257] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5255] <... futex resumed>) = 0 [pid 5254] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... mknod resumed>) = 0 [pid 5259] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5258] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5258] <... futex resumed>) = 1 [pid 5257] <... open resumed>) = 4 [pid 5255] <... futex resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5258] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(3 [pid 5258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [ 63.617563][ T5259] loop3: detected capacity change from 0 to 1024 [pid 5060] <... close resumed>) = 0 [pid 5258] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5257] <... futex resumed>) = 1 [pid 5255] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 0 [pid 5257] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] <... futex resumed>) = 0 [pid 5257] sync( [pid 5254] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5260 attached [pid 5259] <... mount resumed>) = 0 [pid 5258] <... open resumed>) = 4 [pid 5253] <... sync resumed>) = 0 [pid 5252] <... sync resumed>) = 0 [pid 5260] set_robust_list(0x555555d616a0, 24 [pid 5259] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5258] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] exit_group(0 [pid 5250] exit_group(0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5260 [pid 5260] <... set_robust_list resumed>) = 0 [pid 5259] <... openat resumed>) = 3 [pid 5253] <... futex resumed>) = ? [pid 5252] <... futex resumed>) = ? [pid 5251] <... exit_group resumed>) = ? [pid 5250] <... exit_group resumed>) = ? [pid 5260] chdir("./16" [pid 5259] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5258] <... futex resumed>) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5253] +++ exited with 0 +++ [pid 5252] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ [pid 5250] +++ exited with 0 +++ [pid 5260] <... chdir resumed>) = 0 [pid 5259] <... chdir resumed>) = 0 [pid 5258] sync( [pid 5255] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5259] ioctl(4, LOOP_CLR_FD [pid 5255] <... futex resumed>) = 0 [pid 5260] <... prctl resumed>) = 0 [pid 5259] <... ioctl resumed>) = 0 [pid 5255] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5260] setpgid(0, 0 [pid 5259] close(4 [pid 5260] <... setpgid resumed>) = 0 [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... sync resumed>) = 0 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... restart_syscall resumed>) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5259] <... close resumed>) = 0 [pid 5056] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 3 [pid 5260] <... openat resumed>) = 3 [pid 5259] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... sync resumed>) = 0 [pid 5257] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5056] newfstatat(3, "", [pid 5055] <... openat resumed>) = 3 [pid 5260] write(3, "1000", 4 [pid 5259] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5254] exit_group(0 [pid 5259] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5256] <... futex resumed>) = 0 [pid 5254] <... exit_group resumed>) = ? [pid 5257] <... futex resumed>) = ? [pid 5260] <... write resumed>) = 4 [pid 5257] +++ exited with 0 +++ [pid 5260] close(3 [pid 5256] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5260] <... close resumed>) = 0 [pid 5259] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5258] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] newfstatat(3, "", [pid 5258] <... futex resumed>) = 1 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5258] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] getdents64(3, [pid 5255] <... futex resumed>) = 0 [pid 5255] exit_group(0 [pid 5056] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5260] symlink("/dev/binderfs", "./binderfs" [pid 5055] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] <... symlink resumed>) = 0 [pid 5258] <... futex resumed>) = ? [pid 5255] <... exit_group resumed>) = ? [pid 5258] +++ exited with 0 +++ [pid 5255] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5059] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5259] <... mknod resumed>) = 0 [pid 5059] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(3, [pid 5254] +++ exited with 0 +++ [pid 5260] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5259] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5057] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5059] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5260] <... futex resumed>) = 0 [pid 5259] <... futex resumed>) = 1 [pid 5256] <... futex resumed>) = 0 [pid 5260] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5259] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5256] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5260] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5256] <... futex resumed>) = 0 [pid 5260] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5256] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5260] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5259] <... open resumed>) = 4 [pid 5259] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] <... mprotect resumed>) = 0 [pid 5259] <... futex resumed>) = 1 [pid 5256] <... futex resumed>) = 0 [pid 5256] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] sync( [pid 5256] <... futex resumed>) = 0 [pid 5256] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = 0 [pid 5260] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5056] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5260] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5259] <... sync resumed>) = 0 [pid 5059] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5259] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5259] <... futex resumed>) = 1 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5256] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5261 attached [pid 5260] <... clone3 resumed> => {parent_tid=[5261]}, 88) = 5261 [pid 5259] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5261] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5260] rt_sigprocmask(SIG_SETMASK, [], [pid 5256] exit_group(0 [pid 5260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5256] <... exit_group resumed>) = ? [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5261] <... rseq resumed>) = 0 [pid 5260] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = ? [pid 5261] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5260] <... futex resumed>) = 0 [pid 5259] +++ exited with 0 +++ [pid 5256] +++ exited with 0 +++ [pid 5059] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5261] rt_sigprocmask(SIG_SETMASK, [], [pid 5260] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = 0 [pid 5261] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5261] memfd_create("syzkaller", 0 [pid 5059] <... openat resumed>) = 4 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... openat resumed>) = 4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(4, "", [pid 5057] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(4, "", [pid 5055] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5261] <... memfd_create resumed>) = 3 [pid 5059] getdents64(4, [pid 5057] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] getdents64(4, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(4, [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] close(4 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5261] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5056] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] newfstatat(3, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(4 [pid 5058] getdents64(3, [pid 5057] getdents64(4, [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5056] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(4, "", [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] getdents64(4, [pid 5056] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5057] close(4 [pid 5056] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5055] getdents64(4, [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] unlink("./15/binderfs" [pid 5058] <... umount2 resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] unlink("./15/binderfs" [pid 5055] close(4 [pid 5059] <... unlink resumed>) = 0 [pid 5058] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5055] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] newfstatat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5059] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(3 [pid 5055] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5058] umount2("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] rmdir("./15" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./15" [pid 5055] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5059] <... rmdir resumed>) = 0 [pid 5057] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] mkdir("./16", 0777 [pid 5058] openat(AT_FDCWD, "./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... rmdir resumed>) = 0 [pid 5055] unlink("./15/binderfs" [pid 5059] <... mkdir resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5056] mkdir("./16", 0777) = 0 [pid 5058] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5058] getdents64(4, [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] close(3 [pid 5059] <... openat resumed>) = 3 [pid 5058] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] rmdir("./15" [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] close(4 [pid 5057] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5056] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5059] close(3 [pid 5058] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] rmdir("./15/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... rmdir resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5261] <... write resumed>) = 524288 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5263 attached ./strace-static-x86_64: Process 5262 attached [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5262 [pid 5058] unlink("./15/binderfs" [pid 5057] unlink("./15/binderfs" [pid 5055] mkdir("./16", 0777 [pid 5263] set_robust_list(0x555555d616a0, 24 [pid 5262] set_robust_list(0x555555d616a0, 24 [pid 5261] munmap(0x7f92368d1000, 138412032 [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5263] <... set_robust_list resumed>) = 0 [pid 5262] <... set_robust_list resumed>) = 0 [pid 5058] getdents64(3, [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5263 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5263] chdir("./16" [pid 5262] chdir("./16" [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5261] <... munmap resumed>) = 0 [pid 5057] getdents64(3, [pid 5055] <... openat resumed>) = 3 [pid 5263] <... chdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] close(3 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5261] <... openat resumed>) = 4 [pid 5057] <... close resumed>) = 0 [pid 5263] <... prctl resumed>) = 0 [pid 5058] close(3 [pid 5057] rmdir("./15" [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5263] setpgid(0, 0 [pid 5262] <... chdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] rmdir("./15" [pid 5057] <... rmdir resumed>) = 0 [pid 5055] close(3 [pid 5261] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] mkdir("./16", 0777 [pid 5263] <... setpgid resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5262] <... prctl resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5263] <... openat resumed>) = 3 [pid 5262] setpgid(0, 0 [pid 5058] mkdir("./16", 0777 [pid 5263] write(3, "1000", 4 [pid 5262] <... setpgid resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5264 attached [pid 5263] <... write resumed>) = 4 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] set_robust_list(0x555555d616a0, 24 [pid 5263] close(3 [pid 5262] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5264 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5263] <... close resumed>) = 0 [pid 5262] write(3, "1000", 4 [pid 5264] chdir("./16" [pid 5263] symlink("/dev/binderfs", "./binderfs" [pid 5262] <... write resumed>) = 4 [pid 5264] <... chdir resumed>) = 0 [pid 5263] <... symlink resumed>) = 0 [pid 5262] close(3 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5263] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... close resumed>) = 0 [pid 5264] <... prctl resumed>) = 0 [pid 5263] <... futex resumed>) = 0 [pid 5262] symlink("/dev/binderfs", "./binderfs" [pid 5264] setpgid(0, 0 [pid 5263] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5262] <... symlink resumed>) = 0 [pid 5264] <... setpgid resumed>) = 0 [pid 5263] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5262] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] <... openat resumed>) = 3 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5262] <... futex resumed>) = 0 [pid 5264] write(3, "1000", 4 [pid 5263] <... mmap resumed>) = 0x7f923ecd1000 [pid 5262] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5264] <... write resumed>) = 4 [pid 5263] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5262] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5264] close(3 [pid 5263] <... mprotect resumed>) = 0 [pid 5262] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5264] <... close resumed>) = 0 [pid 5263] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5264] symlink("/dev/binderfs", "./binderfs" [pid 5262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5264] <... symlink resumed>) = 0 [pid 5263] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5262] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] close(3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5264] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5262] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... close resumed>) = 0 [pid 5264] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5264] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5262] <... mprotect resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5265 attached [pid 5264] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5263] <... clone3 resumed> => {parent_tid=[5265]}, 88) = 5265 [pid 5262] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5265] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5263] rt_sigprocmask(SIG_SETMASK, [], [pid 5265] <... rseq resumed>) = 0 [pid 5264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5262] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5266 attached [pid 5265] set_robust_list(0x7f923ecf19a0, 24 [pid 5264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5263] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5267 attached [pid 5266] set_robust_list(0x555555d616a0, 24 [pid 5265] <... set_robust_list resumed>) = 0 [pid 5264] <... mmap resumed>) = 0x7f923ecd1000 [pid 5263] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5266 [pid 5267] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5266] <... set_robust_list resumed>) = 0 [pid 5265] rt_sigprocmask(SIG_SETMASK, [], [pid 5264] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5263] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5262] <... clone3 resumed> => {parent_tid=[5267]}, 88) = 5267 [pid 5267] <... rseq resumed>) = 0 [pid 5266] chdir("./16" [pid 5265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5264] <... mprotect resumed>) = 0 [pid 5262] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5267] set_robust_list(0x7f923ecf19a0, 24 [pid 5266] <... chdir resumed>) = 0 [pid 5265] memfd_create("syzkaller", 0 [pid 5264] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] close(3 [pid 5267] rt_sigprocmask(SIG_SETMASK, [], [pid 5266] <... prctl resumed>) = 0 [pid 5265] <... memfd_create resumed>) = 3 [pid 5264] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5262] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5266] setpgid(0, 0 [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5262] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5267] memfd_create("syzkaller", 0 [pid 5266] <... setpgid resumed>) = 0 [pid 5265] <... mmap resumed>) = 0x7f92368d1000 [pid 5261] <... ioctl resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5267] <... memfd_create resumed>) = 3 [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5262] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5266] <... openat resumed>) = 3 [pid 5266] write(3, "1000", 4) = 4 [pid 5266] close(3) = 0 [pid 5266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5269 [pid 5261] close(3./strace-static-x86_64: Process 5269 attached ./strace-static-x86_64: Process 5268 attached [pid 5267] <... mmap resumed>) = 0x7f92368d1000 [pid 5261] <... close resumed>) = 0 [pid 5261] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5269] set_robust_list(0x555555d616a0, 24 [pid 5268] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5268] <... rseq resumed>) = 0 [pid 5266] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] <... clone3 resumed> => {parent_tid=[5268]}, 88) = 5268 [pid 5261] <... mkdir resumed>) = 0 [pid 5268] set_robust_list(0x7f923ecf19a0, 24 [pid 5266] <... futex resumed>) = 0 [pid 5264] rt_sigprocmask(SIG_SETMASK, [], [pid 5269] chdir("./16" [pid 5268] <... set_robust_list resumed>) = 0 [pid 5266] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5266] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5264] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5265] <... write resumed>) = 524288 [pid 5264] <... futex resumed>) = 0 [pid 5261] <... mount resumed>) = 0 [pid 5269] <... chdir resumed>) = 0 [pid 5268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5261] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5268] memfd_create("syzkaller", 0 [pid 5269] <... prctl resumed>) = 0 [pid 5269] setpgid(0, 0 [pid 5268] <... memfd_create resumed>) = 3 [pid 5266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5264] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5269] <... setpgid resumed>) = 0 [pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5268] <... mmap resumed>) = 0x7f92368d1000 [pid 5261] <... openat resumed>) = 3 [ 63.877370][ T5261] loop5: detected capacity change from 0 to 1024 [pid 5269] <... openat resumed>) = 3 [pid 5268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5267] <... write resumed>) = 524288 [pid 5266] <... mmap resumed>) = 0x7f923ecd1000 [pid 5261] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5266] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5265] munmap(0x7f92368d1000, 138412032 [pid 5266] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5265] <... munmap resumed>) = 0 [pid 5269] write(3, "1000", 4 [pid 5261] <... chdir resumed>) = 0 [pid 5269] <... write resumed>) = 4 [pid 5261] ioctl(4, LOOP_CLR_FD [pid 5269] close(3) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs" [pid 5266] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5265] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5261] <... ioctl resumed>) = 0 [pid 5266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5265] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5270 attached [pid 5269] <... symlink resumed>) = 0 [pid 5265] ioctl(4, LOOP_SET_FD, 3 [pid 5261] close(4 [pid 5270] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5269] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] munmap(0x7f92368d1000, 138412032 [pid 5266] <... clone3 resumed> => {parent_tid=[5270]}, 88) = 5270 [pid 5270] <... rseq resumed>) = 0 [pid 5270] set_robust_list(0x7f923ecf19a0, 24 [pid 5266] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] <... munmap resumed>) = 0 [pid 5266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5266] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] rt_sigprocmask(SIG_SETMASK, [], [pid 5266] <... futex resumed>) = 0 [pid 5270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5266] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5270] memfd_create("syzkaller", 0) = 3 [pid 5267] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5269] <... futex resumed>) = 0 [pid 5268] <... write resumed>) = 524288 [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5267] <... openat resumed>) = 4 [pid 5270] <... mmap resumed>) = 0x7f92368d1000 [pid 5269] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5268] munmap(0x7f92368d1000, 138412032 [pid 5267] ioctl(4, LOOP_SET_FD, 3 [pid 5261] <... close resumed>) = 0 [pid 5269] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5268] <... munmap resumed>) = 0 [pid 5261] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5268] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5261] <... futex resumed>) = 1 [pid 5269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5268] <... openat resumed>) = 4 [pid 5261] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] <... futex resumed>) = 0 [pid 5269] <... mmap resumed>) = 0x7f923ecd1000 [pid 5269] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5268] ioctl(4, LOOP_SET_FD, 3 [pid 5260] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... write resumed>) = 524288 [pid 5269] <... mprotect resumed>) = 0 [pid 5267] <... ioctl resumed>) = 0 [pid 5265] <... ioctl resumed>) = 0 [pid 5260] <... futex resumed>) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5261] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5267] close(3 [pid 5265] close(3 [pid 5269] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5267] <... close resumed>) = 0 [pid 5265] <... close resumed>) = 0 [pid 5267] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [ 63.946797][ T5265] loop1: detected capacity change from 0 to 1024 [ 63.959627][ T5267] loop4: detected capacity change from 0 to 1024 [pid 5265] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5269] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5267] <... mkdir resumed>) = 0 [pid 5265] <... mkdir resumed>) = 0 [pid 5261] <... mknod resumed>) = 0 [pid 5260] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5265] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5270] munmap(0x7f92368d1000, 138412032) = 0 [pid 5269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5267] <... mount resumed>) = 0 [pid 5261] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5271 attached [pid 5270] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5267] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5261] <... futex resumed>) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5271] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5270] <... openat resumed>) = 4 [pid 5269] <... clone3 resumed> => {parent_tid=[5271]}, 88) = 5271 [pid 5268] <... ioctl resumed>) = 0 [pid 5267] <... openat resumed>) = 3 [pid 5265] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5261] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5260] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... rseq resumed>) = 0 [pid 5269] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5265] <... openat resumed>) = 3 [pid 5271] set_robust_list(0x7f923ecf19a0, 24 [pid 5270] ioctl(4, LOOP_SET_FD, 3 [pid 5269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5268] close(3 [pid 5267] <... chdir resumed>) = 0 [pid 5261] <... open resumed>) = 4 [pid 5260] <... futex resumed>) = 0 [pid 5271] <... set_robust_list resumed>) = 0 [pid 5265] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5260] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] rt_sigprocmask(SIG_SETMASK, [], [pid 5269] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... close resumed>) = 0 [pid 5267] ioctl(4, LOOP_CLR_FD [pid 5265] <... chdir resumed>) = 0 [pid 5261] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5269] <... futex resumed>) = 0 [pid 5268] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5261] <... futex resumed>) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5269] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5265] ioctl(4, LOOP_CLR_FD [pid 5260] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... ioctl resumed>) = 0 [pid 5267] close(4 [pid 5268] <... mkdir resumed>) = 0 [pid 5267] <... close resumed>) = 0 [pid 5260] <... futex resumed>) = 0 [pid 5265] <... ioctl resumed>) = 0 [pid 5261] sync( [pid 5267] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5265] close(4 [pid 5267] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] memfd_create("syzkaller", 0 [pid 5268] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5265] <... close resumed>) = 0 [pid 5265] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... futex resumed>) = 0 [pid 5271] <... memfd_create resumed>) = 3 [pid 5265] <... futex resumed>) = 1 [pid 5262] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... futex resumed>) = 0 [pid 5265] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] <... futex resumed>) = 1 [pid 5267] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5262] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... mknod resumed>) = 0 [pid 5267] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5263] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... futex resumed>) = 0 [pid 5267] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] <... futex resumed>) = 0 [pid 5263] <... futex resumed>) = 1 [pid 5262] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5270] <... ioctl resumed>) = 0 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5263] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... futex resumed>) = 0 [pid 5271] <... mmap resumed>) = 0x7f92368d1000 [pid 5270] close(3 [pid 5267] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5265] <... mknod resumed>) = 0 [pid 5262] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... close resumed>) = 0 [pid 5267] <... open resumed>) = 4 [pid 5265] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5265] <... futex resumed>) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5265] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5263] <... futex resumed>) = 0 [pid 5270] <... mkdir resumed>) = 0 [pid 5267] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5263] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] <... mount resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5265] <... open resumed>) = 4 [pid 5262] <... futex resumed>) = 0 [pid 5270] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5268] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5267] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [ 63.988883][ T5268] loop0: detected capacity change from 0 to 1024 [ 64.019891][ T5270] loop3: detected capacity change from 0 to 1024 [pid 5262] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5268] <... openat resumed>) = 3 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] <... futex resumed>) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 0 [pid 5268] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5267] sync( [pid 5265] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... mount resumed>) = 0 [pid 5268] <... chdir resumed>) = 0 [pid 5265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5263] <... futex resumed>) = 0 [pid 5261] <... sync resumed>) = 0 [pid 5271] <... write resumed>) = 524288 [pid 5268] ioctl(4, LOOP_CLR_FD [pid 5265] sync( [pid 5263] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5270] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5268] <... ioctl resumed>) = 0 [pid 5271] munmap(0x7f92368d1000, 138412032 [pid 5270] <... openat resumed>) = 3 [pid 5268] close(4 [pid 5261] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5268] <... close resumed>) = 0 [pid 5271] <... munmap resumed>) = 0 [pid 5268] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] exit_group(0 [pid 5271] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5268] <... futex resumed>) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5261] <... futex resumed>) = ? [pid 5260] <... exit_group resumed>) = ? [pid 5270] <... chdir resumed>) = 0 [pid 5264] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] +++ exited with 0 +++ [pid 5270] ioctl(4, LOOP_CLR_FD [pid 5264] <... futex resumed>) = 0 [pid 5270] <... ioctl resumed>) = 0 [pid 5264] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] close(4) = 0 [pid 5270] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... openat resumed>) = 4 [pid 5268] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5267] <... sync resumed>) = 0 [pid 5265] <... sync resumed>) = 0 [pid 5260] +++ exited with 0 +++ [pid 5267] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5265] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5265] <... futex resumed>) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5265] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] exit_group(0 [pid 5262] <... futex resumed>) = 0 [pid 5271] ioctl(4, LOOP_SET_FD, 3 [pid 5267] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] <... futex resumed>) = ? [pid 5263] <... exit_group resumed>) = ? [pid 5262] exit_group(0 [pid 5060] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... ioctl resumed>) = 0 [pid 5267] <... futex resumed>) = ? [pid 5265] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ [pid 5262] <... exit_group resumed>) = ? [pid 5270] <... futex resumed>) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5270] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5266] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5268] <... mknod resumed>) = 0 [pid 5267] +++ exited with 0 +++ [pid 5266] <... futex resumed>) = 0 [pid 5262] +++ exited with 0 +++ [pid 5060] <... openat resumed>) = 3 [pid 5268] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] close(3 [pid 5270] <... mknod resumed>) = 0 [pid 5268] <... futex resumed>) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5056] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5268] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5264] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5056] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5264] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5271] <... close resumed>) = 0 [pid 5270] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5270] <... futex resumed>) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5270] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5271] <... mkdir resumed>) = 0 [pid 5270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5271] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5270] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5268] <... open resumed>) = 4 [pid 5266] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5270] <... open resumed>) = 4 [pid 5268] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 3 [pid 5056] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5268] <... futex resumed>) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5059] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5270] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] sync( [pid 5264] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5270] <... futex resumed>) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5264] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5264] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] sync( [pid 5266] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = 0 [pid 5271] <... mount resumed>) = 0 [pid 5271] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [ 64.113825][ T5271] loop2: detected capacity change from 0 to 1024 [pid 5271] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5271] ioctl(4, LOOP_CLR_FD) = 0 [pid 5060] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] <... close resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... umount2 resumed>) = 0 [pid 5271] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5269] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5269] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5269] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 4 [pid 5060] newfstatat(4, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(4, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] <... mknod resumed>) = 0 [pid 5270] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5270] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5270] <... futex resumed>) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5266] exit_group(0) = ? [pid 5271] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5271] <... futex resumed>) = 1 [pid 5270] +++ exited with 0 +++ [pid 5269] <... futex resumed>) = 0 [pid 5266] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5271] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... sync resumed>) = 0 [pid 5060] close(4 [pid 5056] newfstatat(4, "", [pid 5269] <... futex resumed>) = 0 [pid 5271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5269] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5268] <... futex resumed>) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5060] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5056] getdents64(4, [pid 5271] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5268] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] exit_group(0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5264] <... exit_group resumed>) = ? [pid 5268] <... futex resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5058] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5060] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5058] newfstatat(3, "", [pid 5264] +++ exited with 0 +++ [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./16/binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] <... unlink resumed>) = 0 [pid 5058] getdents64(3, [pid 5059] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(4, [pid 5060] getdents64(3, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(3 [pid 5055] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5271] <... open resumed>) = 4 [pid 5060] <... close resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... umount2 resumed>) = 0 [pid 5056] close(4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5056] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] rmdir("./16" [pid 5059] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5271] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(4, "", [pid 5056] unlink("./16/binderfs" [pid 5271] <... futex resumed>) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5269] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5060] mkdir("./17", 0777 [pid 5271] sync( [pid 5269] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... mkdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] <... unlink resumed>) = 0 [pid 5058] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5058] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] getdents64(3, [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] newfstatat(4, "", [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... close resumed>) = 0 [pid 5060] close(3 [pid 5056] rmdir("./16" [pid 5060] <... close resumed>) = 0 [pid 5058] getdents64(4, [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5056] mkdir("./17", 0777 [pid 5058] getdents64(4, [pid 5056] <... mkdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5272 attached [pid 5058] close(4 [pid 5272] set_robust_list(0x555555d616a0, 24 [pid 5058] <... close resumed>) = 0 [pid 5272] <... set_robust_list resumed>) = 0 [pid 5058] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5272] chdir("./17" [pid 5058] <... rmdir resumed>) = 0 [pid 5272] <... chdir resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5272 [pid 5058] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] getdents64(4, [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5271] <... sync resumed>) = 0 [pid 5059] close(4 [pid 5056] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5271] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5059] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5272] <... prctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5272] setpgid(0, 0 [pid 5058] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5059] <... rmdir resumed>) = 0 [pid 5056] close(3 [pid 5271] <... futex resumed>) = 0 [pid 5269] exit_group(0 [pid 5056] <... close resumed>) = 0 [pid 5271] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... futex resumed>) = ? [pid 5269] <... exit_group resumed>) = ? [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5272] <... setpgid resumed>) = 0 [pid 5271] +++ exited with 0 +++ [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] unlink("./16/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5272] <... openat resumed>) = 3 [pid 5058] <... unlink resumed>) = 0 [pid 5055] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5272] write(3, "1000", 4 [pid 5058] getdents64(3, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5272] <... write resumed>) = 4 [pid 5269] +++ exited with 0 +++ [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5273 attached [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5273 [pid 5273] set_robust_list(0x555555d616a0, 24 [pid 5272] close(3 [pid 5058] close(3 [pid 5055] <... openat resumed>) = 4 [pid 5057] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5272] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(4, "", [pid 5273] <... set_robust_list resumed>) = 0 [pid 5272] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] rmdir("./16" [pid 5057] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5273] chdir("./17" [pid 5272] <... symlink resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5272] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] mkdir("./17", 0777 [pid 5057] newfstatat(3, "", [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5273] <... chdir resumed>) = 0 [pid 5272] <... futex resumed>) = 0 [pid 5059] unlink("./16/binderfs" [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5272] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... unlink resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5272] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] close(4 [pid 5272] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5272] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5273] <... prctl resumed>) = 0 [pid 5272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] getdents64(3, [pid 5058] close(3 [pid 5057] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... rmdir resumed>) = 0 [pid 5273] setpgid(0, 0 [pid 5272] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... close resumed>) = 0 [pid 5055] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] <... setpgid resumed>) = 0 [pid 5059] close(3 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... close resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5274 attached [pid 5273] <... openat resumed>) = 3 [pid 5272] <... mprotect resumed>) = 0 [pid 5059] rmdir("./16" [pid 5274] set_robust_list(0x555555d616a0, 24 [pid 5273] write(3, "1000", 4 [pid 5272] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5274] <... set_robust_list resumed>) = 0 [pid 5273] <... write resumed>) = 4 [pid 5272] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5274 [pid 5274] chdir("./17" [pid 5273] close(3 [pid 5272] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5274] <... chdir resumed>) = 0 [pid 5273] <... close resumed>) = 0 [pid 5055] unlink("./16/binderfs" [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] symlink("/dev/binderfs", "./binderfs" [pid 5272] <... clone3 resumed> => {parent_tid=[5275]}, 88) = 5275 [pid 5055] <... unlink resumed>) = 0 [pid 5272] rt_sigprocmask(SIG_SETMASK, [], [pid 5274] <... prctl resumed>) = 0 [pid 5272] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5275 attached [pid 5274] setpgid(0, 0 [pid 5273] <... symlink resumed>) = 0 [pid 5055] getdents64(3, [pid 5275] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5274] <... setpgid resumed>) = 0 [pid 5272] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5275] <... rseq resumed>) = 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5275] set_robust_list(0x7f923ecf19a0, 24 [pid 5274] <... openat resumed>) = 3 [pid 5272] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] mkdir("./17", 0777 [pid 5055] <... close resumed>) = 0 [pid 5275] <... set_robust_list resumed>) = 0 [pid 5274] write(3, "1000", 4 [pid 5273] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./16" [pid 5275] rt_sigprocmask(SIG_SETMASK, [], [pid 5274] <... write resumed>) = 4 [pid 5055] <... rmdir resumed>) = 0 [pid 5275] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5274] close(3 [pid 5273] <... futex resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5055] mkdir("./17", 0777 [pid 5275] memfd_create("syzkaller", 0 [pid 5274] <... close resumed>) = 0 [pid 5273] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... mkdir resumed>) = 0 [pid 5275] <... memfd_create resumed>) = 3 [pid 5274] symlink("/dev/binderfs", "./binderfs" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5274] <... symlink resumed>) = 0 [pid 5273] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5275] <... mmap resumed>) = 0x7f92368d1000 [pid 5274] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] newfstatat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5274] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5274] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] close(3 [pid 5055] close(3 [pid 5274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5273] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] umount2("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5276 attached [pid 5275] <... write resumed>) = 524288 [pid 5274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5273] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5276] set_robust_list(0x555555d616a0, 24 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5276 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5274] <... mmap resumed>) = 0x7f923ecd1000 ./strace-static-x86_64: Process 5277 attached [pid 5276] chdir("./17" [pid 5274] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] openat(AT_FDCWD, "./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5277] set_robust_list(0x555555d616a0, 24 [pid 5276] <... chdir resumed>) = 0 [pid 5274] <... mprotect resumed>) = 0 [pid 5273] <... mprotect resumed>) = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5277] <... set_robust_list resumed>) = 0 [pid 5276] <... prctl resumed>) = 0 [pid 5273] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5277] chdir("./17" [pid 5276] setpgid(0, 0 [pid 5273] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5276] <... setpgid resumed>) = 0 [pid 5274] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5277] <... chdir resumed>) = 0 [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5277 [pid 5057] newfstatat(4, "", [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5276] <... openat resumed>) = 3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5278 attached [pid 5277] <... prctl resumed>) = 0 [pid 5274] <... clone3 resumed> => {parent_tid=[5278]}, 88) = 5278 [pid 5278] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5277] setpgid(0, 0 [pid 5276] write(3, "1000", 4 [pid 5274] rt_sigprocmask(SIG_SETMASK, [], [pid 5273] <... clone3 resumed> => {parent_tid=[5279]}, 88) = 5279 [pid 5057] getdents64(4, ./strace-static-x86_64: Process 5279 attached [pid 5278] <... rseq resumed>) = 0 [pid 5277] <... setpgid resumed>) = 0 [pid 5276] <... write resumed>) = 4 [pid 5275] munmap(0x7f92368d1000, 138412032 [pid 5274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5273] rt_sigprocmask(SIG_SETMASK, [], [pid 5279] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5278] set_robust_list(0x7f923ecf19a0, 24 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5276] close(3 [pid 5274] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5278] <... set_robust_list resumed>) = 0 [pid 5277] <... openat resumed>) = 3 [pid 5276] <... close resumed>) = 0 [pid 5279] <... rseq resumed>) = 0 [pid 5275] <... munmap resumed>) = 0 [pid 5274] <... futex resumed>) = 0 [pid 5273] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(4, [pid 5279] set_robust_list(0x7f923ecf19a0, 24 [pid 5278] rt_sigprocmask(SIG_SETMASK, [], [pid 5277] write(3, "1000", 4 [pid 5276] symlink("/dev/binderfs", "./binderfs" [pid 5275] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5274] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5279] <... set_robust_list resumed>) = 0 [pid 5278] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5277] <... write resumed>) = 4 [pid 5276] <... symlink resumed>) = 0 [pid 5275] <... openat resumed>) = 4 [pid 5273] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] close(4 [pid 5279] rt_sigprocmask(SIG_SETMASK, [], [pid 5278] memfd_create("syzkaller", 0 [pid 5277] close(3 [pid 5276] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... close resumed>) = 0 [pid 5279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5278] <... memfd_create resumed>) = 3 [pid 5277] <... close resumed>) = 0 [pid 5276] <... futex resumed>) = 0 [pid 5057] rmdir("./16/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5279] memfd_create("syzkaller", 0 [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5277] symlink("/dev/binderfs", "./binderfs" [pid 5278] <... mmap resumed>) = 0x7f92368d1000 [pid 5279] <... memfd_create resumed>) = 3 [pid 5277] <... symlink resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5277] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5276] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5276] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5276] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5276] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5277] <... futex resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5276] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5277] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5277] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5276] <... clone3 resumed> => {parent_tid=[5280]}, 88) = 5280 [pid 5277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5276] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] unlink("./16/binderfs"./strace-static-x86_64: Process 5280 attached [pid 5278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5280] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5278] <... write resumed>) = 524288 [pid 5277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5276] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5280] <... rseq resumed>) = 0 [pid 5279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5280] set_robust_list(0x7f923ecf19a0, 24 [pid 5276] <... futex resumed>) = 0 [pid 5275] <... ioctl resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5280] <... set_robust_list resumed>) = 0 [pid 5277] <... mmap resumed>) = 0x7f923ecd1000 [pid 5276] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5275] close(3 [pid 5057] close(3 [pid 5277] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5275] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5275] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] rmdir("./16" [pid 5280] rt_sigprocmask(SIG_SETMASK, [], [pid 5275] <... mkdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] mkdir("./17", 0777 [pid 5280] memfd_create("syzkaller", 0 [pid 5279] <... write resumed>) = 524288 [pid 5277] <... mprotect resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5280] <... memfd_create resumed>) = 3 [pid 5275] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5280] <... mmap resumed>) = 0x7f92368d1000 [pid 5278] munmap(0x7f92368d1000, 138412032 [pid 5057] <... openat resumed>) = 3 [pid 5280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5277] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5278] <... munmap resumed>) = 0 [pid 5277] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5278] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5275] <... mount resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5278] <... openat resumed>) = 4 [ 64.378336][ T5275] loop5: detected capacity change from 0 to 1024 [pid 5278] ioctl(4, LOOP_SET_FD, 3 [pid 5277] <... clone3 resumed> => {parent_tid=[5281]}, 88) = 5281 ./strace-static-x86_64: Process 5281 attached [pid 5279] munmap(0x7f92368d1000, 138412032 [pid 5277] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5280] <... write resumed>) = 524288 [pid 5279] <... munmap resumed>) = 0 [pid 5277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5275] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] close(3 [pid 5281] <... rseq resumed>) = 0 [pid 5281] set_robust_list(0x7f923ecf19a0, 24 [pid 5277] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5057] <... close resumed>) = 0 [pid 5277] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5281] <... set_robust_list resumed>) = 0 [pid 5281] rt_sigprocmask(SIG_SETMASK, [], [pid 5279] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5282 attached [pid 5279] <... openat resumed>) = 4 [pid 5281] memfd_create("syzkaller", 0 [pid 5279] ioctl(4, LOOP_SET_FD, 3 [pid 5275] <... openat resumed>) = 3 [pid 5282] set_robust_list(0x555555d616a0, 24 [pid 5278] <... ioctl resumed>) = 0 [pid 5275] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5282] <... set_robust_list resumed>) = 0 [pid 5278] close(3 [pid 5275] <... chdir resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5282 [pid 5278] <... close resumed>) = 0 [pid 5275] ioctl(4, LOOP_CLR_FD [pid 5282] chdir("./17" [pid 5278] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5275] <... ioctl resumed>) = 0 [pid 5282] <... chdir resumed>) = 0 [pid 5278] <... mkdir resumed>) = 0 [pid 5275] close(4 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5278] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5275] <... close resumed>) = 0 [pid 5282] <... prctl resumed>) = 0 [pid 5275] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] setpgid(0, 0 [pid 5280] munmap(0x7f92368d1000, 138412032 [pid 5275] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5282] <... setpgid resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... openat resumed>) = 3 [pid 5281] <... memfd_create resumed>) = 3 [pid 5280] <... munmap resumed>) = 0 [pid 5278] <... mount resumed>) = 0 [pid 5275] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5272] <... futex resumed>) = 0 [pid 5278] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5272] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5282] write(3, "1000", 4 [pid 5281] <... mmap resumed>) = 0x7f92368d1000 [pid 5280] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5278] <... openat resumed>) = 3 [pid 5282] <... write resumed>) = 4 [pid 5280] <... openat resumed>) = 4 [pid 5278] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5275] <... mknod resumed>) = 0 [pid 5282] close(3 [pid 5280] ioctl(4, LOOP_SET_FD, 3 [pid 5278] <... chdir resumed>) = 0 [pid 5275] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... close resumed>) = 0 [pid 5281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5279] <... ioctl resumed>) = 0 [pid 5279] close(3) = 0 [pid 5279] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5282] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] ioctl(4, LOOP_CLR_FD [pid 5275] <... futex resumed>) = 1 [pid 5282] <... futex resumed>) = 0 [pid 5279] <... mkdir resumed>) = 0 [pid 5278] <... ioctl resumed>) = 0 [pid 5275] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5279] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5278] close(4) = 0 [pid 5278] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5282] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5278] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5272] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5278] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5274] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5275] <... futex resumed>) = 0 [pid 5272] <... futex resumed>) = 1 [pid 5282] <... mmap resumed>) = 0x7f923ecd1000 [pid 5275] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5272] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5281] <... write resumed>) = 524288 [pid 5280] <... ioctl resumed>) = 0 [pid 5275] <... open resumed>) = 4 [pid 5282] <... mprotect resumed>) = 0 [pid 5280] close(3 [pid 5278] <... mknod resumed>) = 0 [pid 5275] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5280] <... close resumed>) = 0 [pid 5282] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5280] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5275] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5280] <... mkdir resumed>) = 0 [pid 5278] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5283 attached ) = 0 [pid 5283] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5282] <... clone3 resumed> => {parent_tid=[5283]}, 88) = 5283 [pid 5275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5272] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... rseq resumed>) = 0 [pid 5282] rt_sigprocmask(SIG_SETMASK, [], [pid 5280] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5279] <... mount resumed>) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5275] sync( [pid 5274] <... futex resumed>) = 0 [pid 5283] set_robust_list(0x7f923ecf19a0, 24 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5278] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] <... set_robust_list resumed>) = 0 [pid 5282] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... mount resumed>) = 0 [pid 5279] <... openat resumed>) = 3 [pid 5278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5274] <... futex resumed>) = 0 [pid 5283] rt_sigprocmask(SIG_SETMASK, [], [pid 5282] <... futex resumed>) = 0 [pid 5281] munmap(0x7f92368d1000, 138412032 [pid 5280] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5279] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5278] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5274] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5282] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5281] <... munmap resumed>) = 0 [pid 5280] <... openat resumed>) = 3 [pid 5279] <... chdir resumed>) = 0 [pid 5283] memfd_create("syzkaller", 0 [pid 5279] ioctl(4, LOOP_CLR_FD [pid 5278] <... open resumed>) = 4 [pid 5283] <... memfd_create resumed>) = 3 [pid 5280] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5279] <... ioctl resumed>) = 0 [pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5280] <... chdir resumed>) = 0 [pid 5279] close(4 [pid 5281] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 64.424713][ T5278] loop3: detected capacity change from 0 to 1024 [ 64.441902][ T5279] loop1: detected capacity change from 0 to 1024 [ 64.460425][ T5280] loop0: detected capacity change from 0 to 1024 [pid 5278] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] <... mmap resumed>) = 0x7f92368d1000 [pid 5281] <... openat resumed>) = 4 [pid 5280] ioctl(4, LOOP_CLR_FD [pid 5279] <... close resumed>) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5280] <... ioctl resumed>) = 0 [pid 5278] sync( [pid 5274] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] ioctl(4, LOOP_SET_FD, 3 [pid 5280] close(4 [pid 5279] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... close resumed>) = 0 [pid 5279] <... futex resumed>) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5280] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5280] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5279] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5276] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... sync resumed>) = 0 [pid 5273] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] <... write resumed>) = 524288 [pid 5281] <... ioctl resumed>) = 0 [pid 5278] <... sync resumed>) = 0 [pid 5276] <... futex resumed>) = 0 [pid 5275] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = 0 [pid 5281] close(3 [pid 5276] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... close resumed>) = 0 [pid 5280] <... mknod resumed>) = 0 [pid 5279] <... mknod resumed>) = 0 [pid 5278] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5281] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5278] <... futex resumed>) = 1 [pid 5275] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] <... futex resumed>) = 0 [pid 5272] exit_group(0 [pid 5278] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] exit_group(0 [pid 5281] <... mkdir resumed>) = 0 [pid 5278] <... futex resumed>) = ? [pid 5275] <... futex resumed>) = ? [pid 5274] <... exit_group resumed>) = ? [pid 5272] <... exit_group resumed>) = ? [pid 5280] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] +++ exited with 0 +++ [pid 5275] +++ exited with 0 +++ [pid 5274] +++ exited with 0 +++ [pid 5272] +++ exited with 0 +++ [pid 5280] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5280] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5276] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5276] <... futex resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5283] munmap(0x7f92368d1000, 138412032 [pid 5281] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5280] <... open resumed>) = 4 [pid 5279] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... restart_syscall resumed>) = 0 [pid 5279] <... futex resumed>) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5279] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5273] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5273] <... futex resumed>) = 0 [pid 5279] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5273] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5279] <... open resumed>) = 4 [pid 5283] <... munmap resumed>) = 0 [pid 5279] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5279] <... futex resumed>) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5273] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5283] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5280] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] sync( [pid 5273] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5058] getdents64(3, [pid 5280] <... futex resumed>) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5273] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(3, "", [pid 5283] <... openat resumed>) = 4 [pid 5280] sync( [pid 5276] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [ 64.512879][ T5281] loop4: detected capacity change from 0 to 1024 [pid 5283] ioctl(4, LOOP_SET_FD, 3 [pid 5276] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5058] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5281] <... mount resumed>) = 0 [pid 5276] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5281] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5281] <... openat resumed>) = 3 [pid 5281] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5281] ioctl(4, LOOP_CLR_FD) = 0 [pid 5283] <... ioctl resumed>) = 0 [pid 5281] close(4 [pid 5279] <... sync resumed>) = 0 [pid 5281] <... close resumed>) = 0 [pid 5279] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5281] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... sync resumed>) = 0 [pid 5273] exit_group(0 [pid 5281] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5273] <... exit_group resumed>) = ? [pid 5280] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5280] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5276] <... futex resumed>) = 0 [pid 5283] close(3 [pid 5280] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... close resumed>) = 0 [pid 5281] <... mknod resumed>) = 0 [pid 5276] exit_group(0 [pid 5283] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5281] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = ? [pid 5279] +++ exited with 0 +++ [pid 5276] <... exit_group resumed>) = ? [pid 5273] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5280] +++ exited with 0 +++ [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5283] <... mkdir resumed>) = 0 [pid 5281] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5276] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5281] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5277] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5060] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... restart_syscall resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 64.568165][ T5283] loop2: detected capacity change from 0 to 1024 [pid 5283] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5277] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5060] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(3, "", [pid 5055] newfstatat(3, "", [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5281] <... open resumed>) = 4 [pid 5277] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5055] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5283] <... mount resumed>) = 0 [pid 5281] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5283] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... openat resumed>) = 4 [pid 5055] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] <... openat resumed>) = 3 [pid 5281] <... futex resumed>) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5056] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5281] sync( [pid 5277] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(4, "", [pid 5277] <... futex resumed>) = 0 [pid 5277] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5283] <... chdir resumed>) = 0 [pid 5283] ioctl(4, LOOP_CLR_FD [pid 5058] getdents64(4, [pid 5283] <... ioctl resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5283] close(4 [pid 5058] getdents64(4, [pid 5283] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5283] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(4 [pid 5283] <... futex resumed>) = 1 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5283] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5282] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5282] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] <... futex resumed>) = 0 [pid 5282] <... futex resumed>) = 1 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5283] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5060] getdents64(4, [pid 5058] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5282] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] unlink("./17/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5055] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, [pid 5055] <... openat resumed>) = 4 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(3, [pid 5055] newfstatat(4, "", [pid 5060] close(4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... close resumed>) = 0 [pid 5060] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5283] <... mknod resumed>) = 0 [pid 5283] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] close(3 [pid 5055] getdents64(4, [pid 5281] <... sync resumed>) = 0 [pid 5281] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5281] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] exit_group(0 [pid 5281] <... futex resumed>) = ? [pid 5277] <... exit_group resumed>) = ? [pid 5281] +++ exited with 0 +++ [pid 5277] +++ exited with 0 +++ [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5283] <... futex resumed>) = 1 [pid 5058] <... close resumed>) = 0 [pid 5283] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] <... futex resumed>) = 0 [pid 5060] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] rmdir("./17" [pid 5283] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5282] <... futex resumed>) = 0 [pid 5056] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5282] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5059] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] mkdir("./18", 0777 [pid 5056] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] unlink("./17/binderfs" [pid 5056] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(3, "", [pid 5055] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] unlink("./17/binderfs" [pid 5059] getdents64(3, [pid 5283] <... open resumed>) = 4 [pid 5060] getdents64(3, [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... openat resumed>) = 4 [pid 5055] <... unlink resumed>) = 0 [pid 5283] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] close(3 [pid 5058] <... openat resumed>) = 3 [pid 5055] getdents64(3, [pid 5283] <... futex resumed>) = 1 [pid 5282] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] newfstatat(4, "", [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5283] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./17" [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] close(3 [pid 5283] sync( [pid 5282] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... rmdir resumed>) = 0 [pid 5058] close(3 [pid 5056] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] rmdir("./17") = 0 [pid 5060] mkdir("./18", 0777 [pid 5059] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... close resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] mkdir("./18", 0777 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] close(4 [pid 5055] <... mkdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5059] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5284 attached [pid 5060] <... mkdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5284 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] set_robust_list(0x555555d616a0, 24 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5284] <... set_robust_list resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] newfstatat(4, "", [pid 5056] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5284] chdir("./18" [pid 5060] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(3 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] unlink("./17/binderfs" [pid 5055] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... unlink resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5285 attached [pid 5059] getdents64(4, [pid 5056] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5284] <... chdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] close(4 [pid 5056] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5286 [pid 5284] <... prctl resumed>) = 0 [pid 5283] <... sync resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5056] rmdir("./17"./strace-static-x86_64: Process 5286 attached [pid 5285] set_robust_list(0x555555d616a0, 24 [pid 5284] setpgid(0, 0 [pid 5283] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5285 [pid 5059] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5286] set_robust_list(0x555555d616a0, 24 [pid 5285] <... set_robust_list resumed>) = 0 [pid 5284] <... setpgid resumed>) = 0 [pid 5282] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5056] <... rmdir resumed>) = 0 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5285] chdir("./18" [pid 5059] <... rmdir resumed>) = 0 [pid 5282] exit_group(0 [pid 5286] chdir("./18" [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] <... exit_group resumed>) = ? [pid 5283] <... futex resumed>) = ? [pid 5056] mkdir("./18", 0777 [pid 5286] <... chdir resumed>) = 0 [pid 5285] <... chdir resumed>) = 0 [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] <... prctl resumed>) = 0 [pid 5286] setpgid(0, 0 [pid 5285] <... prctl resumed>) = 0 [pid 5286] <... setpgid resumed>) = 0 [pid 5285] setpgid(0, 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5285] <... setpgid resumed>) = 0 [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] <... openat resumed>) = 3 [pid 5284] <... openat resumed>) = 3 [pid 5059] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5059] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5283] +++ exited with 0 +++ [pid 5282] +++ exited with 0 +++ [pid 5286] write(3, "1000", 4 [pid 5285] <... openat resumed>) = 3 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5286] <... write resumed>) = 4 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... openat resumed>) = 3 [pid 5286] close(3 [pid 5285] write(3, "1000", 4 [pid 5284] write(3, "1000", 4 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5286] <... close resumed>) = 0 [pid 5285] <... write resumed>) = 4 [pid 5284] <... write resumed>) = 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5286] symlink("/dev/binderfs", "./binderfs" [pid 5285] close(3 [pid 5286] <... symlink resumed>) = 0 [pid 5285] <... close resumed>) = 0 [pid 5284] close(3 [pid 5059] unlink("./17/binderfs" [pid 5057] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5284] <... close resumed>) = 0 [pid 5285] symlink("/dev/binderfs", "./binderfs" [pid 5284] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5286] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... symlink resumed>) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5284] <... symlink resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5285] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5285] <... futex resumed>) = 0 [pid 5286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5285] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5286] <... mmap resumed>) = 0x7f923ecd1000 ./strace-static-x86_64: Process 5287 attached [pid 5286] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5285] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5287] set_robust_list(0x555555d616a0, 24 [pid 5286] <... mprotect resumed>) = 0 [pid 5285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5287] <... set_robust_list resumed>) = 0 [pid 5285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5287] chdir("./18" [pid 5286] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] getdents64(3, [pid 5287] <... chdir resumed>) = 0 [pid 5285] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5285] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] close(3 [pid 5287] <... prctl resumed>) = 0 [pid 5286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5285] <... mprotect resumed>) = 0 [pid 5284] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] newfstatat(3, "", [pid 5059] <... close resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5287 ./strace-static-x86_64: Process 5288 attached [pid 5287] setpgid(0, 0 [pid 5284] <... futex resumed>) = 0 [pid 5059] rmdir("./17" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5284] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5287] <... setpgid resumed>) = 0 [pid 5286] <... clone3 resumed> => {parent_tid=[5288]}, 88) = 5288 [pid 5285] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... rmdir resumed>) = 0 [pid 5284] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5288] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] rt_sigprocmask(SIG_SETMASK, [], [pid 5285] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] getdents64(3, [pid 5287] <... openat resumed>) = 3 [pid 5286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5286] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5287] write(3, "1000", 4 [pid 5286] <... futex resumed>) = 0 [pid 5284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5289 attached [pid 5288] <... rseq resumed>) = 0 [pid 5287] <... write resumed>) = 4 [pid 5286] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5285] <... clone3 resumed> => {parent_tid=[5289]}, 88) = 5289 [pid 5284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5289] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5288] set_robust_list(0x7f923ecf19a0, 24 [pid 5287] close(3 [pid 5285] rt_sigprocmask(SIG_SETMASK, [], [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] mkdir("./18", 0777 [pid 5289] <... rseq resumed>) = 0 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5287] <... close resumed>) = 0 [pid 5285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5284] <... mmap resumed>) = 0x7f923ecd1000 [pid 5289] set_robust_list(0x7f923ecf19a0, 24 [pid 5288] rt_sigprocmask(SIG_SETMASK, [], [pid 5285] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... set_robust_list resumed>) = 0 [pid 5288] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5289] rt_sigprocmask(SIG_SETMASK, [], [pid 5287] symlink("/dev/binderfs", "./binderfs" [pid 5285] <... futex resumed>) = 0 [pid 5289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5288] memfd_create("syzkaller", 0 [pid 5287] <... symlink resumed>) = 0 [pid 5285] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5289] memfd_create("syzkaller", 0 [pid 5287] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] <... memfd_create resumed>) = 3 [pid 5287] <... futex resumed>) = 0 [pid 5287] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5289] <... memfd_create resumed>) = 3 [pid 5287] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5287] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5284] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... mkdir resumed>) = 0 [pid 5287] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] <... mprotect resumed>) = 0 [pid 5289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5288] <... mmap resumed>) = 0x7f92368d1000 [pid 5289] <... mmap resumed>) = 0x7f92368d1000 ./strace-static-x86_64: Process 5290 attached [pid 5290] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5290] set_robust_list(0x7f923ecf19a0, 24 [pid 5287] <... clone3 resumed> => {parent_tid=[5290]}, 88) = 5290 [pid 5290] <... set_robust_list resumed>) = 0 [pid 5287] rt_sigprocmask(SIG_SETMASK, [], [pid 5290] rt_sigprocmask(SIG_SETMASK, [], [pid 5287] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5287] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] memfd_create("syzkaller", 0 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] <... memfd_create resumed>) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5284] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... umount2 resumed>) = 0 [pid 5290] <... mmap resumed>) = 0x7f92368d1000 [pid 5289] <... write resumed>) = 524288 [pid 5288] <... write resumed>) = 524288 [pid 5284] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5289] munmap(0x7f92368d1000, 138412032 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] close(3) = 0 [pid 5284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5289] <... munmap resumed>) = 0 [pid 5289] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5288] munmap(0x7f92368d1000, 138412032 [pid 5057] newfstatat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5292 attached ./strace-static-x86_64: Process 5291 attached [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5289] <... openat resumed>) = 4 [pid 5288] <... munmap resumed>) = 0 [pid 5284] <... clone3 resumed> => {parent_tid=[5292]}, 88) = 5292 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5292] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5291] set_robust_list(0x555555d616a0, 24 [pid 5057] umount2("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] <... set_robust_list resumed>) = 0 [pid 5289] ioctl(4, LOOP_SET_FD, 3 [pid 5292] <... rseq resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5292] set_robust_list(0x7f923ecf19a0, 24 [pid 5284] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5291 [pid 5057] openat(AT_FDCWD, "./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5284] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... openat resumed>) = 4 [pid 5290] <... write resumed>) = 524288 [pid 5292] <... set_robust_list resumed>) = 0 [pid 5291] chdir("./18" [pid 5289] <... ioctl resumed>) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5057] newfstatat(4, "", [pid 5292] rt_sigprocmask(SIG_SETMASK, [], [pid 5289] close(3 [pid 5288] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5291] <... chdir resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5288] ioctl(4, LOOP_SET_FD, 3 [pid 5292] memfd_create("syzkaller", 0 [pid 5057] getdents64(4, [pid 5290] munmap(0x7f92368d1000, 138412032) = 0 [pid 5290] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5290] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5292] <... memfd_create resumed>) = 3 [pid 5289] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5289] <... mkdir resumed>) = 0 [pid 5057] close(4 [pid 5292] <... mmap resumed>) = 0x7f92368d1000 [pid 5291] <... prctl resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5291] setpgid(0, 0 [pid 5289] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5057] rmdir("./17/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5291] <... setpgid resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5291] <... openat resumed>) = 3 [pid 5291] write(3, "1000", 4 [pid 5288] <... ioctl resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5291] <... write resumed>) = 4 [pid 5288] close(3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5291] close(3 [pid 5288] <... close resumed>) = 0 [pid 5057] unlink("./17/binderfs" [pid 5291] <... close resumed>) = 0 [pid 5288] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5291] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5291] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5292] <... write resumed>) = 524288 [pid 5291] <... futex resumed>) = 0 [pid 5290] <... ioctl resumed>) = 0 [pid 5289] <... mount resumed>) = 0 [pid 5288] <... mkdir resumed>) = 0 [pid 5057] close(3 [pid 5289] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] <... close resumed>) = 0 [pid 5291] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5289] <... openat resumed>) = 3 [pid 5292] munmap(0x7f92368d1000, 138412032 [pid 5291] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5290] close(3 [ 64.841412][ T5289] loop5: detected capacity change from 0 to 1024 [ 64.861429][ T5288] loop0: detected capacity change from 0 to 1024 [ 64.866633][ T5290] loop1: detected capacity change from 0 to 1024 [pid 5288] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5289] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] rmdir("./17" [pid 5292] <... munmap resumed>) = 0 [pid 5291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5290] <... close resumed>) = 0 [pid 5289] <... chdir resumed>) = 0 [pid 5291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5290] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5289] ioctl(4, LOOP_CLR_FD [pid 5057] <... rmdir resumed>) = 0 [pid 5292] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5290] <... mkdir resumed>) = 0 [pid 5289] <... ioctl resumed>) = 0 [pid 5292] <... openat resumed>) = 4 [pid 5291] <... mmap resumed>) = 0x7f923ecd1000 [pid 5289] close(4 [pid 5292] ioctl(4, LOOP_SET_FD, 3 [pid 5291] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5292] <... ioctl resumed>) = 0 [pid 5291] <... mprotect resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5291] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5289] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5290] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5289] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5289] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5285] <... futex resumed>) = 0 [pid 5057] mkdir("./18", 0777 [pid 5291] <... clone3 resumed> => {parent_tid=[5293]}, 88) = 5293 [pid 5285] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5293 attached [pid 5291] rt_sigprocmask(SIG_SETMASK, [], [pid 5289] <... mknod resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5291] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5289] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] <... mount resumed>) = 0 [pid 5291] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... futex resumed>) = 1 [pid 5288] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5291] <... futex resumed>) = 0 [pid 5289] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] <... openat resumed>) = 3 [pid 5285] <... futex resumed>) = 0 [pid 5293] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5291] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5288] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5285] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5293] <... rseq resumed>) = 0 [pid 5288] <... chdir resumed>) = 0 [pid 5293] set_robust_list(0x7f923ecf19a0, 24 [pid 5289] <... futex resumed>) = 0 [pid 5288] ioctl(4, LOOP_CLR_FD [pid 5285] <... futex resumed>) = 1 [pid 5057] <... openat resumed>) = 3 [pid 5293] <... set_robust_list resumed>) = 0 [pid 5289] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5288] <... ioctl resumed>) = 0 [pid 5285] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5293] rt_sigprocmask(SIG_SETMASK, [], [pid 5292] close(3 [pid 5288] close(4 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5293] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5292] <... close resumed>) = 0 [pid 5290] <... mount resumed>) = 0 [pid 5288] <... close resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5293] memfd_create("syzkaller", 0 [pid 5292] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5290] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5288] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(3 [pid 5293] <... memfd_create resumed>) = 3 [pid 5292] <... mkdir resumed>) = 0 [pid 5290] <... openat resumed>) = 3 [pid 5289] <... open resumed>) = 4 [pid 5288] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5290] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5288] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5293] <... mmap resumed>) = 0x7f92368d1000 [pid 5290] <... chdir resumed>) = 0 [pid 5289] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5294 attached [pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5292] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5290] ioctl(4, LOOP_CLR_FD [pid 5289] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5294] set_robust_list(0x555555d616a0, 24 [pid 5290] <... ioctl resumed>) = 0 [pid 5289] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5294 [pid 5294] <... set_robust_list resumed>) = 0 [pid 5290] close(4 [pid 5289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5285] <... futex resumed>) = 0 [pid 5290] <... close resumed>) = 0 [pid 5290] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] chdir("./18" [pid 5289] sync( [pid 5285] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... chdir resumed>) = 0 [pid 5290] <... futex resumed>) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5290] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] <... mknod resumed>) = 0 [pid 5287] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5287] <... futex resumed>) = 0 [pid 5294] <... prctl resumed>) = 0 [pid 5290] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5287] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] setpgid(0, 0 [pid 5288] <... futex resumed>) = 1 [ 64.935318][ T5292] loop3: detected capacity change from 0 to 1024 [pid 5288] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] <... futex resumed>) = 0 [pid 5290] <... mknod resumed>) = 0 [pid 5286] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... setpgid resumed>) = 0 [pid 5288] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = 1 [pid 5288] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5286] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5292] <... mount resumed>) = 0 [pid 5294] <... openat resumed>) = 3 [pid 5292] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5288] <... open resumed>) = 4 [pid 5292] <... openat resumed>) = 3 [pid 5294] write(3, "1000", 4 [pid 5292] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5290] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... write resumed>) = 4 [pid 5292] <... chdir resumed>) = 0 [pid 5294] close(3 [pid 5292] ioctl(4, LOOP_CLR_FD [pid 5290] <... futex resumed>) = 1 [pid 5288] <... futex resumed>) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5294] <... close resumed>) = 0 [pid 5292] <... ioctl resumed>) = 0 [pid 5290] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5288] sync( [pid 5287] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] symlink("/dev/binderfs", "./binderfs" [pid 5293] <... write resumed>) = 524288 [pid 5292] close(4 [pid 5287] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5293] munmap(0x7f92368d1000, 138412032 [pid 5292] <... close resumed>) = 0 [pid 5286] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... symlink resumed>) = 0 [pid 5293] <... munmap resumed>) = 0 [pid 5292] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] <... futex resumed>) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5294] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5292] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] <... open resumed>) = 4 [pid 5284] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... futex resumed>) = 0 [pid 5293] <... openat resumed>) = 4 [pid 5292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 0 [pid 5294] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5293] ioctl(4, LOOP_SET_FD, 3 [pid 5292] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5290] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5290] <... futex resumed>) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5287] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5292] <... mknod resumed>) = 0 [pid 5290] sync( [pid 5287] <... futex resumed>) = 0 [pid 5294] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5292] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... sync resumed>) = 0 [pid 5287] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5292] <... futex resumed>) = 1 [pid 5289] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5294] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5292] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5289] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5284] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5289] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] exit_group(0 [pid 5284] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5295 attached [pid 5292] <... open resumed>) = 4 [pid 5289] <... futex resumed>) = ? [pid 5285] <... exit_group resumed>) = ? [pid 5284] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5294] <... clone3 resumed> => {parent_tid=[5295]}, 88) = 5295 [pid 5290] <... sync resumed>) = 0 [pid 5289] +++ exited with 0 +++ [pid 5288] <... sync resumed>) = 0 [pid 5295] <... rseq resumed>) = 0 [pid 5294] rt_sigprocmask(SIG_SETMASK, [], [pid 5292] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] +++ exited with 0 +++ [pid 5295] set_robust_list(0x7f923ecf19a0, 24 [pid 5294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5293] <... ioctl resumed>) = 0 [pid 5292] <... futex resumed>) = 1 [pid 5290] <... futex resumed>) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5284] <... futex resumed>) = 0 [pid 5295] <... set_robust_list resumed>) = 0 [pid 5294] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] close(3 [pid 5292] sync( [pid 5290] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] <... futex resumed>) = 1 [pid 5287] exit_group(0 [pid 5286] <... futex resumed>) = 0 [pid 5284] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5295] rt_sigprocmask(SIG_SETMASK, [], [pid 5294] <... futex resumed>) = 0 [pid 5293] <... close resumed>) = 0 [pid 5290] <... futex resumed>) = ? [pid 5287] <... exit_group resumed>) = ? [pid 5286] exit_group(0 [pid 5284] <... futex resumed>) = 0 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5294] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5293] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5290] +++ exited with 0 +++ [pid 5287] +++ exited with 0 +++ [pid 5286] <... exit_group resumed>) = ? [pid 5284] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... restart_syscall resumed>) = 0 [pid 5295] memfd_create("syzkaller", 0 [pid 5293] <... mkdir resumed>) = 0 [pid 5295] <... memfd_create resumed>) = 3 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5060] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5288] +++ exited with 0 +++ [pid 5286] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5293] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... restart_syscall resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5055] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5056] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5055] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] newfstatat(3, "", [pid 5055] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", [pid 5055] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5060] getdents64(3, [pid 5056] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [ 65.017613][ T5293] loop4: detected capacity change from 0 to 1024 [pid 5060] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5293] <... mount resumed>) = 0 [pid 5293] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] <... openat resumed>) = 3 [pid 5295] <... write resumed>) = 524288 [pid 5292] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5295] munmap(0x7f92368d1000, 138412032) = 0 [pid 5295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5292] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5292] <... futex resumed>) = 1 [pid 5056] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5284] <... futex resumed>) = 0 [pid 5060] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5292] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] exit_group(0 [pid 5056] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5292] <... futex resumed>) = ? [pid 5284] <... exit_group resumed>) = ? [pid 5295] ioctl(4, LOOP_SET_FD, 3 [pid 5293] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] <... chdir resumed>) = 0 [pid 5292] +++ exited with 0 +++ [pid 5284] +++ exited with 0 +++ [pid 5060] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5293] ioctl(4, LOOP_CLR_FD [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5055] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(4, "", [pid 5055] <... openat resumed>) = 4 [pid 5293] <... ioctl resumed>) = 0 [pid 5060] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] newfstatat(4, "", [pid 5058] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5293] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5293] <... close resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5293] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5058] newfstatat(3, "", [pid 5056] getdents64(4, [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5293] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, [pid 5293] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5056] close(4 [pid 5293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5293] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5291] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5056] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5291] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] getdents64(4, [pid 5058] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] close(4 [pid 5293] <... mknod resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5293] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5056] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5295] <... ioctl resumed>) = 0 [pid 5293] <... futex resumed>) = 1 [pid 5060] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5295] close(3 [pid 5293] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [pid 5295] <... close resumed>) = 0 [pid 5291] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5295] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5293] <... futex resumed>) = 0 [pid 5291] <... futex resumed>) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5295] <... mkdir resumed>) = 0 [pid 5293] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5291] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5060] unlink("./18/binderfs" [pid 5295] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... unlink resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5293] <... open resumed>) = 4 [pid 5060] getdents64(3, [pid 5056] unlink("./18/binderfs" [pid 5055] unlink("./18/binderfs" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] getdents64(3, [pid 5293] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./18" [pid 5295] <... mount resumed>) = 0 [pid 5293] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(3, [pid 5295] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5291] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... openat resumed>) = 3 [pid 5293] sync( [pid 5295] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5291] <... futex resumed>) = 0 [pid 5060] mkdir("./19", 0777 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5291] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] ioctl(4, LOOP_CLR_FD [pid 5060] <... mkdir resumed>) = 0 [pid 5056] close(3 [pid 5055] close(3 [pid 5295] <... ioctl resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5295] close(4 [pid 5058] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./18" [pid 5055] <... close resumed>) = 0 [pid 5295] <... close resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5295] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 3 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] rmdir("./18" [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] mkdir("./19", 0777 [pid 5295] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5294] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 65.108345][ T5295] loop2: detected capacity change from 0 to 1024 [pid 5055] <... rmdir resumed>) = 0 [pid 5294] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] mkdir("./19", 0777 [pid 5294] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5060] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... mkdir resumed>) = 0 [pid 5295] <... mknod resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] <... openat resumed>) = 4 [pid 5055] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5293] <... sync resumed>) = 0 [pid 5293] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5293] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] exit_group(0 [pid 5058] newfstatat(4, "", [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5296 attached [pid 5295] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5294] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = ? [pid 5291] <... exit_group resumed>) = ? [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(3 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5296] set_robust_list(0x555555d616a0, 24 [pid 5295] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5296 [pid 5056] <... close resumed>) = 0 [pid 5055] close(3 [pid 5296] <... set_robust_list resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... close resumed>) = 0 ./strace-static-x86_64: Process 5297 attached [pid 5296] chdir("./19" [pid 5295] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5294] <... futex resumed>) = 0 [pid 5293] +++ exited with 0 +++ [pid 5291] +++ exited with 0 +++ [pid 5058] getdents64(4, [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5297] set_robust_list(0x555555d616a0, 24 [pid 5296] <... chdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5294] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] getdents64(4, [pid 5297] <... set_robust_list resumed>) = 0 [pid 5296] <... prctl resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5297] chdir("./19" [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5297 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5298 [pid 5297] <... chdir resumed>) = 0 [pid 5296] setpgid(0, 0 [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5058] close(4 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] <... setpgid resumed>) = 0 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] <... close resumed>) = 0 ./strace-static-x86_64: Process 5298 attached [pid 5297] <... prctl resumed>) = 0 [pid 5296] <... openat resumed>) = 3 [pid 5295] <... open resumed>) = 4 [pid 5058] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5298] set_robust_list(0x555555d616a0, 24 [pid 5297] setpgid(0, 0 [pid 5296] write(3, "1000", 4 [pid 5059] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] <... set_robust_list resumed>) = 0 [pid 5297] <... setpgid resumed>) = 0 [pid 5296] <... write resumed>) = 4 [pid 5295] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... rmdir resumed>) = 0 [pid 5298] chdir("./19" [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] close(3 [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] <... chdir resumed>) = 0 [pid 5297] <... openat resumed>) = 3 [pid 5296] <... close resumed>) = 0 [pid 5295] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5294] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5297] write(3, "1000", 4 [pid 5296] symlink("/dev/binderfs", "./binderfs" [pid 5295] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5294] <... futex resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5058] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5298] <... prctl resumed>) = 0 [pid 5297] <... write resumed>) = 4 [pid 5296] <... symlink resumed>) = 0 [pid 5295] sync( [pid 5294] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5298] setpgid(0, 0 [pid 5297] close(3 [pid 5296] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5298] <... setpgid resumed>) = 0 [pid 5297] <... close resumed>) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] unlink("./18/binderfs" [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5297] symlink("/dev/binderfs", "./binderfs" [pid 5296] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5298] <... openat resumed>) = 3 [pid 5297] <... symlink resumed>) = 0 [pid 5296] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5298] write(3, "1000", 4 [pid 5296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] getdents64(3, [pid 5297] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5298] <... write resumed>) = 4 [pid 5297] <... futex resumed>) = 0 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5298] close(3) = 0 [pid 5298] symlink("/dev/binderfs", "./binderfs" [pid 5297] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5296] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] close(3 [pid 5297] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5296] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... close resumed>) = 0 [pid 5298] <... symlink resumed>) = 0 [pid 5295] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5298] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = 0 [pid 5295] <... futex resumed>) = 1 [pid 5294] <... futex resumed>) = 0 [pid 5298] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5295] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5294] exit_group(0 [pid 5298] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5295] <... futex resumed>) = ? [pid 5294] <... exit_group resumed>) = ? [pid 5298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5296] <... mprotect resumed>) = 0 [pid 5295] +++ exited with 0 +++ [pid 5294] +++ exited with 0 +++ [pid 5059] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] rmdir("./18" [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5296] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5296] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5298] <... mmap resumed>) = 0x7f923ecd1000 [pid 5297] <... mmap resumed>) = 0x7f923ecd1000 [pid 5296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5299 attached [pid 5298] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5297] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] mkdir("./19", 0777 [pid 5298] <... mprotect resumed>) = 0 [pid 5297] <... mprotect resumed>) = 0 [pid 5296] <... clone3 resumed> => {parent_tid=[5299]}, 88) = 5299 [pid 5296] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5296] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5296] <... futex resumed>) = 0 [pid 5057] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... mkdir resumed>) = 0 [pid 5296] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5299] <... rseq resumed>) = 0 [pid 5297] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5298] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(3, "", ./strace-static-x86_64: Process 5300 attached [pid 5059] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5298] <... clone3 resumed> => {parent_tid=[5300]}, 88) = 5300 [pid 5059] newfstatat(4, "", [pid 5057] getdents64(3, [pid 5300] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5299] set_robust_list(0x7f923ecf19a0, 24 [pid 5298] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5299] <... set_robust_list resumed>) = 0 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] <... rseq resumed>) = 0 [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] getdents64(4, [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5301 attached [pid 5300] set_robust_list(0x7f923ecf19a0, 24 [pid 5298] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5301] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5299] memfd_create("syzkaller", 0 [pid 5298] <... futex resumed>) = 0 [pid 5297] <... clone3 resumed> => {parent_tid=[5301]}, 88) = 5301 [pid 5059] getdents64(4, [pid 5301] <... rseq resumed>) = 0 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5299] <... memfd_create resumed>) = 3 [pid 5298] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5297] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5301] set_robust_list(0x7f923ecf19a0, 24 [pid 5300] rt_sigprocmask(SIG_SETMASK, [], [pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(4 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5297] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... mmap resumed>) = 0x7f92368d1000 [pid 5297] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5297] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] close(3 [pid 5059] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5301] <... set_robust_list resumed>) = 0 [pid 5300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5301] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] memfd_create("syzkaller", 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] <... memfd_create resumed>) = 3 [pid 5301] memfd_create("syzkaller", 0 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5302 attached [pid 5300] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5302] set_robust_list(0x555555d616a0, 24) = 0 [pid 5301] <... memfd_create resumed>) = 3 [pid 5059] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5057] <... umount2 resumed>) = 0 [pid 5302] chdir("./19" [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5302] <... chdir resumed>) = 0 [pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] unlink("./18/binderfs" [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5302 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5302] setpgid(0, 0 [pid 5059] <... unlink resumed>) = 0 [pid 5302] <... setpgid resumed>) = 0 [pid 5301] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] getdents64(3, [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] close(3 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5302] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5302] write(3, "1000", 4 [pid 5059] rmdir("./18" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5302] <... write resumed>) = 4 [pid 5299] <... write resumed>) = 524288 [pid 5059] <... rmdir resumed>) = 0 [pid 5302] close(3) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs" [pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5299] munmap(0x7f92368d1000, 138412032 [pid 5059] mkdir("./19", 0777 [pid 5057] umount2("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5302] <... symlink resumed>) = 0 [pid 5299] <... munmap resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5302] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... write resumed>) = 524288 [pid 5300] <... write resumed>) = 524288 [pid 5299] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] openat(AT_FDCWD, "./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5302] <... futex resumed>) = 0 [pid 5302] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5299] <... openat resumed>) = 4 [pid 5302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] munmap(0x7f92368d1000, 138412032 [pid 5299] ioctl(4, LOOP_SET_FD, 3 [pid 5059] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 4 [pid 5300] <... munmap resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] newfstatat(4, "", [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] close(3 [pid 5057] getdents64(4, [pid 5059] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] getdents64(4, [pid 5300] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5303 attached [pid 5300] <... openat resumed>) = 4 [pid 5057] close(4 [pid 5303] set_robust_list(0x555555d616a0, 24 [pid 5300] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... close resumed>) = 0 [pid 5303] <... set_robust_list resumed>) = 0 [pid 5302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5301] munmap(0x7f92368d1000, 138412032 [pid 5299] <... ioctl resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5303 [pid 5302] <... mmap resumed>) = 0x7f923ecd1000 [pid 5301] <... munmap resumed>) = 0 [pid 5299] close(3 [pid 5302] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] rmdir("./18/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5303] chdir("./19" [pid 5302] <... clone3 resumed> => {parent_tid=[5304]}, 88) = 5304 [pid 5299] <... close resumed>) = 0 [pid 5302] rt_sigprocmask(SIG_SETMASK, [], [pid 5299] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777./strace-static-x86_64: Process 5304 attached [pid 5303] <... chdir resumed>) = 0 [pid 5302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5301] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5300] <... ioctl resumed>) = 0 [pid 5299] <... mkdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5304] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5302] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5301] <... openat resumed>) = 4 [pid 5300] close(3 [pid 5057] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] <... rseq resumed>) = 0 [pid 5303] <... prctl resumed>) = 0 [pid 5302] <... futex resumed>) = 0 [pid 5301] ioctl(4, LOOP_SET_FD, 3 [pid 5300] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] set_robust_list(0x7f923ecf19a0, 24 [pid 5303] setpgid(0, 0 [pid 5302] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5300] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5299] <... mount resumed>) = 0 [pid 5299] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5303] <... setpgid resumed>) = 0 [pid 5301] <... ioctl resumed>) = 0 [pid 5300] <... mkdir resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5304] rt_sigprocmask(SIG_SETMASK, [], [pid 5301] close(3 [pid 5299] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5301] <... close resumed>) = 0 [pid 5301] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5299] <... chdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5304] memfd_create("syzkaller", 0 [pid 5303] <... openat resumed>) = 3 [pid 5301] <... mkdir resumed>) = 0 [pid 5299] ioctl(4, LOOP_CLR_FD [pid 5057] unlink("./18/binderfs" [pid 5299] <... ioctl resumed>) = 0 [pid 5304] <... memfd_create resumed>) = 3 [pid 5303] write(3, "1000", 4 [pid 5301] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5299] close(4 [pid 5057] <... unlink resumed>) = 0 [pid 5304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5303] <... write resumed>) = 4 [pid 5303] close(3 [pid 5057] getdents64(3, [pid 5303] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5303] symlink("/dev/binderfs", "./binderfs" [pid 5057] close(3 [pid 5304] <... mmap resumed>) = 0x7f92368d1000 [pid 5303] <... symlink resumed>) = 0 [pid 5300] <... mount resumed>) = 0 [pid 5299] <... close resumed>) = 0 [pid 5301] <... mount resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5303] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5300] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5299] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] rmdir("./18" [pid 5303] <... futex resumed>) = 0 [pid 5301] <... openat resumed>) = 3 [pid 5300] <... openat resumed>) = 3 [pid 5299] <... futex resumed>) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5303] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5301] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5296] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5300] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5303] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5301] <... chdir resumed>) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5301] ioctl(4, LOOP_CLR_FD [pid 5057] mkdir("./19", 0777 [pid 5296] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5301] <... ioctl resumed>) = 0 [pid 5300] <... chdir resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5301] close(4 [pid 5303] <... mmap resumed>) = 0x7f923ecd1000 [pid 5301] <... close resumed>) = 0 [pid 5303] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5301] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] ioctl(4, LOOP_CLR_FD [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5303] <... mprotect resumed>) = 0 [pid 5301] <... futex resumed>) = 1 [pid 5300] <... ioctl resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5303] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5301] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5297] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] close(4 [pid 5297] <... futex resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5303] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5301] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5297] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5300] <... close resumed>) = 0 [pid 5299] <... mknod resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5300] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5305 attached [pid 5303] <... clone3 resumed> => {parent_tid=[5305]}, 88) = 5305 [pid 5300] <... futex resumed>) = 1 [pid 5299] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = 0 [pid 5057] close(3 [pid 5305] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5304] <... write resumed>) = 524288 [pid 5303] rt_sigprocmask(SIG_SETMASK, [], [pid 5301] <... mknod resumed>) = 0 [pid 5300] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5299] <... futex resumed>) = 1 [pid 5298] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5305] <... rseq resumed>) = 0 [pid 5304] munmap(0x7f92368d1000, 138412032 [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5299] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] <... futex resumed>) = 0 [pid 5296] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] set_robust_list(0x7f923ecf19a0, 24 [pid 5304] <... munmap resumed>) = 0 [pid 5303] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5298] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5296] <... futex resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5305] <... set_robust_list resumed>) = 0 [pid 5304] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5303] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = 1 [pid 5299] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5297] <... futex resumed>) = 0 [pid 5296] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5304] <... openat resumed>) = 4 [pid 5297] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5306 attached [pid 5305] rt_sigprocmask(SIG_SETMASK, [], [pid 5303] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5301] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5297] <... futex resumed>) = 0 [pid 5306] set_robust_list(0x555555d616a0, 24 [pid 5305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5304] ioctl(4, LOOP_SET_FD, 3 [ 65.345270][ T5299] loop5: detected capacity change from 0 to 1024 [ 65.352290][ T5300] loop0: detected capacity change from 0 to 1024 [ 65.364490][ T5301] loop1: detected capacity change from 0 to 1024 [pid 5297] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... set_robust_list resumed>) = 0 [pid 5305] memfd_create("syzkaller", 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5306 [pid 5306] chdir("./19" [pid 5305] <... memfd_create resumed>) = 3 [pid 5306] <... chdir resumed>) = 0 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5306] <... prctl resumed>) = 0 [pid 5306] setpgid(0, 0) = 0 [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5306] write(3, "1000", 4) = 4 [pid 5306] close(3) = 0 [pid 5306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5306] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] <... write resumed>) = 524288 [pid 5304] <... ioctl resumed>) = 0 [pid 5301] <... open resumed>) = 4 [pid 5300] <... mknod resumed>) = 0 [pid 5299] <... open resumed>) = 4 [pid 5304] close(3 [pid 5306] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5304] <... close resumed>) = 0 [pid 5300] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5301] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5301] <... futex resumed>) = 1 [pid 5300] <... futex resumed>) = 1 [pid 5299] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] munmap(0x7f92368d1000, 138412032 [pid 5304] <... mkdir resumed>) = 0 [pid 5301] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5299] <... futex resumed>) = 1 [pid 5298] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5305] <... munmap resumed>) = 0 [pid 5301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5299] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5296] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... mmap resumed>) = 0x7f923ecd1000 [pid 5305] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5304] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5301] sync( [pid 5299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5298] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5296] <... futex resumed>) = 0 [pid 5306] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5305] <... openat resumed>) = 4 [pid 5300] <... open resumed>) = 4 [pid 5299] sync( [pid 5296] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... mprotect resumed>) = 0 [ 65.426472][ T5304] loop3: detected capacity change from 0 to 1024 [pid 5305] ioctl(4, LOOP_SET_FD, 3 [pid 5304] <... mount resumed>) = 0 [pid 5300] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5300] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] sync( [pid 5304] <... openat resumed>) = 3 [pid 5298] <... futex resumed>) = 0 [pid 5306] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5304] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5298] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5304] <... chdir resumed>) = 0 [pid 5304] ioctl(4, LOOP_CLR_FD) = 0 [pid 5304] close(4 [pid 5306] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5305] <... ioctl resumed>) = 0 [pid 5304] <... close resumed>) = 0 [pid 5301] <... sync resumed>) = 0 [pid 5300] <... sync resumed>) = 0 [pid 5299] <... sync resumed>) = 0 [pid 5306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5304] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] <... futex resumed>) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = 1 [pid 5300] <... futex resumed>) = 1 [pid 5299] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 0 [pid 5296] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5307 attached [pid 5306] <... clone3 resumed> => {parent_tid=[5307]}, 88) = 5307 [pid 5305] close(3 [pid 5304] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5299] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] exit_group(0 [pid 5297] exit_group(0 [pid 5296] exit_group(0 [pid 5307] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5306] rt_sigprocmask(SIG_SETMASK, [], [pid 5305] <... close resumed>) = 0 [pid 5300] <... futex resumed>) = ? [pid 5298] <... exit_group resumed>) = ? [pid 5297] <... exit_group resumed>) = ? [pid 5307] <... rseq resumed>) = 0 [pid 5306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] +++ exited with 0 +++ [pid 5307] set_robust_list(0x7f923ecf19a0, 24 [pid 5306] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... mkdir resumed>) = 0 [pid 5304] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5302] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = ? [pid 5299] <... futex resumed>) = ? [pid 5298] +++ exited with 0 +++ [pid 5296] <... exit_group resumed>) = ? [pid 5307] <... set_robust_list resumed>) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5307] rt_sigprocmask(SIG_SETMASK, [], [pid 5306] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5305] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] +++ exited with 0 +++ [pid 5297] +++ exited with 0 +++ [pid 5307] memfd_create("syzkaller", 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5307] <... memfd_create resumed>) = 3 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] +++ exited with 0 +++ [pid 5296] +++ exited with 0 +++ [pid 5056] <... restart_syscall resumed>) = 0 [pid 5307] <... mmap resumed>) = 0x7f92368d1000 [pid 5055] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5304] <... mknod resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5304] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] <... futex resumed>) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 3 [pid 5304] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5302] <... futex resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5302] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 65.471072][ T5305] loop4: detected capacity change from 0 to 1024 [pid 5305] <... mount resumed>) = 0 [pid 5304] <... open resumed>) = 4 [pid 5060] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5305] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5305] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5056] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5307] <... write resumed>) = 524288 [pid 5305] ioctl(4, LOOP_CLR_FD [pid 5304] <... futex resumed>) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5304] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] <... futex resumed>) = 0 [pid 5304] sync( [pid 5302] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] <... ioctl resumed>) = 0 [pid 5055] getdents64(3, [pid 5305] close(4 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5305] <... close resumed>) = 0 [pid 5055] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5305] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] <... futex resumed>) = 0 [pid 5303] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = 0 [pid 5303] <... futex resumed>) = 1 [pid 5305] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5303] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] munmap(0x7f92368d1000, 138412032) = 0 [pid 5307] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5307] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5305] <... mknod resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5305] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5303] <... futex resumed>) = 0 [pid 5305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5303] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5060] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5307] close(3 [pid 5305] <... open resumed>) = 4 [pid 5303] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5307] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5305] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... mkdir resumed>) = 0 [pid 5305] <... futex resumed>) = 1 [pid 5303] <... futex resumed>) = 0 [pid 5305] sync( [pid 5303] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5056] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = 0 [pid 5307] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5303] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5055] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] newfstatat(4, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 65.560105][ T5307] loop2: detected capacity change from 0 to 1024 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(4, [pid 5055] <... openat resumed>) = 4 [pid 5302] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4 [pid 5307] <... mount resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5307] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5304] <... sync resumed>) = 0 [pid 5056] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5307] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5307] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5305] <... sync resumed>) = 0 [pid 5304] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5307] <... chdir resumed>) = 0 [pid 5305] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5304] <... futex resumed>) = 0 [pid 5302] exit_group(0 [pid 5056] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5305] <... futex resumed>) = 1 [pid 5304] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5305] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] <... futex resumed>) = 0 [pid 5060] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(4 [pid 5303] exit_group(0 [pid 5302] <... exit_group resumed>) = ? [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5056] unlink("./19/binderfs" [pid 5307] ioctl(4, LOOP_CLR_FD [pid 5303] <... exit_group resumed>) = ? [pid 5060] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... unlink resumed>) = 0 [pid 5055] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5307] <... ioctl resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5307] close(4 [pid 5060] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5307] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5307] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5307] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5305] <... futex resumed>) = ? [pid 5304] <... futex resumed>) = ? [pid 5060] <... openat resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5307] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5306] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] +++ exited with 0 +++ [pid 5303] +++ exited with 0 +++ [pid 5060] newfstatat(4, "", [pid 5055] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5306] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5307] <... mknod resumed>) = 0 [pid 5306] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5304] +++ exited with 0 +++ [pid 5302] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5056] <... close resumed>) = 0 [pid 5055] unlink("./19/binderfs" [pid 5307] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] rmdir("./19" [pid 5055] <... unlink resumed>) = 0 [pid 5307] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5306] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./20", 0777 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5059] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] close(3 [pid 5306] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5060] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] newfstatat(3, "", [pid 5055] rmdir("./19" [pid 5307] <... open resumed>) = 4 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... rmdir resumed>) = 0 [pid 5060] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(3, [pid 5058] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./20", 0777 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... openat resumed>) = 3 [pid 5055] <... mkdir resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5059] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5307] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5307] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5060] unlink("./19/binderfs" [pid 5058] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... openat resumed>) = 3 [pid 5307] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... unlink resumed>) = 0 [pid 5306] <... futex resumed>) = 0 [pid 5306] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(3, [pid 5307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5307] sync( [pid 5060] close(3 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] <... close resumed>) = 0 [pid 5055] close(3 [pid 5060] rmdir("./19" [pid 5055] <... close resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] newfstatat(3, "", [pid 5056] close(3 [pid 5060] mkdir("./20", 0777) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5308 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5060] close(3) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5308 attached [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] getdents64(3, [pid 5059] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5310 attached [pid 5308] set_robust_list(0x555555d616a0, 24 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5309 attached [pid 5310] set_robust_list(0x555555d616a0, 24 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5059] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5310 [pid 5310] <... set_robust_list resumed>) = 0 [pid 5309] set_robust_list(0x555555d616a0, 24 [pid 5308] chdir("./20" [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5309 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5310] chdir("./20" [pid 5309] <... set_robust_list resumed>) = 0 [pid 5308] <... chdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5310] <... chdir resumed>) = 0 [pid 5309] chdir("./20" [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... openat resumed>) = 4 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] <... chdir resumed>) = 0 [pid 5308] <... prctl resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5310] <... prctl resumed>) = 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5308] setpgid(0, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5310] setpgid(0, 0 [pid 5309] <... prctl resumed>) = 0 [pid 5308] <... setpgid resumed>) = 0 [pid 5059] getdents64(4, [pid 5310] <... setpgid resumed>) = 0 [pid 5309] setpgid(0, 0 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] <... setpgid resumed>) = 0 [pid 5308] <... openat resumed>) = 3 [pid 5059] getdents64(4, [pid 5310] <... openat resumed>) = 3 [pid 5308] write(3, "1000", 4 [pid 5310] write(3, "1000", 4 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... write resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5310] <... write resumed>) = 4 [pid 5309] <... openat resumed>) = 3 [pid 5308] close(3 [pid 5307] <... sync resumed>) = 0 [pid 5059] close(4 [pid 5310] close(3 [pid 5309] write(3, "1000", 4 [pid 5308] <... close resumed>) = 0 [pid 5307] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5310] <... close resumed>) = 0 [pid 5309] <... write resumed>) = 4 [pid 5308] symlink("/dev/binderfs", "./binderfs" [pid 5307] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5059] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5310] symlink("/dev/binderfs", "./binderfs" [pid 5309] close(3 [pid 5308] <... symlink resumed>) = 0 [pid 5307] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] exit_group(0 [pid 5059] <... rmdir resumed>) = 0 [pid 5309] <... close resumed>) = 0 [pid 5308] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... futex resumed>) = ? [pid 5306] <... exit_group resumed>) = ? [pid 5310] <... symlink resumed>) = 0 [pid 5308] <... futex resumed>) = 0 [pid 5308] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5310] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] symlink("/dev/binderfs", "./binderfs" [pid 5308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5307] +++ exited with 0 +++ [pid 5306] +++ exited with 0 +++ [pid 5310] <... futex resumed>) = 0 [pid 5309] <... symlink resumed>) = 0 [pid 5308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] unlink("./19/binderfs" [pid 5057] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... unlink resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5310] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5308] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5308] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5308] <... mprotect resumed>) = 0 [pid 5310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5309] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5310] <... mmap resumed>) = 0x7f923ecd1000 [pid 5309] <... futex resumed>) = 0 [pid 5308] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5309] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(3, "", ./strace-static-x86_64: Process 5311 attached [pid 5310] <... mprotect resumed>) = 0 [pid 5309] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5058] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5311] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5310] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5308] <... clone3 resumed> => {parent_tid=[5311]}, 88) = 5311 [pid 5059] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] getdents64(3, [pid 5311] <... rseq resumed>) = 0 [pid 5310] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5309] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5308] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] rmdir("./19" [pid 5058] newfstatat(4, "", [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5311] set_robust_list(0x7f923ecf19a0, 24 [pid 5310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5311] <... set_robust_list resumed>) = 0 [pid 5309] <... mmap resumed>) = 0x7f923ecd1000 [pid 5308] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] mkdir("./20", 0777./strace-static-x86_64: Process 5312 attached [pid 5311] rt_sigprocmask(SIG_SETMASK, [], [pid 5310] <... clone3 resumed> => {parent_tid=[5312]}, 88) = 5312 [pid 5309] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5308] <... futex resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] getdents64(4, [pid 5312] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5310] rt_sigprocmask(SIG_SETMASK, [], [pid 5309] <... mprotect resumed>) = 0 [pid 5308] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5312] <... rseq resumed>) = 0 [pid 5311] memfd_create("syzkaller", 0 [pid 5310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5309] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5312] set_robust_list(0x7f923ecf19a0, 24 [pid 5311] <... memfd_create resumed>) = 3 [pid 5310] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] getdents64(4, [pid 5312] <... set_robust_list resumed>) = 0 [pid 5311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5310] <... futex resumed>) = 0 [pid 5309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... openat resumed>) = 3 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5313 attached [pid 5312] rt_sigprocmask(SIG_SETMASK, [], [pid 5311] <... mmap resumed>) = 0x7f92368d1000 [pid 5310] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] close(4 [pid 5313] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5309] <... clone3 resumed> => {parent_tid=[5313]}, 88) = 5313 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5312] memfd_create("syzkaller", 0 [pid 5309] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] close(3 [pid 5313] <... rseq resumed>) = 0 [pid 5312] <... memfd_create resumed>) = 3 [pid 5309] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5313] set_robust_list(0x7f923ecf19a0, 24 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5309] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5314 attached [pid 5312] <... mmap resumed>) = 0x7f92368d1000 [pid 5314] set_robust_list(0x555555d616a0, 24 [pid 5312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5314] <... set_robust_list resumed>) = 0 [pid 5314] chdir("./20" [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5314 [pid 5314] <... chdir resumed>) = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5314] setpgid(0, 0) = 0 [pid 5313] <... set_robust_list resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5314] <... openat resumed>) = 3 [pid 5313] memfd_create("syzkaller", 0 [pid 5311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5313] <... memfd_create resumed>) = 3 [pid 5058] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5311] <... write resumed>) = 524288 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5314] write(3, "1000", 4 [pid 5313] <... mmap resumed>) = 0x7f92368d1000 [pid 5311] munmap(0x7f92368d1000, 138412032 [pid 5058] unlink("./19/binderfs" [pid 5057] openat(AT_FDCWD, "./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5314] <... write resumed>) = 4 [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5311] <... munmap resumed>) = 0 [pid 5058] getdents64(3, [pid 5314] close(3 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(4, "", [pid 5058] close(3 [pid 5314] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5314] symlink("/dev/binderfs", "./binderfs" [pid 5311] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] rmdir("./19" [pid 5314] <... symlink resumed>) = 0 [pid 5057] getdents64(4, [pid 5314] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5311] <... openat resumed>) = 4 [pid 5314] <... futex resumed>) = 0 [pid 5311] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5314] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5312] <... write resumed>) = 524288 [pid 5058] mkdir("./20", 0777 [pid 5057] close(4 [pid 5314] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... close resumed>) = 0 [pid 5314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] rmdir("./19/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5312] munmap(0x7f92368d1000, 138412032 [pid 5057] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] <... mmap resumed>) = 0x7f923ecd1000 [pid 5312] <... munmap resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5314] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5314] <... mprotect resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5314] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5312] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5057] unlink("./19/binderfs" [pid 5314] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5312] <... openat resumed>) = 4 [pid 5057] <... unlink resumed>) = 0 [pid 5314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] getdents64(3, ./strace-static-x86_64: Process 5315 attached [pid 5312] ioctl(4, LOOP_SET_FD, 3 [pid 5311] <... ioctl resumed>) = 0 [pid 5315] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5314] <... clone3 resumed> => {parent_tid=[5315]}, 88) = 5315 [pid 5311] close(3 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5311] <... close resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5311] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5315] <... rseq resumed>) = 0 [pid 5314] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(3 [pid 5314] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5315] set_robust_list(0x7f923ecf19a0, 24 [pid 5314] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5311] <... mkdir resumed>) = 0 [pid 5058] close(3 [pid 5057] rmdir("./19" [pid 5315] <... set_robust_list resumed>) = 0 [pid 5313] <... write resumed>) = 524288 [pid 5311] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... close resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5315] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] mkdir("./20", 0777 [pid 5315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5315] memfd_create("syzkaller", 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5315] <... memfd_create resumed>) = 3 [pid 5313] munmap(0x7f92368d1000, 138412032 [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5316 ./strace-static-x86_64: Process 5316 attached [pid 5315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5313] <... munmap resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5316] set_robust_list(0x555555d616a0, 24 [pid 5313] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5312] <... ioctl resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5316] <... set_robust_list resumed>) = 0 [pid 5315] <... write resumed>) = 524288 [pid 5313] <... openat resumed>) = 4 [pid 5312] close(3 [pid 5311] <... mount resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5316] chdir("./20" [pid 5315] munmap(0x7f92368d1000, 138412032 [pid 5313] ioctl(4, LOOP_SET_FD, 3 [pid 5057] close(3 [pid 5311] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] <... close resumed>) = 0 [ 65.836065][ T5311] loop0: detected capacity change from 0 to 1024 [ 65.849819][ T5312] loop1: detected capacity change from 0 to 1024 [pid 5311] <... openat resumed>) = 3 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5311] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5317 attached ) = 0 [pid 5317] set_robust_list(0x555555d616a0, 24 [pid 5311] ioctl(4, LOOP_CLR_FD [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5317 [pid 5311] <... ioctl resumed>) = 0 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5311] close(4 [pid 5317] chdir("./20" [pid 5311] <... close resumed>) = 0 [pid 5311] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... chdir resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... prctl resumed>) = 0 [pid 5311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5308] <... futex resumed>) = 0 [pid 5317] setpgid(0, 0 [pid 5311] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5308] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5317] <... setpgid resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] <... chdir resumed>) = 0 [pid 5312] <... close resumed>) = 0 [pid 5317] <... openat resumed>) = 3 [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5315] <... munmap resumed>) = 0 [pid 5312] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5311] <... mknod resumed>) = 0 [pid 5316] <... prctl resumed>) = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5316] setpgid(0, 0 [pid 5317] write(3, "1000", 4 [pid 5316] <... setpgid resumed>) = 0 [pid 5315] <... openat resumed>) = 4 [pid 5317] <... write resumed>) = 4 [pid 5315] ioctl(4, LOOP_SET_FD, 3 [pid 5312] <... mkdir resumed>) = 0 [pid 5311] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] close(3 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5311] <... futex resumed>) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5317] <... close resumed>) = 0 [pid 5311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5308] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] symlink("/dev/binderfs", "./binderfs" [pid 5308] <... futex resumed>) = 0 [pid 5317] <... symlink resumed>) = 0 [pid 5308] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5317] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] <... openat resumed>) = 3 [pid 5311] <... open resumed>) = 4 [pid 5317] <... futex resumed>) = 0 [pid 5313] <... ioctl resumed>) = 0 [pid 5317] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5313] close(3 [pid 5317] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5316] write(3, "1000", 4 [pid 5313] <... close resumed>) = 0 [pid 5317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5316] <... write resumed>) = 4 [pid 5313] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5311] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5315] <... ioctl resumed>) = 0 [pid 5312] <... mount resumed>) = 0 [pid 5312] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5311] <... futex resumed>) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5308] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5311] sync( [pid 5316] close(3 [pid 5315] close(3 [pid 5313] <... mkdir resumed>) = 0 [pid 5312] <... openat resumed>) = 3 [pid 5316] <... close resumed>) = 0 [pid 5315] <... close resumed>) = 0 [pid 5313] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5312] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5316] symlink("/dev/binderfs", "./binderfs" [pid 5315] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5312] <... chdir resumed>) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5316] <... symlink resumed>) = 0 [pid 5317] <... mmap resumed>) = 0x7f923ecd1000 [pid 5316] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] <... mkdir resumed>) = 0 [pid 5312] ioctl(4, LOOP_CLR_FD [pid 5316] <... futex resumed>) = 0 [pid 5317] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5316] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5312] <... ioctl resumed>) = 0 [pid 5316] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5312] close(4 [pid 5316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5312] <... close resumed>) = 0 [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5317] <... mprotect resumed>) = 0 [pid 5316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5312] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5312] <... futex resumed>) = 1 [pid 5310] <... futex resumed>) = 0 [pid 5317] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5316] <... mprotect resumed>) = 0 [pid 5313] <... mount resumed>) = 0 [pid 5312] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5310] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5316] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5315] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5313] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5310] <... futex resumed>) = 0 [pid 5317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5316] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5313] <... openat resumed>) = 3 [pid 5312] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5310] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5318 attached [pid 5316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5313] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5319 attached [pid 5318] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5317] <... clone3 resumed> => {parent_tid=[5318]}, 88) = 5318 [pid 5313] <... chdir resumed>) = 0 [pid 5319] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5318] <... rseq resumed>) = 0 [pid 5317] rt_sigprocmask(SIG_SETMASK, [], [pid 5316] <... clone3 resumed> => {parent_tid=[5319]}, 88) = 5319 [pid 5313] ioctl(4, LOOP_CLR_FD [pid 5319] <... rseq resumed>) = 0 [pid 5318] set_robust_list(0x7f923ecf19a0, 24 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5316] rt_sigprocmask(SIG_SETMASK, [], [pid 5313] <... ioctl resumed>) = 0 [pid 5319] set_robust_list(0x7f923ecf19a0, 24 [pid 5318] <... set_robust_list resumed>) = 0 [pid 5317] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5313] close(4 [pid 5319] <... set_robust_list resumed>) = 0 [pid 5318] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] <... futex resumed>) = 0 [pid 5316] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... close resumed>) = 0 [pid 5319] rt_sigprocmask(SIG_SETMASK, [], [pid 5318] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5317] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5316] <... futex resumed>) = 0 [pid 5315] <... mount resumed>) = 0 [pid 5313] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5318] memfd_create("syzkaller", 0 [pid 5316] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5313] <... futex resumed>) = 1 [pid 5312] <... mknod resumed>) = 0 [pid 5309] <... futex resumed>) = 0 [pid 5319] memfd_create("syzkaller", 0 [pid 5318] <... memfd_create resumed>) = 3 [pid 5313] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5312] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... memfd_create resumed>) = 3 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5315] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5312] <... futex resumed>) = 1 [pid 5310] <... futex resumed>) = 0 [pid 5309] <... futex resumed>) = 0 [pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5318] <... mmap resumed>) = 0x7f92368d1000 [pid 5315] <... openat resumed>) = 3 [pid 5313] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5310] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [ 65.886816][ T5313] loop5: detected capacity change from 0 to 1024 [ 65.908886][ T5315] loop4: detected capacity change from 0 to 1024 [pid 5309] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5319] <... mmap resumed>) = 0x7f92368d1000 [pid 5310] <... futex resumed>) = 0 [pid 5315] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5310] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] <... chdir resumed>) = 0 [pid 5315] ioctl(4, LOOP_CLR_FD) = 0 [pid 5315] close(4) = 0 [pid 5311] <... sync resumed>) = 0 [pid 5311] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5313] <... mknod resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5314] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] exit_group(0 [pid 5314] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = ? [pid 5308] <... exit_group resumed>) = ? [pid 5319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5315] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5314] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] <... open resumed>) = 4 [pid 5311] +++ exited with 0 +++ [pid 5308] +++ exited with 0 +++ [pid 5313] <... futex resumed>) = 1 [pid 5312] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5309] <... futex resumed>) = 0 [pid 5313] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5312] <... futex resumed>) = 1 [pid 5310] <... futex resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5309] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... restart_syscall resumed>) = 0 [pid 5312] sync( [pid 5310] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] <... write resumed>) = 524288 [pid 5310] <... futex resumed>) = 0 [pid 5310] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5318] munmap(0x7f92368d1000, 138412032 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5318] <... munmap resumed>) = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] <... write resumed>) = 524288 [pid 5318] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5313] <... open resumed>) = 4 [pid 5318] ioctl(4, LOOP_SET_FD, 3 [pid 5315] <... mknod resumed>) = 0 [pid 5315] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5314] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... futex resumed>) = 0 [pid 5314] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] <... futex resumed>) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] sync( [pid 5309] <... futex resumed>) = 0 [pid 5309] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5318] <... ioctl resumed>) = 0 [pid 5318] close(3 [pid 5319] munmap(0x7f92368d1000, 138412032 [pid 5318] <... close resumed>) = 0 [pid 5315] <... open resumed>) = 4 [pid 5318] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] <... umount2 resumed>) = 0 [ 66.006885][ T5318] loop2: detected capacity change from 0 to 1024 [pid 5055] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] <... munmap resumed>) = 0 [pid 5318] <... mkdir resumed>) = 0 [pid 5315] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5318] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5315] <... futex resumed>) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5313] <... sync resumed>) = 0 [pid 5312] <... sync resumed>) = 0 [pid 5310] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5319] <... openat resumed>) = 4 [pid 5315] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] exit_group(0 [pid 5055] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5319] ioctl(4, LOOP_SET_FD, 3 [pid 5315] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5314] <... futex resumed>) = 0 [pid 5313] <... futex resumed>) = 1 [pid 5312] <... futex resumed>) = ? [pid 5310] <... exit_group resumed>) = ? [pid 5309] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5314] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5312] +++ exited with 0 +++ [pid 5309] exit_group(0 [pid 5313] <... futex resumed>) = ? [pid 5309] <... exit_group resumed>) = ? [pid 5055] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] +++ exited with 0 +++ [pid 5309] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5315] sync( [pid 5310] +++ exited with 0 +++ [pid 5060] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5060] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(4, "", [pid 5060] <... openat resumed>) = 3 [pid 5060] newfstatat(3, "", [pid 5318] <... mount resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5318] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] getdents64(3, [pid 5319] <... ioctl resumed>) = 0 [pid 5319] close(3 [pid 5318] <... openat resumed>) = 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] getdents64(4, [pid 5319] <... close resumed>) = 0 [pid 5319] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5318] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5056] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5319] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", [pid 5055] close(4 [pid 5318] <... chdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5318] ioctl(4, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5318] <... ioctl resumed>) = 0 [pid 5056] getdents64(3, [pid 5055] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5318] close(4 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... rmdir resumed>) = 0 [pid 5318] <... close resumed>) = 0 [pid 5056] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... futex resumed>) = 1 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5318] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5317] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5318] <... futex resumed>) = 0 [pid 5317] <... futex resumed>) = 1 [pid 5055] unlink("./20/binderfs" [pid 5318] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5317] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... unlink resumed>) = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5319] <... mount resumed>) = 0 [pid 5055] close(3 [pid 5319] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... close resumed>) = 0 [pid 5319] <... openat resumed>) = 3 [pid 5318] <... mknod resumed>) = 0 [pid 5314] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = 0 [pid 5318] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] rmdir("./20" [ 66.050612][ T5319] loop3: detected capacity change from 0 to 1024 [pid 5319] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5318] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5319] ioctl(4, LOOP_CLR_FD [pid 5317] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... ioctl resumed>) = 0 [pid 5318] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5317] <... futex resumed>) = 0 [pid 5060] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./21", 0777 [pid 5319] close(4 [pid 5318] <... open resumed>) = 4 [pid 5317] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... mkdir resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] <... close resumed>) = 0 [pid 5315] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5319] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5318] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5056] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5319] <... futex resumed>) = 1 [pid 5318] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5315] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] exit_group(0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 3 [pid 5319] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] <... futex resumed>) = ? [pid 5314] <... exit_group resumed>) = ? [pid 5060] getdents64(4, [pid 5318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5317] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5318] sync( [pid 5317] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5316] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] +++ exited with 0 +++ [pid 5314] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5319] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = 1 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] close(3 [pid 5319] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5316] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] close(4 [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5056] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... close resumed>) = 0 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5060] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... rmdir resumed>) = 0 [pid 5059] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(4, "", ./strace-static-x86_64: Process 5320 attached [pid 5060] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5320] set_robust_list(0x555555d616a0, 24 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5320 [pid 5320] <... set_robust_list resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5059] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5320] chdir("./21" [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] unlink("./20/binderfs" [pid 5056] getdents64(4, [pid 5320] <... chdir resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4 [pid 5320] <... prctl resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5320] setpgid(0, 0 [pid 5060] close(3 [pid 5320] <... setpgid resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] rmdir("./20" [pid 5056] <... rmdir resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5320] <... openat resumed>) = 3 [pid 5320] write(3, "1000", 4) = 4 [pid 5060] mkdir("./21", 0777 [pid 5056] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5320] close(3) = 0 [pid 5319] <... mknod resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5320] symlink("/dev/binderfs", "./binderfs" [pid 5319] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... symlink resumed>) = 0 [pid 5319] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5320] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] <... sync resumed>) = 0 [pid 5316] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5320] <... futex resumed>) = 0 [pid 5319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5318] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5320] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5319] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5318] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5316] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5318] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] exit_group(0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... umount2 resumed>) = 0 [pid 5056] unlink("./20/binderfs" [pid 5320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5318] <... futex resumed>) = ? [pid 5317] <... exit_group resumed>) = ? [pid 5060] close(3 [pid 5320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5319] <... open resumed>) = 4 [pid 5318] +++ exited with 0 +++ [pid 5317] +++ exited with 0 +++ [pid 5320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5319] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5320] <... mmap resumed>) = 0x7f923ecd1000 [pid 5319] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5320] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5319] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5056] getdents64(3, [pid 5316] <... futex resumed>) = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5320] <... mprotect resumed>) = 0 [pid 5316] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5320] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5321 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(3 [pid 5319] sync( [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 ./strace-static-x86_64: Process 5322 attached ./strace-static-x86_64: Process 5321 attached [pid 5320] <... clone3 resumed> => {parent_tid=[5322]}, 88) = 5322 [pid 5059] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... openat resumed>) = 3 [pid 5056] rmdir("./20" [pid 5322] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5321] set_robust_list(0x555555d616a0, 24 [pid 5320] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... openat resumed>) = 4 [pid 5057] newfstatat(3, "", [pid 5322] <... rseq resumed>) = 0 [pid 5320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] newfstatat(4, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5320] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, [pid 5322] set_robust_list(0x7f923ecf19a0, 24 [pid 5321] <... set_robust_list resumed>) = 0 [pid 5320] <... futex resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] mkdir("./21", 0777 [pid 5322] <... set_robust_list resumed>) = 0 [pid 5321] chdir("./21" [pid 5320] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5322] rt_sigprocmask(SIG_SETMASK, [], [pid 5321] <... chdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] <... mkdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] close(4) = 0 [pid 5059] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5059] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5059] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(3 [pid 5059] unlink("./20/binderfs" [pid 5056] <... close resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5323 attached [pid 5059] close(3 [pid 5323] set_robust_list(0x555555d616a0, 24 [pid 5321] <... prctl resumed>) = 0 [pid 5323] <... set_robust_list resumed>) = 0 [pid 5322] memfd_create("syzkaller", 0 [pid 5059] <... close resumed>) = 0 [pid 5323] chdir("./21" [pid 5321] setpgid(0, 0 [pid 5323] <... chdir resumed>) = 0 [pid 5322] <... memfd_create resumed>) = 3 [pid 5321] <... setpgid resumed>) = 0 [pid 5059] rmdir("./20" [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5323 [pid 5323] <... prctl resumed>) = 0 [pid 5322] <... mmap resumed>) = 0x7f92368d1000 [pid 5321] <... openat resumed>) = 3 [pid 5319] <... sync resumed>) = 0 [pid 5323] setpgid(0, 0 [pid 5059] mkdir("./21", 0777 [pid 5323] <... setpgid resumed>) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... mkdir resumed>) = 0 [pid 5057] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5323] <... openat resumed>) = 3 [pid 5322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5321] write(3, "1000", 4 [pid 5319] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5323] write(3, "1000", 4 [pid 5321] <... write resumed>) = 4 [pid 5319] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5323] <... write resumed>) = 4 [pid 5321] close(3 [pid 5319] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] exit_group(0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5323] close(3 [pid 5321] <... close resumed>) = 0 [pid 5319] <... futex resumed>) = ? [pid 5316] <... exit_group resumed>) = ? [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5323] <... close resumed>) = 0 [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 5319] +++ exited with 0 +++ [pid 5059] close(3 [pid 5057] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5323] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5323] <... symlink resumed>) = 0 [pid 5316] +++ exited with 0 +++ [pid 5321] <... symlink resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5321] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] newfstatat(4, "", ./strace-static-x86_64: Process 5324 attached [pid 5323] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... futex resumed>) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5324] set_robust_list(0x555555d616a0, 24 [pid 5323] <... futex resumed>) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] getdents64(4, [pid 5324] <... set_robust_list resumed>) = 0 [pid 5323] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5321] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5324] chdir("./21" [pid 5323] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5324 [pid 5057] getdents64(4, [pid 5324] <... chdir resumed>) = 0 [pid 5323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5321] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] close(4 [pid 5324] <... prctl resumed>) = 0 [pid 5323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... close resumed>) = 0 [pid 5324] setpgid(0, 0 [pid 5323] <... mmap resumed>) = 0x7f923ecd1000 [pid 5321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5324] <... setpgid resumed>) = 0 [pid 5323] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5321] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] <... openat resumed>) = 3 [pid 5057] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5323] <... mprotect resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5324] <... openat resumed>) = 3 [pid 5323] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5324] write(3, "1000", 4 [pid 5058] getdents64(3, [pid 5324] <... write resumed>) = 4 [pid 5323] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] close(3 [pid 5323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5325 attached [pid 5324] <... close resumed>) = 0 [pid 5321] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5325] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5324] symlink("/dev/binderfs", "./binderfs" [pid 5057] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5325] <... rseq resumed>) = 0 [pid 5324] <... symlink resumed>) = 0 [pid 5323] <... clone3 resumed> => {parent_tid=[5325]}, 88) = 5325 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5325] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5324] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] unlink("./20/binderfs" [pid 5325] rt_sigprocmask(SIG_SETMASK, [], [pid 5324] <... futex resumed>) = 0 [pid 5323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5325] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5324] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5323] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] memfd_create("syzkaller", 0 [pid 5324] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5323] <... futex resumed>) = 0 [pid 5325] <... memfd_create resumed>) = 3 [pid 5324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5323] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] getdents64(3, [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5325] <... mmap resumed>) = 0x7f92368d1000 [pid 5324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] close(3 [pid 5324] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] <... close resumed>) = 0 [pid 5321] <... mprotect resumed>) = 0 [pid 5324] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] rmdir("./20") = 0 [pid 5324] <... mprotect resumed>) = 0 [pid 5324] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5322] <... write resumed>) = 524288 [pid 5321] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] mkdir("./21", 0777 [pid 5324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5326 attached [pid 5326] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5326] set_robust_list(0x7f923ecf19a0, 24 [pid 5324] <... clone3 resumed> => {parent_tid=[5326]}, 88) = 5326 [pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5057] <... openat resumed>) = 3 [pid 5326] <... set_robust_list resumed>) = 0 [pid 5324] rt_sigprocmask(SIG_SETMASK, [], [pid 5321] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5326] rt_sigprocmask(SIG_SETMASK, [], [pid 5324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5327 attached [pid 5326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5325] <... write resumed>) = 524288 [pid 5324] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] munmap(0x7f92368d1000, 138412032 [pid 5057] <... ioctl resumed>) = 0 [pid 5327] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5326] memfd_create("syzkaller", 0 [pid 5321] <... clone3 resumed> => {parent_tid=[5327]}, 88) = 5327 [pid 5321] rt_sigprocmask(SIG_SETMASK, [], [pid 5322] <... munmap resumed>) = 0 [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5327] <... rseq resumed>) = 0 [pid 5324] <... futex resumed>) = 0 [pid 5057] close(3 [pid 5327] set_robust_list(0x7f923ecf19a0, 24 [pid 5324] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5326] <... memfd_create resumed>) = 3 [pid 5057] <... close resumed>) = 0 [pid 5327] <... set_robust_list resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5327] rt_sigprocmask(SIG_SETMASK, [], [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5325] munmap(0x7f92368d1000, 138412032 [pid 5322] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5321] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] <... mmap resumed>) = 0x7f92368d1000 [pid 5322] <... openat resumed>) = 4 [pid 5321] <... futex resumed>) = 0 [pid 5326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5325] <... munmap resumed>) = 0 [pid 5325] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5325] ioctl(4, LOOP_SET_FD, 3 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5328 [pid 5327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5322] ioctl(4, LOOP_SET_FD, 3 [pid 5321] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5328 attached [pid 5327] memfd_create("syzkaller", 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] set_robust_list(0x555555d616a0, 24) = 0 [pid 5328] chdir("./21") = 0 [pid 5058] newfstatat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5327] <... memfd_create resumed>) = 3 [pid 5058] umount2("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] <... prctl resumed>) = 0 [pid 5328] setpgid(0, 0) = 0 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5328] write(3, "1000", 4 [pid 5326] <... write resumed>) = 524288 [pid 5328] <... write resumed>) = 4 [pid 5328] close(3) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5328] symlink("/dev/binderfs", "./binderfs" [pid 5326] munmap(0x7f92368d1000, 138412032 [pid 5328] <... symlink resumed>) = 0 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] <... munmap resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5328] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] <... mmap resumed>) = 0x7f92368d1000 [pid 5326] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5325] <... ioctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5328] <... futex resumed>) = 0 [pid 5326] <... openat resumed>) = 4 [pid 5325] close(3 [pid 5328] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5326] ioctl(4, LOOP_SET_FD, 3 [pid 5325] <... close resumed>) = 0 [pid 5328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] getdents64(4, [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5058] getdents64(4, [pid 5328] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5325] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5325] <... mkdir resumed>) = 0 [pid 5322] <... ioctl resumed>) = 0 [pid 5058] close(4 [pid 5322] close(3 [pid 5058] <... close resumed>) = 0 [pid 5322] <... close resumed>) = 0 [pid 5058] rmdir("./20/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5328] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5322] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5328] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5322] <... mkdir resumed>) = 0 [pid 5058] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5329 attached [pid 5328] <... clone3 resumed> => {parent_tid=[5329]}, 88) = 5329 [pid 5325] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5329] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5328] rt_sigprocmask(SIG_SETMASK, [], [pid 5329] <... rseq resumed>) = 0 [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] set_robust_list(0x7f923ecf19a0, 24 [pid 5328] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] <... set_robust_list resumed>) = 0 [pid 5328] <... futex resumed>) = 0 [pid 5329] rt_sigprocmask(SIG_SETMASK, [], [pid 5328] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] memfd_create("syzkaller", 0 [pid 5058] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./20/binderfs" [pid 5329] <... memfd_create resumed>) = 3 [pid 5326] <... ioctl resumed>) = 0 [pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] close(3 [pid 5329] <... mmap resumed>) = 0x7f92368d1000 [pid 5326] <... close resumed>) = 0 [pid 5327] <... write resumed>) = 524288 [pid 5326] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... unlink resumed>) = 0 [pid 5326] <... mkdir resumed>) = 0 [pid 5322] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [ 66.310709][ T5325] loop1: detected capacity change from 0 to 1024 [ 66.318279][ T5322] loop0: detected capacity change from 0 to 1024 [ 66.338952][ T5326] loop4: detected capacity change from 0 to 1024 [pid 5326] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] getdents64(3, [pid 5327] munmap(0x7f92368d1000, 138412032 [pid 5322] <... mount resumed>) = 0 [pid 5329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5327] <... munmap resumed>) = 0 [pid 5325] <... mount resumed>) = 0 [pid 5322] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5322] <... openat resumed>) = 3 [pid 5058] close(3 [pid 5329] <... write resumed>) = 524288 [pid 5327] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5325] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5322] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... close resumed>) = 0 [pid 5327] <... openat resumed>) = 4 [pid 5325] <... openat resumed>) = 3 [pid 5322] <... chdir resumed>) = 0 [pid 5058] rmdir("./20" [pid 5325] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... rmdir resumed>) = 0 [pid 5322] ioctl(4, LOOP_CLR_FD [pid 5058] mkdir("./21", 0777 [pid 5327] ioctl(4, LOOP_SET_FD, 3 [pid 5322] <... ioctl resumed>) = 0 [pid 5325] <... chdir resumed>) = 0 [pid 5325] ioctl(4, LOOP_CLR_FD) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5325] close(4) = 0 [pid 5325] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5325] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] <... futex resumed>) = 0 [pid 5323] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... futex resumed>) = 0 [pid 5323] <... futex resumed>) = 1 [pid 5325] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5323] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] munmap(0x7f92368d1000, 138412032 [pid 5327] <... ioctl resumed>) = 0 [pid 5326] <... mount resumed>) = 0 [pid 5325] <... mknod resumed>) = 0 [pid 5322] close(4 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5329] <... munmap resumed>) = 0 [pid 5327] close(3 [pid 5326] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5325] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... close resumed>) = 0 [pid 5329] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5327] <... close resumed>) = 0 [pid 5326] <... openat resumed>) = 3 [pid 5325] <... futex resumed>) = 1 [pid 5323] <... futex resumed>) = 0 [pid 5322] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [pid 5329] <... openat resumed>) = 4 [pid 5327] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5326] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5325] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5323] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... futex resumed>) = 1 [pid 5320] <... futex resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5326] <... chdir resumed>) = 0 [pid 5322] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5320] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5326] ioctl(4, LOOP_CLR_FD [pid 5323] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 66.421368][ T5327] loop5: detected capacity change from 0 to 1024 [pid 5320] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5329] ioctl(4, LOOP_SET_FD, 3 [pid 5326] <... ioctl resumed>) = 0 [pid 5323] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5320] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5327] <... mkdir resumed>) = 0 [pid 5322] <... mknod resumed>) = 0 [pid 5322] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5322] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5320] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] close(4) = 0 [pid 5322] <... futex resumed>) = 0 [pid 5320] <... futex resumed>) = 1 [pid 5322] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5320] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5330 attached [pid 5327] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5326] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... open resumed>) = 4 [pid 5330] set_robust_list(0x555555d616a0, 24 [pid 5326] <... futex resumed>) = 1 [pid 5325] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... futex resumed>) = 0 [pid 5322] <... open resumed>) = 4 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5326] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5325] <... futex resumed>) = 1 [pid 5324] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5330 [pid 5330] chdir("./21" [pid 5325] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5324] <... futex resumed>) = 0 [pid 5323] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... chdir resumed>) = 0 [pid 5325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5324] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5323] <... futex resumed>) = 0 [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] sync( [pid 5323] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... prctl resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5320] <... futex resumed>) = 0 [pid 5330] setpgid(0, 0 [pid 5329] <... ioctl resumed>) = 0 [pid 5327] <... mount resumed>) = 0 [pid 5326] <... mknod resumed>) = 0 [pid 5320] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... setpgid resumed>) = 0 [pid 5329] close(3 [pid 5327] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5322] sync( [pid 5320] <... futex resumed>) = 0 [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5329] <... close resumed>) = 0 [pid 5327] <... openat resumed>) = 3 [pid 5326] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] <... openat resumed>) = 3 [pid 5329] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5327] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5326] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5324] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5330] write(3, "1000", 4) = 4 [pid 5329] <... mkdir resumed>) = 0 [pid 5326] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5324] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] close(3 [pid 5327] <... chdir resumed>) = 0 [pid 5330] <... close resumed>) = 0 [pid 5327] ioctl(4, LOOP_CLR_FD [pid 5330] symlink("/dev/binderfs", "./binderfs" [pid 5327] <... ioctl resumed>) = 0 [pid 5330] <... symlink resumed>) = 0 [pid 5329] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5327] close(4) = 0 [pid 5330] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... futex resumed>) = 0 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... open resumed>) = 4 [pid 5321] <... futex resumed>) = 0 [pid 5330] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5327] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5321] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5327] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [ 66.461648][ T5329] loop2: detected capacity change from 0 to 1024 [pid 5326] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5326] <... futex resumed>) = 1 [pid 5324] <... futex resumed>) = 0 [pid 5330] <... mmap resumed>) = 0x7f923ecd1000 [pid 5324] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] sync( [pid 5330] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5324] <... futex resumed>) = 0 [pid 5330] <... mprotect resumed>) = 0 [pid 5324] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5329] <... mount resumed>) = 0 [pid 5327] <... mknod resumed>) = 0 [pid 5325] <... sync resumed>) = 0 [pid 5323] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5322] <... sync resumed>) = 0 [pid 5330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5329] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5327] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5331 attached [pid 5327] <... futex resumed>) = 1 [pid 5325] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5320] <... futex resumed>) = 0 [pid 5331] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5330] <... clone3 resumed> => {parent_tid=[5331]}, 88) = 5331 [pid 5329] <... openat resumed>) = 3 [pid 5327] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5326] <... sync resumed>) = 0 [pid 5325] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5322] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] exit_group(0 [pid 5331] <... rseq resumed>) = 0 [pid 5330] rt_sigprocmask(SIG_SETMASK, [], [pid 5329] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5326] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] exit_group(0 [pid 5321] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = ? [pid 5320] <... exit_group resumed>) = ? [pid 5331] set_robust_list(0x7f923ecf19a0, 24 [pid 5329] <... chdir resumed>) = 0 [pid 5326] <... futex resumed>) = 1 [pid 5325] <... futex resumed>) = ? [pid 5324] <... futex resumed>) = 0 [pid 5330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5323] <... exit_group resumed>) = ? [pid 5322] +++ exited with 0 +++ [pid 5321] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] +++ exited with 0 +++ [pid 5331] <... set_robust_list resumed>) = 0 [pid 5330] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] ioctl(4, LOOP_CLR_FD [pid 5327] <... open resumed>) = 4 [pid 5326] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5325] +++ exited with 0 +++ [pid 5324] exit_group(0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5331] rt_sigprocmask(SIG_SETMASK, [], [pid 5330] <... futex resumed>) = 0 [pid 5329] <... ioctl resumed>) = 0 [pid 5327] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] <... futex resumed>) = ? [pid 5324] <... exit_group resumed>) = ? [pid 5323] +++ exited with 0 +++ [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5330] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5327] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5331] memfd_create("syzkaller", 0 [pid 5329] close(4 [pid 5327] sync( [pid 5321] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5331] <... memfd_create resumed>) = 3 [pid 5329] <... close resumed>) = 0 [pid 5326] +++ exited with 0 +++ [pid 5324] +++ exited with 0 +++ [pid 5321] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5329] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5331] <... mmap resumed>) = 0x7f92368d1000 [pid 5329] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5328] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5056] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5328] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] getdents64(3, [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(3, [pid 5331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5329] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5327] <... sync resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] exit_group(0 [pid 5327] <... futex resumed>) = ? [pid 5321] <... exit_group resumed>) = ? [pid 5059] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5329] <... mknod resumed>) = 0 [pid 5327] +++ exited with 0 +++ [pid 5329] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 3 [pid 5328] <... futex resumed>) = 0 [pid 5329] <... futex resumed>) = 1 [pid 5328] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(3, "", [pid 5329] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5328] <... futex resumed>) = 0 [pid 5321] +++ exited with 0 +++ [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5059] getdents64(3, [pid 5328] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5329] <... open resumed>) = 4 [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5329] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] <... write resumed>) = 524288 [pid 5329] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5329] sync( [pid 5328] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5328] <... futex resumed>) = 0 [pid 5060] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5328] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5331] munmap(0x7f92368d1000, 138412032 [pid 5056] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5331] <... munmap resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... openat resumed>) = 4 [pid 5055] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(4, "", [pid 5055] <... openat resumed>) = 4 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] newfstatat(4, "", [pid 5056] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, [pid 5331] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] getdents64(4, [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5331] <... openat resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, [pid 5331] ioctl(4, LOOP_SET_FD, 3 [pid 5056] close(4 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... close resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... rmdir resumed>) = 0 [pid 5055] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5329] <... sync resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... rmdir resumed>) = 0 [pid 5329] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5059] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5329] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5329] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5328] exit_group(0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5329] <... futex resumed>) = ? [pid 5328] <... exit_group resumed>) = ? [pid 5329] +++ exited with 0 +++ [pid 5059] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5328] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5059] newfstatat(4, "", [pid 5056] unlink("./21/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5060] getdents64(4, [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] unlink("./21/binderfs" [pid 5057] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] getdents64(4, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] close(3 [pid 5055] getdents64(3, [pid 5060] close(4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] newfstatat(3, "", [pid 5056] rmdir("./21" [pid 5055] close(3 [pid 5331] <... ioctl resumed>) = 0 [pid 5060] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5331] close(3 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] close(4 [pid 5057] getdents64(3, [pid 5056] mkdir("./22", 0777 [pid 5055] rmdir("./21" [pid 5331] <... close resumed>) = 0 [pid 5060] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5331] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] mkdir("./22", 0777 [pid 5331] <... mkdir resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5059] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... mkdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] unlink("./21/binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... unlink resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./21/binderfs", [ 66.640623][ T5331] loop3: detected capacity change from 0 to 1024 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5331] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... openat resumed>) = 3 [pid 5060] getdents64(3, [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] unlink("./21/binderfs" [pid 5060] close(3) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5055] close(3 [pid 5060] rmdir("./21" [pid 5059] close(3 [pid 5056] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... rmdir resumed>) = 0 [pid 5059] rmdir("./21"./strace-static-x86_64: Process 5333 attached ./strace-static-x86_64: Process 5332 attached [pid 5060] mkdir("./22", 0777 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5333 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5332 [pid 5333] set_robust_list(0x555555d616a0, 24) = 0 [pid 5332] set_robust_list(0x555555d616a0, 24 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] mkdir("./22", 0777 [pid 5333] chdir("./22" [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... mount resumed>) = 0 [pid 5332] chdir("./22" [pid 5059] <... mkdir resumed>) = 0 [pid 5333] <... chdir resumed>) = 0 [pid 5332] <... chdir resumed>) = 0 [pid 5331] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5057] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... openat resumed>) = 3 [pid 5333] <... prctl resumed>) = 0 [pid 5332] <... prctl resumed>) = 0 [pid 5331] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] setpgid(0, 0 [pid 5332] setpgid(0, 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5333] <... setpgid resumed>) = 0 [pid 5332] <... setpgid resumed>) = 0 [pid 5331] <... chdir resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] ioctl(4, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5332] <... openat resumed>) = 3 [pid 5331] <... ioctl resumed>) = 0 [pid 5057] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5332] write(3, "1000", 4 [pid 5331] close(4 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5332] <... write resumed>) = 4 [pid 5331] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5332] close(3 [pid 5331] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... openat resumed>) = 4 [pid 5332] <... close resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5057] newfstatat(4, "", [pid 5333] <... openat resumed>) = 3 [pid 5332] symlink("/dev/binderfs", "./binderfs" [pid 5331] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] close(3 [pid 5333] write(3, "1000", 4 [pid 5332] <... symlink resumed>) = 0 [pid 5330] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5057] getdents64(4, [pid 5333] <... write resumed>) = 4 [pid 5332] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5332] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5330] <... futex resumed>) = 1 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5333] close(3 [pid 5332] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5331] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5330] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] getdents64(4, [pid 5332] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5335 attached ./strace-static-x86_64: Process 5334 attached [pid 5333] <... close resumed>) = 0 [pid 5332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] close(4 [pid 5335] set_robust_list(0x555555d616a0, 24 [pid 5334] set_robust_list(0x555555d616a0, 24 [pid 5333] symlink("/dev/binderfs", "./binderfs" [pid 5332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] <... mknod resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5334 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5335 [pid 5057] <... close resumed>) = 0 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5335] chdir("./22" [pid 5334] chdir("./22" [pid 5333] <... symlink resumed>) = 0 [pid 5332] <... mmap resumed>) = 0x7f923ecd1000 [pid 5331] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rmdir resumed>) = 0 [pid 5335] <... chdir resumed>) = 0 [pid 5334] <... chdir resumed>) = 0 [pid 5333] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] <... futex resumed>) = 0 [pid 5332] <... mprotect resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5057] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] <... prctl resumed>) = 0 [pid 5334] <... prctl resumed>) = 0 [pid 5333] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5332] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5331] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5330] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5335] setpgid(0, 0 [pid 5334] setpgid(0, 0 [pid 5333] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5332] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5330] <... futex resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5335] <... setpgid resumed>) = 0 [pid 5334] <... setpgid resumed>) = 0 [pid 5333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5331] <... open resumed>) = 4 [pid 5330] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5336 attached [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] unlink("./21/binderfs" [pid 5336] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... rseq resumed>) = 0 [pid 5335] <... openat resumed>) = 3 [pid 5334] <... openat resumed>) = 3 [pid 5333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5332] <... clone3 resumed> => {parent_tid=[5336]}, 88) = 5336 [pid 5331] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5336] set_robust_list(0x7f923ecf19a0, 24 [pid 5335] write(3, "1000", 4 [pid 5333] <... mmap resumed>) = 0x7f923ecd1000 [pid 5332] rt_sigprocmask(SIG_SETMASK, [], [pid 5331] sync( [pid 5330] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... write resumed>) = 4 [pid 5334] write(3, "1000", 4 [pid 5333] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5330] <... futex resumed>) = 0 [pid 5057] getdents64(3, [pid 5336] rt_sigprocmask(SIG_SETMASK, [], [pid 5330] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5334] <... write resumed>) = 4 [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] close(3 [pid 5333] <... mprotect resumed>) = 0 [pid 5334] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5336] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] <... close resumed>) = 0 [pid 5334] <... close resumed>) = 0 [pid 5333] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5332] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(3 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] symlink("/dev/binderfs", "./binderfs" [pid 5334] symlink("/dev/binderfs", "./binderfs" [pid 5333] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5332] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5336] memfd_create("syzkaller", 0) = 3 [pid 5335] <... symlink resumed>) = 0 [pid 5334] <... symlink resumed>) = 0 [pid 5332] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] rmdir("./21" [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5335] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... rmdir resumed>) = 0 [pid 5336] <... mmap resumed>) = 0x7f92368d1000 [pid 5335] <... futex resumed>) = 0 [pid 5334] <... futex resumed>) = 0 [pid 5334] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, ./strace-static-x86_64: Process 5337 attached [pid 5335] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5334] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5333] <... clone3 resumed> => {parent_tid=[5337]}, 88) = 5337 [pid 5057] mkdir("./22", 0777 [pid 5337] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5335] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5337] <... rseq resumed>) = 0 [pid 5337] set_robust_list(0x7f923ecf19a0, 24 [pid 5335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5337] <... set_robust_list resumed>) = 0 [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5337] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] <... mmap resumed>) = 0x7f923ecd1000 [pid 5335] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5333] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5335] <... mprotect resumed>) = 0 [pid 5334] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] <... sync resumed>) = 0 [pid 5336] <... write resumed>) = 524288 [pid 5335] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5333] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... openat resumed>) = 3 [pid 5334] <... mmap resumed>) = 0x7f923ecd1000 [pid 5333] <... futex resumed>) = 1 [pid 5334] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5333] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5337] <... futex resumed>) = 0 [pid 5334] <... mprotect resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5330] <... futex resumed>) = 0 [pid 5337] memfd_create("syzkaller", 0 [pid 5334] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5331] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5330] exit_group(0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5334] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5331] <... futex resumed>) = ? [pid 5330] <... exit_group resumed>) = ? [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5337] <... memfd_create resumed>) = 3 [pid 5334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5331] +++ exited with 0 +++ [pid 5330] +++ exited with 0 +++ [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5335] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5057] close(3./strace-static-x86_64: Process 5338 attached [pid 5337] <... mmap resumed>) = 0x7f92368d1000 [pid 5335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5334] <... clone3 resumed> => {parent_tid=[5338]}, 88) = 5338 [pid 5057] <... close resumed>) = 0 [pid 5338] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5334] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5339 attached [pid 5338] <... rseq resumed>) = 0 [pid 5334] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5338] set_robust_list(0x7f923ecf19a0, 24./strace-static-x86_64: Process 5340 attached [pid 5336] munmap(0x7f92368d1000, 138412032 [pid 5335] <... clone3 resumed> => {parent_tid=[5339]}, 88) = 5339 [pid 5058] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5340 [pid 5340] set_robust_list(0x555555d616a0, 24 [pid 5339] <... rseq resumed>) = 0 [pid 5338] <... set_robust_list resumed>) = 0 [pid 5336] <... munmap resumed>) = 0 [pid 5335] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... set_robust_list resumed>) = 0 [pid 5339] set_robust_list(0x7f923ecf19a0, 24 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], [pid 5336] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5334] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5340] chdir("./22" [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] <... openat resumed>) = 4 [pid 5335] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5339] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] newfstatat(3, "", [pid 5338] memfd_create("syzkaller", 0 [pid 5340] <... chdir resumed>) = 0 [pid 5339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5339] memfd_create("syzkaller", 0 [pid 5338] <... memfd_create resumed>) = 3 [pid 5337] <... write resumed>) = 524288 [pid 5336] ioctl(4, LOOP_SET_FD, 3 [pid 5335] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5340] <... prctl resumed>) = 0 [pid 5339] <... memfd_create resumed>) = 3 [pid 5338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5340] setpgid(0, 0) = 0 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5338] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] <... mmap resumed>) = 0x7f92368d1000 [pid 5340] <... openat resumed>) = 3 [pid 5058] <... umount2 resumed>) = 0 [pid 5340] write(3, "1000", 4 [pid 5337] munmap(0x7f92368d1000, 138412032) = 0 [pid 5338] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5337] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5340] <... write resumed>) = 4 [pid 5337] <... openat resumed>) = 4 [pid 5340] close(3 [pid 5337] ioctl(4, LOOP_SET_FD, 3 [pid 5340] <... close resumed>) = 0 [pid 5340] symlink("/dev/binderfs", "./binderfs" [pid 5336] <... ioctl resumed>) = 0 [pid 5336] close(3 [pid 5340] <... symlink resumed>) = 0 [pid 5336] <... close resumed>) = 0 [pid 5058] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5340] <... futex resumed>) = 0 [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5340] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5336] <... mkdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] newfstatat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] openat(AT_FDCWD, "./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5340] <... mmap resumed>) = 0x7f923ecd1000 [pid 5336] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... openat resumed>) = 4 [pid 5340] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] newfstatat(4, "", [pid 5340] <... mprotect resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5340] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5338] <... write resumed>) = 524288 [pid 5058] getdents64(4, [pid 5340] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5339] <... write resumed>) = 524288 [pid 5338] munmap(0x7f92368d1000, 138412032 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5337] <... ioctl resumed>) = 0 [pid 5336] <... mount resumed>) = 0 [pid 5058] getdents64(4, [pid 5337] close(3 [pid 5336] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5340] <... clone3 resumed> => {parent_tid=[5341]}, 88) = 5341 [pid 5338] <... munmap resumed>) = 0 [pid 5337] <... close resumed>) = 0 [pid 5336] <... openat resumed>) = 3 [pid 5058] close(4./strace-static-x86_64: Process 5341 attached [pid 5340] rt_sigprocmask(SIG_SETMASK, [], [pid 5339] munmap(0x7f92368d1000, 138412032 [pid 5338] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5337] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5336] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... close resumed>) = 0 [pid 5341] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... munmap resumed>) = 0 [pid 5338] <... openat resumed>) = 4 [pid 5337] <... mkdir resumed>) = 0 [pid 5336] <... chdir resumed>) = 0 [pid 5058] rmdir("./21/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5341] <... rseq resumed>) = 0 [pid 5340] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5338] ioctl(4, LOOP_SET_FD, 3 [pid 5336] ioctl(4, LOOP_CLR_FD [pid 5058] <... rmdir resumed>) = 0 [pid 5341] set_robust_list(0x7f923ecf19a0, 24 [pid 5340] <... futex resumed>) = 0 [pid 5339] <... openat resumed>) = 4 [pid 5336] <... ioctl resumed>) = 0 [ 66.831009][ T5336] loop0: detected capacity change from 0 to 1024 [ 66.861277][ T5337] loop1: detected capacity change from 0 to 1024 [pid 5058] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5336] close(4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5336] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5336] <... futex resumed>) = 1 [pid 5332] <... futex resumed>) = 0 [pid 5058] unlink("./21/binderfs" [pid 5340] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5341] <... set_robust_list resumed>) = 0 [pid 5339] ioctl(4, LOOP_SET_FD, 3 [pid 5337] <... mount resumed>) = 0 [pid 5336] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5332] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... unlink resumed>) = 0 [pid 5337] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5332] <... futex resumed>) = 0 [pid 5337] <... openat resumed>) = 3 [pid 5336] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5332] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] getdents64(3, [pid 5337] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5337] <... chdir resumed>) = 0 [pid 5337] ioctl(4, LOOP_CLR_FD [pid 5058] close(3 [pid 5337] <... ioctl resumed>) = 0 [pid 5336] <... mknod resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5337] close(4) = 0 [pid 5337] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] rmdir("./21" [pid 5341] rt_sigprocmask(SIG_SETMASK, [], [pid 5337] <... futex resumed>) = 1 [pid 5333] <... futex resumed>) = 0 [pid 5337] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5336] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5333] <... futex resumed>) = 0 [pid 5336] <... futex resumed>) = 1 [pid 5333] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] <... futex resumed>) = 0 [pid 5336] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5332] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] mkdir("./22", 0777 [pid 5341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... ioctl resumed>) = 0 [pid 5338] <... ioctl resumed>) = 0 [pid 5337] <... mknod resumed>) = 0 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5332] <... futex resumed>) = 0 [pid 5341] memfd_create("syzkaller", 0 [pid 5339] close(3 [pid 5338] close(3 [pid 5336] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5332] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... mkdir resumed>) = 0 [pid 5341] <... memfd_create resumed>) = 3 [pid 5339] <... close resumed>) = 0 [pid 5338] <... close resumed>) = 0 [pid 5337] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5339] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5338] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5337] <... futex resumed>) = 1 [pid 5336] <... open resumed>) = 4 [pid 5333] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5341] <... mmap resumed>) = 0x7f92368d1000 [pid 5337] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... mkdir resumed>) = 0 [pid 5337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5333] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5339] <... mkdir resumed>) = 0 [pid 5338] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5337] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5333] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5337] <... open resumed>) = 4 [pid 5336] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5339] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5336] <... futex resumed>) = 1 [pid 5332] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5336] sync( [pid 5332] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... close resumed>) = 0 [pid 5337] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] <... futex resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] <... futex resumed>) = 1 [pid 5333] <... futex resumed>) = 0 [pid 5332] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5342 attached [pid 5338] <... mount resumed>) = 0 [pid 5337] sync( [pid 5333] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] set_robust_list(0x555555d616a0, 24 [pid 5333] <... futex resumed>) = 0 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5333] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5338] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5342] chdir("./22") = 0 [pid 5338] <... openat resumed>) = 3 [ 66.895640][ T5338] loop5: detected capacity change from 0 to 1024 [ 66.908186][ T5339] loop4: detected capacity change from 0 to 1024 [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5338] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5342 [pid 5342] <... prctl resumed>) = 0 [pid 5342] setpgid(0, 0 [pid 5339] <... mount resumed>) = 0 [pid 5342] <... setpgid resumed>) = 0 [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] <... chdir resumed>) = 0 [pid 5338] ioctl(4, LOOP_CLR_FD [pid 5342] <... openat resumed>) = 3 [pid 5338] <... ioctl resumed>) = 0 [pid 5339] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5338] close(4 [pid 5342] write(3, "1000", 4 [pid 5339] <... openat resumed>) = 3 [pid 5338] <... close resumed>) = 0 [pid 5339] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5338] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... chdir resumed>) = 0 [pid 5338] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5342] <... write resumed>) = 4 [pid 5339] ioctl(4, LOOP_CLR_FD [pid 5338] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] close(3 [pid 5339] <... ioctl resumed>) = 0 [pid 5338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5334] <... futex resumed>) = 0 [pid 5342] <... close resumed>) = 0 [pid 5339] close(4 [pid 5338] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5334] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] symlink("/dev/binderfs", "./binderfs" [pid 5339] <... close resumed>) = 0 [pid 5342] <... symlink resumed>) = 0 [pid 5339] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5342] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5342] <... futex resumed>) = 0 [pid 5335] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5339] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5342] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5338] <... mknod resumed>) = 0 [pid 5342] <... mmap resumed>) = 0x7f923ecd1000 [pid 5342] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5341] <... write resumed>) = 524288 [pid 5338] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5339] <... mknod resumed>) = 0 [pid 5338] <... futex resumed>) = 1 [pid 5342] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5339] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] <... futex resumed>) = 0 [pid 5342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5341] munmap(0x7f92368d1000, 138412032 [pid 5339] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... futex resumed>) = 0 [pid 5337] <... sync resumed>) = 0 [pid 5336] <... sync resumed>) = 0 [pid 5335] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5343 attached [pid 5341] <... munmap resumed>) = 0 [pid 5339] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5337] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] <... futex resumed>) = 0 [pid 5334] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5343] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5342] <... clone3 resumed> => {parent_tid=[5343]}, 88) = 5343 [pid 5337] <... futex resumed>) = 1 [pid 5336] <... futex resumed>) = 1 [pid 5335] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5333] <... futex resumed>) = 0 [pid 5332] <... futex resumed>) = 0 [pid 5343] <... rseq resumed>) = 0 [pid 5342] rt_sigprocmask(SIG_SETMASK, [], [pid 5337] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5336] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5333] exit_group(0 [pid 5332] exit_group(0 [pid 5343] set_robust_list(0x7f923ecf19a0, 24 [pid 5341] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5338] <... open resumed>) = 4 [pid 5337] <... futex resumed>) = ? [pid 5333] <... exit_group resumed>) = ? [pid 5332] <... exit_group resumed>) = ? [pid 5343] <... set_robust_list resumed>) = 0 [pid 5342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5341] <... openat resumed>) = 4 [pid 5339] <... open resumed>) = 4 [pid 5338] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] +++ exited with 0 +++ [pid 5336] <... futex resumed>) = ? [pid 5333] +++ exited with 0 +++ [pid 5343] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] ioctl(4, LOOP_SET_FD, 3 [pid 5339] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... futex resumed>) = 1 [pid 5336] +++ exited with 0 +++ [pid 5334] <... futex resumed>) = 0 [pid 5332] +++ exited with 0 +++ [pid 5334] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... futex resumed>) = 1 [pid 5338] sync( [pid 5335] <... futex resumed>) = 0 [pid 5334] <... futex resumed>) = 0 [pid 5339] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5334] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5339] <... futex resumed>) = 0 [pid 5335] <... futex resumed>) = 1 [pid 5343] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5342] <... futex resumed>) = 0 [pid 5339] sync( [pid 5335] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5332, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5343] memfd_create("syzkaller", 0 [pid 5342] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5343] <... memfd_create resumed>) = 3 [pid 5055] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5343] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(3, "", [pid 5056] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(3, "", [pid 5055] getdents64(3, [pid 5343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(3, [pid 5055] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] <... ioctl resumed>) = 0 [pid 5341] close(3) = 0 [pid 5343] <... write resumed>) = 524288 [pid 5056] <... umount2 resumed>) = 0 [pid 5341] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5341] <... mkdir resumed>) = 0 [pid 5338] <... sync resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5341] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5339] <... sync resumed>) = 0 [pid 5338] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5339] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5056] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5339] <... futex resumed>) = 1 [pid 5338] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] <... futex resumed>) = 0 [pid 5334] exit_group(0 [pid 5339] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] <... futex resumed>) = ? [pid 5335] exit_group(0 [pid 5334] <... exit_group resumed>) = ? [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = 0 [pid 5338] +++ exited with 0 +++ [pid 5056] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] newfstatat(4, "", [pid 5334] +++ exited with 0 +++ [pid 5335] <... exit_group resumed>) = ? [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5343] munmap(0x7f92368d1000, 138412032 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] getdents64(4, [pid 5060] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(4, [pid 5343] <... munmap resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5060] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5343] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(4 [pid 5343] <... openat resumed>) = 4 [pid 5060] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5343] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5341] <... mount resumed>) = 0 [pid 5339] <... futex resumed>) = ? [pid 5060] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5055] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [ 67.018815][ T5341] loop2: detected capacity change from 0 to 1024 [pid 5341] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] <... openat resumed>) = 3 [pid 5056] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5055] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5341] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5339] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ [pid 5341] ioctl(4, LOOP_CLR_FD) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] unlink("./22/binderfs" [pid 5341] close(4 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5341] <... close resumed>) = 0 [pid 5059] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5341] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5341] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] <... futex resumed>) = 0 [pid 5055] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5341] <... futex resumed>) = 0 [pid 5340] <... futex resumed>) = 1 [pid 5059] <... openat resumed>) = 3 [pid 5055] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5341] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5340] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] newfstatat(3, "", [pid 5060] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5059] getdents64(3, [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(3, [pid 5055] newfstatat(4, "", [pid 5060] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(4, [pid 5060] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./22" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5060] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5060] newfstatat(4, "", [pid 5056] mkdir("./23", 0777 [pid 5055] <... close resumed>) = 0 [pid 5341] <... mknod resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(4, [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5343] <... ioctl resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] close(3 [pid 5060] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5343] <... close resumed>) = 0 [pid 5341] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5343] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5341] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5343] <... mkdir resumed>) = 0 [pid 5341] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] unlink("./22/binderfs" [pid 5340] <... futex resumed>) = 0 [pid 5060] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5340] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... rmdir resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... unlink resumed>) = 0 [pid 5343] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(3, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3) = 0 [pid 5055] rmdir("./22") = 0 [pid 5060] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5059] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] unlink("./22/binderfs" [pid 5055] mkdir("./23", 0777 [pid 5060] <... unlink resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5344 [pid 5059] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5343] <... mount resumed>) = 0 [pid 5343] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5344 attached [pid 5343] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(3, [pid 5344] set_robust_list(0x555555d616a0, 24 [pid 5343] <... chdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] <... openat resumed>) = 4 [pid 5343] ioctl(4, LOOP_CLR_FD [pid 5060] close(3 [pid 5055] <... openat resumed>) = 3 [pid 5343] <... ioctl resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] close(4 [pid 5060] rmdir("./22" [pid 5344] chdir("./23") = 0 [pid 5343] <... close resumed>) = 0 [pid 5341] <... open resumed>) = 4 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL [ 67.082634][ T5343] loop3: detected capacity change from 0 to 1024 [pid 5343] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] mkdir("./23", 0777 [pid 5055] close(3 [pid 5344] <... prctl resumed>) = 0 [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5341] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5344] setpgid(0, 0 [pid 5343] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5344] <... setpgid resumed>) = 0 [pid 5343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5342] <... futex resumed>) = 0 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5342] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] <... openat resumed>) = 3 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5345 attached [pid 5344] write(3, "1000", 4 [pid 5341] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5344] <... write resumed>) = 4 [pid 5341] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5340] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(4, [pid 5341] sync( [pid 5340] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5340] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5345] set_robust_list(0x555555d616a0, 24 [pid 5344] close(3 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] close(4 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5345 [pid 5345] <... set_robust_list resumed>) = 0 [pid 5344] <... close resumed>) = 0 [pid 5343] <... mknod resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5345] chdir("./23" [pid 5344] symlink("/dev/binderfs", "./binderfs" [pid 5060] close(3 [pid 5059] <... close resumed>) = 0 [pid 5345] <... chdir resumed>) = 0 [pid 5344] <... symlink resumed>) = 0 [pid 5343] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5059] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5344] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... rmdir resumed>) = 0 [pid 5345] <... prctl resumed>) = 0 [pid 5344] <... futex resumed>) = 0 [pid 5342] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5346 attached [pid 5345] setpgid(0, 0 [pid 5344] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5343] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5342] <... futex resumed>) = 0 [pid 5345] <... setpgid resumed>) = 0 [pid 5344] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5342] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5346] set_robust_list(0x555555d616a0, 24 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5344] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5346] <... set_robust_list resumed>) = 0 [pid 5345] <... openat resumed>) = 3 [pid 5344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5346 [pid 5346] chdir("./23" [pid 5344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5343] <... open resumed>) = 4 [pid 5346] <... chdir resumed>) = 0 [pid 5344] <... mmap resumed>) = 0x7f923ecd1000 [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5345] write(3, "1000", 4 [pid 5344] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5346] <... prctl resumed>) = 0 [pid 5345] <... write resumed>) = 4 [pid 5344] <... mprotect resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5346] setpgid(0, 0 [pid 5345] close(3 [pid 5344] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5346] <... setpgid resumed>) = 0 [pid 5345] <... close resumed>) = 0 [pid 5344] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5343] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5345] symlink("/dev/binderfs", "./binderfs" [pid 5344] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5341] <... sync resumed>) = 0 [pid 5059] unlink("./22/binderfs"./strace-static-x86_64: Process 5347 attached [pid 5346] <... openat resumed>) = 3 [pid 5345] <... symlink resumed>) = 0 [pid 5343] sync( [pid 5342] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5342] <... futex resumed>) = 0 [pid 5347] <... rseq resumed>) = 0 [pid 5346] write(3, "1000", 4 [pid 5344] <... clone3 resumed> => {parent_tid=[5347]}, 88) = 5347 [pid 5342] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... unlink resumed>) = 0 [pid 5341] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] set_robust_list(0x7f923ecf19a0, 24 [pid 5346] <... write resumed>) = 4 [pid 5345] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] rt_sigprocmask(SIG_SETMASK, [], [pid 5347] <... set_robust_list resumed>) = 0 [pid 5346] close(3 [pid 5344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5347] rt_sigprocmask(SIG_SETMASK, [], [pid 5346] <... close resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5344] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5346] symlink("/dev/binderfs", "./binderfs" [pid 5345] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5344] <... futex resumed>) = 0 [pid 5347] memfd_create("syzkaller", 0 [pid 5346] <... symlink resumed>) = 0 [pid 5345] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5344] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5341] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5347] <... memfd_create resumed>) = 3 [pid 5346] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5346] <... futex resumed>) = 0 [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5347] <... mmap resumed>) = 0x7f92368d1000 [pid 5345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5341] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] exit_group(0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5346] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5345] <... mmap resumed>) = 0x7f923ecd1000 [pid 5346] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5345] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5345] <... mprotect resumed>) = 0 [pid 5059] close(3 [pid 5340] <... exit_group resumed>) = ? [pid 5341] <... futex resumed>) = ? [pid 5346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5341] +++ exited with 0 +++ [pid 5346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5345] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5343] <... sync resumed>) = 0 [pid 5346] <... mmap resumed>) = 0x7f923ecd1000 [pid 5345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5343] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5348 attached [pid 5347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5346] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5343] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5340] +++ exited with 0 +++ [pid 5059] <... close resumed>) = 0 [pid 5348] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5346] <... mprotect resumed>) = 0 [pid 5343] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] exit_group(0 [pid 5059] rmdir("./22" [pid 5348] <... rseq resumed>) = 0 [pid 5346] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5345] <... clone3 resumed> => {parent_tid=[5348]}, 88) = 5348 [pid 5343] <... futex resumed>) = ? [pid 5342] <... exit_group resumed>) = ? [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5059] <... rmdir resumed>) = 0 [pid 5057] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] mkdir("./23", 0777 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5348] set_robust_list(0x7f923ecf19a0, 24 [pid 5346] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5345] rt_sigprocmask(SIG_SETMASK, [], [pid 5343] +++ exited with 0 +++ [pid 5342] +++ exited with 0 +++ [pid 5059] <... mkdir resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5348] <... set_robust_list resumed>) = 0 [pid 5346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5057] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5349 attached [pid 5348] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] newfstatat(3, "", [pid 5349] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5348] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5346] <... clone3 resumed> => {parent_tid=[5349]}, 88) = 5349 [pid 5345] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... rseq resumed>) = 0 [pid 5348] memfd_create("syzkaller", 0 [pid 5347] <... write resumed>) = 524288 [pid 5346] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] set_robust_list(0x7f923ecf19a0, 24 [pid 5348] <... memfd_create resumed>) = 3 [pid 5057] getdents64(3, [pid 5349] <... set_robust_list resumed>) = 0 [pid 5348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5349] rt_sigprocmask(SIG_SETMASK, [], [pid 5348] <... mmap resumed>) = 0x7f92368d1000 [pid 5346] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5347] munmap(0x7f92368d1000, 138412032 [pid 5346] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] newfstatat(3, "", [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5349] memfd_create("syzkaller", 0 [pid 5347] <... munmap resumed>) = 0 [pid 5346] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5349] <... memfd_create resumed>) = 3 [pid 5347] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5347] <... openat resumed>) = 4 [pid 5349] <... mmap resumed>) = 0x7f92368d1000 [pid 5347] ioctl(4, LOOP_SET_FD, 3 [pid 5059] <... close resumed>) = 0 [pid 5058] getdents64(3, [pid 5348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5348] <... write resumed>) = 524288 [pid 5058] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5350 attached [pid 5350] set_robust_list(0x555555d616a0, 24 [pid 5347] <... ioctl resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5350 [pid 5350] <... set_robust_list resumed>) = 0 [pid 5350] chdir("./23") = 0 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5347] close(3) = 0 [pid 5347] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5350] <... prctl resumed>) = 0 [pid 5349] <... write resumed>) = 524288 [pid 5348] munmap(0x7f92368d1000, 138412032 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5350] setpgid(0, 0 [pid 5349] munmap(0x7f92368d1000, 138412032 [pid 5347] <... mkdir resumed>) = 0 [pid 5348] <... munmap resumed>) = 0 [pid 5350] <... setpgid resumed>) = 0 [pid 5058] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] <... munmap resumed>) = 0 [pid 5348] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5347] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5350] <... openat resumed>) = 3 [pid 5348] <... openat resumed>) = 4 [pid 5058] newfstatat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 67.244386][ T5347] loop1: detected capacity change from 0 to 1024 [pid 5350] write(3, "1000", 4 [pid 5349] ioctl(4, LOOP_SET_FD, 3 [pid 5350] <... write resumed>) = 4 [pid 5058] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5350] close(3) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... openat resumed>) = 4 [pid 5350] symlink("/dev/binderfs", "./binderfs" [pid 5058] newfstatat(4, "", [pid 5057] newfstatat(4, "", [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(4, [pid 5350] <... symlink resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] getdents64(4, [pid 5058] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5350] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(4 [pid 5057] getdents64(4, [pid 5350] <... futex resumed>) = 0 [pid 5350] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] close(4 [pid 5350] <... mmap resumed>) = 0x7f923ecd1000 [pid 5348] <... ioctl resumed>) = 0 [pid 5347] <... mount resumed>) = 0 [pid 5350] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... close resumed>) = 0 [pid 5350] <... mprotect resumed>) = 0 [pid 5348] close(3 [pid 5347] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... rmdir resumed>) = 0 [pid 5057] rmdir("./22/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5350] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5349] <... ioctl resumed>) = 0 [pid 5348] <... close resumed>) = 0 [pid 5347] <... openat resumed>) = 3 [pid 5058] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5349] close(3 [pid 5348] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5347] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] <... chdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5347] ioctl(4, LOOP_CLR_FD [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] <... ioctl resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5347] close(4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5351 attached [pid 5349] <... close resumed>) = 0 [pid 5347] <... close resumed>) = 0 [pid 5058] unlink("./22/binderfs" [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5351] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5350] <... clone3 resumed> => {parent_tid=[5351]}, 88) = 5351 [pid 5349] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5348] <... mkdir resumed>) = 0 [pid 5347] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... rseq resumed>) = 0 [pid 5350] rt_sigprocmask(SIG_SETMASK, [], [pid 5349] <... mkdir resumed>) = 0 [pid 5348] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5347] <... futex resumed>) = 1 [pid 5344] <... futex resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [ 67.302768][ T5348] loop0: detected capacity change from 0 to 1024 [ 67.312062][ T5349] loop5: detected capacity change from 0 to 1024 [pid 5057] unlink("./22/binderfs" [pid 5351] set_robust_list(0x7f923ecf19a0, 24 [pid 5350] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5349] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5347] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5344] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5057] <... unlink resumed>) = 0 [pid 5351] <... set_robust_list resumed>) = 0 [pid 5350] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(3, [pid 5058] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5351] rt_sigprocmask(SIG_SETMASK, [], [pid 5350] <... futex resumed>) = 0 [pid 5344] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5057] close(3 [pid 5351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5350] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] rmdir("./22" [pid 5057] <... close resumed>) = 0 [pid 5351] memfd_create("syzkaller", 0 [pid 5057] rmdir("./22" [pid 5351] <... memfd_create resumed>) = 3 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5349] <... mount resumed>) = 0 [pid 5348] <... mount resumed>) = 0 [pid 5347] <... mknod resumed>) = 0 [pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5349] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5348] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5347] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5058] mkdir("./23", 0777 [pid 5349] <... openat resumed>) = 3 [pid 5349] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5349] ioctl(4, LOOP_CLR_FD) = 0 [pid 5348] <... openat resumed>) = 3 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] mkdir("./23", 0777 [pid 5344] <... futex resumed>) = 0 [pid 5349] close(4 [pid 5348] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5347] <... futex resumed>) = 1 [pid 5349] <... close resumed>) = 0 [pid 5349] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] <... chdir resumed>) = 0 [pid 5347] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5344] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... mkdir resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5348] ioctl(4, LOOP_CLR_FD [pid 5347] <... open resumed>) = 4 [pid 5346] <... futex resumed>) = 0 [pid 5344] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5346] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... openat resumed>) = 3 [pid 5348] <... ioctl resumed>) = 0 [pid 5346] <... futex resumed>) = 0 [pid 5349] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5348] close(4 [pid 5346] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5347] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5349] <... mknod resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5348] <... close resumed>) = 0 [pid 5058] close(3 [pid 5344] <... futex resumed>) = 0 [pid 5347] <... futex resumed>) = 1 [pid 5057] <... openat resumed>) = 3 [pid 5347] sync( [pid 5344] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5348] <... futex resumed>) = 1 [pid 5345] <... futex resumed>) = 0 [pid 5344] <... futex resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5349] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5345] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] close(3 [pid 5351] <... write resumed>) = 524288 [pid 5349] <... futex resumed>) = 1 [pid 5346] <... futex resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5351] munmap(0x7f92368d1000, 138412032 [pid 5349] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] <... munmap resumed>) = 0 [pid 5349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5346] <... futex resumed>) = 0 [pid 5346] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000./strace-static-x86_64: Process 5353 attached [pid 5351] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5349] <... open resumed>) = 4 [pid 5348] <... mknod resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5352 ./strace-static-x86_64: Process 5352 attached [pid 5351] <... openat resumed>) = 4 [pid 5348] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5353 [pid 5353] set_robust_list(0x555555d616a0, 24 [pid 5352] set_robust_list(0x555555d616a0, 24 [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] <... set_robust_list resumed>) = 0 [pid 5348] <... futex resumed>) = 1 [pid 5345] <... futex resumed>) = 0 [pid 5345] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] chdir("./23" [pid 5349] <... futex resumed>) = 1 [pid 5353] <... chdir resumed>) = 0 [pid 5352] chdir("./23" [pid 5351] ioctl(4, LOOP_SET_FD, 3 [pid 5349] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5346] <... futex resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] <... chdir resumed>) = 0 [pid 5351] <... ioctl resumed>) = 0 [pid 5346] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... futex resumed>) = 0 [pid 5346] <... futex resumed>) = 1 [pid 5349] sync( [pid 5353] <... prctl resumed>) = 0 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... sync resumed>) = 0 [pid 5347] <... sync resumed>) = 0 [pid 5346] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5345] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5353] setpgid(0, 0 [pid 5352] <... prctl resumed>) = 0 [pid 5349] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... setpgid resumed>) = 0 [pid 5352] setpgid(0, 0 [pid 5349] <... futex resumed>) = 1 [pid 5347] <... futex resumed>) = 1 [pid 5346] <... futex resumed>) = 0 [pid 5344] <... futex resumed>) = 0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] <... setpgid resumed>) = 0 [pid 5349] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5346] exit_group(0 [pid 5344] exit_group(0 [pid 5353] <... openat resumed>) = 3 [pid 5352] <... openat resumed>) = 3 [pid 5349] <... futex resumed>) = ? [pid 5346] <... exit_group resumed>) = ? [pid 5353] write(3, "1000", 4 [pid 5352] write(3, "1000", 4 [pid 5349] +++ exited with 0 +++ [pid 5347] <... futex resumed>) = ? [pid 5346] +++ exited with 0 +++ [pid 5348] <... open resumed>) = 4 [pid 5344] <... exit_group resumed>) = ? [pid 5352] <... write resumed>) = 4 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5346, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5352] close(3 [pid 5351] close(3 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5352] <... close resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5347] +++ exited with 0 +++ [pid 5060] <... restart_syscall resumed>) = 0 [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5353] <... write resumed>) = 4 [pid 5351] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5353] close(3 [pid 5352] <... symlink resumed>) = 0 [pid 5351] <... mkdir resumed>) = 0 [pid 5348] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] +++ exited with 0 +++ [pid 5353] <... close resumed>) = 0 [pid 5352] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] <... futex resumed>) = 1 [pid 5345] <... futex resumed>) = 0 [pid 5060] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5353] symlink("/dev/binderfs", "./binderfs" [pid 5352] <... futex resumed>) = 0 [pid 5351] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5348] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5345] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... symlink resumed>) = 0 [pid 5352] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5351] <... mount resumed>) = 0 [pid 5348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5345] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5353] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5351] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5348] sync( [pid 5345] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5353] <... futex resumed>) = 0 [pid 5352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5351] <... openat resumed>) = 3 [pid 5060] newfstatat(3, "", [pid 5353] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5353] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5351] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(3, [pid 5353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5352] <... mmap resumed>) = 0x7f923ecd1000 [pid 5351] <... chdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5352] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5351] ioctl(4, LOOP_CLR_FD [pid 5060] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5352] <... mprotect resumed>) = 0 [pid 5351] <... ioctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5352] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5351] close(4 [pid 5056] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5352] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5348] <... sync resumed>) = 0 [ 67.435506][ T5351] loop4: detected capacity change from 0 to 1024 [pid 5352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5348] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", [pid 5348] <... futex resumed>) = 1 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5348] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] getdents64(3, [pid 5345] <... futex resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5345] exit_group(0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5351] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5351] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5350] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] <... mknod resumed>) = 0 ./strace-static-x86_64: Process 5354 attached [pid 5352] <... clone3 resumed> => {parent_tid=[5354]}, 88) = 5354 [pid 5348] <... futex resumed>) = ? [pid 5345] <... exit_group resumed>) = ? [pid 5056] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] +++ exited with 0 +++ [pid 5352] rt_sigprocmask(SIG_SETMASK, [], [pid 5354] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5353] <... mmap resumed>) = 0x7f923ecd1000 [pid 5352] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5354] <... rseq resumed>) = 0 [pid 5353] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5352] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] +++ exited with 0 +++ [pid 5354] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5353] <... mprotect resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5060] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] rt_sigprocmask(SIG_SETMASK, [], [pid 5352] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5354] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5354] memfd_create("syzkaller", 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5354] <... memfd_create resumed>) = 3 [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5353] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5350] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5350] <... futex resumed>) = 0 [pid 5060] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] <... mmap resumed>) = 0x7f92368d1000 [pid 5350] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5055] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5351] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5353] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] getdents64(4, [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5351] <... open resumed>) = 4 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] newfstatat(3, "", [pid 5060] close(4 [pid 5056] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5355 attached [pid 5353] <... clone3 resumed> => {parent_tid=[5355]}, 88) = 5355 [pid 5060] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5355] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5353] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5355] <... rseq resumed>) = 0 [pid 5353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5351] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] set_robust_list(0x7f923ecf19a0, 24 [pid 5354] <... write resumed>) = 524288 [pid 5353] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5060] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5350] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = 0 [pid 5351] sync( [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] unlink("./23/binderfs" [pid 5056] <... openat resumed>) = 4 [pid 5355] <... set_robust_list resumed>) = 0 [pid 5353] <... futex resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5355] rt_sigprocmask(SIG_SETMASK, [], [pid 5353] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5355] memfd_create("syzkaller", 0 [pid 5060] <... unlink resumed>) = 0 [pid 5056] getdents64(4, [pid 5355] <... memfd_create resumed>) = 3 [pid 5060] getdents64(3, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5354] munmap(0x7f92368d1000, 138412032 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5060] close(3 [pid 5056] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5060] rmdir("./23" [pid 5056] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5355] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] unlink("./23/binderfs" [pid 5055] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] <... munmap resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5055] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] mkdir("./24", 0777) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5354] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5351] <... sync resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5354] <... openat resumed>) = 4 [pid 5056] rmdir("./23" [pid 5055] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5354] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... openat resumed>) = 3 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5351] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5351] <... futex resumed>) = 1 [pid 5350] <... futex resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] mkdir("./24", 0777 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5351] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] exit_group(0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... mkdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5351] <... futex resumed>) = ? [pid 5350] <... exit_group resumed>) = ? [pid 5060] close(3 [pid 5351] +++ exited with 0 +++ [pid 5350] +++ exited with 0 +++ [pid 5060] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] getdents64(4, [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5356 attached [pid 5056] <... openat resumed>) = 3 [pid 5055] close(4 [pid 5356] set_robust_list(0x555555d616a0, 24) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5356] chdir("./24" [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5356] <... chdir resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5356 [pid 5059] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5055] <... rmdir resumed>) = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] <... prctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 [pid 5356] setpgid(0, 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5356] <... setpgid resumed>) = 0 [pid 5055] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5357 attached [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] newfstatat(3, "", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5357] set_robust_list(0x555555d616a0, 24 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5357] <... set_robust_list resumed>) = 0 [pid 5356] <... openat resumed>) = 3 [pid 5059] getdents64(3, [pid 5357] chdir("./24" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5357 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5355] <... write resumed>) = 524288 [pid 5356] write(3, "1000", 4 [pid 5355] munmap(0x7f92368d1000, 138412032 [pid 5059] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] unlink("./23/binderfs" [pid 5357] <... chdir resumed>) = 0 [pid 5356] <... write resumed>) = 4 [pid 5355] <... munmap resumed>) = 0 [pid 5354] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] close(3 [pid 5355] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5354] close(3 [pid 5357] <... prctl resumed>) = 0 [pid 5356] <... close resumed>) = 0 [pid 5355] <... openat resumed>) = 4 [pid 5354] <... close resumed>) = 0 [ 67.586110][ T5354] loop3: detected capacity change from 0 to 1024 [pid 5357] setpgid(0, 0 [pid 5356] symlink("/dev/binderfs", "./binderfs" [pid 5355] ioctl(4, LOOP_SET_FD, 3 [pid 5354] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] getdents64(3, [pid 5357] <... setpgid resumed>) = 0 [pid 5356] <... symlink resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5354] <... mkdir resumed>) = 0 [pid 5055] close(3 [pid 5357] <... openat resumed>) = 3 [pid 5356] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5055] rmdir("./23" [pid 5354] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5357] write(3, "1000", 4 [pid 5356] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5055] <... rmdir resumed>) = 0 [pid 5357] <... write resumed>) = 4 [pid 5356] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] mkdir("./24", 0777 [pid 5357] close(3 [pid 5356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5357] <... close resumed>) = 0 [pid 5356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5357] symlink("/dev/binderfs", "./binderfs" [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5357] <... symlink resumed>) = 0 [pid 5356] <... mmap resumed>) = 0x7f923ecd1000 [pid 5356] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5357] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... mprotect resumed>) = 0 [pid 5357] <... futex resumed>) = 0 [pid 5356] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5355] <... ioctl resumed>) = 0 [pid 5354] <... mount resumed>) = 0 [pid 5059] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5357] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5356] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5355] close(3 [pid 5354] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 3 [pid 5357] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5354] <... openat resumed>) = 3 [pid 5059] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5358 attached [pid 5357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5355] <... close resumed>) = 0 [pid 5354] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5358] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5356] <... clone3 resumed> => {parent_tid=[5358]}, 88) = 5358 [pid 5355] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5354] <... chdir resumed>) = 0 [pid 5059] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5358] <... rseq resumed>) = 0 [pid 5357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5356] rt_sigprocmask(SIG_SETMASK, [], [pid 5354] ioctl(4, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5358] set_robust_list(0x7f923ecf19a0, 24 [pid 5357] <... mmap resumed>) = 0x7f923ecd1000 [pid 5356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] <... mkdir resumed>) = 0 [pid 5354] <... ioctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5358] <... set_robust_list resumed>) = 0 [pid 5357] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5356] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5354] close(4 [pid 5059] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5359 attached [pid 5358] rt_sigprocmask(SIG_SETMASK, [], [pid 5357] <... mprotect resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5354] <... close resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5359] set_robust_list(0x555555d616a0, 24 [pid 5356] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5354] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5354] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5359] chdir("./24" [pid 5354] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5352] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5352] <... futex resumed>) = 0 [pid 5358] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] getdents64(4, [pid 5359] <... chdir resumed>) = 0 [pid 5354] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5352] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] memfd_create("syzkaller", 0 [pid 5357] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5359] <... prctl resumed>) = 0 [pid 5358] <... memfd_create resumed>) = 3 [pid 5357] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5354] <... mknod resumed>) = 0 [pid 5059] getdents64(4, [pid 5359] setpgid(0, 0 [pid 5358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5359] <... setpgid resumed>) = 0 [pid 5358] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] close(4 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5354] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5359 [pid 5359] <... openat resumed>) = 3 [pid 5355] <... mount resumed>) = 0 [pid 5354] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5059] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5360 attached [pid 5355] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5352] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] write(3, "1000", 4 [pid 5354] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5352] <... futex resumed>) = 0 [pid 5360] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5359] <... write resumed>) = 4 [pid 5357] <... clone3 resumed> => {parent_tid=[5360]}, 88) = 5360 [pid 5355] <... openat resumed>) = 3 [pid 5352] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... rmdir resumed>) = 0 [pid 5360] <... rseq resumed>) = 0 [pid 5359] close(3 [pid 5357] rt_sigprocmask(SIG_SETMASK, [], [pid 5355] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5354] <... open resumed>) = 4 [pid 5360] set_robust_list(0x7f923ecf19a0, 24 [pid 5359] <... close resumed>) = 0 [pid 5357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] <... set_robust_list resumed>) = 0 [pid 5359] symlink("/dev/binderfs", "./binderfs" [pid 5358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5357] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... chdir resumed>) = 0 [pid 5354] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [ 67.628105][ T5355] loop2: detected capacity change from 0 to 1024 [pid 5059] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] rt_sigprocmask(SIG_SETMASK, [], [pid 5359] <... symlink resumed>) = 0 [pid 5355] ioctl(4, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5357] <... futex resumed>) = 0 [pid 5355] <... ioctl resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5359] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5354] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5352] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] memfd_create("syzkaller", 0 [pid 5359] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5355] close(4 [pid 5354] sync( [pid 5352] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5355] <... close resumed>) = 0 [pid 5352] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] unlink("./23/binderfs" [pid 5360] <... memfd_create resumed>) = 3 [pid 5359] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5355] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5353] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... unlink resumed>) = 0 [pid 5360] <... mmap resumed>) = 0x7f92368d1000 [pid 5358] <... write resumed>) = 524288 [pid 5355] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5353] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5353] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5359] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5359] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] close(3) = 0 [pid 5059] rmdir("./23" [pid 5359] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... rmdir resumed>) = 0 [pid 5359] <... clone3 resumed> => {parent_tid=[5361]}, 88) = 5361 [pid 5359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5359] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5358] munmap(0x7f92368d1000, 138412032./strace-static-x86_64: Process 5361 attached [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5355] <... mknod resumed>) = 0 [pid 5354] <... sync resumed>) = 0 [pid 5059] mkdir("./24", 0777 [pid 5358] <... munmap resumed>) = 0 [pid 5361] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5361] set_robust_list(0x7f923ecf19a0, 24 [pid 5358] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5361] <... set_robust_list resumed>) = 0 [pid 5358] <... openat resumed>) = 4 [pid 5354] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] rt_sigprocmask(SIG_SETMASK, [], [pid 5358] ioctl(4, LOOP_SET_FD, 3 [pid 5354] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5361] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5352] exit_group(0 [pid 5361] memfd_create("syzkaller", 0 [pid 5355] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] <... exit_group resumed>) = ? [pid 5361] <... memfd_create resumed>) = 3 [pid 5355] <... futex resumed>) = 1 [pid 5354] +++ exited with 0 +++ [pid 5353] <... futex resumed>) = 0 [pid 5352] +++ exited with 0 +++ [pid 5355] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5353] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... restart_syscall resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5361] <... mmap resumed>) = 0x7f92368d1000 [pid 5360] <... write resumed>) = 524288 [pid 5358] <... ioctl resumed>) = 0 [pid 5355] <... open resumed>) = 4 [pid 5059] close(3 [pid 5058] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5360] munmap(0x7f92368d1000, 138412032 [pid 5355] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5355] <... futex resumed>) = 1 [pid 5355] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] <... munmap resumed>) = 0 [pid 5353] <... futex resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5353] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5353] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5355] <... futex resumed>) = 0 [pid 5360] ioctl(4, LOOP_SET_FD, 3 [pid 5355] sync( [pid 5358] close(3) = 0 ./strace-static-x86_64: Process 5362 attached [pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5360] <... ioctl resumed>) = 0 [pid 5358] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... openat resumed>) = 3 [pid 5362] set_robust_list(0x555555d616a0, 24 [pid 5360] close(3 [pid 5358] <... mkdir resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5362 [pid 5058] newfstatat(3, "", [pid 5362] <... set_robust_list resumed>) = 0 [pid 5361] <... write resumed>) = 524288 [pid 5360] <... close resumed>) = 0 [pid 5358] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5355] <... sync resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5362] chdir("./24" [pid 5361] munmap(0x7f92368d1000, 138412032 [pid 5360] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5355] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5362] <... chdir resumed>) = 0 [pid 5361] <... munmap resumed>) = 0 [pid 5360] <... mkdir resumed>) = 0 [pid 5358] <... mount resumed>) = 0 [pid 5355] <... futex resumed>) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5360] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5358] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5355] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] exit_group(0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5362] <... prctl resumed>) = 0 [pid 5361] <... openat resumed>) = 4 [pid 5358] <... openat resumed>) = 3 [pid 5355] <... futex resumed>) = ? [pid 5353] <... exit_group resumed>) = ? [ 67.736905][ T5358] loop5: detected capacity change from 0 to 1024 [ 67.760965][ T5360] loop1: detected capacity change from 0 to 1024 [pid 5362] setpgid(0, 0 [pid 5361] ioctl(4, LOOP_SET_FD, 3 [pid 5358] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5355] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ [pid 5058] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5362] <... setpgid resumed>) = 0 [pid 5358] <... chdir resumed>) = 0 [pid 5358] ioctl(4, LOOP_CLR_FD) = 0 [pid 5358] close(4 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] <... close resumed>) = 0 [pid 5358] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5362] <... openat resumed>) = 3 [pid 5358] <... futex resumed>) = 1 [pid 5358] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] <... futex resumed>) = 0 [pid 5356] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = 1 [pid 5358] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5362] write(3, "1000", 4) = 4 [pid 5362] close(3) = 0 [pid 5057] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] symlink("/dev/binderfs", "./binderfs" [pid 5360] <... mount resumed>) = 0 [pid 5358] <... mknod resumed>) = 0 [pid 5356] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5358] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... openat resumed>) = 3 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5362] <... symlink resumed>) = 0 [pid 5360] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5356] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... chdir resumed>) = 0 [pid 5358] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5356] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5362] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... ioctl resumed>) = 0 [pid 5360] ioctl(4, LOOP_CLR_FD [pid 5358] <... open resumed>) = 4 [pid 5356] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] newfstatat(3, "", [pid 5362] <... futex resumed>) = 0 [pid 5361] close(3 [pid 5360] <... ioctl resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5362] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5361] <... close resumed>) = 0 [pid 5360] close(4 [pid 5057] getdents64(3, [pid 5362] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5361] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5360] <... close resumed>) = 0 [pid 5358] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5361] <... mkdir resumed>) = 0 [pid 5360] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5057] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = 0 [pid 5356] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5360] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5362] <... mmap resumed>) = 0x7f923ecd1000 [pid 5361] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5358] sync( [pid 5357] <... futex resumed>) = 0 [pid 5356] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5362] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5360] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5357] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5362] <... mprotect resumed>) = 0 [pid 5360] <... mknod resumed>) = 0 [pid 5058] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5362] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5360] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5362] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5357] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5357] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5363 attached [pid 5357] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5362] <... clone3 resumed> => {parent_tid=[5363]}, 88) = 5363 [pid 5363] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5363] <... rseq resumed>) = 0 [pid 5361] <... mount resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5363] set_robust_list(0x7f923ecf19a0, 24 [pid 5362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5361] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5360] <... open resumed>) = 4 [pid 5363] <... set_robust_list resumed>) = 0 [pid 5362] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... openat resumed>) = 3 [pid 5360] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 4 [pid 5363] rt_sigprocmask(SIG_SETMASK, [], [pid 5362] <... futex resumed>) = 0 [pid 5361] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5360] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5363] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5362] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5361] <... chdir resumed>) = 0 [pid 5360] sync( [pid 5357] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [ 67.794315][ T5361] loop0: detected capacity change from 0 to 1024 [pid 5058] newfstatat(4, "", [pid 5363] memfd_create("syzkaller", 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(4, [pid 5357] <... futex resumed>) = 0 [pid 5357] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5363] <... memfd_create resumed>) = 3 [pid 5361] ioctl(4, LOOP_CLR_FD [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5361] <... ioctl resumed>) = 0 [pid 5361] close(4 [pid 5057] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5361] <... close resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5363] <... mmap resumed>) = 0x7f92368d1000 [pid 5361] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... sync resumed>) = 0 [pid 5058] close(4 [pid 5057] newfstatat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5361] <... futex resumed>) = 1 [pid 5058] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5361] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] <... futex resumed>) = 0 [pid 5358] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5359] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5358] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] exit_group(0 [pid 5057] newfstatat(4, "", [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5359] <... futex resumed>) = 0 [pid 5358] <... futex resumed>) = ? [pid 5356] <... exit_group resumed>) = ? [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5361] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5359] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] +++ exited with 0 +++ [pid 5057] getdents64(4, [pid 5356] +++ exited with 0 +++ [pid 5058] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5361] <... mknod resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5361] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(4 [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5361] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] unlink("./23/binderfs" [pid 5057] <... close resumed>) = 0 [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5359] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] rmdir("./23/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5361] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5359] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... openat resumed>) = 3 [pid 5057] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] newfstatat(3, "", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5060] getdents64(3, [pid 5058] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] unlink("./23/binderfs" [pid 5363] <... write resumed>) = 524288 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5361] <... open resumed>) = 4 [pid 5360] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5058] close(3 [pid 5057] getdents64(3, [pid 5058] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5360] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5058] rmdir("./23" [pid 5057] close(3 [pid 5363] munmap(0x7f92368d1000, 138412032 [pid 5360] <... futex resumed>) = 0 [pid 5357] exit_group(0) = ? [pid 5060] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5363] <... munmap resumed>) = 0 [pid 5361] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5363] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... rmdir resumed>) = 0 [pid 5057] rmdir("./23" [pid 5361] sync( [pid 5359] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... rmdir resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5363] <... openat resumed>) = 4 [pid 5359] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] mkdir("./24", 0777 [pid 5057] mkdir("./24", 0777 [pid 5363] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... mkdir resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4) = 0 [pid 5060] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... openat resumed>) = 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5060] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... mkdir resumed>) = 0 [pid 5057] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5360] +++ exited with 0 +++ [pid 5357] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5363] <... ioctl resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5364 attached [pid 5363] close(3 [pid 5060] unlink("./24/binderfs" [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5364 [pid 5364] set_robust_list(0x555555d616a0, 24 [pid 5363] <... close resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5058] close(3 [pid 5056] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5363] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5364] <... set_robust_list resumed>) = 0 [pid 5363] <... mkdir resumed>) = 0 [pid 5361] <... sync resumed>) = 0 [pid 5060] getdents64(3, [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5363] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5361] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5361] <... futex resumed>) = 1 [pid 5361] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] <... futex resumed>) = 0 [pid 5359] exit_group(0 [pid 5361] <... futex resumed>) = ? [pid 5359] <... exit_group resumed>) = ? [pid 5361] +++ exited with 0 +++ [pid 5056] newfstatat(3, "", [pid 5359] +++ exited with 0 +++ [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5365 attached [pid 5365] set_robust_list(0x555555d616a0, 24 [pid 5056] getdents64(3, [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5365] <... set_robust_list resumed>) = 0 [pid 5055] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] chdir("./24" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5365] <... chdir resumed>) = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] chdir("./24" [pid 5060] close(3 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5365 [pid 5056] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5365] <... prctl resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5365] setpgid(0, 0 [pid 5364] <... chdir resumed>) = 0 [pid 5363] <... mount resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] rmdir("./24" [pid 5364] <... prctl resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5364] setpgid(0, 0 [pid 5060] mkdir("./25", 0777 [pid 5055] getdents64(3, [pid 5364] <... setpgid resumed>) = 0 [ 67.919232][ T5363] loop4: detected capacity change from 0 to 1024 [pid 5363] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... mkdir resumed>) = 0 [pid 5365] <... setpgid resumed>) = 0 [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5363] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5364] <... openat resumed>) = 3 [pid 5363] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] <... openat resumed>) = 3 [pid 5364] write(3, "1000", 4 [pid 5363] <... chdir resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = 0 [pid 5364] <... write resumed>) = 4 [pid 5363] ioctl(4, LOOP_CLR_FD [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5365] write(3, "1000", 4 [pid 5364] close(3 [pid 5363] <... ioctl resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] <... write resumed>) = 4 [pid 5364] <... close resumed>) = 0 [pid 5363] close(4 [pid 5060] close(3 [pid 5365] close(3 [pid 5364] symlink("/dev/binderfs", "./binderfs" [pid 5363] <... close resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] <... close resumed>) = 0 [pid 5364] <... symlink resumed>) = 0 [pid 5363] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5365] symlink("/dev/binderfs", "./binderfs" [pid 5364] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5366 attached [pid 5365] <... symlink resumed>) = 0 [pid 5364] <... futex resumed>) = 0 [pid 5363] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5362] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5365] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5364] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5362] <... futex resumed>) = 0 [pid 5056] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5366] set_robust_list(0x555555d616a0, 24 [pid 5365] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5362] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5366] <... set_robust_list resumed>) = 0 [pid 5365] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5364] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5363] <... mknod resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5366] chdir("./25" [pid 5365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5363] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5366 [pid 5056] <... openat resumed>) = 4 [pid 5366] <... chdir resumed>) = 0 [pid 5365] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5363] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5366] <... prctl resumed>) = 0 [pid 5365] <... mmap resumed>) = 0x7f923ecd1000 [pid 5364] <... mmap resumed>) = 0x7f923ecd1000 [pid 5363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5362] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5366] setpgid(0, 0 [pid 5365] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5364] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5363] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5362] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5366] <... setpgid resumed>) = 0 [pid 5365] <... mprotect resumed>) = 0 [pid 5364] <... mprotect resumed>) = 0 [pid 5056] getdents64(4, [pid 5366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5365] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5364] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5366] <... openat resumed>) = 3 [pid 5365] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5364] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5366] write(3, "1000", 4 [pid 5364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] getdents64(4, ./strace-static-x86_64: Process 5368 attached [pid 5366] <... write resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5367 attached [pid 5368] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5366] close(3 [pid 5364] <... clone3 resumed> => {parent_tid=[5368]}, 88) = 5368 [pid 5363] <... open resumed>) = 4 [pid 5055] <... umount2 resumed>) = 0 [pid 5368] <... rseq resumed>) = 0 [pid 5367] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5365] <... clone3 resumed> => {parent_tid=[5367]}, 88) = 5367 [pid 5056] close(4 [pid 5368] set_robust_list(0x7f923ecf19a0, 24 [pid 5367] <... rseq resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5365] rt_sigprocmask(SIG_SETMASK, [], [pid 5364] rt_sigprocmask(SIG_SETMASK, [], [pid 5368] <... set_robust_list resumed>) = 0 [pid 5367] set_robust_list(0x7f923ecf19a0, 24 [pid 5366] symlink("/dev/binderfs", "./binderfs" [pid 5365] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5363] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5368] rt_sigprocmask(SIG_SETMASK, [], [pid 5367] <... set_robust_list resumed>) = 0 [pid 5366] <... symlink resumed>) = 0 [pid 5365] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5056] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5368] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] rt_sigprocmask(SIG_SETMASK, [], [pid 5366] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = 0 [pid 5363] sync( [pid 5362] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5368] memfd_create("syzkaller", 0 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5366] <... futex resumed>) = 0 [pid 5365] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5364] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5362] <... futex resumed>) = 0 [pid 5368] <... memfd_create resumed>) = 3 [pid 5367] memfd_create("syzkaller", 0 [pid 5366] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5362] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5367] <... memfd_create resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5366] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5366] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] unlink("./24/binderfs" [pid 5366] <... mmap resumed>) = 0x7f923ecd1000 [pid 5366] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5056] <... unlink resumed>) = 0 [pid 5055] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5366] <... mprotect resumed>) = 0 [pid 5363] <... sync resumed>) = 0 [pid 5368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5367] <... mmap resumed>) = 0x7f92368d1000 [pid 5366] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5363] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5363] <... futex resumed>) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5363] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] exit_group(0 [pid 5366] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5363] <... futex resumed>) = ? [pid 5362] <... exit_group resumed>) = ? [pid 5367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] close(3 [pid 5055] <... openat resumed>) = 4 [pid 5366] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5363] +++ exited with 0 +++ [pid 5362] +++ exited with 0 +++ [pid 5055] newfstatat(4, "", ./strace-static-x86_64: Process 5369 attached [pid 5056] <... close resumed>) = 0 [pid 5369] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5056] rmdir("./24" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5369] <... rseq resumed>) = 0 [pid 5366] <... clone3 resumed> => {parent_tid=[5369]}, 88) = 5369 [pid 5056] <... rmdir resumed>) = 0 [pid 5369] set_robust_list(0x7f923ecf19a0, 24 [pid 5366] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] getdents64(4, [pid 5369] <... set_robust_list resumed>) = 0 [pid 5366] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5369] rt_sigprocmask(SIG_SETMASK, [], [pid 5366] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] mkdir("./25", 0777 [pid 5369] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5368] <... write resumed>) = 524288 [pid 5366] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... mkdir resumed>) = 0 [pid 5369] memfd_create("syzkaller", 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5369] <... memfd_create resumed>) = 3 [pid 5055] getdents64(4, [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5366] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5369] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5367] <... write resumed>) = 524288 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5055] close(4 [pid 5368] munmap(0x7f92368d1000, 138412032 [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5368] <... munmap resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... rmdir resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5368] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(3 [pid 5368] <... openat resumed>) = 4 [pid 5059] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5368] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5370 attached [pid 5370] set_robust_list(0x555555d616a0, 24 [pid 5369] <... write resumed>) = 524288 [pid 5367] munmap(0x7f92368d1000, 138412032 [pid 5055] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5370] <... set_robust_list resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5370] chdir("./25" [pid 5055] unlink("./24/binderfs" [pid 5367] <... munmap resumed>) = 0 [pid 5370] <... chdir resumed>) = 0 [pid 5367] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5370 [pid 5055] <... unlink resumed>) = 0 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] <... openat resumed>) = 4 [pid 5055] getdents64(3, [pid 5367] ioctl(4, LOOP_SET_FD, 3 [pid 5370] <... prctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5370] setpgid(0, 0) = 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] close(3 [pid 5368] <... ioctl resumed>) = 0 [pid 5370] write(3, "1000", 4) = 4 [pid 5370] close(3) = 0 [pid 5370] symlink("/dev/binderfs", "./binderfs" [pid 5369] munmap(0x7f92368d1000, 138412032 [pid 5370] <... symlink resumed>) = 0 [pid 5369] <... munmap resumed>) = 0 [pid 5370] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5370] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5368] close(3 [pid 5055] <... close resumed>) = 0 [pid 5368] <... close resumed>) = 0 [pid 5055] rmdir("./24" [pid 5370] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5369] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5368] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5367] <... ioctl resumed>) = 0 [pid 5370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5369] <... openat resumed>) = 4 [pid 5368] <... mkdir resumed>) = 0 [pid 5367] close(3 [pid 5055] <... rmdir resumed>) = 0 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5369] ioctl(4, LOOP_SET_FD, 3 [pid 5368] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5367] <... close resumed>) = 0 [pid 5055] mkdir("./25", 0777 [pid 5370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5369] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5370] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] <... mkdir resumed>) = 0 [pid 5370] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5370] <... mprotect resumed>) = 0 [pid 5367] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5370] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5367] <... mkdir resumed>) = 0 [pid 5059] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5371 attached [pid 5370] <... clone3 resumed> => {parent_tid=[5371]}, 88) = 5371 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5371] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5370] rt_sigprocmask(SIG_SETMASK, [], [pid 5368] <... mount resumed>) = 0 [pid 5367] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] close(3 [pid 5371] <... rseq resumed>) = 0 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5368] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5371] set_robust_list(0x7f923ecf19a0, 24 [pid 5370] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5371] rt_sigprocmask(SIG_SETMASK, [], [pid 5370] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5369] close(3 [pid 5368] <... openat resumed>) = 3 [pid 5371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5369] <... close resumed>) = 0 [pid 5368] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5371] memfd_create("syzkaller", 0 [pid 5369] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5368] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5372 attached [pid 5371] <... memfd_create resumed>) = 3 [pid 5369] <... mkdir resumed>) = 0 [pid 5368] ioctl(4, LOOP_CLR_FD [pid 5059] <... openat resumed>) = 4 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5368] <... ioctl resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5372 [pid 5372] set_robust_list(0x555555d616a0, 24 [pid 5371] <... mmap resumed>) = 0x7f92368d1000 [pid 5368] close(4 [pid 5059] newfstatat(4, "", [pid 5372] <... set_robust_list resumed>) = 0 [pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5369] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5372] chdir("./25" [pid 5368] <... close resumed>) = 0 [pid 5372] <... chdir resumed>) = 0 [pid 5368] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5368] <... futex resumed>) = 1 [pid 5372] <... prctl resumed>) = 0 [pid 5368] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] setpgid(0, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5372] <... setpgid resumed>) = 0 [pid 5364] <... futex resumed>) = 0 [pid 5059] getdents64(4, [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5369] <... mount resumed>) = 0 [pid 5364] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = 1 [pid 5372] <... openat resumed>) = 3 [pid 5368] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5367] <... mount resumed>) = 0 [pid 5364] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5369] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5367] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5372] write(3, "1000", 4 [pid 5369] <... openat resumed>) = 3 [ 68.090327][ T5368] loop2: detected capacity change from 0 to 1024 [ 68.106742][ T5367] loop3: detected capacity change from 0 to 1024 [ 68.126460][ T5369] loop5: detected capacity change from 0 to 1024 [pid 5372] <... write resumed>) = 4 [pid 5369] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5367] <... openat resumed>) = 3 [pid 5372] close(3 [pid 5371] <... write resumed>) = 524288 [pid 5369] <... chdir resumed>) = 0 [pid 5368] <... mknod resumed>) = 0 [pid 5367] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] getdents64(4, [pid 5372] <... close resumed>) = 0 [pid 5372] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5369] ioctl(4, LOOP_CLR_FD) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5369] close(4 [pid 5368] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... chdir resumed>) = 0 [pid 5059] close(4 [pid 5372] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5369] <... close resumed>) = 0 [pid 5368] <... futex resumed>) = 1 [pid 5367] ioctl(4, LOOP_CLR_FD [pid 5364] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5369] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] <... ioctl resumed>) = 0 [pid 5364] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5371] munmap(0x7f92368d1000, 138412032 [pid 5369] <... futex resumed>) = 1 [pid 5368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5367] close(4 [pid 5366] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = 0 [pid 5372] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5371] <... munmap resumed>) = 0 [pid 5369] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5367] <... close resumed>) = 0 [pid 5366] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... rmdir resumed>) = 0 [pid 5372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5371] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5367] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] <... futex resumed>) = 0 [pid 5372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5371] <... openat resumed>) = 4 [pid 5369] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5367] <... futex resumed>) = 1 [pid 5366] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5365] <... futex resumed>) = 0 [pid 5059] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5371] ioctl(4, LOOP_SET_FD, 3 [pid 5369] <... mknod resumed>) = 0 [pid 5368] <... open resumed>) = 4 [pid 5367] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5365] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... mmap resumed>) = 0x7f923ecd1000 [pid 5368] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... futex resumed>) = 0 [pid 5369] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5369] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5366] <... futex resumed>) = 0 [pid 5366] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... futex resumed>) = 0 [pid 5366] <... futex resumed>) = 1 [pid 5365] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5369] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5368] <... futex resumed>) = 1 [pid 5366] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5368] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./24/binderfs" [pid 5372] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5369] <... open resumed>) = 4 [pid 5367] <... mknod resumed>) = 0 [pid 5364] <... futex resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5367] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5372] <... clone3 resumed> => {parent_tid=[5373]}, 88) = 5373 [pid 5367] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5364] <... futex resumed>) = 1 [pid 5368] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5373 attached [pid 5372] rt_sigprocmask(SIG_SETMASK, [], [pid 5368] sync( [pid 5367] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5373] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5369] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... ioctl resumed>) = 0 [pid 5369] <... futex resumed>) = 1 [pid 5366] <... futex resumed>) = 0 [pid 5371] close(3 [pid 5366] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... close resumed>) = 0 [pid 5366] <... futex resumed>) = 0 [pid 5371] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5369] sync( [pid 5366] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5371] <... mkdir resumed>) = 0 [pid 5373] <... rseq resumed>) = 0 [pid 5365] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5373] set_robust_list(0x7f923ecf19a0, 24 [pid 5372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5372] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5365] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5372] <... futex resumed>) = 0 [pid 5367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5373] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] rmdir("./24" [pid 5372] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5373] memfd_create("syzkaller", 0 [pid 5371] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5373] <... memfd_create resumed>) = 3 [pid 5059] <... rmdir resumed>) = 0 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5059] mkdir("./25", 0777 [pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5371] <... mount resumed>) = 0 [pid 5371] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5059] <... mkdir resumed>) = 0 [pid 5371] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5367] <... open resumed>) = 4 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5371] ioctl(4, LOOP_CLR_FD) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5371] close(4) = 0 [pid 5367] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5367] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5371] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5373] <... write resumed>) = 524288 [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5365] <... futex resumed>) = 0 [ 68.196468][ T5371] loop1: detected capacity change from 0 to 1024 [pid 5059] close(3 [pid 5373] munmap(0x7f92368d1000, 138412032 [pid 5371] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5370] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] sync( [pid 5365] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5373] <... munmap resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5370] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5373] <... openat resumed>) = 4 [pid 5371] <... mknod resumed>) = 0 ./strace-static-x86_64: Process 5374 attached [pid 5373] ioctl(4, LOOP_SET_FD, 3 [pid 5368] <... sync resumed>) = 0 [pid 5366] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5364] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5368] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... sync resumed>) = 0 [pid 5364] exit_group(0 [pid 5368] <... futex resumed>) = ? [pid 5364] <... exit_group resumed>) = ? [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5369] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5374 [pid 5370] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... futex resumed>) = 0 [pid 5374] set_robust_list(0x555555d616a0, 24 [pid 5370] <... futex resumed>) = 0 [pid 5369] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5366] exit_group(0 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5371] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5370] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... futex resumed>) = ? [pid 5366] <... exit_group resumed>) = ? [pid 5374] chdir("./25" [pid 5369] +++ exited with 0 +++ [pid 5368] +++ exited with 0 +++ [pid 5366] +++ exited with 0 +++ [pid 5364] +++ exited with 0 +++ [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5374] <... chdir resumed>) = 0 [pid 5373] <... ioctl resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5374] <... prctl resumed>) = 0 [pid 5373] close(3 [pid 5367] <... sync resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5374] setpgid(0, 0 [pid 5373] <... close resumed>) = 0 [pid 5371] <... open resumed>) = 4 [pid 5367] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... setpgid resumed>) = 0 [pid 5373] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5367] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5371] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] exit_group(0 [pid 5060] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] <... openat resumed>) = 3 [pid 5373] <... mkdir resumed>) = 0 [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = ? [pid 5365] <... exit_group resumed>) = ? [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] write(3, "1000", 4 [pid 5371] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] +++ exited with 0 +++ [pid 5060] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5370] <... futex resumed>) = 0 [pid 5365] +++ exited with 0 +++ [pid 5060] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5371] sync( [pid 5370] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(3, "", [pid 5057] <... openat resumed>) = 3 [pid 5374] <... write resumed>) = 4 [pid 5373] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5374] close(3 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5374] <... close resumed>) = 0 [pid 5060] getdents64(3, [pid 5058] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(3, "", [pid 5374] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] <... symlink resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... openat resumed>) = 3 [pid 5057] getdents64(3, [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5374] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 68.276857][ T5373] loop0: detected capacity change from 0 to 1024 [pid 5374] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5373] <... mount resumed>) = 0 [pid 5373] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5373] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5373] ioctl(4, LOOP_CLR_FD) = 0 [pid 5371] <... sync resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5374] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5373] close(4 [pid 5371] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = 0 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5373] <... close resumed>) = 0 [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5060] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = 0 [pid 5370] exit_group(0 [pid 5374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5373] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] <... exit_group resumed>) = ? [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5374] <... mmap resumed>) = 0x7f923ecd1000 [pid 5371] +++ exited with 0 +++ [pid 5060] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5370] +++ exited with 0 +++ [pid 5373] <... futex resumed>) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5374] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5373] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5374] <... mprotect resumed>) = 0 [pid 5372] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5058] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5060] newfstatat(4, "", [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5373] <... futex resumed>) = 0 [pid 5372] <... futex resumed>) = 1 [pid 5374] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5373] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5372] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(4, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] getdents64(4, [pid 5058] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] newfstatat(4, "", [pid 5057] umount2("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] close(4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... close resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] openat(AT_FDCWD, "./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... openat resumed>) = 4 [pid 5056] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... rmdir resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] newfstatat(4, "", [pid 5056] <... openat resumed>) = 3 [pid 5060] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(3, "", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] close(4 [pid 5057] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5374] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5058] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(3, [pid 5374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] getdents64(4, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5375 attached [pid 5373] <... mknod resumed>) = 0 [pid 5060] unlink("./25/binderfs" [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5375] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5374] <... clone3 resumed> => {parent_tid=[5375]}, 88) = 5375 [pid 5373] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] <... rseq resumed>) = 0 [pid 5374] rt_sigprocmask(SIG_SETMASK, [], [pid 5373] <... futex resumed>) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5058] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(4 [pid 5056] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] set_robust_list(0x7f923ecf19a0, 24 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5373] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... close resumed>) = 0 [pid 5375] <... set_robust_list resumed>) = 0 [pid 5374] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5372] <... futex resumed>) = 0 [pid 5375] rt_sigprocmask(SIG_SETMASK, [], [pid 5374] <... futex resumed>) = 0 [pid 5373] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5372] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5374] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5375] memfd_create("syzkaller", 0 [pid 5058] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5057] rmdir("./24/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5375] <... memfd_create resumed>) = 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5060] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5058] unlink("./24/binderfs" [pid 5060] <... close resumed>) = 0 [pid 5057] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... open resumed>) = 4 [pid 5060] rmdir("./25" [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5372] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5372] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5373] <... futex resumed>) = 1 [pid 5058] close(3 [pid 5373] sync( [pid 5058] <... close resumed>) = 0 [pid 5375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] mkdir("./26", 0777 [pid 5058] rmdir("./24" [pid 5057] unlink("./24/binderfs" [pid 5060] <... mkdir resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5375] <... write resumed>) = 524288 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] mkdir("./25", 0777 [pid 5057] getdents64(3, [pid 5060] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5375] munmap(0x7f92368d1000, 138412032 [pid 5373] <... sync resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... mkdir resumed>) = 0 [pid 5057] close(3 [pid 5056] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5373] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] exit_group(0 [pid 5373] <... futex resumed>) = ? [pid 5372] <... exit_group resumed>) = ? [pid 5375] <... munmap resumed>) = 0 [pid 5373] +++ exited with 0 +++ [pid 5372] +++ exited with 0 +++ [pid 5057] <... close resumed>) = 0 [pid 5057] rmdir("./24" [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5372, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5060] close(3 [pid 5056] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... close resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5375] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] mkdir("./25", 0777 [pid 5056] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5376 attached [pid 5375] <... openat resumed>) = 4 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5376] set_robust_list(0x555555d616a0, 24 [pid 5375] ioctl(4, LOOP_SET_FD, 3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5376] <... set_robust_list resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5376] chdir("./26" [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5376] <... chdir resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] close(3 [pid 5376] <... prctl resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5376] setpgid(0, 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] <... setpgid resumed>) = 0 [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5377 [pid 5376] <... openat resumed>) = 3 [pid 5376] write(3, "1000", 4) = 4 [pid 5376] close(3) = 0 [pid 5376] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5376] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5377 attached [pid 5376] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5375] <... ioctl resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5376 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] set_robust_list(0x555555d616a0, 24 [pid 5376] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5377] <... set_robust_list resumed>) = 0 [pid 5376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... openat resumed>) = 3 [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5377] chdir("./25" [pid 5376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] newfstatat(3, "", [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] newfstatat(4, "", [pid 5058] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5377] <... chdir resumed>) = 0 [pid 5376] <... mmap resumed>) = 0x7f923ecd1000 [pid 5375] close(3 [pid 5058] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] <... close resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5377] <... prctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5377] setpgid(0, 0 [pid 5376] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5379 attached ./strace-static-x86_64: Process 5378 attached [pid 5377] <... setpgid resumed>) = 0 [pid 5375] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] getdents64(4, [pid 5055] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5379] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5376] <... clone3 resumed> => {parent_tid=[5379]}, 88) = 5379 [pid 5379] rt_sigprocmask(SIG_SETMASK, [], [pid 5376] rt_sigprocmask(SIG_SETMASK, [], [pid 5375] <... mkdir resumed>) = 0 [pid 5379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5378] set_robust_list(0x555555d616a0, 24 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5378 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5379] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5378] <... set_robust_list resumed>) = 0 [pid 5377] <... openat resumed>) = 3 [pid 5375] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5378] chdir("./25" [pid 5056] close(4 [pid 5379] memfd_create("syzkaller", 0 [pid 5376] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5379] <... memfd_create resumed>) = 3 [pid 5378] <... chdir resumed>) = 0 [pid 5377] write(3, "1000", 4 [pid 5376] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5375] <... mount resumed>) = 0 [pid 5056] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5377] <... write resumed>) = 4 [pid 5375] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5056] <... rmdir resumed>) = 0 [pid 5378] <... prctl resumed>) = 0 [pid 5377] close(3 [pid 5375] <... openat resumed>) = 3 [pid 5056] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = 0 [pid 5378] setpgid(0, 0 [pid 5377] <... close resumed>) = 0 [pid 5375] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5375] <... chdir resumed>) = 0 [pid 5378] <... setpgid resumed>) = 0 [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5375] ioctl(4, LOOP_CLR_FD [pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] <... ioctl resumed>) = 0 [pid 5377] <... symlink resumed>) = 0 [pid 5056] unlink("./25/binderfs" [pid 5375] close(4) = 0 [pid 5375] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... unlink resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5374] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5375] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5374] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5374] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5377] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5377] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5378] <... openat resumed>) = 3 [pid 5375] <... mknod resumed>) = 0 [pid 5056] close(3 [pid 5378] write(3, "1000", 4 [pid 5377] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] <... write resumed>) = 524288 [pid 5378] <... write resumed>) = 4 [pid 5377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5375] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 68.482786][ T5375] loop4: detected capacity change from 0 to 1024 [pid 5379] munmap(0x7f92368d1000, 138412032 [pid 5378] close(3 [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5056] rmdir("./25" [pid 5055] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5374] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5374] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5377] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5378] <... close resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5378] symlink("/dev/binderfs", "./binderfs" [pid 5377] <... mprotect resumed>) = 0 [pid 5378] <... symlink resumed>) = 0 [pid 5377] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5375] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5379] <... munmap resumed>) = 0 [pid 5055] getdents64(4, [pid 5056] mkdir("./26", 0777 [pid 5379] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5378] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5379] <... openat resumed>) = 4 [pid 5377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5378] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5380 attached [pid 5380] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5379] ioctl(4, LOOP_SET_FD, 3 [pid 5378] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5377] <... clone3 resumed> => {parent_tid=[5380]}, 88) = 5380 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5380] set_robust_list(0x7f923ecf19a0, 24 [pid 5378] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5377] rt_sigprocmask(SIG_SETMASK, [], [pid 5375] <... open resumed>) = 4 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5375] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] rt_sigprocmask(SIG_SETMASK, [], [pid 5374] <... futex resumed>) = 0 [pid 5380] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5374] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] sync( [pid 5374] <... futex resumed>) = 0 [pid 5374] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5379] <... ioctl resumed>) = 0 [pid 5378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5377] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... rmdir resumed>) = 0 [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5381 attached [pid 5380] <... futex resumed>) = 0 [pid 5379] close(3 [pid 5378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5377] <... futex resumed>) = 1 [pid 5375] <... sync resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5378] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5381] set_robust_list(0x555555d616a0, 24 [pid 5377] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5381] <... set_robust_list resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5381 [pid 5378] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] unlink("./25/binderfs" [pid 5379] <... close resumed>) = 0 [pid 5380] memfd_create("syzkaller", 0 [pid 5379] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5378] <... mprotect resumed>) = 0 [pid 5375] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... unlink resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5374] <... futex resumed>) = 0 [pid 5380] <... memfd_create resumed>) = 3 [pid 5379] <... mkdir resumed>) = 0 [pid 5375] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5374] exit_group(0 [pid 5055] getdents64(3, [pid 5381] chdir("./26" [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5379] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5378] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5375] <... futex resumed>) = ? [pid 5374] <... exit_group resumed>) = ? [pid 5381] <... chdir resumed>) = 0 [pid 5380] <... mmap resumed>) = 0x7f92368d1000 [pid 5378] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5375] +++ exited with 0 +++ [pid 5374] +++ exited with 0 +++ [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5381] <... prctl resumed>) = 0 [pid 5055] close(3 [pid 5381] setpgid(0, 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] <... close resumed>) = 0 ./strace-static-x86_64: Process 5382 attached [pid 5381] <... setpgid resumed>) = 0 [pid 5379] <... mount resumed>) = 0 [pid 5378] <... clone3 resumed> => {parent_tid=[5382]}, 88) = 5382 [pid 5059] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./25" [pid 5382] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5379] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5378] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5382] <... rseq resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5382] set_robust_list(0x7f923ecf19a0, 24 [pid 5381] <... openat resumed>) = 3 [pid 5378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] mkdir("./26", 0777 [pid 5379] <... openat resumed>) = 3 [pid 5382] <... set_robust_list resumed>) = 0 [pid 5379] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5382] rt_sigprocmask(SIG_SETMASK, [], [pid 5379] <... chdir resumed>) = 0 [pid 5382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5379] ioctl(4, LOOP_CLR_FD [pid 5378] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... mkdir resumed>) = 0 [pid 5381] write(3, "1000", 4 [pid 5378] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5382] memfd_create("syzkaller", 0 [pid 5381] <... write resumed>) = 4 [pid 5378] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] newfstatat(3, "", [pid 5379] <... ioctl resumed>) = 0 [pid 5382] <... memfd_create resumed>) = 3 [pid 5381] close(3 [pid 5379] close(4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5381] <... close resumed>) = 0 [pid 5379] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5382] <... mmap resumed>) = 0x7f92368d1000 [pid 5381] symlink("/dev/binderfs", "./binderfs" [pid 5379] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... openat resumed>) = 3 [pid 5381] <... symlink resumed>) = 0 [pid 5381] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5381] <... futex resumed>) = 0 [pid 5381] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5059] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5380] <... write resumed>) = 524288 [pid 5055] close(3 [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 68.555663][ T5379] loop5: detected capacity change from 0 to 1024 [pid 5381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5055] <... close resumed>) = 0 [pid 5381] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5382] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5381] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5379] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5383 attached [pid 5381] <... mprotect resumed>) = 0 [pid 5380] munmap(0x7f92368d1000, 138412032 [pid 5379] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5376] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] set_robust_list(0x555555d616a0, 24 [pid 5382] <... write resumed>) = 524288 [pid 5381] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5376] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5381] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5383] <... set_robust_list resumed>) = 0 [pid 5380] <... munmap resumed>) = 0 [pid 5376] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5381] <... clone3 resumed> => {parent_tid=[5384]}, 88) = 5384 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5383 [pid 5383] chdir("./26" [pid 5381] rt_sigprocmask(SIG_SETMASK, [], [pid 5380] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... openat resumed>) = 4 [pid 5379] <... mknod resumed>) = 0 ./strace-static-x86_64: Process 5384 attached [pid 5383] <... chdir resumed>) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5380] ioctl(4, LOOP_SET_FD, 3 [pid 5384] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5382] munmap(0x7f92368d1000, 138412032 [pid 5379] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... rseq resumed>) = 0 [pid 5381] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5379] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5059] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5379] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... prctl resumed>) = 0 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5376] <... futex resumed>) = 0 [pid 5376] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5384] set_robust_list(0x7f923ecf19a0, 24 [pid 5383] setpgid(0, 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5384] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5384] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5384] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5383] <... setpgid resumed>) = 0 [pid 5380] <... ioctl resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5382] <... munmap resumed>) = 0 [pid 5384] memfd_create("syzkaller", 0 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] close(3 [pid 5059] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5382] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5384] <... memfd_create resumed>) = 3 [pid 5380] <... close resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5382] <... openat resumed>) = 4 [pid 5380] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5380] <... mkdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5384] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5383] <... openat resumed>) = 3 [pid 5382] ioctl(4, LOOP_SET_FD, 3 [pid 5380] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5379] <... open resumed>) = 4 [pid 5059] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] close(4) = 0 [pid 5059] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5059] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./25/binderfs") = 0 [pid 5383] write(3, "1000", 4 [pid 5379] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... write resumed>) = 4 [pid 5379] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5383] close(3 [pid 5382] <... ioctl resumed>) = 0 [pid 5380] <... mount resumed>) = 0 [pid 5379] sync( [pid 5376] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... close resumed>) = 0 [pid 5382] close(3 [pid 5380] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5376] <... futex resumed>) = 0 [pid 5384] <... write resumed>) = 524288 [pid 5383] symlink("/dev/binderfs", "./binderfs" [pid 5382] <... close resumed>) = 0 [pid 5380] <... openat resumed>) = 3 [pid 5376] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] getdents64(3, [pid 5382] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5380] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5383] <... symlink resumed>) = 0 [pid 5380] <... chdir resumed>) = 0 [pid 5059] close(3 [pid 5382] <... mkdir resumed>) = 0 [pid 5380] ioctl(4, LOOP_CLR_FD [pid 5059] <... close resumed>) = 0 [pid 5384] munmap(0x7f92368d1000, 138412032 [pid 5383] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5380] <... ioctl resumed>) = 0 [pid 5059] rmdir("./25" [pid 5383] <... futex resumed>) = 0 [pid 5380] close(4 [pid 5059] <... rmdir resumed>) = 0 [pid 5383] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5380] <... close resumed>) = 0 [pid 5059] mkdir("./26", 0777 [pid 5384] <... munmap resumed>) = 0 [pid 5383] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5380] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... mkdir resumed>) = 0 [pid 5384] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5383] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5380] <... futex resumed>) = 1 [pid 5377] <... futex resumed>) = 0 [ 68.634516][ T5380] loop2: detected capacity change from 0 to 1024 [ 68.656599][ T5382] loop3: detected capacity change from 0 to 1024 [pid 5384] <... openat resumed>) = 4 [pid 5383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5382] <... mount resumed>) = 0 [pid 5380] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5377] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] ioctl(4, LOOP_SET_FD, 3 [pid 5383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5382] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5377] <... futex resumed>) = 0 [pid 5384] <... ioctl resumed>) = 0 [pid 5379] <... sync resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5384] close(3 [pid 5383] <... mmap resumed>) = 0x7f923ecd1000 [pid 5382] <... openat resumed>) = 3 [pid 5379] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... openat resumed>) = 3 [pid 5383] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5382] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5379] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5382] <... chdir resumed>) = 0 [pid 5379] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] <... mprotect resumed>) = 0 [pid 5382] ioctl(4, LOOP_CLR_FD [pid 5376] exit_group(0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5382] <... ioctl resumed>) = 0 [pid 5379] <... futex resumed>) = ? [pid 5376] <... exit_group resumed>) = ? [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5384] <... close resumed>) = 0 [pid 5383] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5382] close(4 [pid 5379] +++ exited with 0 +++ [pid 5376] +++ exited with 0 +++ [pid 5059] close(3 [pid 5384] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5383] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5382] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5384] <... mkdir resumed>) = 0 [pid 5383] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5382] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... mknod resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5385 attached [pid 5384] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5382] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5060] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5385] set_robust_list(0x555555d616a0, 24 [pid 5380] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5385 ./strace-static-x86_64: Process 5386 attached [pid 5385] <... set_robust_list resumed>) = 0 [pid 5383] <... clone3 resumed> => {parent_tid=[5386]}, 88) = 5386 [pid 5382] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5380] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5377] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5386] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5385] chdir("./26" [pid 5383] rt_sigprocmask(SIG_SETMASK, [], [pid 5382] <... mknod resumed>) = 0 [pid 5380] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5378] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5386] <... rseq resumed>) = 0 [pid 5383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5382] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5386] set_robust_list(0x7f923ecf19a0, 24 [pid 5383] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] <... futex resumed>) = 0 [pid 5386] <... set_robust_list resumed>) = 0 [pid 5383] <... futex resumed>) = 0 [pid 5382] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5386] rt_sigprocmask(SIG_SETMASK, [], [pid 5383] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] getdents64(3, [pid 5386] memfd_create("syzkaller", 0 [pid 5385] <... chdir resumed>) = 0 [pid 5378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5386] <... memfd_create resumed>) = 3 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5385] <... prctl resumed>) = 0 [pid 5380] <... futex resumed>) = 0 [pid 5378] <... futex resumed>) = 1 [pid 5377] <... futex resumed>) = 1 [pid 5386] <... mmap resumed>) = 0x7f92368d1000 [pid 5385] setpgid(0, 0 [pid 5382] <... futex resumed>) = 0 [pid 5380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5378] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5385] <... setpgid resumed>) = 0 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5385] write(3, "1000", 4) = 4 [pid 5385] close(3 [pid 5382] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5385] <... close resumed>) = 0 [pid 5385] symlink("/dev/binderfs", "./binderfs" [pid 5384] <... mount resumed>) = 0 [pid 5382] <... open resumed>) = 4 [pid 5380] <... open resumed>) = 4 [pid 5385] <... symlink resumed>) = 0 [pid 5385] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5385] <... futex resumed>) = 0 [pid 5384] <... openat resumed>) = 3 [pid 5385] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5382] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5384] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5382] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5384] <... chdir resumed>) = 0 [pid 5380] <... futex resumed>) = 1 [pid 5378] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = 0 [pid 5382] sync( [pid 5386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5384] ioctl(4, LOOP_CLR_FD [pid 5380] sync( [pid 5378] <... futex resumed>) = 0 [ 68.706061][ T5384] loop1: detected capacity change from 0 to 1024 [pid 5377] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5384] <... ioctl resumed>) = 0 [pid 5377] <... futex resumed>) = 0 [pid 5385] <... mmap resumed>) = 0x7f923ecd1000 [pid 5384] close(4 [pid 5378] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5385] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5384] <... close resumed>) = 0 [pid 5385] <... mprotect resumed>) = 0 [pid 5384] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5384] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5384] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5381] <... futex resumed>) = 0 [pid 5385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5384] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5381] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5387 attached [pid 5387] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5387] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5385] <... clone3 resumed> => {parent_tid=[5387]}, 88) = 5387 [pid 5387] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5385] rt_sigprocmask(SIG_SETMASK, [], [pid 5384] <... mknod resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5387] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5386] <... write resumed>) = 524288 [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5384] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5386] munmap(0x7f92368d1000, 138412032 [pid 5385] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5386] <... munmap resumed>) = 0 [pid 5385] <... futex resumed>) = 0 [pid 5384] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5382] <... sync resumed>) = 0 [pid 5381] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... sync resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5387] memfd_create("syzkaller", 0 [pid 5385] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5387] <... memfd_create resumed>) = 3 [pid 5386] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5382] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] <... futex resumed>) = 0 [pid 5380] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5382] <... futex resumed>) = 1 [pid 5386] <... openat resumed>) = 4 [pid 5382] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5386] ioctl(4, LOOP_SET_FD, 3 [pid 5380] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5377] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5378] exit_group(0 [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5384] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5381] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] exit_group(0 [pid 5387] <... mmap resumed>) = 0x7f92368d1000 [pid 5377] <... exit_group resumed>) = ? [pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5386] <... ioctl resumed>) = 0 [pid 5384] <... open resumed>) = 4 [pid 5382] <... futex resumed>) = ? [pid 5378] <... exit_group resumed>) = ? [pid 5060] getdents64(4, [pid 5384] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5384] sync( [pid 5381] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5382] +++ exited with 0 +++ [pid 5381] <... futex resumed>) = 0 [pid 5380] +++ exited with 0 +++ [pid 5377] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5381] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] close(4) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... restart_syscall resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] <... write resumed>) = 524288 [pid 5384] <... sync resumed>) = 0 [pid 5060] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5384] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5384] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 3 [pid 5386] close(3 [pid 5384] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] exit_group(0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] newfstatat(3, "", [pid 5057] newfstatat(3, "", [pid 5386] <... close resumed>) = 0 [pid 5384] <... futex resumed>) = ? [pid 5381] <... exit_group resumed>) = ? [pid 5060] unlink("./26/binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] munmap(0x7f92368d1000, 138412032 [pid 5386] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5384] +++ exited with 0 +++ [pid 5381] +++ exited with 0 +++ [pid 5060] <... unlink resumed>) = 0 [pid 5058] getdents64(3, [pid 5057] getdents64(3, [pid 5060] getdents64(3, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5387] <... munmap resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5060] close(3 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5386] <... mkdir resumed>) = 0 [pid 5387] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] <... close resumed>) = 0 [pid 5387] <... openat resumed>) = 4 [pid 5386] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] rmdir("./26" [ 68.812886][ T5386] loop0: detected capacity change from 0 to 1024 [pid 5056] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] mkdir("./27", 0777 [pid 5056] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5386] <... mount resumed>) = 0 [pid 5386] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... openat resumed>) = 3 [pid 5386] <... openat resumed>) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5386] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5386] <... chdir resumed>) = 0 [pid 5060] close(3) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... umount2 resumed>) = 0 [pid 5387] <... ioctl resumed>) = 0 [pid 5387] close(3 [pid 5386] ioctl(4, LOOP_CLR_FD [pid 5387] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5386] <... ioctl resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5388 ./strace-static-x86_64: Process 5388 attached [pid 5387] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5388] set_robust_list(0x555555d616a0, 24) = 0 [pid 5387] <... mkdir resumed>) = 0 [pid 5058] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] chdir("./27" [pid 5386] close(4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5386] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] <... chdir resumed>) = 0 [pid 5386] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5387] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5386] <... futex resumed>) = 1 [pid 5383] <... futex resumed>) = 0 [pid 5058] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5388] <... prctl resumed>) = 0 [pid 5386] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] setpgid(0, 0 [pid 5386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5383] <... futex resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = 0 [pid 5386] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5057] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] <... setpgid resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] <... openat resumed>) = 4 [pid 5057] newfstatat(4, "", [pid 5388] <... openat resumed>) = 3 [pid 5058] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5388] write(3, "1000", 4 [pid 5058] newfstatat(4, "", [pid 5388] <... write resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5388] close(3 [pid 5058] getdents64(4, [pid 5388] <... close resumed>) = 0 [pid 5057] getdents64(4, [pid 5388] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5388] <... symlink resumed>) = 0 [pid 5383] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [ 68.859287][ T5387] loop4: detected capacity change from 0 to 1024 [pid 5058] getdents64(4, [pid 5386] <... mknod resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(4, [pid 5388] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5387] <... mount resumed>) = 0 [pid 5058] close(4 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] <... futex resumed>) = 0 [pid 5387] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5386] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] <... close resumed>) = 0 [pid 5057] close(4 [pid 5056] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5388] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5387] <... openat resumed>) = 3 [pid 5386] <... futex resumed>) = 0 [pid 5383] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... close resumed>) = 0 [pid 5388] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5387] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5386] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5383] <... futex resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5057] rmdir("./25/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5383] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5387] <... chdir resumed>) = 0 [pid 5058] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] <... mmap resumed>) = 0x7f923ecd1000 [pid 5387] ioctl(4, LOOP_CLR_FD [pid 5058] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5388] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5387] <... ioctl resumed>) = 0 [pid 5057] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 4 [pid 5388] <... mprotect resumed>) = 0 [pid 5387] close(4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(4, "", [pid 5388] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] unlink("./25/binderfs" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5387] <... close resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5056] getdents64(4, [pid 5388] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5387] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5387] <... futex resumed>) = 1 [pid 5386] <... open resumed>) = 4 [pid 5385] <... futex resumed>) = 0 [pid 5057] unlink("./25/binderfs" [pid 5056] getdents64(4, [pid 5387] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5389 attached [pid 5388] <... clone3 resumed> => {parent_tid=[5389]}, 88) = 5389 [pid 5387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5386] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] close(4 [pid 5389] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5388] rt_sigprocmask(SIG_SETMASK, [], [pid 5385] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5386] <... futex resumed>) = 1 [pid 5387] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5386] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5388] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5388] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] close(3 [pid 5389] <... rseq resumed>) = 0 [pid 5389] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5383] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] getdents64(3, [pid 5056] <... close resumed>) = 0 [pid 5389] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] rmdir("./25" [pid 5389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5389] memfd_create("syzkaller", 0) = 3 [pid 5058] mkdir("./26", 0777 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5389] <... mmap resumed>) = 0x7f92368d1000 [pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5383] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5386] <... futex resumed>) = 0 [pid 5383] <... futex resumed>) = 1 [pid 5057] close(3 [pid 5383] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] rmdir("./25" [pid 5056] <... rmdir resumed>) = 0 [pid 5387] <... mknod resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5387] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] sync( [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] <... rmdir resumed>) = 0 [pid 5056] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] <... futex resumed>) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] mkdir("./26", 0777 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5385] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5387] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5389] <... write resumed>) = 524288 [pid 5387] <... open resumed>) = 4 [pid 5385] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] unlink("./26/binderfs" [pid 5057] <... openat resumed>) = 3 [pid 5056] <... unlink resumed>) = 0 [pid 5056] getdents64(3, [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5390 attached [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(3 [pid 5390] set_robust_list(0x555555d616a0, 24 [pid 5057] close(3 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./26" [pid 5057] <... close resumed>) = 0 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5390 [pid 5390] chdir("./26" [pid 5056] <... rmdir resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5390] <... chdir resumed>) = 0 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5390] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5391 attached [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] mkdir("./27", 0777 [pid 5391] set_robust_list(0x555555d616a0, 24 [pid 5390] <... openat resumed>) = 3 [pid 5389] munmap(0x7f92368d1000, 138412032 [pid 5387] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... sync resumed>) = 0 [pid 5391] <... set_robust_list resumed>) = 0 [pid 5390] write(3, "1000", 4 [pid 5389] <... munmap resumed>) = 0 [pid 5386] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... mkdir resumed>) = 0 [pid 5391] chdir("./26" [pid 5390] <... write resumed>) = 4 [pid 5386] <... futex resumed>) = 1 [pid 5383] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5391] <... chdir resumed>) = 0 [pid 5390] close(3 [pid 5389] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5386] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] exit_group(0 [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5390] <... close resumed>) = 0 [pid 5387] <... futex resumed>) = 1 [pid 5386] <... futex resumed>) = ? [pid 5385] <... futex resumed>) = 0 [pid 5383] <... exit_group resumed>) = ? [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5391 [pid 5056] <... openat resumed>) = 3 [pid 5391] <... prctl resumed>) = 0 [pid 5390] symlink("/dev/binderfs", "./binderfs" [pid 5389] <... openat resumed>) = 4 [pid 5387] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5386] +++ exited with 0 +++ [pid 5385] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] <... symlink resumed>) = 0 [pid 5389] ioctl(4, LOOP_SET_FD, 3 [pid 5385] <... futex resumed>) = 0 [pid 5383] +++ exited with 0 +++ [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5391] setpgid(0, 0 [pid 5385] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5391] <... setpgid resumed>) = 0 [pid 5390] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5387] sync( [pid 5056] close(3 [pid 5390] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5390] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5390] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5391] <... openat resumed>) = 3 [pid 5390] <... mprotect resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5391] write(3, "1000", 4./strace-static-x86_64: Process 5392 attached ) = 4 [pid 5390] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5392 [pid 5055] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] set_robust_list(0x555555d616a0, 24 [pid 5055] <... openat resumed>) = 3 [pid 5392] <... set_robust_list resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5392] chdir("./27" [pid 5390] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5392] <... chdir resumed>) = 0 [pid 5390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] getdents64(3, [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5393 attached [pid 5392] <... prctl resumed>) = 0 [pid 5390] <... clone3 resumed> => {parent_tid=[5393]}, 88) = 5393 [pid 5055] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] setpgid(0, 0 [pid 5390] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] <... setpgid resumed>) = 0 [pid 5390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5391] close(3 [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5393] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5392] <... openat resumed>) = 3 [pid 5391] <... close resumed>) = 0 [pid 5390] <... futex resumed>) = 0 [pid 5391] symlink("/dev/binderfs", "./binderfs" [pid 5390] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5393] <... rseq resumed>) = 0 [pid 5389] <... ioctl resumed>) = 0 [pid 5393] set_robust_list(0x7f923ecf19a0, 24 [pid 5392] write(3, "1000", 4 [pid 5391] <... symlink resumed>) = 0 [pid 5389] close(3 [pid 5393] <... set_robust_list resumed>) = 0 [pid 5392] <... write resumed>) = 4 [pid 5391] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] <... close resumed>) = 0 [pid 5391] <... futex resumed>) = 0 [pid 5393] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] close(3 [pid 5391] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5389] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5391] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5391] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5392] <... close resumed>) = 0 [pid 5391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5389] <... mkdir resumed>) = 0 [pid 5391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5393] memfd_create("syzkaller", 0 [pid 5392] symlink("/dev/binderfs", "./binderfs" [pid 5391] <... mmap resumed>) = 0x7f923ecd1000 [pid 5389] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5393] <... memfd_create resumed>) = 3 [pid 5392] <... symlink resumed>) = 0 [pid 5391] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5392] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5387] <... sync resumed>) = 0 [pid 5393] <... mmap resumed>) = 0x7f92368d1000 [pid 5391] <... mprotect resumed>) = 0 [pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5392] <... futex resumed>) = 0 [pid 5391] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5387] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... rt_sigprocmask resumed>[], 8) = 0 [ 69.011447][ T5389] loop5: detected capacity change from 0 to 1024 [pid 5392] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5391] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5389] <... mount resumed>) = 0 [pid 5387] <... futex resumed>) = 1 [pid 5385] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5394 attached [pid 5392] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5389] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5387] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] exit_group(0 [pid 5394] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5391] <... clone3 resumed> => {parent_tid=[5394]}, 88) = 5394 [pid 5389] <... openat resumed>) = 3 [pid 5387] <... futex resumed>) = ? [pid 5385] <... exit_group resumed>) = ? [pid 5394] <... rseq resumed>) = 0 [pid 5392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5391] rt_sigprocmask(SIG_SETMASK, [], [pid 5389] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5387] +++ exited with 0 +++ [pid 5385] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = 0 [pid 5394] set_robust_list(0x7f923ecf19a0, 24 [pid 5393] <... write resumed>) = 524288 [pid 5392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5389] <... chdir resumed>) = 0 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5393] munmap(0x7f92368d1000, 138412032 [pid 5391] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5394] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] <... mmap resumed>) = 0x7f923ecd1000 [pid 5391] <... futex resumed>) = 0 [pid 5389] ioctl(4, LOOP_CLR_FD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5055] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5394] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5393] <... munmap resumed>) = 0 [pid 5392] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5391] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5389] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5394] memfd_create("syzkaller", 0) = 3 [pid 5393] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5392] <... mprotect resumed>) = 0 [pid 5389] close(4 [pid 5055] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5393] <... openat resumed>) = 4 [pid 5392] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5389] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5394] <... mmap resumed>) = 0x7f92368d1000 [pid 5392] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5389] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5389] <... futex resumed>) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5395 attached [pid 5393] ioctl(4, LOOP_SET_FD, 3 [pid 5389] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5395] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5392] <... clone3 resumed> => {parent_tid=[5395]}, 88) = 5395 [pid 5389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5388] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 4 [pid 5395] <... rseq resumed>) = 0 [pid 5392] rt_sigprocmask(SIG_SETMASK, [], [pid 5389] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5388] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(4, "", [pid 5395] set_robust_list(0x7f923ecf19a0, 24 [pid 5392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5395] <... set_robust_list resumed>) = 0 [pid 5394] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5392] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] <... mknod resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5055] getdents64(4, [pid 5395] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5395] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5392] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5395] memfd_create("syzkaller", 0 [pid 5393] <... ioctl resumed>) = 0 [pid 5392] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5389] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] getdents64(3, [pid 5393] close(3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5393] <... close resumed>) = 0 [pid 5393] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5395] <... memfd_create resumed>) = 3 [pid 5389] <... futex resumed>) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5059] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(4 [pid 5388] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5394] <... write resumed>) = 524288 [pid 5393] <... mkdir resumed>) = 0 [pid 5389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5388] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5394] munmap(0x7f92368d1000, 138412032 [pid 5393] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5388] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5395] <... mmap resumed>) = 0x7f92368d1000 [pid 5394] <... munmap resumed>) = 0 [pid 5055] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5394] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5055] <... rmdir resumed>) = 0 [pid 5394] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5393] <... mount resumed>) = 0 [pid 5389] <... open resumed>) = 4 [pid 5059] <... umount2 resumed>) = 0 [pid 5055] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5393] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5389] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5393] <... openat resumed>) = 3 [pid 5389] <... futex resumed>) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5395] <... write resumed>) = 524288 [pid 5394] close(3 [pid 5393] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5389] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5393] <... chdir resumed>) = 0 [pid 5389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5388] <... futex resumed>) = 0 [pid 5393] ioctl(4, LOOP_CLR_FD [pid 5389] sync( [pid 5388] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5394] <... close resumed>) = 0 [pid 5393] <... ioctl resumed>) = 0 [pid 5059] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] unlink("./26/binderfs" [pid 5393] close(4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5393] <... close resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... unlink resumed>) = 0 [pid 5393] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5393] <... futex resumed>) = 1 [pid 5390] <... futex resumed>) = 0 [pid 5059] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5394] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5393] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5390] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5394] <... mkdir resumed>) = 0 [pid 5393] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5390] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5393] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5390] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... openat resumed>) = 4 [pid 5395] munmap(0x7f92368d1000, 138412032 [pid 5394] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5393] <... mknod resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5055] close(3 [pid 5393] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5395] <... munmap resumed>) = 0 [pid 5393] <... futex resumed>) = 1 [pid 5390] <... futex resumed>) = 0 [ 69.096496][ T5393] loop3: detected capacity change from 0 to 1024 [ 69.127287][ T5394] loop2: detected capacity change from 0 to 1024 [pid 5059] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5395] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5393] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5390] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] rmdir("./26" [pid 5395] <... openat resumed>) = 4 [pid 5394] <... mount resumed>) = 0 [pid 5390] <... futex resumed>) = 0 [pid 5059] getdents64(4, [pid 5390] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5394] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5393] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] close(4 [pid 5393] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5059] <... close resumed>) = 0 [pid 5395] ioctl(4, LOOP_SET_FD, 3 [pid 5394] <... openat resumed>) = 3 [pid 5059] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... rmdir resumed>) = 0 [pid 5395] <... ioctl resumed>) = 0 [pid 5394] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5393] <... open resumed>) = 4 [pid 5389] <... sync resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5389] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5389] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] exit_group(0 [pid 5055] mkdir("./27", 0777 [pid 5393] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] <... futex resumed>) = ? [pid 5388] <... exit_group resumed>) = ? [pid 5394] <... chdir resumed>) = 0 [pid 5390] <... futex resumed>) = 0 [pid 5389] +++ exited with 0 +++ [pid 5390] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5390] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5394] ioctl(4, LOOP_CLR_FD) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5393] <... futex resumed>) = 1 [pid 5394] close(4 [pid 5393] sync( [pid 5388] +++ exited with 0 +++ [pid 5059] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5394] <... close resumed>) = 0 [pid 5394] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5394] <... futex resumed>) = 1 [pid 5391] <... futex resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5394] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5391] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5391] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(3 [pid 5060] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5391] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] unlink("./26/binderfs" [pid 5394] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5060] <... openat resumed>) = 3 [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5396 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5396 attached [pid 5395] close(3 [pid 5396] set_robust_list(0x555555d616a0, 24 [pid 5394] <... mknod resumed>) = 0 [pid 5393] <... sync resumed>) = 0 [pid 5059] getdents64(3, [pid 5395] <... close resumed>) = 0 [pid 5394] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5396] <... set_robust_list resumed>) = 0 [pid 5395] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5394] <... futex resumed>) = 1 [pid 5393] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5396] chdir("./27" [pid 5395] <... mkdir resumed>) = 0 [pid 5394] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5393] <... futex resumed>) = 1 [pid 5391] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5395] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5391] <... futex resumed>) = 0 [pid 5390] exit_group(0 [pid 5060] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5394] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5390] <... exit_group resumed>) = ? [pid 5059] rmdir("./26" [pid 5393] +++ exited with 0 +++ [pid 5391] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5396] <... chdir resumed>) = 0 [pid 5390] +++ exited with 0 +++ [pid 5060] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... rmdir resumed>) = 0 [pid 5396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 69.184051][ T5395] loop1: detected capacity change from 0 to 1024 [pid 5396] <... prctl resumed>) = 0 [pid 5394] <... open resumed>) = 4 [pid 5059] mkdir("./27", 0777 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5394] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5394] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5396] setpgid(0, 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5396] <... setpgid resumed>) = 0 [pid 5396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5395] <... mount resumed>) = 0 [pid 5391] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5395] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5391] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5396] <... openat resumed>) = 3 [pid 5395] <... openat resumed>) = 3 [pid 5394] <... futex resumed>) = 0 [pid 5391] <... futex resumed>) = 1 [pid 5060] newfstatat(4, "", [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5396] write(3, "1000", 4 [pid 5394] sync( [pid 5391] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5396] <... write resumed>) = 4 [pid 5060] getdents64(4, [pid 5059] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, [pid 5058] getdents64(3, [pid 5396] close(3 [pid 5395] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5396] <... close resumed>) = 0 [pid 5395] <... chdir resumed>) = 0 [pid 5060] close(4 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5396] symlink("/dev/binderfs", "./binderfs" [pid 5395] ioctl(4, LOOP_CLR_FD [pid 5060] <... close resumed>) = 0 [pid 5059] close(3 [pid 5058] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5396] <... symlink resumed>) = 0 [pid 5395] <... ioctl resumed>) = 0 [pid 5060] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... close resumed>) = 0 [pid 5396] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5395] close(4 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5396] <... futex resumed>) = 0 [pid 5395] <... close resumed>) = 0 [pid 5060] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5396] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5395] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5396] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5395] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./27/binderfs" [pid 5396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5396] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 5397 attached [pid 5392] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5397 [pid 5058] <... umount2 resumed>) = 0 [pid 5397] set_robust_list(0x555555d616a0, 24 [pid 5396] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5395] <... futex resumed>) = 0 [pid 5392] <... futex resumed>) = 1 [pid 5060] getdents64(3, [pid 5397] <... set_robust_list resumed>) = 0 [pid 5392] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5396] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5397] chdir("./27" [pid 5396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] close(3) = 0 [pid 5060] rmdir("./27"./strace-static-x86_64: Process 5398 attached [pid 5397] <... chdir resumed>) = 0 [pid 5396] <... clone3 resumed> => {parent_tid=[5398]}, 88) = 5398 [pid 5060] <... rmdir resumed>) = 0 [pid 5398] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5396] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] mkdir("./28", 0777 [pid 5398] <... rseq resumed>) = 0 [pid 5397] <... prctl resumed>) = 0 [pid 5396] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5398] set_robust_list(0x7f923ecf19a0, 24 [pid 5397] setpgid(0, 0 [pid 5396] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5395] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5394] <... sync resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5058] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5398] <... set_robust_list resumed>) = 0 [pid 5397] <... setpgid resumed>) = 0 [pid 5396] <... futex resumed>) = 0 [pid 5395] <... mknod resumed>) = 0 [pid 5394] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5398] rt_sigprocmask(SIG_SETMASK, [], [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5396] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5395] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5394] <... futex resumed>) = 0 [pid 5391] exit_group(0 [pid 5060] <... openat resumed>) = 3 [pid 5398] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5397] <... openat resumed>) = 3 [pid 5395] <... futex resumed>) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5391] <... exit_group resumed>) = ? [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5398] memfd_create("syzkaller", 0 [pid 5397] write(3, "1000", 4 [pid 5395] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5394] +++ exited with 0 +++ [pid 5392] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] +++ exited with 0 +++ [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5398] <... memfd_create resumed>) = 3 [pid 5397] <... write resumed>) = 4 [pid 5395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5397] close(3 [pid 5392] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5395] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5398] <... mmap resumed>) = 0x7f92368d1000 [pid 5397] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5397] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5397] <... symlink resumed>) = 0 [pid 5058] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5397] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5397] <... futex resumed>) = 0 [pid 5397] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5399 [pid 5058] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5397] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5398] <... write resumed>) = 524288 [pid 5397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... openat resumed>) = 4 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5397] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5397] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5397] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5395] <... open resumed>) = 4 [pid 5057] newfstatat(3, "", ./strace-static-x86_64: Process 5399 attached [pid 5397] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5399] set_robust_list(0x555555d616a0, 24 [pid 5058] newfstatat(4, "", [pid 5057] getdents64(3, [pid 5399] <... set_robust_list resumed>) = 0 [pid 5397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5399] chdir("./28" [pid 5395] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(4, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5400 attached [pid 5399] <... chdir resumed>) = 0 [pid 5397] <... clone3 resumed> => {parent_tid=[5400]}, 88) = 5400 [pid 5395] <... futex resumed>) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5400] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5398] munmap(0x7f92368d1000, 138412032 [pid 5397] rt_sigprocmask(SIG_SETMASK, [], [pid 5395] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(4, [pid 5057] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] <... rseq resumed>) = 0 [pid 5398] <... munmap resumed>) = 0 [pid 5397] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5392] <... futex resumed>) = 0 [pid 5400] set_robust_list(0x7f923ecf19a0, 24 [pid 5397] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5400] <... set_robust_list resumed>) = 0 [pid 5399] <... prctl resumed>) = 0 [pid 5398] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5397] <... futex resumed>) = 0 [pid 5395] sync( [pid 5058] close(4 [pid 5400] rt_sigprocmask(SIG_SETMASK, [], [pid 5399] setpgid(0, 0 [pid 5398] <... openat resumed>) = 4 [pid 5397] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5400] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5399] <... setpgid resumed>) = 0 [pid 5398] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... close resumed>) = 0 [pid 5400] memfd_create("syzkaller", 0 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5400] <... memfd_create resumed>) = 3 [pid 5400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5399] <... openat resumed>) = 3 [pid 5058] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... rmdir resumed>) = 0 [pid 5058] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5399] write(3, "1000", 4) = 4 [pid 5058] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5399] close(3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5399] <... close resumed>) = 0 [pid 5058] unlink("./26/binderfs" [pid 5399] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5058] getdents64(3, [pid 5399] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5400] <... write resumed>) = 524288 [pid 5399] <... futex resumed>) = 0 [pid 5395] <... sync resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5399] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5398] <... ioctl resumed>) = 0 [pid 5395] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5399] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5398] close(3 [pid 5399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... close resumed>) = 0 [pid 5395] <... futex resumed>) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5399] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5398] <... close resumed>) = 0 [pid 5395] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] exit_group(0 [pid 5058] rmdir("./26" [pid 5399] <... mmap resumed>) = 0x7f923ecd1000 [pid 5398] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5395] <... futex resumed>) = ? [pid 5392] <... exit_group resumed>) = ? [pid 5057] <... umount2 resumed>) = 0 [pid 5399] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5398] <... mkdir resumed>) = 0 [pid 5395] +++ exited with 0 +++ [pid 5058] <... rmdir resumed>) = 0 [pid 5399] <... mprotect resumed>) = 0 [pid 5398] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5392] +++ exited with 0 +++ [pid 5057] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5399] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] mkdir("./27", 0777 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5400] munmap(0x7f92368d1000, 138412032 [pid 5399] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] newfstatat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5400] <... munmap resumed>) = 0 [pid 5399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5401 attached [pid 5057] umount2("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [ 69.344933][ T5398] loop0: detected capacity change from 0 to 1024 [pid 5400] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5399] <... clone3 resumed> => {parent_tid=[5401]}, 88) = 5401 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5401] <... rseq resumed>) = 0 [pid 5400] <... openat resumed>) = 4 [pid 5398] <... mount resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5056] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] ioctl(4, LOOP_SET_FD, 3 [pid 5399] rt_sigprocmask(SIG_SETMASK, [], [pid 5398] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5401] set_robust_list(0x7f923ecf19a0, 24 [pid 5057] openat(AT_FDCWD, "./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5401] <... set_robust_list resumed>) = 0 [pid 5399] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 4 [pid 5401] rt_sigprocmask(SIG_SETMASK, [], [pid 5399] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] newfstatat(4, "", [pid 5401] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5399] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5401] memfd_create("syzkaller", 0 [pid 5399] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5398] <... openat resumed>) = 3 [pid 5058] close(3 [pid 5057] getdents64(4, [pid 5056] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5401] <... memfd_create resumed>) = 3 [pid 5398] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... openat resumed>) = 3 [pid 5398] <... chdir resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5400] <... ioctl resumed>) = 0 [pid 5398] ioctl(4, LOOP_CLR_FD [pid 5058] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5400] close(3 [pid 5398] <... ioctl resumed>) = 0 [pid 5398] close(4 [pid 5056] getdents64(3, [pid 5400] <... close resumed>) = 0 [pid 5398] <... close resumed>) = 0 [pid 5401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5398] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] getdents64(4, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5402 attached [pid 5401] <... mmap resumed>) = 0x7f92368d1000 [pid 5400] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5398] <... futex resumed>) = 1 [pid 5396] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5402] set_robust_list(0x555555d616a0, 24 [pid 5401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5398] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5396] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5402 [pid 5057] close(4 [pid 5402] <... set_robust_list resumed>) = 0 [pid 5396] <... futex resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5396] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] rmdir("./26/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5402] chdir("./27" [pid 5057] <... rmdir resumed>) = 0 [pid 5402] <... chdir resumed>) = 0 [pid 5401] <... write resumed>) = 524288 [pid 5400] <... mkdir resumed>) = 0 [pid 5057] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./26/binderfs" [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... unlink resumed>) = 0 [pid 5402] <... prctl resumed>) = 0 [pid 5057] getdents64(3, [pid 5402] setpgid(0, 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5402] <... setpgid resumed>) = 0 [pid 5401] munmap(0x7f92368d1000, 138412032 [pid 5057] close(3 [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5400] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5398] <... mknod resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5401] <... munmap resumed>) = 0 [pid 5057] rmdir("./26" [pid 5402] <... openat resumed>) = 3 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5401] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5398] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] mkdir("./27", 0777 [pid 5402] write(3, "1000", 4 [pid 5398] <... futex resumed>) = 1 [pid 5396] <... futex resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5396] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5402] <... write resumed>) = 4 [pid 5396] <... futex resumed>) = 0 [pid 5396] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5402] close(3 [pid 5398] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5402] <... close resumed>) = 0 [pid 5402] symlink("/dev/binderfs", "./binderfs" [pid 5401] <... openat resumed>) = 4 [ 69.397801][ T5400] loop4: detected capacity change from 0 to 1024 [pid 5401] ioctl(4, LOOP_SET_FD, 3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5402] <... symlink resumed>) = 0 [pid 5400] <... mount resumed>) = 0 [pid 5398] <... open resumed>) = 4 [pid 5056] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5400] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5400] <... openat resumed>) = 3 [pid 5056] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5402] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5400] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5402] <... futex resumed>) = 0 [pid 5400] <... chdir resumed>) = 0 [pid 5398] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5402] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5400] ioctl(4, LOOP_CLR_FD [pid 5402] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5398] <... futex resumed>) = 1 [pid 5396] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5402] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5400] <... ioctl resumed>) = 0 [pid 5398] sync( [pid 5396] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5402] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5400] close(4 [pid 5396] <... futex resumed>) = 0 [pid 5402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5401] <... ioctl resumed>) = 0 [pid 5400] <... close resumed>) = 0 [pid 5396] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 4 [pid 5402] <... mmap resumed>) = 0x7f923ecd1000 [pid 5401] close(3 [pid 5400] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] newfstatat(4, "", [pid 5402] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5401] <... close resumed>) = 0 [pid 5400] <... futex resumed>) = 1 [pid 5397] <... futex resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5402] <... mprotect resumed>) = 0 [pid 5400] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5401] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] close(3 [pid 5397] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... close resumed>) = 0 [pid 5397] <... futex resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5402] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5401] <... mkdir resumed>) = 0 [pid 5400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5398] <... sync resumed>) = 0 [pid 5397] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, ./strace-static-x86_64: Process 5403 attached [pid 5402] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5401] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5400] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5398] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5403 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5403] set_robust_list(0x555555d616a0, 24 [pid 5402] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5398] <... futex resumed>) = 1 [pid 5396] <... futex resumed>) = 0 [pid 5056] getdents64(4, ./strace-static-x86_64: Process 5404 attached [pid 5403] <... set_robust_list resumed>) = 0 [pid 5396] exit_group(0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5404] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5403] chdir("./27" [pid 5396] <... exit_group resumed>) = ? [pid 5056] close(4 [pid 5404] <... rseq resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5404] set_robust_list(0x7f923ecf19a0, 24 [pid 5056] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5404] <... set_robust_list resumed>) = 0 [pid 5404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5404] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... rmdir resumed>) = 0 [pid 5403] <... chdir resumed>) = 0 [pid 5056] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5402] <... clone3 resumed> => {parent_tid=[5404]}, 88) = 5404 [pid 5403] <... prctl resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5403] setpgid(0, 0 [pid 5400] <... mknod resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5402] rt_sigprocmask(SIG_SETMASK, [], [pid 5403] <... setpgid resumed>) = 0 [pid 5402] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5402] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5404] <... futex resumed>) = 0 [pid 5402] <... futex resumed>) = 1 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5404] memfd_create("syzkaller", 0 [pid 5403] <... openat resumed>) = 3 [pid 5402] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5056] unlink("./27/binderfs" [pid 5404] <... memfd_create resumed>) = 3 [pid 5400] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5400] <... futex resumed>) = 1 [pid 5397] <... futex resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5404] <... mmap resumed>) = 0x7f92368d1000 [pid 5403] write(3, "1000", 4 [pid 5400] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5397] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5403] <... write resumed>) = 4 [pid 5400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5397] <... futex resumed>) = 0 [pid 5056] getdents64(3, [pid 5403] close(3 [pid 5400] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5398] +++ exited with 0 +++ [pid 5397] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5396] +++ exited with 0 +++ [pid 5404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5403] <... close resumed>) = 0 [pid 5401] <... mount resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5403] symlink("/dev/binderfs", "./binderfs" [pid 5056] close(3 [pid 5401] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5401] <... openat resumed>) = 3 [pid 5400] <... open resumed>) = 4 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5403] <... symlink resumed>) = 0 [pid 5401] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5400] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./27" [pid 5055] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5403] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... chdir resumed>) = 0 [pid 5400] <... futex resumed>) = 1 [pid 5397] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5401] ioctl(4, LOOP_CLR_FD [pid 5400] sync( [pid 5397] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [ 69.456656][ T5401] loop5: detected capacity change from 0 to 1024 [pid 5055] newfstatat(3, "", [pid 5403] <... futex resumed>) = 0 [pid 5401] <... ioctl resumed>) = 0 [pid 5397] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5404] <... write resumed>) = 524288 [pid 5403] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5401] close(4 [pid 5397] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] mkdir("./28", 0777 [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... mkdir resumed>) = 0 [pid 5403] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5401] <... close resumed>) = 0 [pid 5403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5403] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5401] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5403] <... mprotect resumed>) = 0 [pid 5401] <... futex resumed>) = 1 [pid 5403] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5401] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... openat resumed>) = 3 [pid 5399] <... futex resumed>) = 0 [pid 5399] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5403] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5399] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5404] munmap(0x7f92368d1000, 138412032./strace-static-x86_64: Process 5405 attached [pid 5403] <... clone3 resumed> => {parent_tid=[5405]}, 88) = 5405 [pid 5403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5405] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5404] <... munmap resumed>) = 0 [pid 5403] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5405] <... rseq resumed>) = 0 [pid 5404] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5403] <... futex resumed>) = 0 [pid 5405] set_robust_list(0x7f923ecf19a0, 24 [pid 5404] <... openat resumed>) = 4 [pid 5403] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5405] <... set_robust_list resumed>) = 0 [pid 5404] ioctl(4, LOOP_SET_FD, 3 [pid 5401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5405] rt_sigprocmask(SIG_SETMASK, [], [pid 5404] <... ioctl resumed>) = 0 [pid 5401] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5055] <... umount2 resumed>) = 0 [pid 5405] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5404] close(3 [pid 5055] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5404] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] memfd_create("syzkaller", 0 [pid 5404] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5404] <... mkdir resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5405] <... memfd_create resumed>) = 3 [pid 5056] close(3 [pid 5055] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5405] <... mmap resumed>) = 0x7f92368d1000 [pid 5055] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5406 attached [pid 5405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5401] <... mknod resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5406] set_robust_list(0x555555d616a0, 24 [pid 5401] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5406 [pid 5404] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] newfstatat(4, "", [pid 5406] <... set_robust_list resumed>) = 0 [pid 5401] <... futex resumed>) = 1 [pid 5399] <... futex resumed>) = 0 [pid 5397] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5406] chdir("./28" [pid 5401] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5399] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5399] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5406] <... chdir resumed>) = 0 [pid 5404] <... mount resumed>) = 0 [pid 5401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5399] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5404] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] getdents64(4, [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] <... write resumed>) = 524288 [pid 5404] <... openat resumed>) = 3 [pid 5401] <... open resumed>) = 4 [pid 5400] <... sync resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5406] <... prctl resumed>) = 0 [pid 5404] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5401] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5406] setpgid(0, 0 [pid 5404] <... chdir resumed>) = 0 [pid 5055] close(4 [pid 5406] <... setpgid resumed>) = 0 [pid 5404] ioctl(4, LOOP_CLR_FD [pid 5399] <... futex resumed>) = 0 [pid 5401] <... futex resumed>) = 1 [pid 5404] <... ioctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5399] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5404] close(4 [pid 5401] sync( [pid 5399] <... futex resumed>) = 0 [pid 5055] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5406] <... openat resumed>) = 3 [pid 5404] <... close resumed>) = 0 [pid 5400] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5406] write(3, "1000", 4 [pid 5404] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5400] <... futex resumed>) = 0 [pid 5399] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5397] exit_group(0 [pid 5406] <... write resumed>) = 4 [pid 5404] <... futex resumed>) = 1 [pid 5402] <... futex resumed>) = 0 [pid 5397] <... exit_group resumed>) = ? [pid 5055] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] close(3 [pid 5405] munmap(0x7f92368d1000, 138412032 [pid 5404] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5402] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5400] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5406] <... close resumed>) = 0 [pid 5405] <... munmap resumed>) = 0 [pid 5404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5402] <... futex resumed>) = 0 [pid 5397] +++ exited with 0 +++ [pid 5055] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5406] symlink("/dev/binderfs", "./binderfs" [ 69.544199][ T5404] loop3: detected capacity change from 0 to 1024 [pid 5404] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5402] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5406] <... symlink resumed>) = 0 [pid 5405] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5404] <... mknod resumed>) = 0 [pid 5055] unlink("./27/binderfs" [pid 5406] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] <... unlink resumed>) = 0 [pid 5406] <... futex resumed>) = 0 [pid 5405] <... openat resumed>) = 4 [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5406] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5405] ioctl(4, LOOP_SET_FD, 3 [pid 5404] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5406] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5406] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5404] <... futex resumed>) = 1 [pid 5402] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5402] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5406] <... mmap resumed>) = 0x7f923ecd1000 [pid 5404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5402] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] close(3 [pid 5406] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5402] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5406] <... mprotect resumed>) = 0 [pid 5406] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5406] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] newfstatat(3, "", [pid 5406] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./27"./strace-static-x86_64: Process 5407 attached [pid 5401] <... sync resumed>) = 0 [pid 5059] getdents64(3, [pid 5055] <... rmdir resumed>) = 0 [pid 5407] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5406] <... clone3 resumed> => {parent_tid=[5407]}, 88) = 5407 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5407] <... rseq resumed>) = 0 [pid 5406] rt_sigprocmask(SIG_SETMASK, [], [pid 5404] <... open resumed>) = 4 [pid 5401] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./28", 0777 [pid 5407] set_robust_list(0x7f923ecf19a0, 24 [pid 5406] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5401] <... futex resumed>) = 1 [pid 5399] <... futex resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5407] <... set_robust_list resumed>) = 0 [pid 5406] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5404] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5399] exit_group(0 [pid 5407] rt_sigprocmask(SIG_SETMASK, [], [pid 5406] <... futex resumed>) = 0 [pid 5404] <... futex resumed>) = 1 [pid 5402] <... futex resumed>) = 0 [pid 5399] <... exit_group resumed>) = ? [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5407] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5406] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5405] <... ioctl resumed>) = 0 [pid 5404] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5402] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = ? [pid 5402] <... futex resumed>) = 0 [pid 5405] close(3 [pid 5407] memfd_create("syzkaller", 0 [pid 5402] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5407] <... memfd_create resumed>) = 3 [pid 5405] <... close resumed>) = 0 [pid 5404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5401] +++ exited with 0 +++ [pid 5055] <... openat resumed>) = 3 [pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5405] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5404] sync( [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5407] <... mmap resumed>) = 0x7f92368d1000 [pid 5405] <... mkdir resumed>) = 0 [pid 5399] +++ exited with 0 +++ [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5405] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5060] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5408 attached [pid 5060] newfstatat(3, "", [pid 5408] set_robust_list(0x555555d616a0, 24 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5060] getdents64(3, [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5408 [pid 5408] chdir("./28" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5408] <... chdir resumed>) = 0 [pid 5060] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] <... mount resumed>) = 0 [pid 5408] <... prctl resumed>) = 0 [pid 5408] setpgid(0, 0 [ 69.610680][ T5405] loop2: detected capacity change from 0 to 1024 [pid 5405] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5408] <... setpgid resumed>) = 0 [pid 5405] <... openat resumed>) = 3 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... umount2 resumed>) = 0 [pid 5059] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] <... openat resumed>) = 3 [pid 5405] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5408] write(3, "1000", 4 [pid 5405] <... chdir resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5408] <... write resumed>) = 4 [pid 5405] ioctl(4, LOOP_CLR_FD [pid 5404] <... sync resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5408] close(3 [pid 5405] <... ioctl resumed>) = 0 [pid 5404] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5404] <... futex resumed>) = 1 [pid 5402] <... futex resumed>) = 0 [pid 5408] <... close resumed>) = 0 [pid 5402] exit_group(0 [pid 5059] getdents64(4, [pid 5408] symlink("/dev/binderfs", "./binderfs" [pid 5405] close(4 [pid 5402] <... exit_group resumed>) = ? [pid 5408] <... symlink resumed>) = 0 [pid 5405] <... close resumed>) = 0 [pid 5404] +++ exited with 0 +++ [pid 5402] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5405] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5402, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5405] <... futex resumed>) = 1 [pid 5403] <... futex resumed>) = 0 [pid 5059] getdents64(4, [pid 5408] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5405] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5403] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5408] <... futex resumed>) = 0 [pid 5405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5403] <... futex resumed>) = 0 [pid 5059] close(4 [pid 5408] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5405] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5403] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5408] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5405] <... mknod resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... rmdir resumed>) = 0 [pid 5408] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5408] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5408] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5060] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5405] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5408] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5405] <... futex resumed>) = 1 [pid 5403] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5408] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5407] <... write resumed>) = 524288 [pid 5405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5403] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] newfstatat(3, "", ./strace-static-x86_64: Process 5409 attached [pid 5403] <... futex resumed>) = 0 [pid 5409] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5403] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(4, "", [pid 5059] unlink("./27/binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5409] <... rseq resumed>) = 0 [pid 5408] <... clone3 resumed> => {parent_tid=[5409]}, 88) = 5409 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5409] set_robust_list(0x7f923ecf19a0, 24 [pid 5408] rt_sigprocmask(SIG_SETMASK, [], [pid 5405] <... open resumed>) = 4 [pid 5060] getdents64(4, [pid 5059] getdents64(3, [pid 5058] getdents64(3, [pid 5409] <... set_robust_list resumed>) = 0 [pid 5409] rt_sigprocmask(SIG_SETMASK, [], [pid 5408] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5408] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5059] close(3 [pid 5058] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5408] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5409] memfd_create("syzkaller", 0 [pid 5408] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5405] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5059] rmdir("./27" [pid 5409] <... memfd_create resumed>) = 3 [pid 5407] munmap(0x7f92368d1000, 138412032 [pid 5405] <... futex resumed>) = 1 [pid 5403] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5407] <... munmap resumed>) = 0 [pid 5405] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5403] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5409] <... mmap resumed>) = 0x7f92368d1000 [pid 5407] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5403] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] mkdir("./28", 0777 [pid 5409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5407] <... openat resumed>) = 4 [pid 5405] sync( [pid 5403] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5407] ioctl(4, LOOP_SET_FD, 3 [pid 5060] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... mkdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./28/binderfs" [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... umount2 resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5060] getdents64(3, [pid 5059] close(3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5407] <... ioctl resumed>) = 0 [pid 5060] close(3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... close resumed>) = 0 [pid 5058] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] <... write resumed>) = 524288 [pid 5060] rmdir("./28" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5058] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] mkdir("./29", 0777 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5410 [pid 5058] <... openat resumed>) = 4 [pid 5058] newfstatat(4, "", ./strace-static-x86_64: Process 5410 attached [pid 5060] <... mkdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5410] set_robust_list(0x555555d616a0, 24 [pid 5058] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5410] chdir("./28" [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] close(4 [pid 5410] <... chdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5410] <... prctl resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5410] setpgid(0, 0) = 0 [pid 5405] <... sync resumed>) = 0 [pid 5058] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5409] munmap(0x7f92368d1000, 138412032 [pid 5405] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] <... openat resumed>) = 3 [pid 5409] <... munmap resumed>) = 0 [pid 5405] <... futex resumed>) = 1 [pid 5403] <... futex resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5405] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5403] exit_group(0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5410] write(3, "1000", 4 [pid 5409] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5405] <... futex resumed>) = ? [pid 5403] <... exit_group resumed>) = ? [pid 5058] unlink("./27/binderfs" [pid 5410] <... write resumed>) = 4 [pid 5409] <... openat resumed>) = 4 [pid 5407] close(3 [pid 5405] +++ exited with 0 +++ [pid 5403] +++ exited with 0 +++ [pid 5060] <... openat resumed>) = 3 [ 69.734554][ T5407] loop1: detected capacity change from 0 to 1024 [pid 5410] close(3 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... unlink resumed>) = 0 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5409] ioctl(4, LOOP_SET_FD, 3 [pid 5410] <... close resumed>) = 0 [pid 5409] <... ioctl resumed>) = 0 [pid 5407] <... close resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] getdents64(3, [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5410] symlink("/dev/binderfs", "./binderfs" [pid 5409] close(3 [pid 5407] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] close(3 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5410] <... symlink resumed>) = 0 [pid 5409] <... close resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] close(3 [pid 5410] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5409] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5407] <... mkdir resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... close resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5409] <... mkdir resumed>) = 0 [pid 5407] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] rmdir("./27" [pid 5410] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5409] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... rmdir resumed>) = 0 [pid 5057] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5411 attached [pid 5410] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5411 [pid 5058] mkdir("./28", 0777 [pid 5411] set_robust_list(0x555555d616a0, 24 [pid 5410] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5407] <... mount resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5411] <... set_robust_list resumed>) = 0 [pid 5410] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5407] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5411] chdir("./29" [pid 5410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5407] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5411] <... chdir resumed>) = 0 [pid 5410] <... mmap resumed>) = 0x7f923ecd1000 [pid 5409] <... mount resumed>) = 0 [pid 5407] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5409] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5407] <... chdir resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5411] <... prctl resumed>) = 0 [pid 5410] <... mprotect resumed>) = 0 [pid 5409] <... openat resumed>) = 3 [pid 5407] ioctl(4, LOOP_CLR_FD [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5411] setpgid(0, 0 [pid 5410] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5409] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5410] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5409] <... chdir resumed>) = 0 [pid 5407] <... ioctl resumed>) = 0 [pid 5058] close(3 [pid 5411] <... setpgid resumed>) = 0 [pid 5410] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5407] close(4 [pid 5058] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5407] <... close resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] newfstatat(3, "", [pid 5411] <... openat resumed>) = 3 [pid 5410] <... clone3 resumed> => {parent_tid=[5412]}, 88) = 5412 [pid 5407] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] write(3, "1000", 4 [pid 5410] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5411] <... write resumed>) = 4 [pid 5410] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5409] ioctl(4, LOOP_CLR_FD [pid 5057] getdents64(3, ./strace-static-x86_64: Process 5413 attached ./strace-static-x86_64: Process 5412 attached [pid 5411] close(3 [pid 5410] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5409] <... ioctl resumed>) = 0 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5413] set_robust_list(0x555555d616a0, 24 [pid 5412] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5411] <... close resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5409] close(4 [pid 5407] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5406] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5413] <... set_robust_list resumed>) = 0 [pid 5412] <... rseq resumed>) = 0 [pid 5411] symlink("/dev/binderfs", "./binderfs" [pid 5410] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5409] <... close resumed>) = 0 [pid 5407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5406] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5413 [pid 5413] chdir("./28" [pid 5412] set_robust_list(0x7f923ecf19a0, 24 [pid 5411] <... symlink resumed>) = 0 [pid 5409] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5406] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5412] <... set_robust_list resumed>) = 0 [pid 5411] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5412] rt_sigprocmask(SIG_SETMASK, [], [pid 5411] <... futex resumed>) = 0 [pid 5409] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 69.775984][ T5409] loop0: detected capacity change from 0 to 1024 [pid 5408] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] <... chdir resumed>) = 0 [pid 5412] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5411] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5408] <... futex resumed>) = 0 [pid 5407] <... mknod resumed>) = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5412] memfd_create("syzkaller", 0 [pid 5411] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5409] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5408] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5407] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] <... prctl resumed>) = 0 [pid 5412] <... memfd_create resumed>) = 3 [pid 5411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5409] <... mknod resumed>) = 0 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5413] setpgid(0, 0 [pid 5412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5409] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5406] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = 0 [pid 5413] <... setpgid resumed>) = 0 [pid 5412] <... mmap resumed>) = 0x7f92368d1000 [pid 5411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5406] <... futex resumed>) = 0 [pid 5411] <... mmap resumed>) = 0x7f923ecd1000 [pid 5408] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5408] <... futex resumed>) = 0 [pid 5411] <... mprotect resumed>) = 0 [pid 5408] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5411] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5409] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5411] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5409] <... open resumed>) = 4 [pid 5406] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5414 attached [pid 5411] <... clone3 resumed> => {parent_tid=[5414]}, 88) = 5414 [pid 5414] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5413] <... openat resumed>) = 3 [pid 5411] rt_sigprocmask(SIG_SETMASK, [], [pid 5409] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... rseq resumed>) = 0 [pid 5411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5407] <... open resumed>) = 4 [pid 5414] set_robust_list(0x7f923ecf19a0, 24 [pid 5413] write(3, "1000", 4 [pid 5411] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5409] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] <... write resumed>) = 4 [pid 5411] <... futex resumed>) = 0 [pid 5409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5408] <... futex resumed>) = 0 [pid 5414] rt_sigprocmask(SIG_SETMASK, [], [pid 5413] close(3 [pid 5411] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5409] sync( [pid 5408] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] newfstatat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5414] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5413] <... close resumed>) = 0 [pid 5412] <... write resumed>) = 524288 [pid 5407] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] symlink("/dev/binderfs", "./binderfs" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5414] memfd_create("syzkaller", 0 [pid 5057] umount2("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... memfd_create resumed>) = 3 [pid 5413] <... symlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5413] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5414] <... mmap resumed>) = 0x7f92368d1000 [pid 5413] <... futex resumed>) = 0 [pid 5412] munmap(0x7f92368d1000, 138412032 [pid 5407] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5406] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5413] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5412] <... munmap resumed>) = 0 [pid 5407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5406] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5413] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5407] sync( [pid 5406] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5057] newfstatat(4, "", [pid 5413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5412] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5413] <... mmap resumed>) = 0x7f923ecd1000 [pid 5412] <... openat resumed>) = 4 [pid 5413] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5412] ioctl(4, LOOP_SET_FD, 3 [pid 5057] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] close(4) = 0 [pid 5057] rmdir("./27/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5412] <... ioctl resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5057] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./27/binderfs" [pid 5413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5057] getdents64(3, [pid 5413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] close(3) = 0 [pid 5409] <... sync resumed>) = 0 [pid 5057] rmdir("./27" [pid 5409] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rmdir resumed>) = 0 [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5409] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] exit_group(0./strace-static-x86_64: Process 5415 attached [pid 5414] <... write resumed>) = 524288 [pid 5409] <... futex resumed>) = ? [pid 5408] <... exit_group resumed>) = ? [pid 5057] mkdir("./28", 0777 [pid 5415] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5414] munmap(0x7f92368d1000, 138412032 [pid 5413] <... clone3 resumed> => {parent_tid=[5415]}, 88) = 5415 [pid 5412] close(3 [pid 5409] +++ exited with 0 +++ [pid 5408] +++ exited with 0 +++ [pid 5407] <... sync resumed>) = 0 [pid 5415] <... rseq resumed>) = 0 [pid 5413] rt_sigprocmask(SIG_SETMASK, [], [pid 5412] <... close resumed>) = 0 [pid 5407] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... mkdir resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5415] set_robust_list(0x7f923ecf19a0, 24 [pid 5414] <... munmap resumed>) = 0 [pid 5413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5412] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5413] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] <... futex resumed>) = 0 [pid 5406] exit_group(0 [pid 5415] <... set_robust_list resumed>) = 0 [pid 5414] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5415] rt_sigprocmask(SIG_SETMASK, [], [pid 5414] <... openat resumed>) = 4 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] <... restart_syscall resumed>) = 0 [pid 5415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5414] ioctl(4, LOOP_SET_FD, 3 [pid 5412] <... mkdir resumed>) = 0 [pid 5415] memfd_create("syzkaller", 0 [pid 5413] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5407] <... futex resumed>) = ? [pid 5406] <... exit_group resumed>) = ? [pid 5057] <... openat resumed>) = 3 [pid 5055] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5415] <... memfd_create resumed>) = 3 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] close(3 [pid 5055] <... openat resumed>) = 3 [pid 5407] +++ exited with 0 +++ [pid 5057] <... close resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5415] <... mmap resumed>) = 0x7f92368d1000 [pid 5406] +++ exited with 0 +++ [pid 5055] getdents64(3, [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5416 attached [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5416] set_robust_list(0x555555d616a0, 24 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5416 [pid 5055] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] <... set_robust_list resumed>) = 0 [pid 5412] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] chdir("./28") = 0 [pid 5415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... openat resumed>) = 3 [pid 5416] <... prctl resumed>) = 0 [pid 5416] setpgid(0, 0) = 0 [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] newfstatat(3, "", [pid 5416] <... openat resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5416] write(3, "1000", 4) = 4 [pid 5056] getdents64(3, [pid 5416] close(3 [pid 5414] <... ioctl resumed>) = 0 [pid 5416] <... close resumed>) = 0 [pid 5414] close(3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] symlink("/dev/binderfs", "./binderfs" [pid 5414] <... close resumed>) = 0 [pid 5416] <... symlink resumed>) = 0 [pid 5415] <... write resumed>) = 524288 [pid 5414] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5412] <... mount resumed>) = 0 [pid 5416] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5414] <... mkdir resumed>) = 0 [pid 5412] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5416] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5412] <... openat resumed>) = 3 [pid 5416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [ 69.885450][ T5412] loop4: detected capacity change from 0 to 1024 [ 69.917112][ T5414] loop5: detected capacity change from 0 to 1024 [pid 5416] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5414] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5416] <... mprotect resumed>) = 0 [pid 5416] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5412] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5416] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5412] <... chdir resumed>) = 0 [pid 5055] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5415] munmap(0x7f92368d1000, 138412032 [pid 5414] <... mount resumed>) = 0 [pid 5412] ioctl(4, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5417 attached [pid 5415] <... munmap resumed>) = 0 [pid 5414] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5417] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5416] <... clone3 resumed> => {parent_tid=[5417]}, 88) = 5417 [pid 5414] <... openat resumed>) = 3 [pid 5412] <... ioctl resumed>) = 0 [pid 5417] <... rseq resumed>) = 0 [pid 5416] rt_sigprocmask(SIG_SETMASK, [], [pid 5415] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5414] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5417] set_robust_list(0x7f923ecf19a0, 24 [pid 5416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5415] <... openat resumed>) = 4 [pid 5414] <... chdir resumed>) = 0 [pid 5417] <... set_robust_list resumed>) = 0 [pid 5416] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5415] ioctl(4, LOOP_SET_FD, 3 [pid 5414] ioctl(4, LOOP_CLR_FD [pid 5055] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5417] rt_sigprocmask(SIG_SETMASK, [], [pid 5416] <... futex resumed>) = 0 [pid 5414] <... ioctl resumed>) = 0 [pid 5412] close(4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] <... ioctl resumed>) = 0 [pid 5412] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5417] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5416] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5414] close(4 [pid 5055] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5417] memfd_create("syzkaller", 0 [pid 5414] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5414] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5417] <... memfd_create resumed>) = 3 [pid 5414] <... futex resumed>) = 1 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5414] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5411] <... futex resumed>) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5417] <... mmap resumed>) = 0x7f92368d1000 [pid 5414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5411] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5414] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5412] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] <... futex resumed>) = 0 [pid 5056] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5411] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] close(4) = 0 [pid 5055] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5414] <... mknod resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5412] <... futex resumed>) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5414] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] unlink("./28/binderfs" [pid 5417] <... write resumed>) = 524288 [pid 5415] close(3 [pid 5414] <... futex resumed>) = 1 [pid 5412] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5411] <... futex resumed>) = 0 [pid 5410] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... unlink resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5411] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5411] <... futex resumed>) = 0 [pid 5056] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5415] <... close resumed>) = 0 [pid 5414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5411] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./28") = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5415] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] mkdir("./29", 0777 [pid 5415] <... mkdir resumed>) = 0 [pid 5412] <... mknod resumed>) = 0 [pid 5412] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 4 [pid 5055] <... mkdir resumed>) = 0 [pid 5414] <... open resumed>) = 4 [pid 5412] <... futex resumed>) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5415] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5412] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5410] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(4, "", [pid 5415] <... mount resumed>) = 0 [pid 5412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5410] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5417] munmap(0x7f92368d1000, 138412032 [pid 5415] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5414] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5410] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5417] <... munmap resumed>) = 0 [pid 5415] <... openat resumed>) = 3 [pid 5414] <... futex resumed>) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5415] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [ 69.972645][ T5415] loop3: detected capacity change from 0 to 1024 [pid 5411] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5417] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5415] <... chdir resumed>) = 0 [pid 5414] sync( [pid 5411] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5417] <... openat resumed>) = 4 [pid 5415] ioctl(4, LOOP_CLR_FD [pid 5412] <... open resumed>) = 4 [pid 5411] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(4, [pid 5055] close(3 [pid 5417] ioctl(4, LOOP_SET_FD, 3 [pid 5415] <... ioctl resumed>) = 0 [pid 5412] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5415] close(4 [pid 5412] <... futex resumed>) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5415] <... close resumed>) = 0 ./strace-static-x86_64: Process 5418 attached [pid 5415] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5412] sync( [pid 5410] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(4 [pid 5415] <... futex resumed>) = 1 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5418 [pid 5415] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] <... futex resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5413] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5415] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5418] set_robust_list(0x555555d616a0, 24) = 0 [pid 5418] chdir("./29" [pid 5413] <... futex resumed>) = 0 [pid 5056] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5418] <... chdir resumed>) = 0 [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5418] setpgid(0, 0 [pid 5413] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... rmdir resumed>) = 0 [pid 5418] <... setpgid resumed>) = 0 [pid 5056] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] <... mknod resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5418] <... openat resumed>) = 3 [pid 5415] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5418] write(3, "1000", 4 [pid 5417] <... ioctl resumed>) = 0 [pid 5415] <... futex resumed>) = 1 [pid 5413] <... futex resumed>) = 0 [pid 5418] <... write resumed>) = 4 [pid 5417] close(3 [pid 5415] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5414] <... sync resumed>) = 0 [pid 5413] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5412] <... sync resumed>) = 0 [pid 5418] close(3 [pid 5417] <... close resumed>) = 0 [pid 5415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5414] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] <... futex resumed>) = 0 [pid 5412] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./28/binderfs" [pid 5418] <... close resumed>) = 0 [pid 5417] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5415] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5414] <... futex resumed>) = 1 [pid 5413] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5412] <... futex resumed>) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5418] symlink("/dev/binderfs", "./binderfs" [pid 5417] <... mkdir resumed>) = 0 [pid 5414] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5412] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5411] exit_group(0 [pid 5410] exit_group(0 [pid 5056] <... unlink resumed>) = 0 [pid 5418] <... symlink resumed>) = 0 [pid 5414] <... futex resumed>) = ? [pid 5412] <... futex resumed>) = ? [pid 5411] <... exit_group resumed>) = ? [pid 5410] <... exit_group resumed>) = ? [pid 5056] getdents64(3, [pid 5418] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5417] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5415] <... open resumed>) = 4 [pid 5414] +++ exited with 0 +++ [pid 5412] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ [pid 5418] <... futex resumed>) = 0 [pid 5410] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5418] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5056] close(3 [pid 5418] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] <... close resumed>) = 0 [pid 5418] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5417] <... mount resumed>) = 0 [pid 5060] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5418] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5417] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./28" [pid 5418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5417] <... openat resumed>) = 3 [pid 5415] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5418] <... mmap resumed>) = 0x7f923ecd1000 [pid 5417] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5415] <... futex resumed>) = 1 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... rmdir resumed>) = 0 [pid 5418] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5417] <... chdir resumed>) = 0 [pid 5415] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] <... futex resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5059] newfstatat(3, "", [pid 5418] <... mprotect resumed>) = 0 [pid 5417] ioctl(4, LOOP_CLR_FD [pid 5415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5413] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] mkdir("./29", 0777 [ 70.039627][ T5417] loop2: detected capacity change from 0 to 1024 [pid 5418] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5417] <... ioctl resumed>) = 0 [pid 5415] sync( [pid 5413] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5059] getdents64(3, [pid 5418] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5417] close(4 [pid 5413] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... mkdir resumed>) = 0 [pid 5418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} => {parent_tid=[5419]}, 88) = 5419 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5419 attached [pid 5418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5418] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5418] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5417] <... close resumed>) = 0 [pid 5417] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5417] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5416] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5416] <... futex resumed>) = 0 [pid 5060] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 3 [pid 5419] <... rseq resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5419] set_robust_list(0x7f923ecf19a0, 24 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5419] <... set_robust_list resumed>) = 0 [pid 5419] rt_sigprocmask(SIG_SETMASK, [], [pid 5416] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] close(3 [pid 5419] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5419] memfd_create("syzkaller", 0 [pid 5056] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5419] <... memfd_create resumed>) = 3 [pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5417] <... mknod resumed>) = 0 ./strace-static-x86_64: Process 5420 attached [pid 5420] set_robust_list(0x555555d616a0, 24) = 0 [pid 5420] chdir("./29" [pid 5419] <... mmap resumed>) = 0x7f92368d1000 [pid 5417] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... chdir resumed>) = 0 [pid 5417] <... futex resumed>) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5417] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5416] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... prctl resumed>) = 0 [pid 5417] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5416] <... futex resumed>) = 0 [pid 5420] setpgid(0, 0 [pid 5417] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5416] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5420] <... setpgid resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5420 [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5420] <... openat resumed>) = 3 [pid 5417] <... open resumed>) = 4 [pid 5420] write(3, "1000", 4) = 4 [pid 5420] close(3 [pid 5419] <... write resumed>) = 524288 [pid 5417] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5415] <... sync resumed>) = 0 [pid 5420] <... close resumed>) = 0 [pid 5420] symlink("/dev/binderfs", "./binderfs" [pid 5415] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... symlink resumed>) = 0 [pid 5419] munmap(0x7f92368d1000, 138412032 [pid 5417] <... futex resumed>) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5420] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] <... munmap resumed>) = 0 [pid 5417] sync( [pid 5416] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5415] <... futex resumed>) = 1 [pid 5413] <... futex resumed>) = 0 [pid 5420] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5413] exit_group(0 [pid 5420] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5419] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5416] <... futex resumed>) = 0 [pid 5413] <... exit_group resumed>) = ? [pid 5420] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5419] <... openat resumed>) = 4 [pid 5419] ioctl(4, LOOP_SET_FD, 3 [pid 5420] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5416] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5415] +++ exited with 0 +++ [pid 5413] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5420] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5420] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] <... mprotect resumed>) = 0 [pid 5417] <... sync resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5417] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... restart_syscall resumed>) = 0 [pid 5417] <... futex resumed>) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5059] <... openat resumed>) = 4 [pid 5420] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5417] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5416] exit_group(0 [pid 5060] newfstatat(4, "", [pid 5059] newfstatat(4, "", [pid 5420] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5417] <... futex resumed>) = ? [pid 5416] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5420] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5417] +++ exited with 0 +++ ./strace-static-x86_64: Process 5421 attached [pid 5416] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5059] getdents64(4, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5420] <... clone3 resumed> => {parent_tid=[5421]}, 88) = 5421 [pid 5421] <... rseq resumed>) = 0 [pid 5420] rt_sigprocmask(SIG_SETMASK, [], [pid 5419] <... ioctl resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5421] set_robust_list(0x7f923ecf19a0, 24 [pid 5420] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] getdents64(4, [pid 5059] getdents64(4, [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5416, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5421] <... set_robust_list resumed>) = 0 [pid 5420] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5421] rt_sigprocmask(SIG_SETMASK, [], [pid 5420] <... futex resumed>) = 0 [pid 5419] close(3 [pid 5060] close(4 [pid 5059] close(4 [pid 5058] <... openat resumed>) = 3 [pid 5421] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5419] <... close resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5420] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5421] memfd_create("syzkaller", 0 [pid 5419] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5421] <... memfd_create resumed>) = 3 [pid 5419] <... mkdir resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] getdents64(3, [pid 5421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5419] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] newfstatat(AT_FDCWD, "./29/binderfs", [ 70.176737][ T5419] loop0: detected capacity change from 0 to 1024 [pid 5059] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./28/binderfs" [pid 5060] unlink("./29/binderfs" [pid 5059] <... unlink resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5060] getdents64(3, [pid 5059] getdents64(3, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] close(3 [pid 5059] close(3 [pid 5057] <... openat resumed>) = 3 [pid 5421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5419] <... mount resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5419] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] rmdir("./29" [pid 5059] rmdir("./28" [pid 5419] <... openat resumed>) = 3 [pid 5419] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5419] ioctl(4, LOOP_CLR_FD [pid 5060] <... rmdir resumed>) = 0 [pid 5419] <... ioctl resumed>) = 0 [pid 5419] close(4) = 0 [pid 5419] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5419] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... write resumed>) = 524288 [pid 5418] <... futex resumed>) = 0 [pid 5060] mkdir("./30", 0777 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5418] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5419] <... futex resumed>) = 0 [pid 5418] <... futex resumed>) = 1 [pid 5419] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5057] getdents64(3, [pid 5419] <... mknod resumed>) = 0 [pid 5418] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... mkdir resumed>) = 0 [pid 5059] mkdir("./29", 0777 [pid 5419] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5419] <... futex resumed>) = 1 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5418] <... futex resumed>) = 0 [pid 5419] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5418] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] newfstatat(4, "", [pid 5057] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5418] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5419] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5418] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] getdents64(4, [pid 5060] close(3 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... close resumed>) = 0 [pid 5059] close(3 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] close(4 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5422 attached [pid 5422] set_robust_list(0x555555d616a0, 24 [pid 5419] <... open resumed>) = 4 [pid 5058] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5422] <... set_robust_list resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5422 [pid 5058] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5421] munmap(0x7f92368d1000, 138412032 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5422] chdir("./29" [pid 5421] <... munmap resumed>) = 0 [pid 5419] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] unlink("./28/binderfs"./strace-static-x86_64: Process 5423 attached [pid 5422] <... chdir resumed>) = 0 [pid 5421] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5419] <... futex resumed>) = 1 [pid 5418] <... futex resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5418] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5418] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5418] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] close(3) = 0 [pid 5058] rmdir("./28" [pid 5423] set_robust_list(0x555555d616a0, 24 [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5421] <... openat resumed>) = 4 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5423 [pid 5058] <... rmdir resumed>) = 0 [pid 5422] <... prctl resumed>) = 0 [pid 5421] ioctl(4, LOOP_SET_FD, 3 [pid 5419] sync( [pid 5058] mkdir("./29", 0777) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5057] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5057] newfstatat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5423] <... set_robust_list resumed>) = 0 [pid 5422] setpgid(0, 0 [pid 5058] close(3 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5423] chdir("./30" [pid 5422] <... setpgid resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] umount2("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5423] <... chdir resumed>) = 0 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] write(3, "1000", 4 [pid 5421] <... ioctl resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5423] <... prctl resumed>) = 0 [pid 5422] <... write resumed>) = 4 [pid 5421] close(3 [pid 5057] <... openat resumed>) = 4 [pid 5423] setpgid(0, 0 [pid 5422] close(3 [pid 5421] <... close resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5424 [pid 5057] newfstatat(4, "", ./strace-static-x86_64: Process 5424 attached [pid 5423] <... setpgid resumed>) = 0 [pid 5422] <... close resumed>) = 0 [pid 5421] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5419] <... sync resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5424] set_robust_list(0x555555d616a0, 24 [pid 5422] symlink("/dev/binderfs", "./binderfs" [pid 5421] <... mkdir resumed>) = 0 [pid 5419] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(4, [pid 5424] <... set_robust_list resumed>) = 0 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5422] <... symlink resumed>) = 0 [pid 5421] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5419] <... futex resumed>) = 1 [pid 5418] <... futex resumed>) = 0 [pid 5424] chdir("./29" [pid 5422] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5418] exit_group(0 [pid 5424] <... chdir resumed>) = 0 [pid 5423] <... openat resumed>) = 3 [pid 5422] <... futex resumed>) = 0 [pid 5419] <... futex resumed>) = ? [pid 5418] <... exit_group resumed>) = ? [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5419] +++ exited with 0 +++ [pid 5418] +++ exited with 0 +++ [pid 5424] <... prctl resumed>) = 0 [pid 5423] write(3, "1000", 4 [pid 5422] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] getdents64(4, [pid 5424] setpgid(0, 0 [pid 5423] <... write resumed>) = 4 [pid 5422] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5421] <... mount resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5424] <... setpgid resumed>) = 0 [pid 5423] close(3 [pid 5422] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5421] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] close(4 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5421] <... openat resumed>) = 3 [pid 5057] <... close resumed>) = 0 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5423] <... close resumed>) = 0 [pid 5422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5421] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5423] symlink("/dev/binderfs", "./binderfs" [pid 5422] <... mmap resumed>) = 0x7f923ecd1000 [pid 5424] <... openat resumed>) = 3 [pid 5423] <... symlink resumed>) = 0 [pid 5422] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5421] <... chdir resumed>) = 0 [pid 5057] rmdir("./28/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5424] write(3, "1000", 4 [pid 5423] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5422] <... mprotect resumed>) = 0 [pid 5421] ioctl(4, LOOP_CLR_FD [pid 5057] <... rmdir resumed>) = 0 [pid 5055] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5423] <... futex resumed>) = 0 [pid 5421] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5424] <... write resumed>) = 4 [pid 5423] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5422] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5421] close(4 [pid 5057] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5424] close(3 [pid 5423] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5422] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5421] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5424] <... close resumed>) = 0 [pid 5422] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5423] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5425 attached [pid 5424] symlink("/dev/binderfs", "./binderfs" [pid 5423] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5421] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(3, "", [pid 5425] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5424] <... symlink resumed>) = 0 [pid 5423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5422] <... clone3 resumed> => {parent_tid=[5425]}, 88) = 5425 [pid 5421] <... futex resumed>) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5057] unlink("./28/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 70.304882][ T5421] loop1: detected capacity change from 0 to 1024 [pid 5425] <... rseq resumed>) = 0 [pid 5424] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5423] <... mmap resumed>) = 0x7f923ecd1000 [pid 5422] rt_sigprocmask(SIG_SETMASK, [], [pid 5421] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5420] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... unlink resumed>) = 0 [pid 5055] getdents64(3, [pid 5425] set_robust_list(0x7f923ecf19a0, 24 [pid 5424] <... futex resumed>) = 0 [pid 5425] <... set_robust_list resumed>) = 0 [pid 5424] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] getdents64(3, [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5425] rt_sigprocmask(SIG_SETMASK, [], [pid 5424] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5423] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5422] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5420] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5425] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5424] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5423] <... mprotect resumed>) = 0 [pid 5422] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5421] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5420] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5425] memfd_create("syzkaller", 0 [pid 5424] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5423] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] close(3 [pid 5424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... close resumed>) = 0 [pid 5424] <... mmap resumed>) = 0x7f923ecd1000 [pid 5423] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5425] <... memfd_create resumed>) = 3 [pid 5057] rmdir("./28" [pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5424] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5423] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5422] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5426 attached [pid 5425] <... mmap resumed>) = 0x7f92368d1000 [pid 5424] <... mprotect resumed>) = 0 [pid 5422] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... rmdir resumed>) = 0 [pid 5424] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5423] <... clone3 resumed> => {parent_tid=[5426]}, 88) = 5426 [pid 5424] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5423] rt_sigprocmask(SIG_SETMASK, [], [pid 5424] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] mkdir("./29", 0777 [pid 5426] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5423] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5421] <... mknod resumed>) = 0 [pid 5426] <... rseq resumed>) = 0 [pid 5423] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] set_robust_list(0x7f923ecf19a0, 24 [pid 5423] <... futex resumed>) = 0 [pid 5421] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... mkdir resumed>) = 0 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5421] <... futex resumed>) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5423] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5426] rt_sigprocmask(SIG_SETMASK, [], [pid 5420] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5420] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5427 attached [pid 5426] memfd_create("syzkaller", 0 [pid 5425] <... write resumed>) = 524288 [pid 5424] <... clone3 resumed> => {parent_tid=[5427]}, 88) = 5427 [pid 5421] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5420] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5426] <... memfd_create resumed>) = 3 [pid 5425] munmap(0x7f92368d1000, 138412032 [pid 5057] <... openat resumed>) = 3 [pid 5426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5426] <... mmap resumed>) = 0x7f92368d1000 [pid 5424] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5427] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5425] <... munmap resumed>) = 0 [pid 5424] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] close(3 [pid 5055] <... umount2 resumed>) = 0 [pid 5427] <... rseq resumed>) = 0 [pid 5426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5425] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5421] <... open resumed>) = 4 [pid 5427] set_robust_list(0x7f923ecf19a0, 24 [pid 5424] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5427] <... set_robust_list resumed>) = 0 [pid 5424] <... futex resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5427] rt_sigprocmask(SIG_SETMASK, [], [pid 5424] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5428 attached [pid 5427] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5425] <... openat resumed>) = 4 [pid 5421] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] set_robust_list(0x555555d616a0, 24 [pid 5425] ioctl(4, LOOP_SET_FD, 3 [pid 5421] <... futex resumed>) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5428] <... set_robust_list resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] chdir("./29" [pid 5427] memfd_create("syzkaller", 0 [pid 5420] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5427] <... memfd_create resumed>) = 3 [pid 5427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5420] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5428] <... chdir resumed>) = 0 [pid 5421] sync( [pid 5420] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5427] <... mmap resumed>) = 0x7f92368d1000 [pid 5055] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] <... prctl resumed>) = 0 [pid 5428] setpgid(0, 0 [pid 5427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5425] <... ioctl resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5428 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] <... setpgid resumed>) = 0 [pid 5425] close(3 [pid 5055] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5428] <... openat resumed>) = 3 [pid 5425] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] newfstatat(4, "", [pid 5426] <... write resumed>) = 524288 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5428] write(3, "1000", 4 [pid 5426] munmap(0x7f92368d1000, 138412032 [pid 5055] getdents64(4, [pid 5428] <... write resumed>) = 4 [pid 5426] <... munmap resumed>) = 0 [pid 5425] <... mkdir resumed>) = 0 [pid 5428] close(3 [pid 5426] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5425] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5428] <... close resumed>) = 0 [pid 5426] <... openat resumed>) = 4 [pid 5421] <... sync resumed>) = 0 [pid 5055] getdents64(4, [pid 5428] symlink("/dev/binderfs", "./binderfs" [pid 5421] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5428] <... symlink resumed>) = 0 [pid 5421] <... futex resumed>) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5055] close(4 [pid 5420] exit_group(0) = ? [pid 5055] <... close resumed>) = 0 [pid 5426] ioctl(4, LOOP_SET_FD, 3 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... write resumed>) = 524288 [pid 5425] <... mount resumed>) = 0 [pid 5055] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5428] <... futex resumed>) = 0 [pid 5427] munmap(0x7f92368d1000, 138412032 [pid 5425] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... rmdir resumed>) = 0 [pid 5428] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5427] <... munmap resumed>) = 0 [pid 5425] <... openat resumed>) = 3 [pid 5421] +++ exited with 0 +++ [pid 5420] +++ exited with 0 +++ [pid 5055] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5425] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5428] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5425] <... chdir resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5427] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5425] ioctl(4, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5427] <... openat resumed>) = 4 [pid 5425] <... ioctl resumed>) = 0 [pid 5055] unlink("./29/binderfs" [pid 5428] <... mmap resumed>) = 0x7f923ecd1000 [pid 5427] ioctl(4, LOOP_SET_FD, 3 [pid 5425] close(4 [pid 5055] <... unlink resumed>) = 0 [pid 5428] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5426] <... ioctl resumed>) = 0 [pid 5425] <... close resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] close(3) = 0 [pid 5426] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5428] <... mprotect resumed>) = 0 [pid 5425] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5426] <... mkdir resumed>) = 0 [pid 5428] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5427] <... ioctl resumed>) = 0 [pid 5425] <... futex resumed>) = 1 [pid 5422] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5428] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5422] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5428] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5422] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5429 attached [pid 5427] close(3 [pid 5426] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5425] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5422] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... close resumed>) = 0 [pid 5429] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5428] <... clone3 resumed> => {parent_tid=[5429]}, 88) = 5429 [pid 5427] <... close resumed>) = 0 [pid 5055] rmdir("./29" [pid 5429] <... rseq resumed>) = 0 [pid 5428] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] set_robust_list(0x7f923ecf19a0, 24 [pid 5428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5427] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... rmdir resumed>) = 0 [pid 5429] <... set_robust_list resumed>) = 0 [pid 5428] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... mkdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5429] rt_sigprocmask(SIG_SETMASK, [], [pid 5428] <... futex resumed>) = 0 [pid 5427] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5425] <... mknod resumed>) = 0 [pid 5056] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./30", 0777 [pid 5429] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 70.424347][ T5425] loop4: detected capacity change from 0 to 1024 [ 70.457038][ T5426] loop5: detected capacity change from 0 to 1024 [ 70.467461][ T5427] loop3: detected capacity change from 0 to 1024 [pid 5425] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] memfd_create("syzkaller", 0 [pid 5425] <... futex resumed>) = 1 [pid 5422] <... futex resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5429] <... memfd_create resumed>) = 3 [pid 5425] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5422] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5426] <... mount resumed>) = 0 [pid 5422] <... futex resumed>) = 0 [pid 5429] <... mmap resumed>) = 0x7f92368d1000 [pid 5426] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5422] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... openat resumed>) = 4 [pid 5055] <... openat resumed>) = 3 [pid 5426] <... openat resumed>) = 3 [pid 5426] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5425] <... open resumed>) = 4 [pid 5426] <... chdir resumed>) = 0 [pid 5426] ioctl(4, LOOP_CLR_FD [pid 5056] newfstatat(4, "", [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5426] <... ioctl resumed>) = 0 [pid 5425] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] close(4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5427] <... mount resumed>) = 0 [pid 5426] <... close resumed>) = 0 [pid 5425] <... futex resumed>) = 1 [pid 5422] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] close(3 [pid 5425] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5422] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... close resumed>) = 0 [pid 5422] <... futex resumed>) = 0 [pid 5056] getdents64(4, [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5422] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5427] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5426] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] sync( [pid 5427] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5430 attached [pid 5427] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5426] <... futex resumed>) = 1 [pid 5423] <... futex resumed>) = 0 [pid 5056] close(4 [pid 5430] set_robust_list(0x555555d616a0, 24 [pid 5427] <... chdir resumed>) = 0 [pid 5426] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5423] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] ioctl(4, LOOP_CLR_FD [pid 5426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5423] <... futex resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5426] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5423] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5427] <... ioctl resumed>) = 0 [pid 5427] close(4 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5430 [pid 5056] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] <... set_robust_list resumed>) = 0 [pid 5427] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5430] chdir("./30" [pid 5427] <... futex resumed>) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5427] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5424] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] unlink("./29/binderfs" [pid 5430] <... chdir resumed>) = 0 [pid 5429] <... write resumed>) = 524288 [pid 5427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5426] <... mknod resumed>) = 0 [pid 5424] <... futex resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] munmap(0x7f92368d1000, 138412032 [pid 5427] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5426] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5424] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, [pid 5430] <... prctl resumed>) = 0 [pid 5429] <... munmap resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5430] setpgid(0, 0 [pid 5429] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... close resumed>) = 0 [pid 5430] <... setpgid resumed>) = 0 [pid 5429] <... openat resumed>) = 4 [pid 5426] <... futex resumed>) = 1 [pid 5423] <... futex resumed>) = 0 [pid 5056] rmdir("./29" [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5429] ioctl(4, LOOP_SET_FD, 3 [pid 5426] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5423] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5430] <... openat resumed>) = 3 [pid 5427] <... mknod resumed>) = 0 [pid 5423] <... futex resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5423] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5430] write(3, "1000", 4 [pid 5426] <... open resumed>) = 4 [pid 5430] <... write resumed>) = 4 [pid 5430] close(3 [pid 5056] mkdir("./30", 0777 [pid 5430] <... close resumed>) = 0 [pid 5427] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5430] symlink("/dev/binderfs", "./binderfs" [pid 5427] <... futex resumed>) = 1 [pid 5430] <... symlink resumed>) = 0 [pid 5427] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5426] <... futex resumed>) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5423] <... futex resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5430] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5426] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5424] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5423] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5430] <... futex resumed>) = 0 [pid 5427] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] <... futex resumed>) = 0 [pid 5423] <... futex resumed>) = 0 [pid 5430] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5426] sync( [pid 5424] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5423] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5425] <... sync resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5425] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5422] <... futex resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5425] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5422] exit_group(0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5425] <... futex resumed>) = ? [pid 5422] <... exit_group resumed>) = ? [pid 5056] close(3 [pid 5430] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5429] <... ioctl resumed>) = 0 [pid 5425] +++ exited with 0 +++ [pid 5422] +++ exited with 0 +++ [pid 5056] <... close resumed>) = 0 [pid 5430] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5429] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5431 attached [pid 5430] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5429] <... close resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5431] set_robust_list(0x555555d616a0, 24 [pid 5429] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5431 [pid 5431] <... set_robust_list resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5430] <... mmap resumed>) = 0x7f923ecd1000 [pid 5431] chdir("./30" [pid 5430] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5427] <... open resumed>) = 4 [pid 5059] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5431] <... chdir resumed>) = 0 [pid 5429] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] newfstatat(3, "", [pid 5431] <... prctl resumed>) = 0 [pid 5430] <... mprotect resumed>) = 0 [pid 5427] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5431] setpgid(0, 0 [pid 5059] getdents64(3, [pid 5431] <... setpgid resumed>) = 0 [pid 5430] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5427] <... futex resumed>) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5427] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5424] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... openat resumed>) = 3 [pid 5430] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] <... futex resumed>) = 0 [pid 5431] write(3, "1000", 4) = 4 [pid 5431] close(3) = 0 [pid 5431] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5431] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5430] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5429] <... mount resumed>) = 0 [ 70.551864][ T5429] loop2: detected capacity change from 0 to 1024 [pid 5427] sync( [pid 5424] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5426] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5432 attached [pid 5431] <... futex resumed>) = 0 [pid 5429] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5426] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5426] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5423] <... futex resumed>) = 0 [pid 5430] <... clone3 resumed> => {parent_tid=[5432]}, 88) = 5432 [pid 5432] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5430] rt_sigprocmask(SIG_SETMASK, [], [pid 5432] <... rseq resumed>) = 0 [pid 5430] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5432] set_robust_list(0x7f923ecf19a0, 24 [pid 5430] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5432] <... set_robust_list resumed>) = 0 [pid 5430] <... futex resumed>) = 0 [pid 5432] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5430] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5423] exit_group(0 [pid 5432] memfd_create("syzkaller", 0 [pid 5429] <... openat resumed>) = 3 [pid 5426] <... futex resumed>) = ? [pid 5423] <... exit_group resumed>) = ? [pid 5431] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5429] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5426] +++ exited with 0 +++ [pid 5423] +++ exited with 0 +++ [pid 5429] <... chdir resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5431] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5429] ioctl(4, LOOP_CLR_FD [pid 5432] <... memfd_create resumed>) = 3 [pid 5431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5429] <... ioctl resumed>) = 0 [pid 5432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5429] close(4 [pid 5060] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5432] <... mmap resumed>) = 0x7f92368d1000 [pid 5429] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5429] <... futex resumed>) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5431] <... mmap resumed>) = 0x7f923ecd1000 [pid 5429] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(3, "", [pid 5431] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5428] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5431] <... mprotect resumed>) = 0 [pid 5429] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(3, [pid 5432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5431] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5429] <... mknod resumed>) = 0 [pid 5427] <... sync resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5427] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5431] <... clone3 resumed> => {parent_tid=[5433]}, 88) = 5433 [pid 5427] <... futex resumed>) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5424] exit_group(0) = ? ./strace-static-x86_64: Process 5433 attached [pid 5431] rt_sigprocmask(SIG_SETMASK, [], [pid 5429] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5429] <... futex resumed>) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5433] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5431] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5428] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] <... rseq resumed>) = 0 [pid 5432] <... write resumed>) = 524288 [pid 5431] <... futex resumed>) = 0 [pid 5429] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5428] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5433] set_robust_list(0x7f923ecf19a0, 24 [pid 5427] +++ exited with 0 +++ [pid 5424] +++ exited with 0 +++ [pid 5059] newfstatat(4, "", [pid 5433] <... set_robust_list resumed>) = 0 [pid 5433] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5433] memfd_create("syzkaller", 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5433] <... memfd_create resumed>) = 3 [pid 5433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5431] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5433] <... mmap resumed>) = 0x7f92368d1000 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = 0 [pid 5059] getdents64(4, [pid 5432] munmap(0x7f92368d1000, 138412032 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5432] <... munmap resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... openat resumed>) = 3 [pid 5432] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5060] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] getdents64(4, [pid 5058] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5432] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(3, [pid 5060] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] close(4 [pid 5060] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5059] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5429] <... open resumed>) = 4 [pid 5060] newfstatat(4, "", [pid 5059] <... rmdir resumed>) = 0 [pid 5432] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, [pid 5433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5429] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5428] <... futex resumed>) = 0 [pid 5428] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5429] <... futex resumed>) = 1 [pid 5433] <... write resumed>) = 524288 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] sync( [pid 5433] munmap(0x7f92368d1000, 138412032 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5058] <... umount2 resumed>) = 0 [pid 5060] close(4) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5433] <... munmap resumed>) = 0 [pid 5060] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] unlink("./29/binderfs" [pid 5433] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] <... openat resumed>) = 4 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(3, [pid 5058] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5433] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5433] <... ioctl resumed>) = 0 [pid 5432] <... ioctl resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] close(3 [pid 5432] close(3 [pid 5059] <... close resumed>) = 0 [pid 5060] unlink("./30/binderfs" [pid 5432] <... close resumed>) = 0 [pid 5059] rmdir("./29") = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5432] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] <... unlink resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5058] newfstatat(4, "", [pid 5432] <... mkdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4) = 0 [pid 5058] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(3, [pid 5059] mkdir("./30", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5428] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5429] <... sync resumed>) = 0 [pid 5428] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5060] close(3 [pid 5059] <... mkdir resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5432] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5429] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./30" [pid 5058] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5060] <... rmdir resumed>) = 0 [pid 5428] exit_group(0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5429] <... futex resumed>) = ? [pid 5428] <... exit_group resumed>) = ? [pid 5058] unlink("./29/binderfs" [pid 5433] close(3 [pid 5429] +++ exited with 0 +++ [pid 5428] +++ exited with 0 +++ [pid 5058] <... unlink resumed>) = 0 [pid 5433] <... close resumed>) = 0 [pid 5058] getdents64(3, [pid 5433] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] close(3 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5433] <... mkdir resumed>) = 0 [pid 5060] mkdir("./31", 0777 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5058] rmdir("./29" [pid 5433] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... rmdir resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5058] mkdir("./30", 0777 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5433] <... mount resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... mkdir resumed>) = 0 [pid 5057] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5433] <... openat resumed>) = 3 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] close(3 [pid 5057] <... openat resumed>) = 3 [ 70.668117][ T5432] loop0: detected capacity change from 0 to 1024 [ 70.706202][ T5433] loop1: detected capacity change from 0 to 1024 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5433] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5060] close(3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5433] ioctl(4, LOOP_CLR_FD [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] getdents64(3, [pid 5433] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5433] close(4 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5433] <... close resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5433] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5434 attached [pid 5433] <... futex resumed>) = 1 [pid 5431] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5057] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5433] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5431] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5435 attached [pid 5434] set_robust_list(0x555555d616a0, 24 [pid 5432] <... mount resumed>) = 0 [pid 5431] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5434 [pid 5434] <... set_robust_list resumed>) = 0 [pid 5432] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5431] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5436 attached [pid 5435] set_robust_list(0x555555d616a0, 24 [pid 5434] chdir("./30" [pid 5433] <... mknod resumed>) = 0 [pid 5432] <... openat resumed>) = 3 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5435 [pid 5436] set_robust_list(0x555555d616a0, 24 [pid 5434] <... chdir resumed>) = 0 [pid 5433] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] <... set_robust_list resumed>) = 0 [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5433] <... futex resumed>) = 1 [pid 5431] <... futex resumed>) = 0 [pid 5436] chdir("./31" [pid 5435] <... set_robust_list resumed>) = 0 [pid 5434] <... prctl resumed>) = 0 [pid 5432] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5431] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5436 [pid 5436] <... chdir resumed>) = 0 [pid 5434] setpgid(0, 0 [pid 5433] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5432] <... chdir resumed>) = 0 [pid 5431] <... futex resumed>) = 0 [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5435] chdir("./30" [pid 5434] <... setpgid resumed>) = 0 [pid 5433] <... open resumed>) = 4 [pid 5432] ioctl(4, LOOP_CLR_FD [pid 5431] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5436] <... prctl resumed>) = 0 [pid 5433] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5436] setpgid(0, 0 [pid 5433] <... futex resumed>) = 0 [pid 5432] <... ioctl resumed>) = 0 [pid 5431] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] <... setpgid resumed>) = 0 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5433] sync( [pid 5432] close(4 [pid 5431] <... futex resumed>) = 0 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] <... chdir resumed>) = 0 [pid 5434] <... openat resumed>) = 3 [pid 5432] <... close resumed>) = 0 [pid 5431] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5436] <... openat resumed>) = 3 [pid 5436] write(3, "1000", 4 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] write(3, "1000", 4 [pid 5432] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] <... write resumed>) = 4 [pid 5435] <... prctl resumed>) = 0 [pid 5434] <... write resumed>) = 4 [pid 5432] <... futex resumed>) = 1 [pid 5430] <... futex resumed>) = 0 [pid 5436] close(3 [pid 5435] setpgid(0, 0 [pid 5434] close(3 [pid 5432] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5430] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] <... close resumed>) = 0 [pid 5435] <... setpgid resumed>) = 0 [pid 5434] <... close resumed>) = 0 [pid 5436] symlink("/dev/binderfs", "./binderfs" [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5434] symlink("/dev/binderfs", "./binderfs" [pid 5430] <... futex resumed>) = 0 [pid 5436] <... symlink resumed>) = 0 [pid 5433] <... sync resumed>) = 0 [pid 5435] <... openat resumed>) = 3 [pid 5433] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... symlink resumed>) = 0 [pid 5433] <... futex resumed>) = 1 [pid 5431] <... futex resumed>) = 0 [pid 5436] <... futex resumed>) = 0 [pid 5435] write(3, "1000", 4 [pid 5433] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5431] exit_group(0 [pid 5430] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5436] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5435] <... write resumed>) = 4 [pid 5434] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5433] <... futex resumed>) = ? [pid 5431] <... exit_group resumed>) = ? [pid 5436] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5435] close(3 [pid 5434] <... futex resumed>) = 0 [pid 5433] +++ exited with 0 +++ [pid 5431] +++ exited with 0 +++ [pid 5057] <... umount2 resumed>) = 0 [pid 5436] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5436] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5435] <... close resumed>) = 0 [pid 5434] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5435] symlink("/dev/binderfs", "./binderfs" [pid 5436] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5435] <... symlink resumed>) = 0 [pid 5436] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5056] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5436] <... mprotect resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5056] newfstatat(3, "", [pid 5436] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5434] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5434] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] getdents64(3, [pid 5436] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5434] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5436] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5432] <... mknod resumed>) = 0 [pid 5057] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5437 attached [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... mmap resumed>) = 0x7f923ecd1000 [pid 5432] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5435] <... futex resumed>) = 0 [pid 5434] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5432] <... futex resumed>) = 1 [pid 5430] <... futex resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5437] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5436] <... clone3 resumed> => {parent_tid=[5437]}, 88) = 5437 [pid 5435] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5434] <... mprotect resumed>) = 0 [pid 5432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5430] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5437] <... rseq resumed>) = 0 [pid 5436] rt_sigprocmask(SIG_SETMASK, [], [pid 5435] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5434] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5430] <... futex resumed>) = 0 [pid 5437] set_robust_list(0x7f923ecf19a0, 24 [pid 5436] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5432] <... open resumed>) = 4 [pid 5057] umount2("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] <... set_robust_list resumed>) = 0 [pid 5436] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5430] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5432] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] openat(AT_FDCWD, "./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5434] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5432] <... futex resumed>) = 1 [pid 5430] <... futex resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5437] rt_sigprocmask(SIG_SETMASK, [], [pid 5436] <... futex resumed>) = 0 [pid 5435] <... mmap resumed>) = 0x7f923ecd1000 [pid 5434] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5430] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5436] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5432] sync(./strace-static-x86_64: Process 5438 attached [pid 5437] memfd_create("syzkaller", 0 [pid 5435] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5430] <... futex resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = 0 [pid 5438] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5437] <... memfd_create resumed>) = 3 [pid 5435] <... mprotect resumed>) = 0 [pid 5434] <... clone3 resumed> => {parent_tid=[5438]}, 88) = 5438 [pid 5430] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5438] <... rseq resumed>) = 0 [pid 5437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5435] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5434] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] set_robust_list(0x7f923ecf19a0, 24 [pid 5437] <... mmap resumed>) = 0x7f92368d1000 [pid 5435] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5434] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] getdents64(4, [pid 5438] <... set_robust_list resumed>) = 0 [pid 5435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5434] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] rt_sigprocmask(SIG_SETMASK, [], [pid 5434] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5439 attached [pid 5438] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5435] <... clone3 resumed> => {parent_tid=[5439]}, 88) = 5439 [pid 5434] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5432] <... sync resumed>) = 0 [pid 5057] getdents64(4, [pid 5439] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5438] memfd_create("syzkaller", 0 [pid 5435] rt_sigprocmask(SIG_SETMASK, [], [pid 5432] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5439] <... rseq resumed>) = 0 [pid 5438] <... memfd_create resumed>) = 3 [pid 5437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5432] <... futex resumed>) = 1 [pid 5430] <... futex resumed>) = 0 [pid 5056] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5439] set_robust_list(0x7f923ecf19a0, 24 [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5435] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5432] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5430] exit_group(0 [pid 5057] close(4 [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] <... mmap resumed>) = 0x7f92368d1000 [pid 5435] <... futex resumed>) = 0 [pid 5432] <... futex resumed>) = ? [pid 5430] <... exit_group resumed>) = ? [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... close resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] rmdir("./29/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... openat resumed>) = 4 [pid 5056] newfstatat(4, "", [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5057] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5439] memfd_create("syzkaller", 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5439] <... memfd_create resumed>) = 3 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5437] <... write resumed>) = 524288 [pid 5438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5432] +++ exited with 0 +++ [pid 5430] +++ exited with 0 +++ [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5439] <... mmap resumed>) = 0x7f92368d1000 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5430, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5057] unlink("./29/binderfs" [pid 5056] getdents64(4, [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(3, [pid 5056] close(4 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5057] close(3 [pid 5056] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5057] rmdir("./29" [pid 5056] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5438] <... write resumed>) = 524288 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5055] <... restart_syscall resumed>) = 0 [pid 5437] munmap(0x7f92368d1000, 138412032 [pid 5057] mkdir("./30", 0777 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] unlink("./30/binderfs" [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... unlink resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(3 [pid 5057] close(3 [pid 5056] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] rmdir("./30") = 0 [pid 5439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] mkdir("./31", 0777./strace-static-x86_64: Process 5440 attached [pid 5437] <... munmap resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5437] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5440] set_robust_list(0x555555d616a0, 24 [pid 5437] <... openat resumed>) = 4 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5440 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] <... set_robust_list resumed>) = 0 [pid 5439] <... write resumed>) = 524288 [pid 5438] munmap(0x7f92368d1000, 138412032 [pid 5437] ioctl(4, LOOP_SET_FD, 3 [pid 5055] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5440] chdir("./30" [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5056] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5056] close(3) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5440] <... chdir resumed>) = 0 [pid 5439] munmap(0x7f92368d1000, 138412032 [pid 5438] <... munmap resumed>) = 0 [pid 5055] newfstatat(3, "", ./strace-static-x86_64: Process 5441 attached [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] <... munmap resumed>) = 0 [pid 5438] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5441] set_robust_list(0x555555d616a0, 24 [pid 5440] <... prctl resumed>) = 0 [pid 5439] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5438] <... openat resumed>) = 4 [pid 5055] getdents64(3, [pid 5441] <... set_robust_list resumed>) = 0 [pid 5440] setpgid(0, 0 [pid 5439] <... openat resumed>) = 4 [pid 5438] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5441 [pid 5441] chdir("./31" [pid 5440] <... setpgid resumed>) = 0 [pid 5439] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5441] <... chdir resumed>) = 0 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5441] setpgid(0, 0) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5441] write(3, "1000", 4 [pid 5438] <... ioctl resumed>) = 0 [pid 5055] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5441] <... write resumed>) = 4 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5441] close(3) = 0 [pid 5441] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5441] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] <... openat resumed>) = 3 [pid 5439] <... ioctl resumed>) = 0 [pid 5438] close(3 [pid 5437] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5440] write(3, "1000", 4 [pid 5439] close(3 [pid 5438] <... close resumed>) = 0 [pid 5055] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5440] <... write resumed>) = 4 [pid 5439] <... close resumed>) = 0 [pid 5438] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5440] close(3 [pid 5439] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5440] <... close resumed>) = 0 [pid 5441] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5440] symlink("/dev/binderfs", "./binderfs" [pid 5439] <... mkdir resumed>) = 0 [pid 5438] <... mkdir resumed>) = 0 [pid 5437] close(3 [pid 5055] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5441] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5437] <... close resumed>) = 0 [pid 5441] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5440] <... symlink resumed>) = 0 [pid 5439] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5438] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5437] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5441] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5440] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... mkdir resumed>) = 0 [pid 5441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5440] <... futex resumed>) = 0 [pid 5438] <... mount resumed>) = 0 [pid 5437] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5441] <... mmap resumed>) = 0x7f923ecd1000 [pid 5440] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5439] <... mount resumed>) = 0 [pid 5438] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5441] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5441] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5441] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5438] <... openat resumed>) = 3 [pid 5439] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5440] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5442 attached [pid 5438] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5439] <... openat resumed>) = 3 [pid 5442] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5440] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5439] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5438] <... chdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5442] <... rseq resumed>) = 0 [pid 5440] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5439] <... chdir resumed>) = 0 [pid 5438] ioctl(4, LOOP_CLR_FD [pid 5055] newfstatat(4, "", [pid 5442] set_robust_list(0x7f923ecf19a0, 24 [pid 5441] <... clone3 resumed> => {parent_tid=[5442]}, 88) = 5442 [pid 5440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5439] ioctl(4, LOOP_CLR_FD [pid 5438] <... ioctl resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5442] <... set_robust_list resumed>) = 0 [pid 5441] rt_sigprocmask(SIG_SETMASK, [], [pid 5440] <... mmap resumed>) = 0x7f923ecd1000 [pid 5439] <... ioctl resumed>) = 0 [pid 5438] close(4 [pid 5437] <... mount resumed>) = 0 [pid 5055] getdents64(4, [pid 5442] rt_sigprocmask(SIG_SETMASK, [], [pid 5441] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5440] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5439] close(4 [pid 5438] <... close resumed>) = 0 [ 70.884632][ T5437] loop5: detected capacity change from 0 to 1024 [ 70.903761][ T5438] loop4: detected capacity change from 0 to 1024 [ 70.910812][ T5439] loop3: detected capacity change from 0 to 1024 [pid 5437] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5442] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5441] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5440] <... mprotect resumed>) = 0 [pid 5439] <... close resumed>) = 0 [pid 5438] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5442] memfd_create("syzkaller", 0 [pid 5441] <... futex resumed>) = 0 [pid 5438] <... futex resumed>) = 1 [pid 5440] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5438] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] <... memfd_create resumed>) = 3 [pid 5440] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5439] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5440] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5439] <... futex resumed>) = 1 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5439] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5443 attached [pid 5442] <... mmap resumed>) = 0x7f92368d1000 [pid 5441] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5437] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5435] <... futex resumed>) = 0 [pid 5434] <... futex resumed>) = 0 [pid 5055] close(4 [pid 5443] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5437] <... chdir resumed>) = 0 [pid 5435] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] ioctl(4, LOOP_CLR_FD [pid 5434] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5443] <... rseq resumed>) = 0 [pid 5437] <... ioctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5443] set_robust_list(0x7f923ecf19a0, 24 [pid 5440] <... clone3 resumed> => {parent_tid=[5443]}, 88) = 5443 [pid 5438] <... futex resumed>) = 0 [pid 5437] close(4 [pid 5434] <... futex resumed>) = 1 [pid 5055] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5443] <... set_robust_list resumed>) = 0 [pid 5440] rt_sigprocmask(SIG_SETMASK, [], [pid 5439] <... futex resumed>) = 0 [pid 5438] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5437] <... close resumed>) = 0 [pid 5435] <... futex resumed>) = 1 [pid 5434] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5437] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... rmdir resumed>) = 0 [pid 5437] <... futex resumed>) = 1 [pid 5443] rt_sigprocmask(SIG_SETMASK, [], [pid 5439] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5437] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5436] <... futex resumed>) = 0 [pid 5438] <... mknod resumed>) = 0 [pid 5443] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5438] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5436] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5440] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5439] <... mknod resumed>) = 0 [pid 5438] <... futex resumed>) = 1 [pid 5437] <... futex resumed>) = 0 [pid 5436] <... futex resumed>) = 1 [pid 5434] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5442] <... write resumed>) = 524288 [pid 5440] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5439] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5438] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5436] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./30/binderfs") = 0 [pid 5055] getdents64(3, [pid 5437] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5434] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5443] <... futex resumed>) = 0 [pid 5440] <... futex resumed>) = 1 [pid 5439] <... futex resumed>) = 1 [pid 5055] <... close resumed>) = 0 [pid 5443] memfd_create("syzkaller", 0 [pid 5440] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5439] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5435] <... futex resumed>) = 0 [pid 5443] <... memfd_create resumed>) = 3 [pid 5439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5438] <... futex resumed>) = 0 [pid 5435] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... futex resumed>) = 1 [pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5435] <... futex resumed>) = 0 [pid 5434] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] rmdir("./30" [pid 5443] <... mmap resumed>) = 0x7f92368d1000 [pid 5439] <... open resumed>) = 4 [pid 5438] <... open resumed>) = 4 [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... rmdir resumed>) = 0 [pid 5443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5442] munmap(0x7f92368d1000, 138412032 [pid 5439] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5438] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... mknod resumed>) = 0 [pid 5055] mkdir("./31", 0777 [pid 5437] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5435] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5437] <... futex resumed>) = 1 [pid 5435] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5435] <... futex resumed>) = 0 [pid 5436] <... futex resumed>) = 0 [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5436] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... futex resumed>) = 0 [pid 5436] <... futex resumed>) = 1 [pid 5437] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5439] <... futex resumed>) = 1 [pid 5436] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5435] <... futex resumed>) = 0 [pid 5435] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=48000000} [pid 5442] <... munmap resumed>) = 0 [pid 5438] <... futex resumed>) = 1 [pid 5434] <... futex resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5434] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5439] sync( [pid 5438] sync( [pid 5434] <... futex resumed>) = 0 [pid 5442] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5434] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5442] <... openat resumed>) = 4 [pid 5442] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... openat resumed>) = 3 [pid 5442] <... ioctl resumed>) = 0 [pid 5437] <... open resumed>) = 4 [pid 5055] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5055] close(3) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5444 attached [pid 5444] set_robust_list(0x555555d616a0, 24 [pid 5443] <... write resumed>) = 524288 [pid 5437] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5444] <... set_robust_list resumed>) = 0 [pid 5437] <... futex resumed>) = 1 [pid 5436] <... futex resumed>) = 0 [pid 5436] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5444] chdir("./31" [pid 5437] sync( [pid 5436] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5444 [pid 5443] munmap(0x7f92368d1000, 138412032) = 0 [pid 5444] <... chdir resumed>) = 0 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5443] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5444] setpgid(0, 0 [pid 5443] ioctl(4, LOOP_SET_FD, 3 [pid 5444] <... setpgid resumed>) = 0 [pid 5442] close(3 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5442] <... close resumed>) = 0 [pid 5439] <... sync resumed>) = 0 [pid 5438] <... sync resumed>) = 0 [pid 5437] <... sync resumed>) = 0 [pid 5442] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5439] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5444] <... openat resumed>) = 3 [pid 5443] <... ioctl resumed>) = 0 [pid 5442] <... mkdir resumed>) = 0 [pid 5439] <... futex resumed>) = 1 [pid 5438] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5435] <... futex resumed>) = 0 [pid 5435] exit_group(0) = ? [pid 5444] write(3, "1000", 4 [pid 5437] <... futex resumed>) = 1 [pid 5436] <... futex resumed>) = 0 [pid 5437] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] <... write resumed>) = 4 [pid 5436] exit_group(0) = ? [pid 5444] close(3 [pid 5437] <... futex resumed>) = ? [pid 5437] +++ exited with 0 +++ [pid 5436] +++ exited with 0 +++ [pid 5444] <... close resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5436, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5439] +++ exited with 0 +++ [pid 5438] <... futex resumed>) = 1 [pid 5435] +++ exited with 0 +++ [pid 5434] <... futex resumed>) = 0 [pid 5444] symlink("/dev/binderfs", "./binderfs" [pid 5434] exit_group(0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5434] <... exit_group resumed>) = ? [pid 5060] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] <... symlink resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5442] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5444] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5438] +++ exited with 0 +++ [pid 5434] +++ exited with 0 +++ [pid 5060] <... openat resumed>) = 3 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5444] <... futex resumed>) = 0 [pid 5058] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] newfstatat(3, "", [pid 5059] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5444] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5443] close(3 [pid 5442] <... mount resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5444] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5443] <... close resumed>) = 0 [pid 5442] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... openat resumed>) = 3 [pid 5444] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5443] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5442] <... openat resumed>) = 3 [pid 5060] getdents64(3, [pid 5059] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", [pid 5444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5443] <... mkdir resumed>) = 0 [pid 5442] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(3, [pid 5444] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5442] <... chdir resumed>) = 0 [pid 5058] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5442] ioctl(4, LOOP_CLR_FD [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] newfstatat(3, "", [pid 5444] <... mprotect resumed>) = 0 [pid 5443] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5442] <... ioctl resumed>) = 0 [pid 5060] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5444] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5442] close(4 [pid 5059] getdents64(3, [pid 5442] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5444] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5442] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5443] <... mount resumed>) = 0 [pid 5442] <... futex resumed>) = 1 [pid 5441] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5443] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5442] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5441] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5445 attached [pid 5443] <... openat resumed>) = 3 [pid 5442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5441] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5445] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5444] <... clone3 resumed> => {parent_tid=[5445]}, 88) = 5445 [pid 5443] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5442] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5441] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... rseq resumed>) = 0 [pid 5444] rt_sigprocmask(SIG_SETMASK, [], [pid 5443] <... chdir resumed>) = 0 [pid 5444] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5445] set_robust_list(0x7f923ecf19a0, 24 [pid 5443] ioctl(4, LOOP_CLR_FD [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... set_robust_list resumed>) = 0 [pid 5443] <... ioctl resumed>) = 0 [pid 5445] rt_sigprocmask(SIG_SETMASK, [], [pid 5444] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5443] close(4 [pid 5058] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5444] <... futex resumed>) = 0 [pid 5443] <... close resumed>) = 0 [pid 5442] <... mknod resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5445] memfd_create("syzkaller", 0 [pid 5443] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] <... memfd_create resumed>) = 3 [pid 5443] <... futex resumed>) = 1 [pid 5440] <... futex resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5443] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5440] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5445] <... mmap resumed>) = 0x7f92368d1000 [pid 5443] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5442] <... futex resumed>) = 1 [pid 5441] <... futex resumed>) = 0 [pid 5440] <... futex resumed>) = 0 [pid 5058] getdents64(4, [pid 5444] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5443] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5442] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5441] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [ 71.026237][ T5442] loop1: detected capacity change from 0 to 1024 [ 71.054283][ T5443] loop2: detected capacity change from 0 to 1024 [pid 5440] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5441] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5441] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] getdents64(4, [pid 5442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5443] <... mknod resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5058] close(4) = 0 [pid 5442] <... open resumed>) = 4 [pid 5058] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5443] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5440] <... futex resumed>) = 0 [pid 5440] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5443] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... write resumed>) = 524288 [pid 5442] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./30/binderfs") = 0 [pid 5060] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5443] <... open resumed>) = 4 [pid 5442] <... futex resumed>) = 1 [pid 5441] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5441] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5058] getdents64(3, [pid 5442] sync( [pid 5441] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] close(3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./30") = 0 [pid 5443] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] mkdir("./31", 0777 [pid 5443] <... futex resumed>) = 1 [pid 5440] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... mkdir resumed>) = 0 [pid 5440] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5443] sync( [pid 5440] <... futex resumed>) = 0 [pid 5440] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... openat resumed>) = 4 [pid 5058] <... openat resumed>) = 3 [pid 5445] munmap(0x7f92368d1000, 138412032 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5445] <... munmap resumed>) = 0 [pid 5058] <... ioctl resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5058] close(3 [pid 5445] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] <... close resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5445] <... openat resumed>) = 4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] getdents64(4, [pid 5445] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5445] <... ioctl resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(4./strace-static-x86_64: Process 5446 attached ) = 0 [pid 5060] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5446] set_robust_list(0x555555d616a0, 24 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5446 [pid 5060] <... rmdir resumed>) = 0 [pid 5060] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... set_robust_list resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5059] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5446] chdir("./31" [pid 5445] close(3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5446] <... chdir resumed>) = 0 [pid 5443] <... sync resumed>) = 0 [pid 5442] <... sync resumed>) = 0 [pid 5060] unlink("./31/binderfs" [pid 5059] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5442] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... prctl resumed>) = 0 [pid 5443] <... futex resumed>) = 1 [pid 5442] <... futex resumed>) = 1 [pid 5441] <... futex resumed>) = 0 [pid 5440] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] setpgid(0, 0 [pid 5445] <... close resumed>) = 0 [pid 5443] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5441] exit_group(0 [pid 5440] exit_group(0 [pid 5059] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5446] <... setpgid resumed>) = 0 [pid 5445] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5443] <... futex resumed>) = ? [pid 5442] <... futex resumed>) = ? [pid 5441] <... exit_group resumed>) = ? [pid 5440] <... exit_group resumed>) = ? [pid 5060] getdents64(3, [pid 5059] <... openat resumed>) = 4 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] <... mkdir resumed>) = 0 [pid 5443] +++ exited with 0 +++ [pid 5442] +++ exited with 0 +++ [pid 5441] +++ exited with 0 +++ [pid 5440] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] newfstatat(4, "", [pid 5446] <... openat resumed>) = 3 [pid 5445] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5446] write(3, "1000", 4) = 4 [pid 5446] close(3 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5446] <... close resumed>) = 0 [pid 5446] symlink("/dev/binderfs", "./binderfs" [pid 5057] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... symlink resumed>) = 0 [pid 5060] close(3 [pid 5446] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] <... futex resumed>) = 0 [pid 5446] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] rmdir("./31" [pid 5057] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5446] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5446] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] getdents64(4, [pid 5446] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... openat resumed>) = 3 [pid 5446] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(3, "", [pid 5446] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... mprotect resumed>) = 0 [pid 5446] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5445] <... mount resumed>) = 0 [pid 5059] getdents64(4, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5445] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] mkdir("./32", 0777 [pid 5446] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5445] <... openat resumed>) = 3 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] close(4 [pid 5057] getdents64(3, [pid 5446] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5445] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5445] <... chdir resumed>) = 0 [pid 5445] ioctl(4, LOOP_CLR_FD [pid 5060] <... openat resumed>) = 3 [pid 5057] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... ioctl resumed>) = 0 [pid 5446] <... clone3 resumed> => {parent_tid=[5447]}, 88) = 5447 [pid 5445] close(4 [pid 5446] rt_sigprocmask(SIG_SETMASK, [], [pid 5445] <... close resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... close resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5446] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5445] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(3 [pid 5059] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 ./strace-static-x86_64: Process 5447 attached [pid 5446] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5444] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... rmdir resumed>) = 0 [pid 5447] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5446] <... futex resumed>) = 0 [pid 5059] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5447] <... rseq resumed>) = 0 [pid 5446] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5447] set_robust_list(0x7f923ecf19a0, 24 [pid 5444] <... futex resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./30/binderfs", [ 71.144897][ T5445] loop0: detected capacity change from 0 to 1024 [pid 5444] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5447] <... set_robust_list resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5448 attached [pid 5447] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] unlink("./30/binderfs" [pid 5448] set_robust_list(0x555555d616a0, 24 [pid 5447] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5448 [pid 5059] <... unlink resumed>) = 0 [pid 5447] memfd_create("syzkaller", 0 [pid 5059] getdents64(3, [pid 5447] <... memfd_create resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5059] close(3 [pid 5447] <... mmap resumed>) = 0x7f92368d1000 [pid 5059] <... close resumed>) = 0 [pid 5448] chdir("./32" [pid 5447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5445] <... mknod resumed>) = 0 [pid 5059] rmdir("./30" [pid 5448] <... chdir resumed>) = 0 [pid 5445] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5448] <... prctl resumed>) = 0 [pid 5445] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] setpgid(0, 0 [pid 5444] <... futex resumed>) = 0 [pid 5448] <... setpgid resumed>) = 0 [pid 5445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5444] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] newfstatat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5059] mkdir("./31", 0777) = 0 [pid 5056] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] umount2("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] <... openat resumed>) = 3 [pid 5056] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] write(3, "1000", 4 [pid 5445] <... open resumed>) = 4 [pid 5059] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5448] <... write resumed>) = 4 [pid 5057] <... openat resumed>) = 4 [pid 5448] close(3 [pid 5445] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] newfstatat(4, "", [pid 5448] <... close resumed>) = 0 [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5448] symlink("/dev/binderfs", "./binderfs" [pid 5444] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5448] <... symlink resumed>) = 0 [pid 5447] <... write resumed>) = 524288 [pid 5445] sync( [pid 5444] <... futex resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] getdents64(4, [pid 5056] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5444] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] close(3 [pid 5056] <... openat resumed>) = 4 [pid 5059] <... close resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5448] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(4 [pid 5056] getdents64(4, ./strace-static-x86_64: Process 5449 attached [pid 5448] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5449 [pid 5057] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5448] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] rmdir("./30/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] getdents64(4, [pid 5449] set_robust_list(0x555555d616a0, 24 [pid 5448] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] close(4 [pid 5449] chdir("./31" [pid 5447] munmap(0x7f92368d1000, 138412032 [pid 5056] <... close resumed>) = 0 [pid 5449] <... chdir resumed>) = 0 [pid 5056] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5447] <... munmap resumed>) = 0 [pid 5057] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5449] <... prctl resumed>) = 0 [pid 5448] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] setpgid(0, 0 [pid 5448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5447] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... setpgid resumed>) = 0 [pid 5448] <... mmap resumed>) = 0x7f923ecd1000 [pid 5447] <... openat resumed>) = 4 [pid 5057] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5056] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5448] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5449] <... openat resumed>) = 3 [pid 5448] <... mprotect resumed>) = 0 [pid 5447] ioctl(4, LOOP_SET_FD, 3 [pid 5057] unlink("./30/binderfs" [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./31/binderfs" [pid 5448] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5445] <... sync resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5445] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] write(3, "1000", 4 [pid 5448] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5449] <... write resumed>) = 4 [pid 5448] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5057] getdents64(3, [pid 5056] getdents64(3, [pid 5445] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] exit_group(0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5444] <... exit_group resumed>) = ? [pid 5057] close(3 [pid 5056] close(3 [pid 5445] <... futex resumed>) = ? [pid 5056] <... close resumed>) = 0 ./strace-static-x86_64: Process 5450 attached [pid 5449] close(3 [pid 5448] <... clone3 resumed> => {parent_tid=[5450]}, 88) = 5450 [pid 5445] +++ exited with 0 +++ [pid 5444] +++ exited with 0 +++ [pid 5057] <... close resumed>) = 0 [pid 5450] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5449] <... close resumed>) = 0 [pid 5056] rmdir("./31" [pid 5450] <... rseq resumed>) = 0 [pid 5449] symlink("/dev/binderfs", "./binderfs" [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5450] set_robust_list(0x7f923ecf19a0, 24 [pid 5449] <... symlink resumed>) = 0 [pid 5448] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] rmdir("./30" [pid 5056] <... rmdir resumed>) = 0 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5448] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5450] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] mkdir("./32", 0777 [pid 5450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5448] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] memfd_create("syzkaller", 0 [pid 5448] <... futex resumed>) = 0 [pid 5057] mkdir("./31", 0777 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5450] <... memfd_create resumed>) = 3 [pid 5449] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5448] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5449] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... openat resumed>) = 3 [pid 5450] <... mmap resumed>) = 0x7f92368d1000 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] newfstatat(3, "", [pid 5450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5449] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5449] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] getdents64(3, [pid 5449] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] close(3 [pid 5449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5056] <... close resumed>) = 0 [pid 5055] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] <... write resumed>) = 524288 [pid 5449] <... mmap resumed>) = 0x7f923ecd1000 [pid 5447] <... ioctl resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5449] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5447] close(3 [pid 5449] <... mprotect resumed>) = 0 [pid 5447] <... close resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5449] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5447] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5449] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5449] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5452 attached ./strace-static-x86_64: Process 5451 attached [pid 5447] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5057] close(3 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5451 [pid 5452] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5451] set_robust_list(0x555555d616a0, 24 [pid 5449] <... clone3 resumed> => {parent_tid=[5452]}, 88) = 5452 [pid 5057] <... close resumed>) = 0 [pid 5451] <... set_robust_list resumed>) = 0 [ 71.265494][ T5447] loop3: detected capacity change from 0 to 1024 [pid 5449] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5452] <... rseq resumed>) = 0 [pid 5451] chdir("./32" [pid 5449] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] set_robust_list(0x7f923ecf19a0, 24 [pid 5449] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5453 attached [pid 5452] <... set_robust_list resumed>) = 0 [pid 5451] <... chdir resumed>) = 0 [pid 5449] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5453] set_robust_list(0x555555d616a0, 24 [pid 5452] rt_sigprocmask(SIG_SETMASK, [], [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5453] <... set_robust_list resumed>) = 0 [pid 5452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5451] <... prctl resumed>) = 0 [pid 5453] chdir("./31" [pid 5452] memfd_create("syzkaller", 0 [pid 5450] munmap(0x7f92368d1000, 138412032 [pid 5453] <... chdir resumed>) = 0 [pid 5452] <... memfd_create resumed>) = 3 [pid 5451] setpgid(0, 0 [pid 5450] <... munmap resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5453 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5451] <... setpgid resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5452] <... mmap resumed>) = 0x7f92368d1000 [pid 5450] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5453] <... prctl resumed>) = 0 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5453] setpgid(0, 0) = 0 [pid 5451] <... openat resumed>) = 3 [pid 5450] <... openat resumed>) = 4 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] write(3, "1000", 4 [pid 5450] ioctl(4, LOOP_SET_FD, 3 [pid 5453] <... openat resumed>) = 3 [pid 5451] <... write resumed>) = 4 [pid 5450] <... ioctl resumed>) = 0 [pid 5452] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5447] <... mount resumed>) = 0 [pid 5451] close(3 [pid 5453] write(3, "1000", 4 [pid 5451] <... close resumed>) = 0 [pid 5451] symlink("/dev/binderfs", "./binderfs" [pid 5453] <... write resumed>) = 4 [pid 5453] close(3 [pid 5451] <... symlink resumed>) = 0 [pid 5447] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5453] <... close resumed>) = 0 [pid 5453] symlink("/dev/binderfs", "./binderfs" [pid 5447] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... symlink resumed>) = 0 [pid 5451] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5447] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5453] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5451] <... futex resumed>) = 0 [pid 5453] <... futex resumed>) = 0 [pid 5451] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5447] <... chdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5447] ioctl(4, LOOP_CLR_FD [pid 5055] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5451] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5453] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5451] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5447] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5451] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5447] close(4 [pid 5055] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5451] <... mmap resumed>) = 0x7f923ecd1000 [pid 5447] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5453] <... mmap resumed>) = 0x7f923ecd1000 [pid 5451] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5453] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5451] <... mprotect resumed>) = 0 [pid 5447] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(4, "", [pid 5453] <... mprotect resumed>) = 0 [pid 5452] <... write resumed>) = 524288 [pid 5451] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5450] close(3 [pid 5447] <... futex resumed>) = 1 [pid 5446] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5450] <... close resumed>) = 0 [pid 5447] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5446] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5454 attached [pid 5453] <... clone3 resumed> => {parent_tid=[5454]}, 88) = 5454 [pid 5451] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5450] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5446] <... futex resumed>) = 0 [pid 5454] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5453] rt_sigprocmask(SIG_SETMASK, [], [pid 5451] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5450] <... mkdir resumed>) = 0 [pid 5446] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] getdents64(4, ./strace-static-x86_64: Process 5455 attached [pid 5454] <... rseq resumed>) = 0 [pid 5453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5452] munmap(0x7f92368d1000, 138412032 [pid 5450] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5447] <... mknod resumed>) = 0 [pid 5455] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5454] set_robust_list(0x7f923ecf19a0, 24 [pid 5453] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] <... munmap resumed>) = 0 [pid 5451] <... clone3 resumed> => {parent_tid=[5455]}, 88) = 5455 [pid 5447] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5455] <... rseq resumed>) = 0 [pid 5454] <... set_robust_list resumed>) = 0 [pid 5453] <... futex resumed>) = 0 [pid 5452] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5451] rt_sigprocmask(SIG_SETMASK, [], [pid 5447] <... futex resumed>) = 1 [pid 5446] <... futex resumed>) = 0 [pid 5055] close(4 [pid 5455] set_robust_list(0x7f923ecf19a0, 24 [pid 5454] rt_sigprocmask(SIG_SETMASK, [], [pid 5453] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5452] <... openat resumed>) = 4 [pid 5451] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5455] <... set_robust_list resumed>) = 0 [pid 5454] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5452] ioctl(4, LOOP_SET_FD, 3 [pid 5451] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5447] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [ 71.335272][ T5450] loop5: detected capacity change from 0 to 1024 [pid 5446] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5455] rt_sigprocmask(SIG_SETMASK, [], [pid 5454] memfd_create("syzkaller", 0 [pid 5452] <... ioctl resumed>) = 0 [pid 5451] <... futex resumed>) = 0 [pid 5450] <... mount resumed>) = 0 [pid 5446] <... futex resumed>) = 0 [pid 5055] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5455] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5454] <... memfd_create resumed>) = 3 [pid 5447] <... open resumed>) = 4 [pid 5455] memfd_create("syzkaller", 0 [pid 5454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5451] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5447] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5454] <... mmap resumed>) = 0x7f92368d1000 [pid 5447] <... futex resumed>) = 0 [pid 5446] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5447] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... memfd_create resumed>) = 3 [pid 5447] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5446] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5447] sync( [pid 5446] <... futex resumed>) = 0 [pid 5455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5446] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5455] <... mmap resumed>) = 0x7f92368d1000 [pid 5450] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] unlink("./31/binderfs") = 0 [pid 5450] <... openat resumed>) = 3 [pid 5055] getdents64(3, [pid 5450] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3) = 0 [pid 5055] rmdir("./31" [pid 5450] <... chdir resumed>) = 0 [pid 5450] ioctl(4, LOOP_CLR_FD [pid 5055] <... rmdir resumed>) = 0 [pid 5055] mkdir("./32", 0777 [pid 5450] <... ioctl resumed>) = 0 [pid 5450] close(4 [pid 5055] <... mkdir resumed>) = 0 [pid 5452] close(3 [pid 5450] <... close resumed>) = 0 [pid 5452] <... close resumed>) = 0 [pid 5450] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5452] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5450] <... futex resumed>) = 1 [pid 5454] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5450] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5448] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5452] <... mkdir resumed>) = 0 [pid 5450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5448] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5450] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5448] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5452] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] close(3) = 0 [pid 5450] <... mknod resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5450] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5450] <... futex resumed>) = 1 [pid 5448] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5456 attached [pid 5452] <... mount resumed>) = 0 [pid 5450] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5448] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5448] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5452] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5456] set_robust_list(0x555555d616a0, 24 [pid 5452] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5456] <... set_robust_list resumed>) = 0 [pid 5452] <... chdir resumed>) = 0 [pid 5452] ioctl(4, LOOP_CLR_FD) = 0 [pid 5456] chdir("./32") = 0 [pid 5452] close(4 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] <... close resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5456 [pid 5456] <... prctl resumed>) = 0 [pid 5452] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] setpgid(0, 0 [pid 5452] <... futex resumed>) = 1 [pid 5450] <... open resumed>) = 4 [pid 5449] <... futex resumed>) = 0 [pid 5456] <... setpgid resumed>) = 0 [ 71.396001][ T5452] loop4: detected capacity change from 0 to 1024 [pid 5452] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5449] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5450] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] <... futex resumed>) = 0 [pid 5456] <... openat resumed>) = 3 [pid 5452] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5450] <... futex resumed>) = 1 [pid 5449] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5448] <... futex resumed>) = 0 [pid 5450] sync( [pid 5448] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] write(3, "1000", 4) = 4 [pid 5448] <... futex resumed>) = 0 [pid 5456] close(3 [pid 5448] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5456] <... close resumed>) = 0 [pid 5456] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5452] <... mknod resumed>) = 0 [pid 5447] <... sync resumed>) = 0 [pid 5456] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5447] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5456] <... futex resumed>) = 0 [pid 5454] <... write resumed>) = 524288 [pid 5447] <... futex resumed>) = 0 [pid 5446] exit_group(0 [pid 5456] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5452] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... exit_group resumed>) = ? [pid 5456] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5454] munmap(0x7f92368d1000, 138412032 [pid 5452] <... futex resumed>) = 1 [pid 5449] <... futex resumed>) = 0 [pid 5456] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5452] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5449] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5449] <... futex resumed>) = 0 [pid 5456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5452] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5449] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5456] <... mmap resumed>) = 0x7f923ecd1000 [pid 5447] +++ exited with 0 +++ [pid 5446] +++ exited with 0 +++ [pid 5456] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5454] <... munmap resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5456] <... mprotect resumed>) = 0 [pid 5456] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5452] <... open resumed>) = 4 [pid 5454] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5058] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5456] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5454] <... openat resumed>) = 4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5456] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5452] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5454] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5457 attached [pid 5452] <... futex resumed>) = 1 [pid 5449] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5457] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5452] sync( [pid 5449] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] <... clone3 resumed> => {parent_tid=[5457]}, 88) = 5457 [pid 5449] <... futex resumed>) = 0 [pid 5457] <... rseq resumed>) = 0 [pid 5456] rt_sigprocmask(SIG_SETMASK, [], [pid 5449] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5457] set_robust_list(0x7f923ecf19a0, 24 [pid 5456] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] newfstatat(3, "", [pid 5457] <... set_robust_list resumed>) = 0 [pid 5456] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5457] rt_sigprocmask(SIG_SETMASK, [], [pid 5456] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5457] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5456] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5457] memfd_create("syzkaller", 0 [pid 5455] <... write resumed>) = 524288 [pid 5058] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5457] <... memfd_create resumed>) = 3 [pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5455] munmap(0x7f92368d1000, 138412032 [pid 5454] <... ioctl resumed>) = 0 [pid 5455] <... munmap resumed>) = 0 [pid 5455] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5454] close(3 [pid 5455] <... openat resumed>) = 4 [pid 5454] <... close resumed>) = 0 [pid 5452] <... sync resumed>) = 0 [ 71.479666][ T5454] loop2: detected capacity change from 0 to 1024 [pid 5455] ioctl(4, LOOP_SET_FD, 3 [pid 5454] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5450] <... sync resumed>) = 0 [pid 5450] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5448] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5450] <... futex resumed>) = 0 [pid 5448] exit_group(0) = ? [pid 5450] +++ exited with 0 +++ [pid 5448] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5448, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5457] <... write resumed>) = 524288 [pid 5455] <... ioctl resumed>) = 0 [pid 5454] <... mkdir resumed>) = 0 [pid 5452] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] <... futex resumed>) = 1 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5454] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5449] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5455] close(3) = 0 [pid 5449] exit_group(0 [pid 5060] newfstatat(3, "", [pid 5058] <... umount2 resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5455] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5452] <... futex resumed>) = ? [pid 5449] <... exit_group resumed>) = ? [pid 5060] getdents64(3, [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... mkdir resumed>) = 0 [pid 5452] +++ exited with 0 +++ [pid 5449] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5455] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5457] munmap(0x7f92368d1000, 138412032 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] <... munmap resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... openat resumed>) = 4 [pid 5059] <... openat resumed>) = 3 [pid 5058] newfstatat(4, "", [pid 5059] newfstatat(3, "", [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5457] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5455] <... mount resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 71.523767][ T5455] loop1: detected capacity change from 0 to 1024 [pid 5058] getdents64(4, [pid 5457] <... openat resumed>) = 4 [pid 5455] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5454] <... mount resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5457] ioctl(4, LOOP_SET_FD, 3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] getdents64(4, [pid 5457] <... ioctl resumed>) = 0 [pid 5455] <... openat resumed>) = 3 [pid 5454] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] <... umount2 resumed>) = 0 [pid 5059] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5455] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5454] <... openat resumed>) = 3 [pid 5455] <... chdir resumed>) = 0 [pid 5454] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] close(4 [pid 5455] ioctl(4, LOOP_CLR_FD [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5454] <... chdir resumed>) = 0 [pid 5455] <... ioctl resumed>) = 0 [pid 5454] ioctl(4, LOOP_CLR_FD [pid 5060] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5455] close(4 [pid 5058] <... close resumed>) = 0 [pid 5455] <... close resumed>) = 0 [pid 5454] <... ioctl resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5058] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5454] close(4 [pid 5455] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5455] <... futex resumed>) = 1 [pid 5454] <... close resumed>) = 0 [pid 5451] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] unlink("./31/binderfs" [pid 5455] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5454] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5451] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5454] <... futex resumed>) = 1 [pid 5455] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5454] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5453] <... futex resumed>) = 0 [pid 5451] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5058] <... unlink resumed>) = 0 [pid 5455] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5453] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5451] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5457] close(3 [pid 5455] <... mknod resumed>) = 0 [pid 5454] <... futex resumed>) = 0 [pid 5453] <... futex resumed>) = 1 [pid 5060] newfstatat(4, "", [pid 5059] <... umount2 resumed>) = 0 [pid 5058] getdents64(3, [pid 5457] <... close resumed>) = 0 [pid 5455] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5454] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5453] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5457] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5455] <... futex resumed>) = 1 [pid 5451] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5457] <... mkdir resumed>) = 0 [pid 5451] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5457] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... close resumed>) = 0 [pid 5455] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5454] <... mknod resumed>) = 0 [pid 5451] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] rmdir("./31" [pid 5454] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5451] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, [pid 5059] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... rmdir resumed>) = 0 [pid 5454] <... futex resumed>) = 1 [pid 5453] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5454] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5453] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] mkdir("./32", 0777 [pid 5457] <... mount resumed>) = 0 [pid 5455] <... open resumed>) = 4 [pid 5454] <... open resumed>) = 4 [pid 5453] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... mkdir resumed>) = 0 [pid 5457] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5454] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5453] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5457] <... openat resumed>) = 3 [pid 5454] <... futex resumed>) = 0 [pid 5453] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] close(4 [pid 5059] <... openat resumed>) = 4 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5457] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5454] sync( [pid 5453] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5453] <... futex resumed>) = 0 [pid 5060] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5453] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5457] <... chdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 3 [ 71.575634][ T5457] loop0: detected capacity change from 0 to 1024 [pid 5457] ioctl(4, LOOP_CLR_FD [pid 5060] <... rmdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5455] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5457] <... ioctl resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] getdents64(4, [pid 5058] close(3 [pid 5457] close(4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... close resumed>) = 0 [pid 5457] <... close resumed>) = 0 [pid 5455] <... futex resumed>) = 1 [pid 5451] <... futex resumed>) = 0 [pid 5060] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] close(4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5457] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] sync( [pid 5451] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... close resumed>) = 0 [pid 5457] <... futex resumed>) = 1 [pid 5451] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./32/binderfs", [pid 5059] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5458 attached [pid 5457] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5456] <... futex resumed>) = 0 [pid 5451] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5458 [pid 5458] set_robust_list(0x555555d616a0, 24 [pid 5456] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] <... set_robust_list resumed>) = 0 [pid 5457] <... futex resumed>) = 0 [pid 5456] <... futex resumed>) = 1 [pid 5060] unlink("./32/binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] chdir("./32" [pid 5457] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5059] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5458] <... chdir resumed>) = 0 [pid 5457] <... mknod resumed>) = 0 [pid 5456] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5458] setpgid(0, 0) = 0 [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] getdents64(3, [pid 5458] <... openat resumed>) = 3 [pid 5454] <... sync resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] unlink("./31/binderfs" [pid 5454] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(3 [pid 5059] <... unlink resumed>) = 0 [pid 5453] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5453] exit_group(0 [pid 5060] rmdir("./32" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5458] write(3, "1000", 4 [pid 5453] <... exit_group resumed>) = ? [pid 5059] close(3 [pid 5458] <... write resumed>) = 4 [pid 5457] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5458] close(3 [pid 5457] <... futex resumed>) = 1 [pid 5456] <... futex resumed>) = 0 [pid 5060] mkdir("./33", 0777 [pid 5059] rmdir("./31" [pid 5458] <... close resumed>) = 0 [pid 5457] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5456] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5458] symlink("/dev/binderfs", "./binderfs" [pid 5455] <... sync resumed>) = 0 [pid 5454] <... futex resumed>) = ? [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5458] <... symlink resumed>) = 0 [pid 5457] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5456] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] mkdir("./32", 0777 [pid 5457] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5456] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... mkdir resumed>) = 0 [pid 5455] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5454] +++ exited with 0 +++ [pid 5453] +++ exited with 0 +++ [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5458] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] <... futex resumed>) = 1 [pid 5451] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5458] <... futex resumed>) = 0 [pid 5457] <... open resumed>) = 4 [pid 5455] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5451] exit_group(0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5458] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5451] <... exit_group resumed>) = ? [pid 5455] <... futex resumed>) = ? [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5458] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5458] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5455] +++ exited with 0 +++ [pid 5451] +++ exited with 0 +++ [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5459 ./strace-static-x86_64: Process 5459 attached [pid 5459] set_robust_list(0x555555d616a0, 24) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5459] chdir("./33") = 0 [pid 5057] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5458] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5458] <... mprotect resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5458] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5459] setpgid(0, 0 [pid 5457] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] close(3 [pid 5057] newfstatat(3, "", [pid 5056] <... openat resumed>) = 3 [pid 5458] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5457] <... futex resumed>) = 1 [pid 5456] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(3, "", [pid 5459] <... setpgid resumed>) = 0 [pid 5456] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] getdents64(3, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5456] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5460 attached [pid 5458] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5457] sync( [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5460 [pid 5056] getdents64(3, [pid 5460] set_robust_list(0x555555d616a0, 24 [pid 5459] write(3, "1000", 4./strace-static-x86_64: Process 5461 attached [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] <... write resumed>) = 4 [pid 5458] <... clone3 resumed> => {parent_tid=[5461]}, 88) = 5461 [pid 5461] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5458] rt_sigprocmask(SIG_SETMASK, [], [pid 5461] <... rseq resumed>) = 0 [pid 5460] chdir("./32" [pid 5459] close(3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5461] set_robust_list(0x7f923ecf19a0, 24 [pid 5460] <... chdir resumed>) = 0 [pid 5459] <... close resumed>) = 0 [pid 5458] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5461] <... set_robust_list resumed>) = 0 [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] symlink("/dev/binderfs", "./binderfs" [pid 5458] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5461] rt_sigprocmask(SIG_SETMASK, [], [pid 5460] <... prctl resumed>) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5458] <... futex resumed>) = 0 [pid 5457] <... sync resumed>) = 0 [pid 5461] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5460] setpgid(0, 0 [pid 5459] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5457] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = 0 [pid 5461] memfd_create("syzkaller", 0 [pid 5460] <... setpgid resumed>) = 0 [pid 5459] <... futex resumed>) = 0 [pid 5461] <... memfd_create resumed>) = 3 [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5461] <... mmap resumed>) = 0x7f92368d1000 [pid 5460] <... openat resumed>) = 3 [pid 5459] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5457] <... futex resumed>) = 1 [pid 5457] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5456] <... futex resumed>) = 0 [pid 5456] exit_group(0 [pid 5457] <... futex resumed>) = ? [pid 5456] <... exit_group resumed>) = ? [pid 5461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5460] write(3, "1000", 4 [pid 5459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5457] +++ exited with 0 +++ [pid 5456] +++ exited with 0 +++ [pid 5460] <... write resumed>) = 4 [pid 5459] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] <... umount2 resumed>) = 0 [pid 5056] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5460] close(3 [pid 5459] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5056] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5460] <... close resumed>) = 0 [pid 5459] <... mprotect resumed>) = 0 [pid 5460] symlink("/dev/binderfs", "./binderfs" [pid 5057] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(3, "", [pid 5460] <... symlink resumed>) = 0 [pid 5459] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5460] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5459] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] newfstatat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... openat resumed>) = 4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5460] <... futex resumed>) = 0 [pid 5459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5056] newfstatat(4, "", [pid 5055] getdents64(3, [pid 5460] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 ./strace-static-x86_64: Process 5462 attached [pid 5460] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5459] <... clone3 resumed> => {parent_tid=[5462]}, 88) = 5462 [pid 5057] umount2("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5462] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5460] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5459] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5462] <... rseq resumed>) = 0 [pid 5460] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5459] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] openat(AT_FDCWD, "./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5462] set_robust_list(0x7f923ecf19a0, 24 [pid 5460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5459] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... openat resumed>) = 4 [pid 5056] getdents64(4, [pid 5462] <... set_robust_list resumed>) = 0 [pid 5459] <... futex resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5462] rt_sigprocmask(SIG_SETMASK, [], [pid 5460] <... mmap resumed>) = 0x7f923ecd1000 [pid 5459] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(4 [pid 5462] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5460] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] getdents64(4, [pid 5056] <... close resumed>) = 0 [pid 5462] memfd_create("syzkaller", 0 [pid 5460] <... mprotect resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5462] <... memfd_create resumed>) = 3 [pid 5460] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] getdents64(4, [pid 5056] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] close(4) = 0 [pid 5057] rmdir("./31/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5056] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./32/binderfs", [pid 5057] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./32/binderfs" [pid 5055] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] unlink("./31/binderfs" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5056] getdents64(3, [pid 5055] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(3 [pid 5055] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5056] rmdir("./32" [pid 5057] close(3 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5057] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] rmdir("./31" [pid 5462] <... mmap resumed>) = 0x7f92368d1000 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] mkdir("./33", 0777 [pid 5055] getdents64(4, [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5461] <... write resumed>) = 524288 [pid 5460] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] mkdir("./32", 0777 [pid 5055] getdents64(4, [pid 5057] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] close(4 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] <... openat resumed>) = 3 [pid 5056] close(3 [pid 5055] <... rmdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5463 attached [pid 5461] munmap(0x7f92368d1000, 138412032 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5464 attached [pid 5463] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5461] <... munmap resumed>) = 0 [pid 5460] <... clone3 resumed> => {parent_tid=[5463]}, 88) = 5463 [pid 5057] close(3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] set_robust_list(0x555555d616a0, 24 [pid 5463] <... rseq resumed>) = 0 [pid 5461] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5460] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... close resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./32/binderfs", [pid 5464] <... set_robust_list resumed>) = 0 [pid 5463] set_robust_list(0x7f923ecf19a0, 24 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5464 [pid 5464] chdir("./33" [pid 5463] <... set_robust_list resumed>) = 0 [pid 5460] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5464] <... chdir resumed>) = 0 [pid 5463] rt_sigprocmask(SIG_SETMASK, [], [pid 5461] <... openat resumed>) = 4 [pid 5460] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5465 attached [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5462] <... write resumed>) = 524288 [pid 5461] ioctl(4, LOOP_SET_FD, 3 [pid 5460] <... futex resumed>) = 0 [pid 5055] unlink("./32/binderfs" [pid 5465] set_robust_list(0x555555d616a0, 24 [pid 5464] <... prctl resumed>) = 0 [pid 5463] memfd_create("syzkaller", 0 [pid 5460] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5463] <... memfd_create resumed>) = 3 [pid 5463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5462] munmap(0x7f92368d1000, 138412032) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5465 [pid 5465] <... set_robust_list resumed>) = 0 [pid 5464] setpgid(0, 0 [pid 5055] <... unlink resumed>) = 0 [pid 5462] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5465] chdir("./32" [pid 5464] <... setpgid resumed>) = 0 [pid 5462] <... openat resumed>) = 4 [pid 5055] getdents64(3, [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5462] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... close resumed>) = 0 [pid 5465] <... chdir resumed>) = 0 [pid 5464] <... openat resumed>) = 3 [pid 5055] rmdir("./32" [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5465] setpgid(0, 0) = 0 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5464] write(3, "1000", 4) = 4 [pid 5055] mkdir("./33", 0777 [pid 5464] close(3 [pid 5055] <... mkdir resumed>) = 0 [pid 5465] write(3, "1000", 4 [pid 5464] <... close resumed>) = 0 [pid 5463] <... mmap resumed>) = 0x7f92368d1000 [pid 5465] <... write resumed>) = 4 [pid 5464] symlink("/dev/binderfs", "./binderfs" [pid 5465] close(3 [pid 5464] <... symlink resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5465] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5464] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5464] <... futex resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5465] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5055] close(3 [pid 5465] <... futex resumed>) = 0 [pid 5464] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5463] <... write resumed>) = 524288 [pid 5462] <... ioctl resumed>) = 0 [pid 5461] <... ioctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5465] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5462] close(3) = 0 [pid 5462] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5465] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5464] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5461] close(3 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5464] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5463] munmap(0x7f92368d1000, 138412032 [pid 5462] <... mkdir resumed>) = 0 [pid 5461] <... close resumed>) = 0 ./strace-static-x86_64: Process 5466 attached [pid 5464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5461] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5466] set_robust_list(0x555555d616a0, 24 [pid 5464] <... mmap resumed>) = 0x7f923ecd1000 [pid 5463] <... munmap resumed>) = 0 [pid 5462] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5461] <... mkdir resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5466 [ 71.825871][ T5461] loop3: detected capacity change from 0 to 1024 [ 71.841500][ T5462] loop5: detected capacity change from 0 to 1024 [pid 5465] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5464] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5461] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5466] <... set_robust_list resumed>) = 0 [pid 5464] <... mprotect resumed>) = 0 [pid 5463] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5466] chdir("./33" [pid 5464] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5463] <... openat resumed>) = 4 [pid 5464] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5464] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5463] ioctl(4, LOOP_SET_FD, 3 [pid 5465] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5464] <... clone3 resumed> => {parent_tid=[5467]}, 88) = 5467 [pid 5465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5464] rt_sigprocmask(SIG_SETMASK, [], [pid 5465] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5464] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5464] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5465] <... mprotect resumed>) = 0 [pid 5464] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5465] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5465] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5461] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5468 attached [pid 5461] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5468] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5466] <... chdir resumed>) = 0 [pid 5465] <... clone3 resumed> => {parent_tid=[5468]}, 88) = 5468 [pid 5461] <... openat resumed>) = 3 [pid 5468] <... rseq resumed>) = 0 [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] rt_sigprocmask(SIG_SETMASK, [], [pid 5461] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5468] set_robust_list(0x7f923ecf19a0, 24 [pid 5466] <... prctl resumed>) = 0 [pid 5465] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5462] <... mount resumed>) = 0 [pid 5462] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5467 attached [pid 5466] setpgid(0, 0 [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5466] <... setpgid resumed>) = 0 [pid 5462] <... openat resumed>) = 3 [pid 5468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] <... rseq resumed>) = 0 [pid 5462] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5467] set_robust_list(0x7f923ecf19a0, 24 [pid 5462] <... chdir resumed>) = 0 [pid 5468] memfd_create("syzkaller", 0 [pid 5467] <... set_robust_list resumed>) = 0 [pid 5466] <... openat resumed>) = 3 [pid 5465] <... futex resumed>) = 0 [pid 5462] ioctl(4, LOOP_CLR_FD [pid 5461] <... chdir resumed>) = 0 [pid 5467] rt_sigprocmask(SIG_SETMASK, [], [pid 5465] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5462] <... ioctl resumed>) = 0 [pid 5461] ioctl(4, LOOP_CLR_FD [pid 5467] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5462] close(4 [pid 5461] <... ioctl resumed>) = 0 [pid 5467] memfd_create("syzkaller", 0 [pid 5466] write(3, "1000", 4 [pid 5462] <... close resumed>) = 0 [pid 5461] close(4 [pid 5463] <... ioctl resumed>) = 0 [pid 5468] <... memfd_create resumed>) = 3 [pid 5467] <... memfd_create resumed>) = 3 [pid 5466] <... write resumed>) = 4 [pid 5463] close(3 [pid 5462] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5461] <... close resumed>) = 0 [pid 5468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5466] close(3 [pid 5463] <... close resumed>) = 0 [pid 5462] <... futex resumed>) = 1 [pid 5461] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5459] <... futex resumed>) = 0 [pid 5468] <... mmap resumed>) = 0x7f92368d1000 [pid 5467] <... mmap resumed>) = 0x7f92368d1000 [pid 5466] <... close resumed>) = 0 [pid 5463] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5462] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5461] <... futex resumed>) = 1 [pid 5459] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] <... futex resumed>) = 0 [pid 5468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5466] symlink("/dev/binderfs", "./binderfs" [pid 5461] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5458] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... mkdir resumed>) = 0 [pid 5461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5459] <... futex resumed>) = 0 [pid 5458] <... futex resumed>) = 0 [pid 5466] <... symlink resumed>) = 0 [pid 5463] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5461] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5459] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5458] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5468] <... write resumed>) = 524288 [pid 5467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5466] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... mount resumed>) = 0 [pid 5462] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5461] <... mknod resumed>) = 0 [pid 5461] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5458] <... futex resumed>) = 0 [pid 5461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5458] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] <... futex resumed>) = 0 [pid 5463] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5462] <... mknod resumed>) = 0 [pid 5458] <... futex resumed>) = 0 [ 71.890896][ T5463] loop4: detected capacity change from 0 to 1024 [pid 5466] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5463] <... openat resumed>) = 3 [pid 5462] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5468] munmap(0x7f92368d1000, 138412032) = 0 [pid 5468] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5461] <... open resumed>) = 4 [pid 5468] ioctl(4, LOOP_SET_FD, 3 [pid 5467] <... write resumed>) = 524288 [pid 5467] munmap(0x7f92368d1000, 138412032 [pid 5466] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5463] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5462] <... futex resumed>) = 1 [pid 5459] <... futex resumed>) = 0 [pid 5459] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] <... munmap resumed>) = 0 [pid 5466] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5463] <... chdir resumed>) = 0 [pid 5462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5461] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5459] <... futex resumed>) = 0 [pid 5459] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5461] <... futex resumed>) = 1 [pid 5461] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5458] <... futex resumed>) = 0 [pid 5466] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5458] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5461] <... futex resumed>) = 0 [pid 5458] <... futex resumed>) = 1 [pid 5466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5461] sync( [pid 5458] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5466] <... mmap resumed>) = 0x7f923ecd1000 [pid 5463] ioctl(4, LOOP_CLR_FD [pid 5468] <... ioctl resumed>) = 0 [pid 5468] close(3 [pid 5466] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5463] <... ioctl resumed>) = 0 [pid 5468] <... close resumed>) = 0 [pid 5467] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5466] <... mprotect resumed>) = 0 [pid 5463] close(4 [pid 5462] <... open resumed>) = 4 [pid 5466] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5463] <... close resumed>) = 0 [pid 5468] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5467] <... openat resumed>) = 4 [pid 5466] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5463] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5462] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... futex resumed>) = 1 [pid 5468] <... mkdir resumed>) = 0 [pid 5467] ioctl(4, LOOP_SET_FD, 3 [pid 5466] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5463] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5462] <... futex resumed>) = 1 [pid 5460] <... futex resumed>) = 0 [pid 5459] <... futex resumed>) = 0 [pid 5468] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5459] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5460] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 5469 attached [pid 5468] <... mount resumed>) = 0 [pid 5462] sync( [pid 5469] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5468] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5463] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5461] <... sync resumed>) = 0 [pid 5460] <... futex resumed>) = 0 [pid 5459] <... futex resumed>) = 0 [pid 5468] <... openat resumed>) = 3 [pid 5461] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5469] <... rseq resumed>) = 0 [pid 5468] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5466] <... clone3 resumed> => {parent_tid=[5469]}, 88) = 5469 [pid 5463] <... mknod resumed>) = 0 [pid 5461] <... futex resumed>) = 1 [pid 5460] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5459] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5458] <... futex resumed>) = 0 [pid 5468] <... chdir resumed>) = 0 [pid 5463] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] rt_sigprocmask(SIG_SETMASK, [], [pid 5461] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5458] exit_group(0 [pid 5469] set_robust_list(0x7f923ecf19a0, 24 [pid 5460] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] <... exit_group resumed>) = ? [pid 5469] <... set_robust_list resumed>) = 0 [pid 5469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5469] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5460] <... futex resumed>) = 0 [pid 5466] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5463] <... futex resumed>) = 0 [pid 5468] ioctl(4, LOOP_CLR_FD [pid 5466] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5461] <... futex resumed>) = ? [pid 5460] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5469] <... futex resumed>) = 0 [pid 5468] <... ioctl resumed>) = 0 [pid 5466] <... futex resumed>) = 1 [pid 5461] +++ exited with 0 +++ [pid 5458] +++ exited with 0 +++ [pid 5469] memfd_create("syzkaller", 0 [pid 5466] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5469] <... memfd_create resumed>) = 3 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5058] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... mmap resumed>) = 0x7f92368d1000 [pid 5468] close(4 [pid 5463] <... open resumed>) = 4 [pid 5058] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5468] <... close resumed>) = 0 [pid 5463] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [pid 5468] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] <... ioctl resumed>) = 0 [pid 5463] <... futex resumed>) = 1 [pid 5460] <... futex resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5468] <... futex resumed>) = 1 [ 71.957764][ T5468] loop2: detected capacity change from 0 to 1024 [ 71.990755][ T5467] loop1: detected capacity change from 0 to 1024 [pid 5467] close(3 [pid 5465] <... futex resumed>) = 0 [pid 5463] sync( [pid 5460] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5468] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5465] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5462] <... sync resumed>) = 0 [pid 5460] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5465] <... futex resumed>) = 0 [pid 5462] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5460] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5469] <... write resumed>) = 524288 [pid 5468] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5467] <... close resumed>) = 0 [pid 5465] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5462] <... futex resumed>) = 1 [pid 5459] <... futex resumed>) = 0 [pid 5058] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] munmap(0x7f92368d1000, 138412032 [pid 5467] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5462] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5459] exit_group(0 [pid 5469] <... munmap resumed>) = 0 [pid 5468] <... mknod resumed>) = 0 [pid 5467] <... mkdir resumed>) = 0 [pid 5463] <... sync resumed>) = 0 [pid 5462] <... futex resumed>) = ? [pid 5459] <... exit_group resumed>) = ? [pid 5469] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5468] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5463] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5462] +++ exited with 0 +++ [pid 5459] +++ exited with 0 +++ [pid 5469] <... openat resumed>) = 4 [pid 5469] ioctl(4, LOOP_SET_FD, 3 [pid 5468] <... futex resumed>) = 1 [pid 5467] <... mount resumed>) = 0 [pid 5465] <... futex resumed>) = 0 [pid 5463] <... futex resumed>) = 1 [pid 5460] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5467] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5465] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5468] <... open resumed>) = 4 [pid 5467] <... openat resumed>) = 3 [pid 5465] <... futex resumed>) = 0 [pid 5463] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5460] exit_group(0 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5058] <... umount2 resumed>) = 0 [pid 5469] <... ioctl resumed>) = 0 [pid 5060] <... restart_syscall resumed>) = 0 [pid 5469] close(3) = 0 [pid 5469] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5467] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5465] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5463] <... futex resumed>) = ? [pid 5460] <... exit_group resumed>) = ? [pid 5469] <... mkdir resumed>) = 0 [pid 5467] <... chdir resumed>) = 0 [pid 5463] +++ exited with 0 +++ [pid 5460] +++ exited with 0 +++ [pid 5469] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5467] ioctl(4, LOOP_CLR_FD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5460, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5058] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] <... ioctl resumed>) = 0 [pid 5468] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] close(4 [pid 5060] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5468] <... futex resumed>) = 1 [pid 5467] <... close resumed>) = 0 [pid 5465] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5468] sync( [pid 5467] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5465] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5467] <... futex resumed>) = 1 [pid 5465] <... futex resumed>) = 0 [pid 5464] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5467] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5465] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(3, "", [pid 5059] <... openat resumed>) = 3 [pid 5469] <... mount resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] newfstatat(3, "", [pid 5464] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5464] <... futex resumed>) = 1 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 72.079069][ T5469] loop0: detected capacity change from 0 to 1024 [pid 5060] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5469] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5467] <... futex resumed>) = 0 [pid 5464] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5059] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5469] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5469] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... openat resumed>) = 4 [pid 5469] <... chdir resumed>) = 0 [pid 5467] <... mknod resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5469] ioctl(4, LOOP_CLR_FD [pid 5467] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5469] <... ioctl resumed>) = 0 [pid 5058] getdents64(4, [pid 5469] close(4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5469] <... close resumed>) = 0 [pid 5467] <... futex resumed>) = 1 [pid 5464] <... futex resumed>) = 0 [pid 5058] getdents64(4, [pid 5469] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5469] <... futex resumed>) = 1 [pid 5467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5466] <... futex resumed>) = 0 [pid 5464] <... futex resumed>) = 0 [pid 5058] close(4 [pid 5469] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5466] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5466] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5468] <... sync resumed>) = 0 [pid 5466] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... rmdir resumed>) = 0 [pid 5468] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] <... open resumed>) = 4 [pid 5058] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5468] <... futex resumed>) = 1 [pid 5465] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5465] exit_group(0 [pid 5058] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5467] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] unlink("./32/binderfs" [pid 5467] <... futex resumed>) = 1 [pid 5464] <... futex resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5467] sync( [pid 5465] <... exit_group resumed>) = ? [pid 5464] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5464] <... futex resumed>) = 0 [pid 5464] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5468] +++ exited with 0 +++ [pid 5465] +++ exited with 0 +++ [pid 5058] close(3 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5058] <... close resumed>) = 0 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5469] <... mknod resumed>) = 0 [pid 5058] rmdir("./32") = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5057] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5057] newfstatat(3, "", [pid 5058] mkdir("./33", 0777 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5057] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5469] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5469] <... futex resumed>) = 1 [pid 5466] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 3 [pid 5057] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5466] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5466] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5469] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5059] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5469] <... open resumed>) = 4 [pid 5469] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5466] <... futex resumed>) = 0 [pid 5466] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] close(3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5466] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5469] sync( [pid 5059] <... openat resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5464] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5470 [pid 5059] close(4) = 0 [pid 5059] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 ./strace-static-x86_64: Process 5470 attached [pid 5059] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5470] set_robust_list(0x555555d616a0, 24) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5470] chdir("./33") = 0 [pid 5059] newfstatat(AT_FDCWD, "./32/binderfs", [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5470] <... prctl resumed>) = 0 [pid 5059] unlink("./32/binderfs" [pid 5470] setpgid(0, 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5470] <... setpgid resumed>) = 0 [pid 5469] <... sync resumed>) = 0 [pid 5059] getdents64(3, [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] <... sync resumed>) = 0 [pid 5060] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5469] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5470] <... openat resumed>) = 3 [pid 5469] <... futex resumed>) = 1 [pid 5467] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] close(3 [pid 5470] write(3, "1000", 4 [pid 5469] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5467] <... futex resumed>) = 0 [pid 5466] exit_group(0 [pid 5464] exit_group(0 [pid 5060] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5470] <... write resumed>) = 4 [pid 5469] <... futex resumed>) = ? [pid 5467] stat(0xffffff00, [pid 5466] <... exit_group resumed>) = ? [pid 5470] close(3 [pid 5469] +++ exited with 0 +++ [pid 5467] +++ exited with 0 +++ [pid 5464] <... exit_group resumed>) = ? [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5470] <... close resumed>) = 0 [pid 5466] +++ exited with 0 +++ [pid 5464] +++ exited with 0 +++ [pid 5060] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5470] symlink("/dev/binderfs", "./binderfs" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] rmdir("./32" [pid 5470] <... symlink resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... rmdir resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5464, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5466, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5470] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 4 [pid 5059] mkdir("./33", 0777 [pid 5470] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5059] <... mkdir resumed>) = 0 [pid 5056] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(3, "", [pid 5055] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5470] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5055] newfstatat(3, "", [pid 5470] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5470] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] getdents64(3, [pid 5059] <... openat resumed>) = 3 [pid 5056] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5470] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5055] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5470] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] close(3) = 0 [pid 5060] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5470] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5470] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5060] close(4 [pid 5470] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... close resumed>) = 0 [pid 5470] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} => {parent_tid=[5471]}, 88) = 5471 [pid 5470] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5470] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5470] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5470] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5472 attached [pid 5470] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5471 attached [pid 5472] set_robust_list(0x555555d616a0, 24 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5472 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] <... set_robust_list resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] chdir("./33" [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5472] <... chdir resumed>) = 0 [pid 5060] unlink("./33/binderfs" [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5472] <... prctl resumed>) = 0 [pid 5471] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5060] <... unlink resumed>) = 0 [pid 5057] umount2("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5472] setpgid(0, 0 [pid 5060] getdents64(3, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] <... setpgid resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5471] <... rseq resumed>) = 0 [pid 5055] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] set_robust_list(0x7f923ecf19a0, 24 [pid 5060] close(3 [pid 5057] <... openat resumed>) = 4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5472] <... openat resumed>) = 3 [pid 5471] <... set_robust_list resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... close resumed>) = 0 [pid 5471] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] rmdir("./33" [pid 5057] newfstatat(4, "", [pid 5472] write(3, "1000", 4 [pid 5055] <... openat resumed>) = 4 [pid 5471] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] newfstatat(4, "", [pid 5472] <... write resumed>) = 4 [pid 5471] memfd_create("syzkaller", 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5472] close(3 [pid 5471] <... memfd_create resumed>) = 3 [pid 5060] mkdir("./34", 0777 [pid 5057] getdents64(4, [pid 5056] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5472] <... close resumed>) = 0 [pid 5471] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5472] symlink("/dev/binderfs", "./binderfs" [pid 5471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5055] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5472] <... symlink resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] close(4 [pid 5056] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] unlink("./33/binderfs" [pid 5057] rmdir("./32/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5472] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5472] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5471] <... write resumed>) = 524288 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5055] <... unlink resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5472] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] newfstatat(4, "", [pid 5057] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, [pid 5472] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5057] newfstatat(AT_FDCWD, "./32/binderfs", [pid 5056] getdents64(4, [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(3 [pid 5472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] unlink("./32/binderfs" [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... close resumed>) = 0 [pid 5472] <... mmap resumed>) = 0x7f923ecd1000 [pid 5056] getdents64(4, [pid 5055] rmdir("./33" [pid 5472] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5472] <... mprotect resumed>) = 0 [pid 5060] close(3 [pid 5055] mkdir("./34", 0777) = 0 [pid 5472] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5471] munmap(0x7f92368d1000, 138412032 [pid 5060] <... close resumed>) = 0 [pid 5057] getdents64(3, [pid 5056] close(4 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5472] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5471] <... munmap resumed>) = 0 [pid 5056] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5471] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5471] <... openat resumed>) = 4 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] close(3 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5473 ./strace-static-x86_64: Process 5474 attached [pid 5472] <... clone3 resumed> => {parent_tid=[5474]}, 88) = 5474 [pid 5471] ioctl(4, LOOP_SET_FD, 3 [pid 5057] close(3 [pid 5056] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... close resumed>) = 0 ./strace-static-x86_64: Process 5473 attached [pid 5472] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5473] set_robust_list(0x555555d616a0, 24 [pid 5472] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5472] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] rmdir("./32" [pid 5472] <... futex resumed>) = 0 [pid 5056] unlink("./33/binderfs" [pid 5472] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5474] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5473] <... set_robust_list resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5474] <... rseq resumed>) = 0 [pid 5473] chdir("./34" [pid 5056] getdents64(3, [pid 5474] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5474] rt_sigprocmask(SIG_SETMASK, [], [pid 5473] <... chdir resumed>) = 0 [pid 5056] close(3 [pid 5474] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] mkdir("./33", 0777 [pid 5474] memfd_create("syzkaller", 0 [pid 5056] <... close resumed>) = 0 [pid 5474] <... memfd_create resumed>) = 3 [pid 5474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] <... mkdir resumed>) = 0 [pid 5056] rmdir("./33" [pid 5474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5473] <... prctl resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... rmdir resumed>) = 0 [pid 5471] <... ioctl resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5471] close(3 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] mkdir("./34", 0777 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5471] <... close resumed>) = 0 [pid 5471] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] <... mkdir resumed>) = 0 [pid 5057] close(3 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5475 [pid 5471] <... mkdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5476 attached ./strace-static-x86_64: Process 5475 attached [pid 5473] setpgid(0, 0 [pid 5471] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5476 [pid 5056] <... openat resumed>) = 3 [pid 5475] set_robust_list(0x555555d616a0, 24 [pid 5473] <... setpgid resumed>) = 0 [pid 5476] set_robust_list(0x555555d616a0, 24 [pid 5475] <... set_robust_list resumed>) = 0 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] chdir("./34" [pid 5476] chdir("./33" [pid 5473] <... openat resumed>) = 3 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5476] <... chdir resumed>) = 0 [pid 5475] <... chdir resumed>) = 0 [pid 5473] write(3, "1000", 4 [pid 5471] <... mount resumed>) = 0 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] <... write resumed>) = 524288 [pid 5471] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] close(3 [pid 5476] <... prctl resumed>) = 0 [pid 5475] <... prctl resumed>) = 0 [pid 5473] <... write resumed>) = 4 [pid 5476] setpgid(0, 0 [pid 5475] setpgid(0, 0 [pid 5473] close(3 [pid 5471] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5476] <... setpgid resumed>) = 0 [pid 5473] <... close resumed>) = 0 [pid 5471] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] <... setpgid resumed>) = 0 [pid 5476] <... openat resumed>) = 3 [pid 5471] <... chdir resumed>) = 0 [pid 5476] write(3, "1000", 4 [ 72.374384][ T5471] loop3: detected capacity change from 0 to 1024 [pid 5471] ioctl(4, LOOP_CLR_FD [pid 5476] <... write resumed>) = 4 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] <... ioctl resumed>) = 0 [pid 5476] close(3 [pid 5471] close(4) = 0 [pid 5471] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5470] <... futex resumed>) = 0 [pid 5476] <... close resumed>) = 0 [pid 5470] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5476] symlink("/dev/binderfs", "./binderfs" [pid 5471] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5470] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5477 attached [pid 5476] <... symlink resumed>) = 0 [pid 5475] <... openat resumed>) = 3 [pid 5474] munmap(0x7f92368d1000, 138412032 [pid 5473] symlink("/dev/binderfs", "./binderfs" [pid 5470] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5477] set_robust_list(0x555555d616a0, 24 [pid 5476] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5475] write(3, "1000", 4 [pid 5474] <... munmap resumed>) = 0 [pid 5473] <... symlink resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5477 [pid 5477] <... set_robust_list resumed>) = 0 [pid 5476] <... futex resumed>) = 0 [pid 5475] <... write resumed>) = 4 [pid 5474] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5471] <... mknod resumed>) = 0 [pid 5477] chdir("./34" [pid 5476] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5475] close(3 [pid 5474] <... openat resumed>) = 4 [pid 5473] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5471] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5477] <... chdir resumed>) = 0 [pid 5476] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5475] <... close resumed>) = 0 [pid 5473] <... futex resumed>) = 0 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] symlink("/dev/binderfs", "./binderfs" [pid 5477] <... prctl resumed>) = 0 [pid 5473] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5477] setpgid(0, 0 [pid 5476] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5475] <... symlink resumed>) = 0 [pid 5474] ioctl(4, LOOP_SET_FD, 3 [pid 5473] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5471] <... futex resumed>) = 1 [pid 5470] <... futex resumed>) = 0 [pid 5477] <... setpgid resumed>) = 0 [pid 5475] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5473] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5470] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] <... futex resumed>) = 0 [pid 5473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5477] <... openat resumed>) = 3 [pid 5476] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5475] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5474] <... ioctl resumed>) = 0 [pid 5473] <... mmap resumed>) = 0x7f923ecd1000 [pid 5470] <... futex resumed>) = 0 [pid 5475] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5473] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5473] <... mprotect resumed>) = 0 [pid 5471] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5470] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5477] write(3, "1000", 4 [pid 5476] <... mmap resumed>) = 0x7f923ecd1000 [pid 5475] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5473] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5477] <... write resumed>) = 4 [pid 5476] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5475] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5474] close(3 [pid 5473] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5471] <... open resumed>) = 4 [pid 5474] <... close resumed>) = 0 [pid 5471] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5474] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5471] <... futex resumed>) = 1 [pid 5470] <... futex resumed>) = 0 [pid 5477] close(3 [pid 5475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5474] <... mkdir resumed>) = 0 [pid 5473] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5471] sync( [pid 5470] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5478 attached [pid 5477] <... close resumed>) = 0 [pid 5476] <... mprotect resumed>) = 0 [pid 5475] <... mmap resumed>) = 0x7f923ecd1000 [pid 5474] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5470] <... futex resumed>) = 0 [pid 5478] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5477] symlink("/dev/binderfs", "./binderfs" [pid 5476] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5475] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5478] <... rseq resumed>) = 0 [pid 5476] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5473] <... clone3 resumed> => {parent_tid=[5478]}, 88) = 5478 [pid 5470] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5478] set_robust_list(0x7f923ecf19a0, 24 [pid 5476] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5475] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 5479 attached [pid 5478] <... set_robust_list resumed>) = 0 [pid 5477] <... symlink resumed>) = 0 [pid 5473] rt_sigprocmask(SIG_SETMASK, [], [pid 5479] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5478] rt_sigprocmask(SIG_SETMASK, [], [pid 5477] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5476] <... clone3 resumed> => {parent_tid=[5479]}, 88) = 5479 [pid 5475] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5479] <... rseq resumed>) = 0 [pid 5478] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] <... futex resumed>) = 0 [pid 5476] rt_sigprocmask(SIG_SETMASK, [], [pid 5475] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5473] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5479] set_robust_list(0x7f923ecf19a0, 24 [pid 5478] memfd_create("syzkaller", 0 [pid 5476] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5474] <... mount resumed>) = 0 [pid 5473] <... futex resumed>) = 0 [pid 5475] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5479] <... set_robust_list resumed>) = 0 [pid 5478] <... memfd_create resumed>) = 3 [pid 5477] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5476] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5474] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5473] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5480 attached [pid 5479] rt_sigprocmask(SIG_SETMASK, [], [pid 5478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5477] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5476] <... futex resumed>) = 0 [pid 5471] <... sync resumed>) = 0 [pid 5480] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5478] <... mmap resumed>) = 0x7f92368d1000 [pid 5477] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5476] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5474] <... openat resumed>) = 3 [pid 5480] <... rseq resumed>) = 0 [pid 5479] memfd_create("syzkaller", 0 [pid 5477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5474] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5471] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5474] <... chdir resumed>) = 0 [pid 5471] <... futex resumed>) = 1 [pid 5470] <... futex resumed>) = 0 [pid 5480] set_robust_list(0x7f923ecf19a0, 24 [pid 5479] <... memfd_create resumed>) = 3 [pid 5477] <... mmap resumed>) = 0x7f923ecd1000 [pid 5474] ioctl(4, LOOP_CLR_FD [ 72.455174][ T5474] loop4: detected capacity change from 0 to 1024 [pid 5471] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5470] exit_group(0 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5477] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5474] <... ioctl resumed>) = 0 [pid 5471] <... futex resumed>) = ? [pid 5470] <... exit_group resumed>) = ? [pid 5480] rt_sigprocmask(SIG_SETMASK, [], [pid 5479] <... mmap resumed>) = 0x7f92368d1000 [pid 5480] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] <... mprotect resumed>) = 0 [pid 5471] +++ exited with 0 +++ [pid 5470] +++ exited with 0 +++ [pid 5479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5480] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5474] close(4 [pid 5477] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5475] <... clone3 resumed> => {parent_tid=[5480]}, 88) = 5480 [pid 5474] <... close resumed>) = 0 [pid 5058] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5475] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5477] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5475] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5474] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5475] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5474] <... futex resumed>) = 1 [pid 5472] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5480] <... futex resumed>) = 0 [pid 5475] <... futex resumed>) = 1 [pid 5475] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5472] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5480] memfd_create("syzkaller", 0) = 3 [pid 5474] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5472] <... futex resumed>) = 0 [pid 5477] <... clone3 resumed> => {parent_tid=[5481]}, 88) = 5481 [pid 5058] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5477] rt_sigprocmask(SIG_SETMASK, [], [pid 5472] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5477] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5477] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5481 attached [pid 5477] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5474] <... mknod resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5481] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5480] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5481] <... rseq resumed>) = 0 [pid 5058] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] set_robust_list(0x7f923ecf19a0, 24 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5481] <... set_robust_list resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5481] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... openat resumed>) = 4 [pid 5481] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] newfstatat(4, "", [pid 5481] memfd_create("syzkaller", 0 [pid 5474] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5481] <... memfd_create resumed>) = 3 [pid 5474] <... futex resumed>) = 1 [pid 5472] <... futex resumed>) = 0 [pid 5058] getdents64(4, [pid 5481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5474] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5472] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5481] <... mmap resumed>) = 0x7f92368d1000 [pid 5474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5472] <... futex resumed>) = 0 [pid 5058] getdents64(4, [pid 5481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5478] <... write resumed>) = 524288 [pid 5472] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5479] <... write resumed>) = 524288 [pid 5058] close(4 [pid 5479] munmap(0x7f92368d1000, 138412032 [pid 5478] munmap(0x7f92368d1000, 138412032 [pid 5479] <... munmap resumed>) = 0 [pid 5478] <... munmap resumed>) = 0 [pid 5474] <... open resumed>) = 4 [pid 5058] <... close resumed>) = 0 [pid 5480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5478] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5474] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5479] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5474] <... futex resumed>) = 1 [pid 5472] <... futex resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5478] <... openat resumed>) = 4 [pid 5478] ioctl(4, LOOP_SET_FD, 3 [pid 5474] sync( [pid 5472] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5472] <... futex resumed>) = 0 [pid 5472] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./33/binderfs") = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3) = 0 [pid 5058] rmdir("./33") = 0 [pid 5058] mkdir("./34", 0777 [pid 5479] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... mkdir resumed>) = 0 [pid 5481] <... write resumed>) = 524288 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5480] <... write resumed>) = 524288 [pid 5480] munmap(0x7f92368d1000, 138412032 [pid 5481] munmap(0x7f92368d1000, 138412032 [pid 5480] <... munmap resumed>) = 0 [pid 5478] <... ioctl resumed>) = 0 [pid 5474] <... sync resumed>) = 0 [pid 5481] <... munmap resumed>) = 0 [pid 5474] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] close(3 [pid 5481] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5480] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5478] <... close resumed>) = 0 [pid 5474] <... futex resumed>) = 1 [pid 5472] <... futex resumed>) = 0 [pid 5481] <... openat resumed>) = 4 [pid 5480] <... openat resumed>) = 4 [pid 5478] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5474] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5472] exit_group(0 [pid 5481] ioctl(4, LOOP_SET_FD, 3 [pid 5480] ioctl(4, LOOP_SET_FD, 3 [pid 5479] <... ioctl resumed>) = 0 [pid 5478] <... mkdir resumed>) = 0 [pid 5481] <... ioctl resumed>) = 0 [pid 5474] <... futex resumed>) = ? [pid 5472] <... exit_group resumed>) = ? [pid 5474] +++ exited with 0 +++ [pid 5479] close(3 [ 72.566242][ T5478] loop5: detected capacity change from 0 to 1024 [ 72.585016][ T5479] loop2: detected capacity change from 0 to 1024 [ 72.604070][ T5481] loop1: detected capacity change from 0 to 1024 [pid 5478] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... openat resumed>) = 3 [pid 5058] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5479] <... close resumed>) = 0 [pid 5478] <... mount resumed>) = 0 [pid 5058] close(3 [pid 5479] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5478] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5480] <... ioctl resumed>) = 0 [pid 5479] <... mkdir resumed>) = 0 [pid 5478] <... openat resumed>) = 3 [pid 5472] +++ exited with 0 +++ [pid 5058] <... close resumed>) = 0 [pid 5480] close(3 [pid 5479] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5478] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5478] <... chdir resumed>) = 0 [pid 5480] <... close resumed>) = 0 [pid 5478] ioctl(4, LOOP_CLR_FD [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5472, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5480] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5478] <... ioctl resumed>) = 0 [pid 5480] <... mkdir resumed>) = 0 [pid 5479] <... mount resumed>) = 0 [pid 5478] close(4 [pid 5059] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5480] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5479] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5478] <... close resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5482 [pid 5479] <... openat resumed>) = 3 [pid 5479] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5482 attached ) = 0 [pid 5478] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5479] ioctl(4, LOOP_CLR_FD [pid 5478] <... futex resumed>) = 1 [pid 5473] <... futex resumed>) = 0 [pid 5479] <... ioctl resumed>) = 0 [pid 5473] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5479] close(4 [pid 5473] <... futex resumed>) = 0 [pid 5482] set_robust_list(0x555555d616a0, 24 [pid 5481] close(3 [pid 5479] <... close resumed>) = 0 [pid 5473] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... openat resumed>) = 3 [pid 5479] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] <... close resumed>) = 0 [pid 5479] <... futex resumed>) = 1 [pid 5476] <... futex resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5479] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5476] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5476] <... futex resumed>) = 0 [pid 5479] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5482] chdir("./34" [pid 5481] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5482] <... chdir resumed>) = 0 [pid 5481] <... mkdir resumed>) = 0 [ 72.610913][ T5480] loop0: detected capacity change from 0 to 1024 [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] getdents64(3, [pid 5482] <... prctl resumed>) = 0 [pid 5480] <... mount resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5482] setpgid(0, 0 [pid 5478] <... mknod resumed>) = 0 [pid 5059] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5480] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5482] <... setpgid resumed>) = 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5480] <... openat resumed>) = 3 [pid 5479] <... mknod resumed>) = 0 [pid 5476] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5482] <... openat resumed>) = 3 [pid 5482] write(3, "1000", 4) = 4 [pid 5481] <... mount resumed>) = 0 [pid 5480] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5479] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] close(3 [pid 5481] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5480] <... chdir resumed>) = 0 [pid 5479] <... futex resumed>) = 1 [pid 5478] <... futex resumed>) = 1 [pid 5476] <... futex resumed>) = 0 [pid 5473] <... futex resumed>) = 0 [pid 5482] <... close resumed>) = 0 [pid 5481] <... openat resumed>) = 3 [pid 5480] ioctl(4, LOOP_CLR_FD [pid 5479] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5478] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5476] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5473] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5482] symlink("/dev/binderfs", "./binderfs" [pid 5481] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5482] <... symlink resumed>) = 0 [pid 5481] <... chdir resumed>) = 0 [pid 5473] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5476] <... futex resumed>) = 0 [pid 5478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5476] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5480] <... ioctl resumed>) = 0 [pid 5479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5481] ioctl(4, LOOP_CLR_FD [pid 5479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5478] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5481] <... ioctl resumed>) = 0 [pid 5481] close(4) = 0 [pid 5481] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5481] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5482] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5477] <... futex resumed>) = 0 [pid 5482] <... futex resumed>) = 0 [pid 5480] close(4 [pid 5477] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5481] <... futex resumed>) = 0 [pid 5480] <... close resumed>) = 0 [pid 5477] <... futex resumed>) = 1 [pid 5482] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5481] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5482] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5477] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = 0 [pid 5482] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5481] <... mknod resumed>) = 0 [pid 5480] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5481] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5480] <... futex resumed>) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5475] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5481] <... futex resumed>) = 1 [pid 5477] <... futex resumed>) = 0 [pid 5482] <... mmap resumed>) = 0x7f923ecd1000 [pid 5481] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5482] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5481] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5477] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] <... mprotect resumed>) = 0 [pid 5481] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5478] <... open resumed>) = 4 [pid 5477] <... futex resumed>) = 0 [pid 5475] <... futex resumed>) = 0 [pid 5059] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5482] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5480] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5477] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5475] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5482] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5481] <... open resumed>) = 4 [pid 5482] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5481] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5483 attached [pid 5480] <... mknod resumed>) = 0 [pid 5479] <... open resumed>) = 4 [pid 5478] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5478] <... futex resumed>) = 1 [pid 5473] <... futex resumed>) = 0 [pid 5059] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5473] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5473] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] sync( [pid 5473] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5480] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] <... clone3 resumed> => {parent_tid=[5483]}, 88) = 5483 [pid 5482] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... openat resumed>) = 4 [pid 5483] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5482] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5483] <... rseq resumed>) = 0 [pid 5483] set_robust_list(0x7f923ecf19a0, 24 [pid 5482] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] <... futex resumed>) = 0 [pid 5480] <... futex resumed>) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5483] rt_sigprocmask(SIG_SETMASK, [], [pid 5482] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5481] <... futex resumed>) = 1 [pid 5483] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5481] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5475] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5483] memfd_create("syzkaller", 0 [pid 5477] <... futex resumed>) = 0 [pid 5483] <... memfd_create resumed>) = 3 [pid 5477] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5481] <... futex resumed>) = 0 [pid 5477] <... futex resumed>) = 1 [pid 5481] sync( [pid 5480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5477] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5475] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5475] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5059] getdents64(4, [pid 5483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5479] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5479] <... futex resumed>) = 1 [pid 5476] <... futex resumed>) = 0 [pid 5059] getdents64(4, [pid 5479] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5476] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5479] sync( [pid 5476] <... futex resumed>) = 0 [pid 5059] close(4 [pid 5476] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5059] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5059] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5480] <... open resumed>) = 4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5483] <... write resumed>) = 524288 [pid 5480] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5483] munmap(0x7f92368d1000, 138412032 [pid 5480] sync( [pid 5475] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] <... munmap resumed>) = 0 [pid 5475] <... futex resumed>) = 0 [pid 5475] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5483] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5059] unlink("./33/binderfs" [pid 5481] <... sync resumed>) = 0 [pid 5480] <... sync resumed>) = 0 [pid 5479] <... sync resumed>) = 0 [pid 5478] <... sync resumed>) = 0 [pid 5473] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5483] ioctl(4, LOOP_SET_FD, 3 [pid 5481] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5479] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... unlink resumed>) = 0 [pid 5481] <... futex resumed>) = 1 [pid 5479] <... futex resumed>) = 1 [pid 5477] <... futex resumed>) = 0 [pid 5476] <... futex resumed>) = 0 [pid 5480] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5477] exit_group(0 [pid 5475] <... futex resumed>) = 0 [pid 5480] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5478] <... futex resumed>) = 0 [pid 5477] <... exit_group resumed>) = ? [pid 5475] exit_group(0 [pid 5481] +++ exited with 0 +++ [pid 5480] <... futex resumed>) = ? [pid 5479] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5478] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] +++ exited with 0 +++ [pid 5475] <... exit_group resumed>) = ? [pid 5480] +++ exited with 0 +++ [pid 5475] +++ exited with 0 +++ [pid 5483] <... ioctl resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5476] exit_group(0 [pid 5059] getdents64(3, [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5479] <... futex resumed>) = ? [pid 5476] <... exit_group resumed>) = ? [pid 5473] exit_group(0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5479] +++ exited with 0 +++ [pid 5473] <... exit_group resumed>) = ? [pid 5056] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] close(3 [pid 5055] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] <... close resumed>) = 0 [pid 5478] <... futex resumed>) = ? [pid 5056] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5478] +++ exited with 0 +++ [pid 5056] <... openat resumed>) = 3 [pid 5055] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(3, "", [pid 5483] <... mkdir resumed>) = 0 [pid 5483] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5473] +++ exited with 0 +++ [pid 5055] <... openat resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] getdents64(3, [pid 5055] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] close(3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... close resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] rmdir("./33" [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5059] <... rmdir resumed>) = 0 [pid 5059] mkdir("./34", 0777 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... mkdir resumed>) = 0 [ 72.758168][ T5483] loop3: detected capacity change from 0 to 1024 [pid 5060] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] <... mount resumed>) = 0 [pid 5483] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5476] +++ exited with 0 +++ [pid 5483] <... openat resumed>) = 3 [pid 5483] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5483] <... chdir resumed>) = 0 [pid 5483] ioctl(4, LOOP_CLR_FD [pid 5060] <... umount2 resumed>) = 0 [pid 5483] <... ioctl resumed>) = 0 [pid 5060] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] <... close resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5483] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] <... futex resumed>) = 1 [pid 5482] <... futex resumed>) = 0 [pid 5060] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5482] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5482] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5482] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5059] <... openat resumed>) = 3 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, [pid 5483] <... mknod resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = 0 [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5483] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5059] close(3 [pid 5057] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5483] <... futex resumed>) = 1 [pid 5482] <... futex resumed>) = 0 [pid 5056] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5482] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5483] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5482] <... futex resumed>) = 0 [pid 5060] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5482] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5483] <... open resumed>) = 4 [pid 5060] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5483] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... openat resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(3, "", [pid 5056] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(3, [pid 5056] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(4, "", [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... openat resumed>) = 4 [pid 5057] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5484 attached [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5056] getdents64(4, [pid 5484] set_robust_list(0x555555d616a0, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5484 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5060] unlink("./34/binderfs" [pid 5484] <... set_robust_list resumed>) = 0 [pid 5056] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, [pid 5484] chdir("./34" [pid 5483] <... futex resumed>) = 1 [pid 5482] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5484] <... chdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5483] sync( [pid 5482] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(4 [pid 5482] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5482] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] close(3 [pid 5055] <... close resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5055] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] unlink("./34/binderfs" [pid 5057] <... umount2 resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5060] rmdir("./34" [pid 5057] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5484] <... prctl resumed>) = 0 [pid 5060] mkdir("./35", 0777 [pid 5057] newfstatat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5484] setpgid(0, 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5484] <... setpgid resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(3 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... mkdir resumed>) = 0 [pid 5057] umount2("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5484] <... openat resumed>) = 3 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./34" [pid 5055] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5484] write(3, "1000", 4 [pid 5060] <... openat resumed>) = 3 [pid 5484] <... write resumed>) = 4 [pid 5484] close(3 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5484] <... close resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] openat(AT_FDCWD, "./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] unlink("./34/binderfs" [pid 5484] symlink("/dev/binderfs", "./binderfs" [pid 5060] close(3 [pid 5484] <... symlink resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5056] mkdir("./35", 0777 [pid 5055] <... unlink resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] getdents64(3, [pid 5484] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] newfstatat(4, "", [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5484] <... futex resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] close(3 [pid 5484] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] getdents64(4, [pid 5056] <... openat resumed>) = 3 [pid 5484] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5484] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5485 [pid 5057] getdents64(4, [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] rmdir("./34" [pid 5484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5483] <... sync resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5484] <... mmap resumed>) = 0x7f923ecd1000 [pid 5483] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5057] close(4 [pid 5056] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5484] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] rmdir("./33/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"./strace-static-x86_64: Process 5485 attached [pid 5483] <... futex resumed>) = 1 [pid 5482] <... futex resumed>) = 0 [pid 5055] mkdir("./35", 0777 [pid 5485] set_robust_list(0x555555d616a0, 24 [pid 5483] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5482] exit_group(0 [pid 5485] <... set_robust_list resumed>) = 0 [pid 5484] <... mprotect resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5485] chdir("./35" [pid 5483] <... futex resumed>) = ? [pid 5482] <... exit_group resumed>) = ? [pid 5057] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5486 attached [pid 5485] <... chdir resumed>) = 0 [pid 5484] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5483] +++ exited with 0 +++ [pid 5482] +++ exited with 0 +++ [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5486 [pid 5486] set_robust_list(0x555555d616a0, 24 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5482, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5486] <... set_robust_list resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5055] <... openat resumed>) = 3 [pid 5486] chdir("./35" [pid 5485] <... prctl resumed>) = 0 [pid 5484] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5486] <... chdir resumed>) = 0 [pid 5484] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] unlink("./33/binderfs" [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5485] setpgid(0, 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5485] <... setpgid resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5487 attached [pid 5486] setpgid(0, 0 [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] <... clone3 resumed> => {parent_tid=[5487]}, 88) = 5487 [pid 5055] close(3 [pid 5487] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5486] <... setpgid resumed>) = 0 [pid 5485] <... openat resumed>) = 3 [pid 5484] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] <... close resumed>) = 0 [pid 5487] <... rseq resumed>) = 0 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5484] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] getdents64(3, [pid 5487] set_robust_list(0x7f923ecf19a0, 24 [pid 5486] <... openat resumed>) = 3 [pid 5485] write(3, "1000", 4 [pid 5484] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5486] write(3, "1000", 4 [pid 5484] <... futex resumed>) = 0 [pid 5057] close(3 [pid 5486] <... write resumed>) = 4 [pid 5484] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... close resumed>) = 0 [pid 5057] rmdir("./33") = 0 [pid 5486] close(3 [pid 5057] mkdir("./34", 0777 [pid 5486] <... close resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5486] symlink("/dev/binderfs", "./binderfs" [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5486] <... symlink resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5486] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5486] <... futex resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] close(3) = 0 [pid 5486] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, ./strace-static-x86_64: Process 5488 attached [pid 5487] <... set_robust_list resumed>) = 0 [pid 5485] <... write resumed>) = 4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5488] set_robust_list(0x555555d616a0, 24 [pid 5058] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5488] <... set_robust_list resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5488 [pid 5488] chdir("./35" [pid 5058] <... openat resumed>) = 3 [pid 5488] <... chdir resumed>) = 0 [pid 5487] rt_sigprocmask(SIG_SETMASK, [], [pid 5485] close(3 [pid 5058] newfstatat(3, "", [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5486] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5485] <... close resumed>) = 0 ./strace-static-x86_64: Process 5489 attached [pid 5488] <... prctl resumed>) = 0 [pid 5487] memfd_create("syzkaller", 0 [pid 5486] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5485] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5488] setpgid(0, 0 [pid 5487] <... memfd_create resumed>) = 3 [pid 5486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5485] <... symlink resumed>) = 0 [pid 5058] getdents64(3, [pid 5489] set_robust_list(0x555555d616a0, 24 [pid 5488] <... setpgid resumed>) = 0 [pid 5487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5485] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5489 [pid 5489] <... set_robust_list resumed>) = 0 [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5487] <... mmap resumed>) = 0x7f92368d1000 [pid 5486] <... mmap resumed>) = 0x7f923ecd1000 [pid 5485] <... futex resumed>) = 0 [pid 5489] chdir("./34" [pid 5488] <... openat resumed>) = 3 [pid 5487] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5486] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5485] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5488] write(3, "1000", 4) = 4 [pid 5489] <... chdir resumed>) = 0 [pid 5488] close(3 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5488] <... close resumed>) = 0 [pid 5489] <... prctl resumed>) = 0 [pid 5488] symlink("/dev/binderfs", "./binderfs" [pid 5489] setpgid(0, 0 [pid 5488] <... symlink resumed>) = 0 [pid 5489] <... setpgid resumed>) = 0 [pid 5486] <... mprotect resumed>) = 0 [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5488] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5486] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5488] <... futex resumed>) = 0 [pid 5486] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5485] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5488] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5486] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5485] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5490 attached [pid 5489] <... openat resumed>) = 3 [pid 5488] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5487] <... write resumed>) = 524288 [pid 5485] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5490] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5488] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5490] <... rseq resumed>) = 0 [pid 5488] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5490] set_robust_list(0x7f923ecf19a0, 24 [pid 5488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5490] <... set_robust_list resumed>) = 0 [pid 5488] <... mmap resumed>) = 0x7f923ecd1000 [pid 5490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5490] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5488] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5488] <... mprotect resumed>) = 0 [pid 5485] <... mmap resumed>) = 0x7f923ecd1000 [pid 5489] write(3, "1000", 4 [pid 5486] <... clone3 resumed> => {parent_tid=[5490]}, 88) = 5490 [pid 5485] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5489] <... write resumed>) = 4 [pid 5486] rt_sigprocmask(SIG_SETMASK, [], [pid 5485] <... mprotect resumed>) = 0 [pid 5058] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5489] close(3 [pid 5485] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5489] <... close resumed>) = 0 [pid 5486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5485] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5489] symlink("/dev/binderfs", "./binderfs" [pid 5488] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5486] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5490] <... futex resumed>) = 0 [pid 5489] <... symlink resumed>) = 0 [pid 5488] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5486] <... futex resumed>) = 1 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5491 attached [pid 5490] memfd_create("syzkaller", 0 [pid 5489] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5488] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5486] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5485] <... clone3 resumed> => {parent_tid=[5491]}, 88) = 5491 [pid 5058] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5491] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5490] <... memfd_create resumed>) = 3 [pid 5489] <... futex resumed>) = 0 [pid 5487] munmap(0x7f92368d1000, 138412032 [pid 5485] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5492 attached [pid 5491] <... rseq resumed>) = 0 [pid 5490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5489] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5488] <... clone3 resumed> => {parent_tid=[5492]}, 88) = 5492 [pid 5487] <... munmap resumed>) = 0 [pid 5485] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5492] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5491] set_robust_list(0x7f923ecf19a0, 24 [pid 5490] <... mmap resumed>) = 0x7f92368d1000 [pid 5489] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5488] rt_sigprocmask(SIG_SETMASK, [], [pid 5485] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5492] <... rseq resumed>) = 0 [pid 5491] <... set_robust_list resumed>) = 0 [pid 5490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5489] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5488] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5487] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5485] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5492] set_robust_list(0x7f923ecf19a0, 24 [pid 5491] rt_sigprocmask(SIG_SETMASK, [], [pid 5489] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5488] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] newfstatat(4, "", [pid 5492] <... set_robust_list resumed>) = 0 [pid 5491] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5488] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5491] memfd_create("syzkaller", 0 [pid 5489] <... mmap resumed>) = 0x7f923ecd1000 [pid 5488] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5487] <... openat resumed>) = 4 [pid 5492] rt_sigprocmask(SIG_SETMASK, [], [pid 5491] <... memfd_create resumed>) = 3 [pid 5489] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5487] ioctl(4, LOOP_SET_FD, 3 [pid 5058] getdents64(4, [pid 5492] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5490] <... write resumed>) = 524288 [pid 5489] <... mprotect resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5490] munmap(0x7f92368d1000, 138412032 [pid 5487] <... ioctl resumed>) = 0 [pid 5058] getdents64(4, [pid 5492] memfd_create("syzkaller", 0 [pid 5491] <... mmap resumed>) = 0x7f92368d1000 [pid 5490] <... munmap resumed>) = 0 [pid 5489] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5487] close(3 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5490] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5489] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5487] <... close resumed>) = 0 [pid 5058] close(4 [pid 5492] <... memfd_create resumed>) = 3 [pid 5490] <... openat resumed>) = 4 [pid 5489] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5487] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... close resumed>) = 0 ./strace-static-x86_64: Process 5493 attached [pid 5492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5490] ioctl(4, LOOP_SET_FD, 3 [pid 5058] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5493] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5492] <... mmap resumed>) = 0x7f92368d1000 [pid 5491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5489] <... clone3 resumed> => {parent_tid=[5493]}, 88) = 5493 [pid 5487] <... mkdir resumed>) = 0 [pid 5493] <... rseq resumed>) = 0 [pid 5489] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5493] set_robust_list(0x7f923ecf19a0, 24 [pid 5490] <... ioctl resumed>) = 0 [pid 5489] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5493] <... set_robust_list resumed>) = 0 [pid 5489] <... futex resumed>) = 0 [pid 5487] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] rt_sigprocmask(SIG_SETMASK, [], [pid 5490] close(3 [pid 5489] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5493] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5491] <... write resumed>) = 524288 [pid 5490] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5493] memfd_create("syzkaller", 0 [pid 5491] munmap(0x7f92368d1000, 138412032 [pid 5490] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5493] <... memfd_create resumed>) = 3 [pid 5492] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5491] <... munmap resumed>) = 0 [pid 5490] <... mkdir resumed>) = 0 [pid 5058] unlink("./34/binderfs" [pid 5493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5487] <... mount resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5493] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] getdents64(3, [pid 5491] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5487] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5491] <... openat resumed>) = 4 [pid 5490] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] close(3 [pid 5491] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... close resumed>) = 0 [pid 5493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5492] <... write resumed>) = 524288 [pid 5487] <... openat resumed>) = 3 [pid 5487] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5492] munmap(0x7f92368d1000, 138412032 [pid 5487] ioctl(4, LOOP_CLR_FD [pid 5492] <... munmap resumed>) = 0 [pid 5487] <... ioctl resumed>) = 0 [pid 5058] rmdir("./34" [pid 5487] close(4) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5058] mkdir("./35", 0777) = 0 [pid 5492] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5492] <... openat resumed>) = 4 [pid 5491] <... ioctl resumed>) = 0 [pid 5490] <... mount resumed>) = 0 [pid 5487] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [ 73.022772][ T5487] loop4: detected capacity change from 0 to 1024 [ 73.039172][ T5490] loop1: detected capacity change from 0 to 1024 [ 73.061947][ T5491] loop5: detected capacity change from 0 to 1024 [pid 5492] ioctl(4, LOOP_SET_FD, 3 [pid 5490] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5487] <... futex resumed>) = 1 [pid 5484] <... futex resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5491] close(3 [pid 5484] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5491] <... close resumed>) = 0 [pid 5490] <... openat resumed>) = 3 [pid 5484] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5491] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5490] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5484] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] close(3 [pid 5490] <... chdir resumed>) = 0 [pid 5487] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5058] <... close resumed>) = 0 [pid 5491] <... mkdir resumed>) = 0 [pid 5490] ioctl(4, LOOP_CLR_FD [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5493] <... write resumed>) = 524288 [pid 5491] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5490] <... ioctl resumed>) = 0 [pid 5490] close(4 [pid 5487] <... mknod resumed>) = 0 [pid 5490] <... close resumed>) = 0 [pid 5490] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5486] <... futex resumed>) = 0 [pid 5486] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5493] munmap(0x7f92368d1000, 138412032 [pid 5490] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5487] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5486] <... futex resumed>) = 0 [pid 5493] <... munmap resumed>) = 0 [pid 5487] <... futex resumed>) = 1 [pid 5486] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5484] <... futex resumed>) = 0 [pid 5493] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5484] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5494 attached [pid 5493] <... openat resumed>) = 4 [pid 5487] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5484] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5494 [pid 5493] ioctl(4, LOOP_SET_FD, 3 [pid 5484] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] set_robust_list(0x555555d616a0, 24 [pid 5491] <... mount resumed>) = 0 [pid 5494] <... set_robust_list resumed>) = 0 [pid 5492] <... ioctl resumed>) = 0 [pid 5491] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5494] chdir("./35" [pid 5492] close(3 [pid 5491] <... openat resumed>) = 3 [pid 5490] <... mknod resumed>) = 0 [pid 5494] <... chdir resumed>) = 0 [pid 5492] <... close resumed>) = 0 [pid 5491] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5490] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5492] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5491] <... chdir resumed>) = 0 [pid 5490] <... futex resumed>) = 1 [pid 5486] <... futex resumed>) = 0 [pid 5494] <... prctl resumed>) = 0 [pid 5491] ioctl(4, LOOP_CLR_FD [pid 5490] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5486] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5490] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5491] <... ioctl resumed>) = 0 [pid 5490] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5486] <... futex resumed>) = 0 [pid 5494] setpgid(0, 0 [pid 5492] <... mkdir resumed>) = 0 [pid 5491] close(4 [pid 5490] <... open resumed>) = 4 [pid 5487] <... open resumed>) = 4 [pid 5486] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5491] <... close resumed>) = 0 [pid 5491] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] <... setpgid resumed>) = 0 [pid 5492] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5491] <... futex resumed>) = 1 [pid 5487] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] <... futex resumed>) = 0 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5491] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5487] <... futex resumed>) = 1 [pid 5485] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5484] <... futex resumed>) = 0 [pid 5490] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5487] sync( [pid 5485] <... futex resumed>) = 0 [pid 5484] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5484] <... futex resumed>) = 0 [pid 5494] <... openat resumed>) = 3 [pid 5493] <... ioctl resumed>) = 0 [pid 5490] <... futex resumed>) = 1 [pid 5486] <... futex resumed>) = 0 [pid 5484] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5493] close(3 [pid 5486] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5493] <... close resumed>) = 0 [pid 5493] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5486] <... futex resumed>) = 0 [pid 5486] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] write(3, "1000", 4 [pid 5492] <... mount resumed>) = 0 [pid 5493] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5494] <... write resumed>) = 4 [pid 5494] close(3 [pid 5490] sync( [pid 5494] <... close resumed>) = 0 [pid 5491] <... mknod resumed>) = 0 [pid 5494] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5492] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5491] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] <... openat resumed>) = 3 [pid 5491] <... futex resumed>) = 1 [pid 5485] <... futex resumed>) = 0 [pid 5494] <... futex resumed>) = 0 [pid 5493] <... mount resumed>) = 0 [pid 5492] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5491] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5485] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5493] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5492] <... chdir resumed>) = 0 [pid 5493] <... openat resumed>) = 3 [pid 5492] ioctl(4, LOOP_CLR_FD [pid 5494] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5485] <... futex resumed>) = 0 [pid 5494] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5493] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5492] <... ioctl resumed>) = 0 [pid 5485] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5493] <... chdir resumed>) = 0 [pid 5492] close(4 [pid 5494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5493] ioctl(4, LOOP_CLR_FD [pid 5492] <... close resumed>) = 0 [pid 5494] <... mmap resumed>) = 0x7f923ecd1000 [ 73.078152][ T5492] loop0: detected capacity change from 0 to 1024 [ 73.101574][ T5493] loop2: detected capacity change from 0 to 1024 [pid 5493] <... ioctl resumed>) = 0 [pid 5492] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5493] close(4 [pid 5492] <... futex resumed>) = 1 [pid 5488] <... futex resumed>) = 0 [pid 5494] <... mprotect resumed>) = 0 [pid 5493] <... close resumed>) = 0 [pid 5492] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5488] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5493] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5493] <... futex resumed>) = 1 [pid 5492] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5489] <... futex resumed>) = 0 [pid 5494] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5493] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5489] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5488] <... futex resumed>) = 0 [pid 5494] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5489] <... futex resumed>) = 0 [pid 5488] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5491] <... open resumed>) = 4 [pid 5489] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5495 attached [pid 5493] <... mknod resumed>) = 0 [pid 5491] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5495] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5494] <... clone3 resumed> => {parent_tid=[5495]}, 88) = 5495 [pid 5493] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] <... mknod resumed>) = 0 [pid 5491] <... futex resumed>) = 1 [pid 5485] <... futex resumed>) = 0 [pid 5495] <... rseq resumed>) = 0 [pid 5494] rt_sigprocmask(SIG_SETMASK, [], [pid 5493] <... futex resumed>) = 1 [pid 5492] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5491] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5489] <... futex resumed>) = 0 [pid 5485] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5495] set_robust_list(0x7f923ecf19a0, 24 [pid 5494] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5493] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5492] <... futex resumed>) = 1 [pid 5491] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5489] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5488] <... futex resumed>) = 0 [pid 5485] <... futex resumed>) = 0 [pid 5490] <... sync resumed>) = 0 [pid 5487] <... sync resumed>) = 0 [pid 5495] <... set_robust_list resumed>) = 0 [pid 5494] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5491] sync( [pid 5489] <... futex resumed>) = 0 [pid 5488] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5487] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5495] rt_sigprocmask(SIG_SETMASK, [], [pid 5494] <... futex resumed>) = 0 [pid 5493] <... open resumed>) = 4 [pid 5490] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5489] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5488] <... futex resumed>) = 0 [pid 5487] <... futex resumed>) = 1 [pid 5484] <... futex resumed>) = 0 [pid 5495] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5494] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5490] <... futex resumed>) = 1 [pid 5486] <... futex resumed>) = 0 [pid 5495] memfd_create("syzkaller", 0 [pid 5493] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5492] <... open resumed>) = 4 [pid 5490] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5488] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5487] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5486] exit_group(0 [pid 5484] exit_group(0 [pid 5486] <... exit_group resumed>) = ? [pid 5495] <... memfd_create resumed>) = 3 [pid 5493] <... futex resumed>) = 1 [pid 5490] <... futex resumed>) = ? [pid 5489] <... futex resumed>) = 0 [pid 5487] <... futex resumed>) = ? [pid 5484] <... exit_group resumed>) = ? [pid 5495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5493] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5487] +++ exited with 0 +++ [pid 5484] +++ exited with 0 +++ [pid 5489] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5495] <... mmap resumed>) = 0x7f92368d1000 [pid 5493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5489] <... futex resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5484, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5493] sync( [pid 5490] +++ exited with 0 +++ [pid 5486] +++ exited with 0 +++ [pid 5059] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5486, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5489] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5059] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5492] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5492] <... futex resumed>) = 1 [pid 5488] <... futex resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5492] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5488] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] newfstatat(3, "", [pid 5492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5488] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5492] sync( [pid 5488] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5485] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5491] <... sync resumed>) = 0 [pid 5491] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5491] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5495] <... write resumed>) = 524288 [pid 5493] <... sync resumed>) = 0 [pid 5492] <... sync resumed>) = 0 [pid 5485] exit_group(0 [pid 5491] <... futex resumed>) = ? [pid 5485] <... exit_group resumed>) = ? [pid 5491] +++ exited with 0 +++ [pid 5492] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5493] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5495] munmap(0x7f92368d1000, 138412032 [pid 5493] <... futex resumed>) = 1 [pid 5492] <... futex resumed>) = 1 [pid 5489] <... futex resumed>) = 0 [pid 5488] <... futex resumed>) = 0 [pid 5495] <... munmap resumed>) = 0 [pid 5493] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5492] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5489] exit_group(0 [pid 5488] exit_group(0) = ? [pid 5495] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5493] <... futex resumed>) = ? [pid 5489] <... exit_group resumed>) = ? [pid 5495] <... openat resumed>) = 4 [pid 5492] <... futex resumed>) = ? [pid 5485] +++ exited with 0 +++ [pid 5056] <... umount2 resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5060] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5493] +++ exited with 0 +++ [pid 5495] ioctl(4, LOOP_SET_FD, 3 [pid 5492] +++ exited with 0 +++ [pid 5489] +++ exited with 0 +++ [pid 5488] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5488, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5060] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5060] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(4, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5495] <... ioctl resumed>) = 0 [pid 5060] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5495] close(3 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5495] <... close resumed>) = 0 [pid 5060] close(4 [pid 5059] <... umount2 resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5495] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] <... close resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5495] <... mkdir resumed>) = 0 [pid 5060] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... openat resumed>) = 4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(3, "", [pid 5056] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5495] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5055] newfstatat(4, "", [pid 5060] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] getdents64(3, [pid 5056] newfstatat(4, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(4, [pid 5060] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5055] getdents64(4, [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] unlink("./35/binderfs" [pid 5056] getdents64(4, [pid 5055] close(4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5495] <... mount resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5495] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] getdents64(3, [ 73.268248][ T5495] loop3: detected capacity change from 0 to 1024 [pid 5056] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... openat resumed>) = 4 [pid 5495] <... openat resumed>) = 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(4, "", [pid 5056] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5495] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] close(3 [pid 5055] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5495] <... chdir resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] unlink("./35/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5495] ioctl(4, LOOP_CLR_FD [pid 5060] rmdir("./35" [pid 5055] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5495] <... ioctl resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(3, [pid 5059] close(4 [pid 5495] close(4) = 0 [pid 5495] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] unlink("./35/binderfs" [pid 5495] <... futex resumed>) = 1 [pid 5494] <... futex resumed>) = 0 [pid 5495] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5494] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... unlink resumed>) = 0 [pid 5494] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5494] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] mkdir("./36", 0777 [pid 5055] getdents64(3, [pid 5060] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5055] close(3) = 0 [pid 5055] rmdir("./35" [pid 5059] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... rmdir resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5495] <... mknod resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] <... rmdir resumed>) = 0 [pid 5055] mkdir("./36", 0777 [pid 5060] <... openat resumed>) = 3 [pid 5055] <... mkdir resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5495] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5495] <... futex resumed>) = 1 [pid 5494] <... futex resumed>) = 0 [pid 5494] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5494] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5060] close(3 [pid 5055] <... close resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... umount2 resumed>) = 0 [pid 5059] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5496 attached [pid 5495] <... open resumed>) = 4 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./35"./strace-static-x86_64: Process 5497 attached [pid 5496] set_robust_list(0x555555d616a0, 24 [pid 5497] set_robust_list(0x555555d616a0, 24 [pid 5496] <... set_robust_list resumed>) = 0 [pid 5497] <... set_robust_list resumed>) = 0 [pid 5496] chdir("./36" [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5496 [pid 5497] chdir("./36" [pid 5496] <... chdir resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5056] <... rmdir resumed>) = 0 [pid 5497] <... chdir resumed>) = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5497 [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] <... prctl resumed>) = 0 [pid 5495] <... futex resumed>) = 1 [pid 5494] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] mkdir("./36", 0777 [pid 5497] <... prctl resumed>) = 0 [pid 5496] setpgid(0, 0 [pid 5495] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5494] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] unlink("./34/binderfs" [pid 5497] setpgid(0, 0 [pid 5496] <... setpgid resumed>) = 0 [pid 5495] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5494] <... futex resumed>) = 0 [pid 5497] <... setpgid resumed>) = 0 [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] sync( [pid 5494] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] <... openat resumed>) = 3 [pid 5059] <... unlink resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5497] <... openat resumed>) = 3 [pid 5496] write(3, "1000", 4 [pid 5059] getdents64(3, [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5496] <... write resumed>) = 4 [pid 5497] write(3, "1000", 4 [pid 5496] close(3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5497] <... write resumed>) = 4 [pid 5496] <... close resumed>) = 0 [pid 5497] close(3 [pid 5496] symlink("/dev/binderfs", "./binderfs" [pid 5059] close(3 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5497] <... close resumed>) = 0 [pid 5496] <... symlink resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5497] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(3 [pid 5059] rmdir("./34" [pid 5056] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5496] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5496] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, ./strace-static-x86_64: Process 5498 attached [pid 5497] <... symlink resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] mkdir("./35", 0777 [pid 5495] <... sync resumed>) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5498 [pid 5495] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] set_robust_list(0x555555d616a0, 24 [pid 5497] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5495] <... futex resumed>) = 1 [pid 5494] <... futex resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5497] <... futex resumed>) = 0 [pid 5495] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5494] exit_group(0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5498] <... set_robust_list resumed>) = 0 [pid 5497] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5496] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5495] <... futex resumed>) = ? [pid 5494] <... exit_group resumed>) = ? [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5495] +++ exited with 0 +++ [pid 5494] +++ exited with 0 +++ [pid 5059] <... openat resumed>) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5498] chdir("./36" [pid 5497] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5496] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5494, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5057] umount2("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] <... chdir resumed>) = 0 [pid 5497] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5497] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5498] <... prctl resumed>) = 0 [pid 5497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5498] setpgid(0, 0 [pid 5497] <... mmap resumed>) = 0x7f923ecd1000 [pid 5496] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] newfstatat(4, "", [pid 5498] <... setpgid resumed>) = 0 [pid 5497] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5496] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5497] <... mprotect resumed>) = 0 [pid 5496] <... mprotect resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5498] <... openat resumed>) = 3 [pid 5497] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5496] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5498] write(3, "1000", 4 [pid 5497] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5496] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] getdents64(4, [pid 5498] <... write resumed>) = 4 [pid 5497] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5496] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] newfstatat(3, "", [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5501 attached ./strace-static-x86_64: Process 5500 attached [pid 5498] close(3 [pid 5057] close(4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5499 attached [pid 5501] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5500] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5498] <... close resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5499 [pid 5058] getdents64(3, [pid 5499] set_robust_list(0x555555d616a0, 24) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5499] chdir("./35" [pid 5058] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... close resumed>) = 0 [pid 5501] <... rseq resumed>) = 0 [pid 5500] <... rseq resumed>) = 0 [pid 5499] <... chdir resumed>) = 0 [pid 5498] symlink("/dev/binderfs", "./binderfs" [pid 5497] <... clone3 resumed> => {parent_tid=[5500]}, 88) = 5500 [pid 5496] <... clone3 resumed> => {parent_tid=[5501]}, 88) = 5501 [pid 5057] rmdir("./34/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5498] <... symlink resumed>) = 0 [pid 5497] rt_sigprocmask(SIG_SETMASK, [], [pid 5496] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... rmdir resumed>) = 0 [pid 5501] set_robust_list(0x7f923ecf19a0, 24 [pid 5500] set_robust_list(0x7f923ecf19a0, 24 [pid 5497] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5496] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5501] <... set_robust_list resumed>) = 0 [pid 5500] <... set_robust_list resumed>) = 0 [pid 5498] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5497] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5499] <... prctl resumed>) = 0 [pid 5501] rt_sigprocmask(SIG_SETMASK, [], [pid 5500] rt_sigprocmask(SIG_SETMASK, [], [pid 5499] setpgid(0, 0 [pid 5498] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = 0 [pid 5496] <... futex resumed>) = 0 [pid 5057] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5501] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5500] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5499] <... setpgid resumed>) = 0 [pid 5498] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] <... umount2 resumed>) = 0 [pid 5501] memfd_create("syzkaller", 0 [pid 5500] memfd_create("syzkaller", 0 [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5498] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5497] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5496] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5500] <... memfd_create resumed>) = 3 [pid 5498] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5499] <... openat resumed>) = 3 [pid 5058] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5498] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./34/binderfs" [pid 5500] <... mmap resumed>) = 0x7f92368d1000 [pid 5498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5501] <... memfd_create resumed>) = 3 [pid 5500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5499] write(3, "1000", 4 [pid 5498] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5499] <... write resumed>) = 4 [pid 5498] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... unlink resumed>) = 0 [pid 5501] <... mmap resumed>) = 0x7f92368d1000 [pid 5499] close(3 [pid 5498] <... mprotect resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] getdents64(3, [pid 5499] <... close resumed>) = 0 [pid 5498] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5499] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... openat resumed>) = 4 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5499] <... symlink resumed>) = 0 [pid 5498] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] newfstatat(4, "", [pid 5498] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] close(3./strace-static-x86_64: Process 5502 attached ) = 0 [pid 5501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5499] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] <... clone3 resumed> => {parent_tid=[5502]}, 88) = 5502 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5499] <... futex resumed>) = 0 [pid 5498] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(4, [pid 5499] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5502] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5498] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] rmdir("./34" [pid 5502] <... rseq resumed>) = 0 [pid 5499] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5498] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... rmdir resumed>) = 0 [pid 5502] set_robust_list(0x7f923ecf19a0, 24 [pid 5499] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5498] <... futex resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] mkdir("./35", 0777 [pid 5499] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5498] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5499] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] close(4 [pid 5502] rt_sigprocmask(SIG_SETMASK, [], [pid 5499] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5502] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5499] <... mprotect resumed>) = 0 [pid 5058] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... openat resumed>) = 3 [pid 5502] memfd_create("syzkaller", 0 [pid 5501] <... write resumed>) = 524288 [pid 5500] <... write resumed>) = 524288 [pid 5499] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5502] <... memfd_create resumed>) = 3 [pid 5499] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5499] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5503 attached [pid 5502] <... mmap resumed>) = 0x7f92368d1000 [pid 5501] munmap(0x7f92368d1000, 138412032 [pid 5500] munmap(0x7f92368d1000, 138412032 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5501] <... munmap resumed>) = 0 [pid 5057] close(3 [pid 5500] <... munmap resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5499] <... clone3 resumed> => {parent_tid=[5503]}, 88) = 5503 [pid 5503] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5500] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5499] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5504 attached [pid 5503] <... rseq resumed>) = 0 [pid 5501] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5500] <... openat resumed>) = 4 [pid 5058] unlink("./35/binderfs" [pid 5504] set_robust_list(0x555555d616a0, 24 [pid 5502] <... write resumed>) = 524288 [pid 5501] <... openat resumed>) = 4 [pid 5500] ioctl(4, LOOP_SET_FD, 3 [pid 5499] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5504 [pid 5504] <... set_robust_list resumed>) = 0 [pid 5503] set_robust_list(0x7f923ecf19a0, 24 [pid 5499] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... unlink resumed>) = 0 [pid 5499] <... futex resumed>) = 0 [pid 5499] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5503] <... set_robust_list resumed>) = 0 [pid 5503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5058] getdents64(3, [pid 5503] memfd_create("syzkaller", 0 [pid 5504] chdir("./35" [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5504] <... chdir resumed>) = 0 [pid 5503] <... memfd_create resumed>) = 3 [pid 5501] ioctl(4, LOOP_SET_FD, 3 [pid 5058] close(3 [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5501] <... ioctl resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5504] <... prctl resumed>) = 0 [pid 5503] <... mmap resumed>) = 0x7f92368d1000 [pid 5502] munmap(0x7f92368d1000, 138412032 [pid 5501] close(3 [pid 5500] <... ioctl resumed>) = 0 [pid 5058] rmdir("./35" [pid 5504] setpgid(0, 0 [pid 5502] <... munmap resumed>) = 0 [pid 5501] <... close resumed>) = 0 [pid 5500] close(3 [pid 5504] <... setpgid resumed>) = 0 [pid 5502] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5501] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5500] <... close resumed>) = 0 [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] <... openat resumed>) = 4 [pid 5501] <... mkdir resumed>) = 0 [pid 5500] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... rmdir resumed>) = 0 [pid 5504] <... openat resumed>) = 3 [pid 5503] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5502] ioctl(4, LOOP_SET_FD, 3 [pid 5058] mkdir("./36", 0777 [pid 5504] write(3, "1000", 4 [pid 5503] <... write resumed>) = 524288 [pid 5502] <... ioctl resumed>) = 0 [pid 5501] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5500] <... mkdir resumed>) = 0 [pid 5504] <... write resumed>) = 4 [pid 5502] close(3 [pid 5504] close(3 [pid 5502] <... close resumed>) = 0 [pid 5504] <... close resumed>) = 0 [pid 5503] munmap(0x7f92368d1000, 138412032 [pid 5502] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5504] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5503] <... munmap resumed>) = 0 [pid 5502] <... mkdir resumed>) = 0 [pid 5500] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5504] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5503] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... mkdir resumed>) = 0 [pid 5504] <... futex resumed>) = 0 [pid 5502] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5504] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5503] <... openat resumed>) = 4 [pid 5058] <... openat resumed>) = 3 [pid 5504] <... rt_sigaction resumed>NULL, 8) = 0 [ 73.506626][ T5500] loop5: detected capacity change from 0 to 1024 [ 73.513855][ T5501] loop0: detected capacity change from 0 to 1024 [ 73.539958][ T5502] loop1: detected capacity change from 0 to 1024 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5504] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5503] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5504] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5502] <... mount resumed>) = 0 [pid 5504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5502] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5504] <... mmap resumed>) = 0x7f923ecd1000 [pid 5502] <... openat resumed>) = 3 [pid 5502] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5504] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5502] ioctl(4, LOOP_CLR_FD) = 0 [pid 5504] <... mprotect resumed>) = 0 [pid 5502] close(4 [pid 5504] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5502] <... close resumed>) = 0 [pid 5502] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5504] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5502] <... futex resumed>) = 1 [pid 5498] <... futex resumed>) = 0 [pid 5504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5502] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5498] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5498] <... futex resumed>) = 0 [pid 5502] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5498] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5505 attached [pid 5058] close(3 [pid 5505] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5504] <... clone3 resumed> => {parent_tid=[5505]}, 88) = 5505 [pid 5058] <... close resumed>) = 0 [pid 5505] <... rseq resumed>) = 0 [pid 5504] rt_sigprocmask(SIG_SETMASK, [], [pid 5502] <... mknod resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5505] set_robust_list(0x7f923ecf19a0, 24 [pid 5504] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5500] <... mount resumed>) = 0 [pid 5505] <... set_robust_list resumed>) = 0 [pid 5504] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5505] rt_sigprocmask(SIG_SETMASK, [], [pid 5504] <... futex resumed>) = 0 [pid 5504] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5500] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5505] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5505] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5506 attached ) = 3 [pid 5503] <... ioctl resumed>) = 0 [pid 5502] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5501] <... mount resumed>) = 0 [pid 5500] <... openat resumed>) = 3 [pid 5506] set_robust_list(0x555555d616a0, 24 [pid 5505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5503] close(3 [pid 5502] <... futex resumed>) = 1 [pid 5501] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5500] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5498] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5506 [pid 5506] <... set_robust_list resumed>) = 0 [pid 5505] <... mmap resumed>) = 0x7f92368d1000 [pid 5503] <... close resumed>) = 0 [pid 5502] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5501] <... openat resumed>) = 3 [pid 5500] <... chdir resumed>) = 0 [pid 5498] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] chdir("./36" [pid 5503] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5501] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5500] ioctl(4, LOOP_CLR_FD [pid 5498] <... futex resumed>) = 0 [pid 5506] <... chdir resumed>) = 0 [pid 5503] <... mkdir resumed>) = 0 [pid 5502] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5501] <... chdir resumed>) = 0 [pid 5500] <... ioctl resumed>) = 0 [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5501] ioctl(4, LOOP_CLR_FD [pid 5500] close(4 [pid 5498] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5506] <... prctl resumed>) = 0 [pid 5501] <... ioctl resumed>) = 0 [pid 5500] <... close resumed>) = 0 [pid 5506] setpgid(0, 0 [pid 5503] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5501] close(4 [pid 5500] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... setpgid resumed>) = 0 [pid 5501] <... close resumed>) = 0 [pid 5500] <... futex resumed>) = 1 [pid 5497] <... futex resumed>) = 0 [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5506] <... openat resumed>) = 3 [pid 5502] <... open resumed>) = 4 [pid 5501] <... futex resumed>) = 1 [pid 5500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5497] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5502] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5501] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5500] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5497] <... futex resumed>) = 0 [pid 5496] <... futex resumed>) = 0 [pid 5506] write(3, "1000", 4 [pid 5502] <... futex resumed>) = 1 [pid 5498] <... futex resumed>) = 0 [pid 5496] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... write resumed>) = 4 [pid 5502] sync( [pid 5501] <... futex resumed>) = 0 [pid 5500] <... mknod resumed>) = 0 [pid 5498] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5497] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5496] <... futex resumed>) = 1 [pid 5506] close(3 [pid 5501] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5500] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] <... futex resumed>) = 0 [pid 5496] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5506] <... close resumed>) = 0 [pid 5500] <... futex resumed>) = 0 [pid 5506] symlink("/dev/binderfs", "./binderfs" [pid 5500] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5506] <... symlink resumed>) = 0 [pid 5498] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5503] <... mount resumed>) = 0 [pid 5497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5506] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5503] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5497] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... futex resumed>) = 0 [pid 5503] <... openat resumed>) = 3 [pid 5506] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5503] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5500] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = 1 [pid 5506] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5503] <... chdir resumed>) = 0 [pid 5500] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5497] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5506] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5503] ioctl(4, LOOP_CLR_FD [pid 5501] <... mknod resumed>) = 0 [ 73.558156][ T5503] loop4: detected capacity change from 0 to 1024 [pid 5506] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5503] <... ioctl resumed>) = 0 [pid 5500] <... open resumed>) = 4 [pid 5506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5503] close(4 [pid 5501] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... mmap resumed>) = 0x7f923ecd1000 [pid 5505] <... write resumed>) = 524288 [pid 5503] <... close resumed>) = 0 [pid 5501] <... futex resumed>) = 1 [pid 5496] <... futex resumed>) = 0 [pid 5506] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5505] munmap(0x7f92368d1000, 138412032 [pid 5503] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5500] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... mprotect resumed>) = 0 [pid 5505] <... munmap resumed>) = 0 [pid 5503] <... futex resumed>) = 1 [pid 5500] <... futex resumed>) = 1 [pid 5499] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = 0 [pid 5496] <... futex resumed>) = 0 [pid 5506] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5505] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5503] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5500] sync( [pid 5499] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5497] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5506] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5505] <... openat resumed>) = 4 [pid 5501] <... open resumed>) = 4 [pid 5499] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = 0 [pid 5506] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5499] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5497] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5507 attached [pid 5505] ioctl(4, LOOP_SET_FD, 3 [pid 5503] <... mknod resumed>) = 0 [pid 5501] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5507] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5506] <... clone3 resumed> => {parent_tid=[5507]}, 88) = 5507 [pid 5506] rt_sigprocmask(SIG_SETMASK, [], [pid 5503] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5506] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5503] <... futex resumed>) = 1 [pid 5499] <... futex resumed>) = 0 [pid 5506] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5503] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5499] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5507] set_robust_list(0x7f923ecf19a0, 24 [pid 5506] <... futex resumed>) = 0 [pid 5505] <... ioctl resumed>) = 0 [pid 5501] <... futex resumed>) = 1 [pid 5498] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5496] <... futex resumed>) = 0 [pid 5501] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5496] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5507] <... set_robust_list resumed>) = 0 [pid 5496] <... futex resumed>) = 0 [pid 5507] rt_sigprocmask(SIG_SETMASK, [], [pid 5501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5496] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5507] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5505] close(3 [pid 5501] sync( [pid 5507] memfd_create("syzkaller", 0 [pid 5506] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5505] <... close resumed>) = 0 [pid 5499] <... futex resumed>) = 0 [pid 5505] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5499] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5507] <... memfd_create resumed>) = 3 [pid 5507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5505] <... mkdir resumed>) = 0 [pid 5507] <... mmap resumed>) = 0x7f92368d1000 [pid 5503] <... open resumed>) = 4 [pid 5502] <... sync resumed>) = 0 [pid 5503] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5502] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] exit_group(0 [pid 5502] <... futex resumed>) = 0 [pid 5502] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5498] <... exit_group resumed>) = ? [pid 5502] <... futex resumed>) = ? [pid 5503] <... futex resumed>) = 1 [pid 5502] +++ exited with 0 +++ [pid 5499] <... futex resumed>) = 0 [pid 5505] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5503] sync( [pid 5499] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5499] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5498] +++ exited with 0 +++ [pid 5505] <... mount resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5498, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5505] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5503] <... sync resumed>) = 0 [pid 5501] <... sync resumed>) = 0 [pid 5500] <... sync resumed>) = 0 [pid 5505] <... openat resumed>) = 3 [pid 5503] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5501] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5497] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5056] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] <... write resumed>) = 524288 [pid 5505] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5503] <... futex resumed>) = 1 [pid 5499] <... futex resumed>) = 0 [pid 5497] exit_group(0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] <... chdir resumed>) = 0 [pid 5500] <... futex resumed>) = 0 [pid 5505] ioctl(4, LOOP_CLR_FD [pid 5501] <... futex resumed>) = 1 [pid 5499] exit_group(0 [pid 5497] <... exit_group resumed>) = ? [pid 5496] <... futex resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5505] <... ioctl resumed>) = 0 [pid 5501] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5500] +++ exited with 0 +++ [pid 5499] <... exit_group resumed>) = ? [pid 5497] +++ exited with 0 +++ [pid 5496] exit_group(0 [pid 5056] <... openat resumed>) = 3 [ 73.646606][ T5505] loop2: detected capacity change from 0 to 1024 [pid 5505] close(4 [pid 5501] <... futex resumed>) = ? [pid 5496] <... exit_group resumed>) = ? [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] newfstatat(3, "", [pid 5505] <... close resumed>) = 0 [pid 5503] +++ exited with 0 +++ [pid 5501] +++ exited with 0 +++ [pid 5499] +++ exited with 0 +++ [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5505] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5499, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] getdents64(3, [pid 5505] <... futex resumed>) = 1 [pid 5504] <... futex resumed>) = 0 [pid 5060] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5505] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5504] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] munmap(0x7f92368d1000, 138412032 [pid 5505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5504] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5507] <... munmap resumed>) = 0 [pid 5505] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5504] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5060] newfstatat(3, "", [pid 5059] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5059] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5059] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5507] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5507] <... openat resumed>) = 4 [pid 5060] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... umount2 resumed>) = 0 [pid 5056] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] <... mknod resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 4 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5056] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] newfstatat(3, "", [pid 5056] getdents64(4, [pid 5505] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(4) = 0 [pid 5056] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] getdents64(3, [pid 5505] <... futex resumed>) = 1 [pid 5056] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5504] <... futex resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./36/binderfs" [pid 5507] <... ioctl resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5056] getdents64(3, [pid 5507] close(3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5507] <... close resumed>) = 0 [pid 5056] close(3 [pid 5507] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./36" [pid 5504] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... rmdir resumed>) = 0 [pid 5056] mkdir("./37", 0777 [pid 5505] <... futex resumed>) = 0 [pid 5504] <... futex resumed>) = 1 [pid 5060] <... umount2 resumed>) = 0 [pid 5505] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5504] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5505] <... open resumed>) = 4 [pid 5060] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5059] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] <... mount resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5505] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5505] <... futex resumed>) = 1 [pid 5504] <... futex resumed>) = 0 [pid 5507] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5505] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5504] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 73.727232][ T5507] loop3: detected capacity change from 0 to 1024 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5507] <... openat resumed>) = 3 [pid 5505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5504] <... futex resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5507] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5060] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5507] ioctl(4, LOOP_CLR_FD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5507] <... ioctl resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] <... openat resumed>) = 4 [pid 5507] close(4) = 0 [pid 5056] close(3) = 0 [pid 5507] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] newfstatat(4, "", [pid 5507] <... futex resumed>) = 1 [pid 5506] <... futex resumed>) = 0 [pid 5506] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5506] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5508 attached [pid 5507] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5505] sync( [pid 5504] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5508] set_robust_list(0x555555d616a0, 24 [pid 5507] <... mknod resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5508] <... set_robust_list resumed>) = 0 [pid 5507] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5508] chdir("./37" [pid 5507] <... futex resumed>) = 1 [pid 5506] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5055] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5508] <... chdir resumed>) = 0 [pid 5507] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5506] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5508 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5506] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5059] newfstatat(4, "", [pid 5055] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5508] <... prctl resumed>) = 0 [pid 5507] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5506] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5508] setpgid(0, 0 [pid 5055] <... openat resumed>) = 4 [pid 5508] <... setpgid resumed>) = 0 [pid 5060] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] getdents64(4, [pid 5055] newfstatat(4, "", [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5508] <... openat resumed>) = 3 [pid 5060] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] getdents64(4, [pid 5508] write(3, "1000", 4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] close(4 [pid 5508] <... write resumed>) = 4 [pid 5060] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5059] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5508] close(3 [pid 5507] <... open resumed>) = 4 [pid 5505] <... sync resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] getdents64(4, [pid 5508] <... close resumed>) = 0 [pid 5060] unlink("./36/binderfs" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5508] symlink("/dev/binderfs", "./binderfs" [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] close(4 [pid 5508] <... symlink resumed>) = 0 [pid 5505] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5504] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5059] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5507] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5505] <... futex resumed>) = 0 [pid 5504] exit_group(0 [pid 5060] getdents64(3, [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5508] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5504] <... exit_group resumed>) = ? [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5055] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5506] <... futex resumed>) = 0 [pid 5508] <... futex resumed>) = 0 [pid 5507] <... futex resumed>) = 1 [pid 5506] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5508] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5506] <... futex resumed>) = 0 [pid 5059] unlink("./35/binderfs" [pid 5055] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5508] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5507] sync( [pid 5506] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] close(3 [pid 5059] <... unlink resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5508] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5505] +++ exited with 0 +++ [pid 5504] +++ exited with 0 +++ [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5055] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5508] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] rmdir("./36" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5504, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5059] close(3 [pid 5055] unlink("./36/binderfs" [pid 5508] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] <... close resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5508] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... rmdir resumed>) = 0 [pid 5059] rmdir("./35" [pid 5057] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5508] <... mprotect resumed>) = 0 [pid 5060] mkdir("./37", 0777 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] mkdir("./36", 0777 [pid 5057] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] close(3 [pid 5508] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... openat resumed>) = 3 [pid 5508] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5055] <... close resumed>) = 0 [pid 5508] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./36"./strace-static-x86_64: Process 5509 attached [pid 5060] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5057] getdents64(3, [pid 5509] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5508] <... clone3 resumed> => {parent_tid=[5509]}, 88) = 5509 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5509] <... rseq resumed>) = 0 [pid 5508] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... rmdir resumed>) = 0 [pid 5509] set_robust_list(0x7f923ecf19a0, 24 [pid 5508] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] close(3 [pid 5059] close(3 [pid 5057] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] mkdir("./37", 0777 [pid 5509] <... set_robust_list resumed>) = 0 [pid 5508] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5507] <... sync resumed>) = 0 [pid 5509] rt_sigprocmask(SIG_SETMASK, [], [pid 5508] <... futex resumed>) = 0 [pid 5507] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... mkdir resumed>) = 0 [pid 5509] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5508] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5507] <... futex resumed>) = 1 [pid 5506] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5511 attached ./strace-static-x86_64: Process 5510 attached [pid 5509] memfd_create("syzkaller", 0 [pid 5507] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5506] exit_group(0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5511] set_robust_list(0x555555d616a0, 24 [pid 5510] set_robust_list(0x555555d616a0, 24 [pid 5506] <... exit_group resumed>) = ? [pid 5509] <... memfd_create resumed>) = 3 [pid 5507] <... futex resumed>) = ? [pid 5055] <... openat resumed>) = 3 [pid 5509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5507] +++ exited with 0 +++ [pid 5506] +++ exited with 0 +++ [pid 5509] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5506, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5511] <... set_robust_list resumed>) = 0 [pid 5510] <... set_robust_list resumed>) = 0 [pid 5509] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5510 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5511 [pid 5058] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5511] chdir("./36" [pid 5510] chdir("./37") = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] close(3 [pid 5510] <... prctl resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... openat resumed>) = 3 [pid 5511] <... chdir resumed>) = 0 [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] newfstatat(3, "", [pid 5511] <... prctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5511] setpgid(0, 0 [pid 5058] getdents64(3, ./strace-static-x86_64: Process 5512 attached [pid 5511] <... setpgid resumed>) = 0 [pid 5510] setpgid(0, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5512] set_robust_list(0x555555d616a0, 24 [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5510] <... setpgid resumed>) = 0 [pid 5058] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] <... set_robust_list resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5512 [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5512] chdir("./37" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5510] <... openat resumed>) = 3 [pid 5512] <... chdir resumed>) = 0 [pid 5057] umount2("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] write(3, "1000", 4 [pid 5512] <... prctl resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5510] <... write resumed>) = 4 [pid 5512] setpgid(0, 0 [pid 5057] openat(AT_FDCWD, "./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5512] <... setpgid resumed>) = 0 [pid 5510] close(3 [pid 5511] <... openat resumed>) = 3 [pid 5510] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5511] write(3, "1000", 4 [pid 5510] symlink("/dev/binderfs", "./binderfs" [pid 5057] newfstatat(4, "", [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5511] <... write resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5510] <... symlink resumed>) = 0 [pid 5509] <... write resumed>) = 524288 [pid 5058] <... umount2 resumed>) = 0 [pid 5512] <... openat resumed>) = 3 [pid 5509] munmap(0x7f92368d1000, 138412032 [pid 5510] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5512] write(3, "1000", 4 [pid 5510] <... futex resumed>) = 0 [pid 5057] getdents64(4, [pid 5512] <... write resumed>) = 4 [pid 5511] close(3 [pid 5510] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5509] <... munmap resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5512] close(3 [pid 5511] <... close resumed>) = 0 [pid 5510] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] getdents64(4, [pid 5512] <... close resumed>) = 0 [pid 5511] symlink("/dev/binderfs", "./binderfs" [pid 5510] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5512] symlink("/dev/binderfs", "./binderfs" [pid 5510] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] close(4) = 0 [pid 5057] rmdir("./35/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5510] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5509] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5512] <... symlink resumed>) = 0 [pid 5511] <... symlink resumed>) = 0 [pid 5510] <... mmap resumed>) = 0x7f923ecd1000 [pid 5509] <... openat resumed>) = 4 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5510] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5509] ioctl(4, LOOP_SET_FD, 3 [pid 5058] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5512] <... futex resumed>) = 0 [pid 5511] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5510] <... mprotect resumed>) = 0 [pid 5057] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5511] <... futex resumed>) = 0 [pid 5510] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5512] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5511] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5512] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5511] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5510] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5512] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5511] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5510] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5512] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5511] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] unlink("./35/binderfs" [pid 5512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5513 attached [pid 5512] <... mmap resumed>) = 0x7f923ecd1000 [pid 5511] <... mmap resumed>) = 0x7f923ecd1000 [pid 5510] <... clone3 resumed> => {parent_tid=[5513]}, 88) = 5513 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... unlink resumed>) = 0 [pid 5513] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5512] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5511] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5510] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] getdents64(3, [pid 5513] <... rseq resumed>) = 0 [pid 5512] <... mprotect resumed>) = 0 [pid 5513] set_robust_list(0x7f923ecf19a0, 24 [pid 5511] <... mprotect resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5513] <... set_robust_list resumed>) = 0 [pid 5513] rt_sigprocmask(SIG_SETMASK, [], [pid 5511] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5513] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5512] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5511] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5510] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5057] close(3 [pid 5513] memfd_create("syzkaller", 0 [pid 5512] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5511] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5510] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(4, "", [pid 5057] <... close resumed>) = 0 ./strace-static-x86_64: Process 5514 attached [pid 5513] <... memfd_create resumed>) = 3 [pid 5512] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5510] <... futex resumed>) = 0 [pid 5509] <... ioctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] rmdir("./35" [pid 5514] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5510] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] getdents64(4, ./strace-static-x86_64: Process 5515 attached [pid 5514] <... rseq resumed>) = 0 [pid 5513] <... mmap resumed>) = 0x7f92368d1000 [pid 5512] <... clone3 resumed> => {parent_tid=[5515]}, 88) = 5515 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... rmdir resumed>) = 0 [pid 5515] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5514] set_robust_list(0x7f923ecf19a0, 24 [pid 5512] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(4, [pid 5515] <... rseq resumed>) = 0 [pid 5514] <... set_robust_list resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5515] set_robust_list(0x7f923ecf19a0, 24 [pid 5514] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] close(4 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5514] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... close resumed>) = 0 [pid 5515] rt_sigprocmask(SIG_SETMASK, [], [pid 5514] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5512] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5509] close(3 [pid 5511] <... clone3 resumed> => {parent_tid=[5514]}, 88) = 5514 [pid 5058] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5515] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5512] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5511] rt_sigprocmask(SIG_SETMASK, [], [pid 5509] <... close resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5515] memfd_create("syzkaller", 0 [pid 5512] <... futex resumed>) = 0 [pid 5511] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5509] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] mkdir("./36", 0777 [pid 5515] <... memfd_create resumed>) = 3 [pid 5512] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5511] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5509] <... mkdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5514] <... futex resumed>) = 0 [pid 5511] <... futex resumed>) = 1 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5509] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5515] <... mmap resumed>) = 0x7f92368d1000 [pid 5514] memfd_create("syzkaller", 0 [pid 5511] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] unlink("./36/binderfs" [pid 5514] <... memfd_create resumed>) = 3 [pid 5513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... unlink resumed>) = 0 [pid 5515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] getdents64(3, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5058] close(3 [pid 5514] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] <... close resumed>) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5513] <... write resumed>) = 524288 [pid 5509] <... mount resumed>) = 0 [pid 5058] rmdir("./36" [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5509] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] close(3 [pid 5509] <... openat resumed>) = 3 [pid 5057] <... close resumed>) = 0 [ 73.950307][ T5509] loop1: detected capacity change from 0 to 1024 [pid 5058] <... rmdir resumed>) = 0 [pid 5058] mkdir("./37", 0777 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5509] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... mkdir resumed>) = 0 [pid 5514] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5514] <... write resumed>) = 524288 [pid 5058] <... openat resumed>) = 3 [pid 5509] <... chdir resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5513] munmap(0x7f92368d1000, 138412032) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5509] ioctl(4, LOOP_CLR_FD [pid 5515] <... write resumed>) = 524288 [pid 5513] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] close(3 [pid 5513] <... openat resumed>) = 4 [pid 5058] <... close resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5513] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5517 attached ./strace-static-x86_64: Process 5516 attached [pid 5515] munmap(0x7f92368d1000, 138412032 [pid 5509] <... ioctl resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5516 [pid 5509] close(4 [pid 5517] set_robust_list(0x555555d616a0, 24 [pid 5516] set_robust_list(0x555555d616a0, 24 [pid 5515] <... munmap resumed>) = 0 [pid 5509] <... close resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5517 [pid 5517] <... set_robust_list resumed>) = 0 [pid 5516] <... set_robust_list resumed>) = 0 [pid 5515] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5517] chdir("./37" [pid 5516] chdir("./36" [pid 5515] <... openat resumed>) = 4 [pid 5516] <... chdir resumed>) = 0 [pid 5515] ioctl(4, LOOP_SET_FD, 3 [pid 5509] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5509] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5508] <... futex resumed>) = 0 [pid 5508] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] <... chdir resumed>) = 0 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5514] munmap(0x7f92368d1000, 138412032 [pid 5508] <... futex resumed>) = 0 [pid 5508] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] <... prctl resumed>) = 0 [pid 5514] <... munmap resumed>) = 0 [pid 5509] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5517] <... prctl resumed>) = 0 [pid 5516] setpgid(0, 0 [pid 5514] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5517] setpgid(0, 0 [pid 5516] <... setpgid resumed>) = 0 [pid 5514] <... openat resumed>) = 4 [pid 5509] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5517] <... setpgid resumed>) = 0 [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5514] ioctl(4, LOOP_SET_FD, 3 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5516] <... openat resumed>) = 3 [pid 5509] <... mknod resumed>) = 0 [pid 5517] <... openat resumed>) = 3 [pid 5516] write(3, "1000", 4 [pid 5513] <... ioctl resumed>) = 0 [pid 5509] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] write(3, "1000", 4 [pid 5516] <... write resumed>) = 4 [pid 5513] close(3 [pid 5509] <... futex resumed>) = 1 [pid 5508] <... futex resumed>) = 0 [pid 5517] <... write resumed>) = 4 [pid 5516] close(3 [pid 5514] <... ioctl resumed>) = 0 [pid 5513] <... close resumed>) = 0 [pid 5509] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5508] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] close(3 [pid 5516] <... close resumed>) = 0 [pid 5514] close(3 [pid 5513] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5509] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5508] <... futex resumed>) = 0 [pid 5517] <... close resumed>) = 0 [pid 5516] symlink("/dev/binderfs", "./binderfs" [pid 5515] <... ioctl resumed>) = 0 [pid 5514] <... close resumed>) = 0 [pid 5513] <... mkdir resumed>) = 0 [pid 5509] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5508] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5517] symlink("/dev/binderfs", "./binderfs" [pid 5516] <... symlink resumed>) = 0 [pid 5515] close(3 [pid 5514] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5517] <... symlink resumed>) = 0 [pid 5516] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] <... close resumed>) = 0 [pid 5513] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5509] <... open resumed>) = 4 [pid 5517] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5516] <... futex resumed>) = 0 [pid 5515] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5514] <... mkdir resumed>) = 0 [pid 5517] <... futex resumed>) = 0 [pid 5516] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5514] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5509] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5516] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5515] <... mkdir resumed>) = 0 [pid 5513] <... mount resumed>) = 0 [pid 5509] <... futex resumed>) = 1 [pid 5508] <... futex resumed>) = 0 [pid 5517] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5516] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5513] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5508] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5516] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5515] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5513] <... openat resumed>) = 3 [pid 5509] sync( [pid 5508] <... futex resumed>) = 0 [pid 5517] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5514] <... mount resumed>) = 0 [pid 5513] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5508] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5516] <... mmap resumed>) = 0x7f923ecd1000 [pid 5514] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5513] <... chdir resumed>) = 0 [pid 5517] <... mmap resumed>) = 0x7f923ecd1000 [pid 5516] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5514] <... openat resumed>) = 3 [pid 5513] ioctl(4, LOOP_CLR_FD [pid 5517] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5516] <... mprotect resumed>) = 0 [pid 5514] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5513] <... ioctl resumed>) = 0 [pid 5516] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5514] <... chdir resumed>) = 0 [pid 5513] close(4 [pid 5517] <... mprotect resumed>) = 0 [pid 5516] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5514] ioctl(4, LOOP_CLR_FD [pid 5513] <... close resumed>) = 0 [pid 5516] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5514] <... ioctl resumed>) = 0 [pid 5513] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5518 attached [pid 5514] close(4 [pid 5513] <... futex resumed>) = 1 [pid 5510] <... futex resumed>) = 0 [pid 5518] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5517] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5516] <... clone3 resumed> => {parent_tid=[5518]}, 88) = 5518 [pid 5515] <... mount resumed>) = 0 [pid 5514] <... close resumed>) = 0 [pid 5513] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5510] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5514] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5510] <... futex resumed>) = 0 [pid 5518] <... rseq resumed>) = 0 [pid 5517] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5516] rt_sigprocmask(SIG_SETMASK, [], [pid 5515] <... openat resumed>) = 3 [pid 5514] <... futex resumed>) = 1 [pid 5513] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5511] <... futex resumed>) = 0 [pid 5510] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5518] set_robust_list(0x7f923ecf19a0, 24 [pid 5517] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5516] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5515] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5514] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5513] <... mknod resumed>) = 0 [pid 5511] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5518] <... set_robust_list resumed>) = 0 [pid 5516] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] <... chdir resumed>) = 0 [pid 5514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5511] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5519 attached [pid 5518] rt_sigprocmask(SIG_SETMASK, [], [pid 5516] <... futex resumed>) = 0 [pid 5515] ioctl(4, LOOP_CLR_FD [pid 5514] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5513] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5511] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5518] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5515] <... ioctl resumed>) = 0 [pid 5513] <... futex resumed>) = 1 [pid 5510] <... futex resumed>) = 0 [pid 5519] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5518] memfd_create("syzkaller", 0 [pid 5517] <... clone3 resumed> => {parent_tid=[5519]}, 88) = 5519 [pid 5516] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5515] close(4 [pid 5513] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 74.029680][ T5513] loop5: detected capacity change from 0 to 1024 [ 74.041718][ T5515] loop0: detected capacity change from 0 to 1024 [ 74.055139][ T5514] loop4: detected capacity change from 0 to 1024 [pid 5510] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5519] <... rseq resumed>) = 0 [pid 5517] rt_sigprocmask(SIG_SETMASK, [], [pid 5514] <... mknod resumed>) = 0 [pid 5513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5510] <... futex resumed>) = 0 [pid 5519] set_robust_list(0x7f923ecf19a0, 24 [pid 5518] <... memfd_create resumed>) = 3 [pid 5517] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5515] <... close resumed>) = 0 [pid 5514] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5510] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5509] <... sync resumed>) = 0 [pid 5519] <... set_robust_list resumed>) = 0 [pid 5518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5517] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5514] <... futex resumed>) = 1 [pid 5511] <... futex resumed>) = 0 [pid 5519] rt_sigprocmask(SIG_SETMASK, [], [pid 5518] <... mmap resumed>) = 0x7f92368d1000 [pid 5517] <... futex resumed>) = 0 [pid 5515] <... futex resumed>) = 1 [pid 5514] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5512] <... futex resumed>) = 0 [pid 5511] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5509] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5519] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5517] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5513] <... open resumed>) = 4 [pid 5512] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5514] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5512] <... futex resumed>) = 0 [pid 5511] <... futex resumed>) = 0 [pid 5519] memfd_create("syzkaller", 0 [pid 5515] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5513] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5512] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5511] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5509] <... futex resumed>) = 1 [pid 5508] <... futex resumed>) = 0 [pid 5519] <... memfd_create resumed>) = 3 [pid 5513] <... futex resumed>) = 1 [pid 5510] <... futex resumed>) = 0 [pid 5509] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5513] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5510] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5508] exit_group(0 [pid 5519] <... mmap resumed>) = 0x7f92368d1000 [pid 5518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5514] <... open resumed>) = 4 [pid 5513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5510] <... futex resumed>) = 0 [pid 5509] <... futex resumed>) = ? [pid 5508] <... exit_group resumed>) = ? [pid 5519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5510] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5513] sync( [pid 5509] +++ exited with 0 +++ [pid 5508] +++ exited with 0 +++ [pid 5514] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5519] <... write resumed>) = 524288 [pid 5518] <... write resumed>) = 524288 [pid 5515] <... mknod resumed>) = 0 [pid 5514] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5508, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5519] munmap(0x7f92368d1000, 138412032 [pid 5511] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5514] <... futex resumed>) = 0 [pid 5511] <... futex resumed>) = 1 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] <... munmap resumed>) = 0 [pid 5518] munmap(0x7f92368d1000, 138412032 [pid 5515] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5514] sync( [pid 5513] <... sync resumed>) = 0 [pid 5511] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5519] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5518] <... munmap resumed>) = 0 [pid 5515] <... futex resumed>) = 1 [pid 5514] <... sync resumed>) = 0 [pid 5513] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5512] <... futex resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5519] <... openat resumed>) = 4 [pid 5518] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5515] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5514] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5513] <... futex resumed>) = 1 [pid 5512] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5510] <... futex resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5514] <... futex resumed>) = 1 [pid 5513] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5512] <... futex resumed>) = 0 [pid 5511] <... futex resumed>) = 0 [pid 5510] exit_group(0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5519] ioctl(4, LOOP_SET_FD, 3 [pid 5518] <... openat resumed>) = 4 [pid 5515] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5514] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5513] <... futex resumed>) = ? [pid 5512] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5511] exit_group(0 [pid 5510] <... exit_group resumed>) = ? [pid 5056] getdents64(3, [pid 5514] <... futex resumed>) = ? [pid 5513] +++ exited with 0 +++ [pid 5511] <... exit_group resumed>) = ? [pid 5510] +++ exited with 0 +++ [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5510, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5514] +++ exited with 0 +++ [pid 5511] +++ exited with 0 +++ [pid 5060] <... restart_syscall resumed>) = 0 [pid 5056] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5060] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5518] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5518] <... ioctl resumed>) = 0 [pid 5060] newfstatat(3, "", [pid 5059] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5059] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5515] <... open resumed>) = 4 [pid 5515] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5512] <... futex resumed>) = 0 [pid 5515] sync( [pid 5512] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5512] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5518] close(3 [pid 5519] <... ioctl resumed>) = 0 [pid 5515] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5515] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5512] <... futex resumed>) = 0 [pid 5515] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5512] exit_group(0 [pid 5515] <... futex resumed>) = ? [pid 5512] <... exit_group resumed>) = ? [pid 5519] close(3 [pid 5518] <... close resumed>) = 0 [pid 5515] +++ exited with 0 +++ [pid 5512] +++ exited with 0 +++ [pid 5518] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5512, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [ 74.177490][ T5519] loop3: detected capacity change from 0 to 1024 [ 74.193337][ T5518] loop2: detected capacity change from 0 to 1024 [pid 5519] <... close resumed>) = 0 [pid 5518] <... mkdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5519] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5518] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... restart_syscall resumed>) = 0 [pid 5519] <... mkdir resumed>) = 0 [pid 5055] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... openat resumed>) = 3 [pid 5518] <... mount resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(3, "", [pid 5518] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5518] <... openat resumed>) = 3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5518] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5518] <... chdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5055] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5518] ioctl(4, LOOP_CLR_FD [pid 5060] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] <... ioctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5518] close(4 [pid 5060] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] getdents64(4, [pid 5518] <... close resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5518] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(4, "", [pid 5059] close(4 [pid 5056] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] <... futex resumed>) = 1 [pid 5516] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5518] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] getdents64(4, [pid 5059] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5516] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] <... futex resumed>) = 0 [pid 5516] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5056] newfstatat(4, "", [pid 5518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5518] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(4, [pid 5060] close(4) = 0 [pid 5059] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(4, [pid 5060] <... rmdir resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5518] <... mknod resumed>) = 0 [pid 5060] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] close(4 [pid 5518] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5059] unlink("./36/binderfs" [pid 5055] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5518] <... futex resumed>) = 1 [pid 5516] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5518] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5516] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] unlink("./37/binderfs" [pid 5059] getdents64(3, [pid 5516] <... futex resumed>) = 0 [pid 5056] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5516] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... rmdir resumed>) = 0 [pid 5056] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] close(3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5519] <... mount resumed>) = 0 [pid 5518] <... open resumed>) = 4 [pid 5060] getdents64(3, [pid 5059] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5055] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] unlink("./37/binderfs" [pid 5519] <... openat resumed>) = 3 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] rmdir("./36" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] close(3 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5519] <... chdir resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5519] ioctl(4, LOOP_CLR_FD [pid 5518] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] rmdir("./37" [pid 5059] mkdir("./37", 0777 [pid 5056] getdents64(3, [pid 5055] newfstatat(4, "", [pid 5519] <... ioctl resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5519] close(4 [pid 5518] <... futex resumed>) = 1 [pid 5516] <... futex resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5518] sync( [pid 5516] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] mkdir("./38", 0777 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5055] getdents64(4, [pid 5516] <... futex resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] close(3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5519] <... close resumed>) = 0 [pid 5516] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5056] <... close resumed>) = 0 [pid 5055] getdents64(4, [pid 5519] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] close(3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] <... close resumed>) = 0 [pid 5055] close(4 [pid 5060] close(3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... close resumed>) = 0 [pid 5519] <... futex resumed>) = 1 [pid 5060] <... close resumed>) = 0 [pid 5056] rmdir("./37"./strace-static-x86_64: Process 5520 attached [pid 5519] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5517] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5520] set_robust_list(0x555555d616a0, 24 [pid 5517] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5520] <... set_robust_list resumed>) = 0 [pid 5519] <... futex resumed>) = 0 [pid 5517] <... futex resumed>) = 1 [pid 5520] chdir("./37" [pid 5519] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5517] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5520 [pid 5056] mkdir("./38", 0777 [pid 5520] <... chdir resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5521 [pid 5055] <... rmdir resumed>) = 0 [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5055] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5520] setpgid(0, 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5520] <... setpgid resumed>) = 0 [pid 5519] <... mknod resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./37/binderfs", ./strace-static-x86_64: Process 5521 attached [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5519] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5521] set_robust_list(0x555555d616a0, 24 [pid 5520] <... openat resumed>) = 3 [pid 5518] <... sync resumed>) = 0 [pid 5519] <... futex resumed>) = 1 [pid 5517] <... futex resumed>) = 0 [pid 5521] <... set_robust_list resumed>) = 0 [pid 5520] write(3, "1000", 4 [pid 5519] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5518] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... openat resumed>) = 3 [pid 5055] unlink("./37/binderfs" [pid 5521] chdir("./38" [pid 5520] <... write resumed>) = 4 [pid 5518] <... futex resumed>) = 1 [pid 5517] <... futex resumed>) = 0 [pid 5516] <... futex resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5521] <... chdir resumed>) = 0 [pid 5520] close(3 [pid 5517] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5516] exit_group(0 [pid 5518] exit_group(0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5055] getdents64(3, [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5520] <... close resumed>) = 0 [pid 5518] +++ exited with 0 +++ [pid 5516] <... exit_group resumed>) = ? [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5521] <... prctl resumed>) = 0 [pid 5520] symlink("/dev/binderfs", "./binderfs" [pid 5519] <... open resumed>) = 4 [pid 5516] +++ exited with 0 +++ [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5516, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] close(3 [pid 5056] close(3 [pid 5055] <... close resumed>) = 0 [pid 5520] <... symlink resumed>) = 0 [pid 5057] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./37" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5521] setpgid(0, 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5521] <... setpgid resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5520] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... openat resumed>) = 3 [pid 5521] <... openat resumed>) = 3 [pid 5521] write(3, "1000", 4) = 4 [pid 5519] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5522 [pid 5521] close(3 [pid 5519] <... futex resumed>) = 1 [pid 5517] <... futex resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5521] <... close resumed>) = 0 [pid 5520] <... futex resumed>) = 0 [pid 5519] sync( [pid 5517] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] mkdir("./38", 0777./strace-static-x86_64: Process 5522 attached [pid 5521] symlink("/dev/binderfs", "./binderfs" [pid 5520] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5517] <... futex resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5522] set_robust_list(0x555555d616a0, 24 [pid 5521] <... symlink resumed>) = 0 [pid 5520] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5517] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] getdents64(3, [pid 5055] <... mkdir resumed>) = 0 [pid 5522] <... set_robust_list resumed>) = 0 [pid 5521] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5520] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5522] chdir("./38" [pid 5521] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5521] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5522] <... chdir resumed>) = 0 [pid 5521] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... openat resumed>) = 3 [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5521] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5520] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5522] <... prctl resumed>) = 0 [pid 5521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5520] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5522] setpgid(0, 0 [pid 5521] <... mmap resumed>) = 0x7f923ecd1000 [pid 5520] <... mprotect resumed>) = 0 [pid 5522] <... setpgid resumed>) = 0 [pid 5521] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5521] <... mprotect resumed>) = 0 [pid 5520] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5519] <... sync resumed>) = 0 [pid 5055] close(3 [pid 5522] <... openat resumed>) = 3 [pid 5521] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5519] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5521] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5519] <... futex resumed>) = 1 [pid 5517] <... futex resumed>) = 0 [pid 5522] write(3, "1000", 4 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5523 attached [pid 5519] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5517] exit_group(0 [pid 5523] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5521] <... clone3 resumed> => {parent_tid=[5523]}, 88) = 5523 [pid 5519] <... futex resumed>) = ? [pid 5517] <... exit_group resumed>) = ? [pid 5523] <... rseq resumed>) = 0 [pid 5521] rt_sigprocmask(SIG_SETMASK, [], [pid 5519] +++ exited with 0 +++ [pid 5517] +++ exited with 0 +++ [pid 5523] set_robust_list(0x7f923ecf19a0, 24 [pid 5521] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5523] <... set_robust_list resumed>) = 0 [pid 5523] rt_sigprocmask(SIG_SETMASK, [], [pid 5521] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5521] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5524 attached [pid 5523] memfd_create("syzkaller", 0 [pid 5522] <... write resumed>) = 4 [pid 5521] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5520] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5524] set_robust_list(0x555555d616a0, 24 [pid 5522] close(3 [pid 5520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5524 ./strace-static-x86_64: Process 5525 attached [pid 5524] <... set_robust_list resumed>) = 0 [pid 5522] <... close resumed>) = 0 [pid 5525] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5524] chdir("./38" [pid 5522] symlink("/dev/binderfs", "./binderfs" [pid 5520] <... clone3 resumed> => {parent_tid=[5525]}, 88) = 5525 [pid 5058] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] <... rseq resumed>) = 0 [pid 5523] <... memfd_create resumed>) = 3 [pid 5522] <... symlink resumed>) = 0 [pid 5520] rt_sigprocmask(SIG_SETMASK, [], [pid 5524] <... chdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5525] set_robust_list(0x7f923ecf19a0, 24 [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5522] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = 0 [pid 5525] <... set_robust_list resumed>) = 0 [pid 5524] <... prctl resumed>) = 0 [pid 5523] <... mmap resumed>) = 0x7f92368d1000 [pid 5522] <... futex resumed>) = 0 [pid 5520] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [pid 5525] rt_sigprocmask(SIG_SETMASK, [], [pid 5524] setpgid(0, 0 [pid 5523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5522] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5520] <... futex resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5057] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5525] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5522] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5525] memfd_create("syzkaller", 0 [pid 5524] <... setpgid resumed>) = 0 [pid 5522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5520] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5525] <... memfd_create resumed>) = 3 [pid 5523] <... write resumed>) = 524288 [pid 5522] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] getdents64(3, [pid 5057] newfstatat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5524] <... openat resumed>) = 3 [pid 5523] munmap(0x7f92368d1000, 138412032 [pid 5522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5525] <... mmap resumed>) = 0x7f92368d1000 [pid 5524] write(3, "1000", 4 [pid 5523] <... munmap resumed>) = 0 [pid 5522] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5524] <... write resumed>) = 4 [pid 5522] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5524] close(3 [pid 5522] <... mprotect resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5524] <... close resumed>) = 0 [pid 5523] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5522] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5524] symlink("/dev/binderfs", "./binderfs" [pid 5057] openat(AT_FDCWD, "./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5524] <... symlink resumed>) = 0 [pid 5523] <... openat resumed>) = 4 [pid 5522] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5523] ioctl(4, LOOP_SET_FD, 3 [pid 5057] newfstatat(4, "", [pid 5523] <... ioctl resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5525] <... write resumed>) = 524288 [pid 5522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] getdents64(4, [pid 5524] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5524] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] getdents64(4, ./strace-static-x86_64: Process 5526 attached [pid 5524] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5526] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5524] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5522] <... clone3 resumed> => {parent_tid=[5526]}, 88) = 5526 [pid 5057] close(4 [pid 5526] <... rseq resumed>) = 0 [pid 5524] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5522] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... close resumed>) = 0 [pid 5526] set_robust_list(0x7f923ecf19a0, 24 [pid 5524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5522] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] rmdir("./36/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5526] <... set_robust_list resumed>) = 0 [pid 5524] <... mmap resumed>) = 0x7f923ecd1000 [pid 5522] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rmdir resumed>) = 0 [pid 5526] rt_sigprocmask(SIG_SETMASK, [], [pid 5525] munmap(0x7f92368d1000, 138412032 [pid 5524] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5523] close(3 [pid 5522] <... futex resumed>) = 0 [pid 5058] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5526] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5524] <... mprotect resumed>) = 0 [pid 5522] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5525] <... munmap resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5523] <... close resumed>) = 0 [pid 5526] memfd_create("syzkaller", 0 [pid 5525] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5524] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5523] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5526] <... memfd_create resumed>) = 3 [pid 5525] <... openat resumed>) = 4 [pid 5524] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5524] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5527 attached [pid 5526] <... mmap resumed>) = 0x7f92368d1000 [pid 5525] ioctl(4, LOOP_SET_FD, 3 [pid 5523] <... mkdir resumed>) = 0 [pid 5058] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] unlink("./36/binderfs" [pid 5524] <... clone3 resumed> => {parent_tid=[5527]}, 88) = 5527 [pid 5524] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5524] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5524] <... futex resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5524] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] close(3) = 0 [pid 5057] rmdir("./36") = 0 [pid 5057] mkdir("./37", 0777) = 0 [pid 5527] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5523] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5527] <... rseq resumed>) = 0 [pid 5526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5525] <... ioctl resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5527] set_robust_list(0x7f923ecf19a0, 24 [pid 5525] close(3 [pid 5058] <... openat resumed>) = 4 [pid 5527] <... set_robust_list resumed>) = 0 [pid 5525] <... close resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5057] <... openat resumed>) = 3 [pid 5527] rt_sigprocmask(SIG_SETMASK, [], [pid 5525] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5527] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5526] <... write resumed>) = 524288 [pid 5525] <... mkdir resumed>) = 0 [pid 5523] <... mount resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5527] memfd_create("syzkaller", 0 [pid 5526] munmap(0x7f92368d1000, 138412032 [pid 5525] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5523] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] close(3 [pid 5527] <... memfd_create resumed>) = 3 [pid 5526] <... munmap resumed>) = 0 [pid 5523] <... openat resumed>) = 3 [pid 5058] getdents64(4, [pid 5057] <... close resumed>) = 0 [pid 5527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5526] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5527] <... mmap resumed>) = 0x7f92368d1000 [pid 5526] <... openat resumed>) = 4 [pid 5523] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] close(4./strace-static-x86_64: Process 5528 attached [pid 5527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5526] ioctl(4, LOOP_SET_FD, 3 [pid 5523] <... chdir resumed>) = 0 [pid 5528] set_robust_list(0x555555d616a0, 24 [pid 5058] <... close resumed>) = 0 [pid 5528] <... set_robust_list resumed>) = 0 [ 74.445401][ T5523] loop5: detected capacity change from 0 to 1024 [ 74.481314][ T5525] loop4: detected capacity change from 0 to 1024 [pid 5523] ioctl(4, LOOP_CLR_FD [pid 5528] chdir("./37" [pid 5523] <... ioctl resumed>) = 0 [pid 5527] <... write resumed>) = 524288 [pid 5526] <... ioctl resumed>) = 0 [pid 5525] <... mount resumed>) = 0 [pid 5523] close(4 [pid 5058] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5528 [pid 5528] <... chdir resumed>) = 0 [pid 5527] munmap(0x7f92368d1000, 138412032 [pid 5525] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... rmdir resumed>) = 0 [pid 5523] <... close resumed>) = 0 [pid 5526] close(3 [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] <... munmap resumed>) = 0 [pid 5526] <... close resumed>) = 0 [pid 5525] <... openat resumed>) = 3 [pid 5523] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5528] <... prctl resumed>) = 0 [pid 5526] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5525] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] setpgid(0, 0 [pid 5527] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5526] <... mkdir resumed>) = 0 [pid 5525] <... chdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5528] <... setpgid resumed>) = 0 [pid 5527] <... openat resumed>) = 4 [pid 5526] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5525] ioctl(4, LOOP_CLR_FD [pid 5523] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5527] ioctl(4, LOOP_SET_FD, 3 [pid 5525] <... ioctl resumed>) = 0 [pid 5523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5521] <... futex resumed>) = 0 [pid 5058] unlink("./37/binderfs" [pid 5528] <... openat resumed>) = 3 [pid 5527] <... ioctl resumed>) = 0 [pid 5526] <... mount resumed>) = 0 [pid 5525] close(4 [pid 5523] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5521] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... unlink resumed>) = 0 [pid 5526] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5528] write(3, "1000", 4 [pid 5526] <... openat resumed>) = 3 [pid 5525] <... close resumed>) = 0 [pid 5528] <... write resumed>) = 4 [pid 5526] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5525] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(3, [pid 5528] close(3 [pid 5526] <... chdir resumed>) = 0 [pid 5525] <... futex resumed>) = 1 [pid 5520] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5528] <... close resumed>) = 0 [pid 5526] ioctl(4, LOOP_CLR_FD [pid 5525] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5520] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5528] symlink("/dev/binderfs", "./binderfs" [pid 5526] <... ioctl resumed>) = 0 [pid 5525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5523] <... mknod resumed>) = 0 [pid 5520] <... futex resumed>) = 0 [pid 5528] <... symlink resumed>) = 0 [pid 5526] close(4 [pid 5525] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5523] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5520] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5528] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5526] <... close resumed>) = 0 [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5058] rmdir("./37" [pid 5528] <... futex resumed>) = 0 [pid 5526] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5528] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5526] <... futex resumed>) = 1 [pid 5525] <... mknod resumed>) = 0 [pid 5522] <... futex resumed>) = 0 [pid 5523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5521] <... futex resumed>) = 0 [pid 5528] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5526] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5525] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5522] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5521] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] mkdir("./38", 0777 [pid 5528] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5527] close(3 [pid 5526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5525] <... futex resumed>) = 1 [pid 5522] <... futex resumed>) = 0 [pid 5520] <... futex resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5528] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5526] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5522] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5520] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5528] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5527] <... close resumed>) = 0 [pid 5525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5528] <... mmap resumed>) = 0x7f923ecd1000 [pid 5527] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5523] <... open resumed>) = 4 [pid 5520] <... futex resumed>) = 0 [pid 5528] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5527] <... mkdir resumed>) = 0 [pid 5520] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... openat resumed>) = 3 [pid 5528] <... mprotect resumed>) = 0 [pid 5526] <... mknod resumed>) = 0 [pid 5523] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5528] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5526] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5528] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5525] <... open resumed>) = 4 [pid 5523] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5521] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5528] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [ 74.514000][ T5526] loop1: detected capacity change from 0 to 1024 [ 74.536296][ T5527] loop0: detected capacity change from 0 to 1024 [pid 5527] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5526] <... futex resumed>) = 1 [pid 5522] <... futex resumed>) = 0 [pid 5521] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5529 attached [pid 5525] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5522] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5521] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] close(3 [pid 5529] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5528] <... clone3 resumed> => {parent_tid=[5529]}, 88) = 5529 [pid 5526] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5525] <... futex resumed>) = 1 [pid 5523] sync( [pid 5522] <... futex resumed>) = 0 [pid 5520] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5529] <... rseq resumed>) = 0 [pid 5528] rt_sigprocmask(SIG_SETMASK, [], [pid 5525] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5522] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5520] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5529] set_robust_list(0x7f923ecf19a0, 24 [pid 5528] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5520] <... futex resumed>) = 0 [pid 5529] <... set_robust_list resumed>) = 0 [pid 5528] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5527] <... mount resumed>) = 0 [pid 5525] sync( [pid 5520] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5529] rt_sigprocmask(SIG_SETMASK, [], [pid 5528] <... futex resumed>) = 0 [pid 5527] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5530 attached [pid 5529] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5528] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5527] <... openat resumed>) = 3 [pid 5530] set_robust_list(0x555555d616a0, 24 [pid 5529] memfd_create("syzkaller", 0 [pid 5527] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5530] <... set_robust_list resumed>) = 0 [pid 5529] <... memfd_create resumed>) = 3 [pid 5527] <... chdir resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5530 [pid 5530] chdir("./38" [pid 5529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5527] ioctl(4, LOOP_CLR_FD [pid 5530] <... chdir resumed>) = 0 [pid 5529] <... mmap resumed>) = 0x7f92368d1000 [pid 5527] <... ioctl resumed>) = 0 [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] close(4 [pid 5530] <... prctl resumed>) = 0 [pid 5527] <... close resumed>) = 0 [pid 5530] setpgid(0, 0 [pid 5527] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] <... setpgid resumed>) = 0 [pid 5527] <... futex resumed>) = 1 [pid 5524] <... futex resumed>) = 0 [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5527] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5526] <... open resumed>) = 4 [pid 5524] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5530] <... openat resumed>) = 3 [pid 5524] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5526] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] write(3, "1000", 4 [pid 5526] <... futex resumed>) = 1 [pid 5522] <... futex resumed>) = 0 [pid 5530] <... write resumed>) = 4 [pid 5526] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5522] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] close(3 [pid 5527] <... mknod resumed>) = 0 [pid 5526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5522] <... futex resumed>) = 0 [pid 5530] <... close resumed>) = 0 [pid 5530] symlink("/dev/binderfs", "./binderfs" [pid 5529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5527] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5526] sync( [pid 5522] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5530] <... symlink resumed>) = 0 [pid 5527] <... futex resumed>) = 1 [pid 5524] <... futex resumed>) = 0 [pid 5527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5524] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5524] <... futex resumed>) = 0 [pid 5530] <... futex resumed>) = 0 [pid 5530] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5524] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5530] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5530] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5527] <... open resumed>) = 4 [pid 5530] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5521] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5530] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5527] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5527] <... futex resumed>) = 1 [pid 5524] <... futex resumed>) = 0 [pid 5530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5527] sync( [pid 5526] <... sync resumed>) = 0 [pid 5525] <... sync resumed>) = 0 [pid 5524] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5523] <... sync resumed>) = 0 [pid 5529] <... write resumed>) = 524288 [pid 5526] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5525] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5524] <... futex resumed>) = 0 [pid 5520] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 5531 attached [pid 5530] <... clone3 resumed> => {parent_tid=[5531]}, 88) = 5531 [pid 5529] munmap(0x7f92368d1000, 138412032 [pid 5526] <... futex resumed>) = 1 [pid 5525] <... futex resumed>) = 0 [pid 5524] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5523] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5522] <... futex resumed>) = 0 [pid 5521] exit_group(0 [pid 5520] exit_group(0 [pid 5531] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5530] rt_sigprocmask(SIG_SETMASK, [], [pid 5529] <... munmap resumed>) = 0 [pid 5527] <... sync resumed>) = 0 [pid 5526] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5523] <... futex resumed>) = ? [pid 5522] exit_group(0 [pid 5521] <... exit_group resumed>) = ? [pid 5520] <... exit_group resumed>) = ? [pid 5531] <... rseq resumed>) = 0 [pid 5530] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5527] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5525] +++ exited with 0 +++ [pid 5523] +++ exited with 0 +++ [pid 5522] <... exit_group resumed>) = ? [pid 5521] +++ exited with 0 +++ [pid 5520] +++ exited with 0 +++ [pid 5531] set_robust_list(0x7f923ecf19a0, 24 [pid 5530] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5527] <... futex resumed>) = 1 [pid 5526] <... futex resumed>) = ? [pid 5524] <... futex resumed>) = 0 [pid 5529] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5531] <... set_robust_list resumed>) = 0 [pid 5530] <... futex resumed>) = 0 [pid 5527] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5524] exit_group(0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5520, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5531] rt_sigprocmask(SIG_SETMASK, [], [pid 5530] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5529] <... openat resumed>) = 4 [pid 5527] <... futex resumed>) = ? [pid 5524] <... exit_group resumed>) = ? [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5531] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5529] ioctl(4, LOOP_SET_FD, 3 [pid 5527] +++ exited with 0 +++ [pid 5526] +++ exited with 0 +++ [pid 5524] +++ exited with 0 +++ [pid 5522] +++ exited with 0 +++ [pid 5060] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] memfd_create("syzkaller", 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... restart_syscall resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5060] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5531] <... memfd_create resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5531] <... mmap resumed>) = 0x7f92368d1000 [pid 5060] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] getdents64(3, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(3, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... openat resumed>) = 3 [pid 5055] <... openat resumed>) = 3 [pid 5059] newfstatat(3, "", [pid 5055] newfstatat(3, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] getdents64(3, [pid 5056] <... umount2 resumed>) = 0 [pid 5055] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... write resumed>) = 524288 [pid 5529] <... ioctl resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5529] close(3 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] <... close resumed>) = 0 [pid 5529] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5056] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5529] <... mkdir resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5055] <... umount2 resumed>) = 0 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] close(4 [pid 5529] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5531] munmap(0x7f92368d1000, 138412032 [pid 5056] <... rmdir resumed>) = 0 [pid 5531] <... munmap resumed>) = 0 [pid 5056] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5531] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] <... openat resumed>) = 4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5529] <... mount resumed>) = 0 [ 74.661380][ T5529] loop2: detected capacity change from 0 to 1024 [pid 5060] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5531] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5529] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] <... openat resumed>) = 3 [pid 5059] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5529] <... chdir resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5529] ioctl(4, LOOP_CLR_FD [pid 5055] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5529] <... ioctl resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5529] close(4 [pid 5059] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] unlink("./38/binderfs" [pid 5060] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... unlink resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5056] getdents64(3, [pid 5529] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5528] <... futex resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5529] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5528] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] close(3) = 0 [pid 5056] rmdir("./38" [pid 5059] <... openat resumed>) = 4 [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5528] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] mkdir("./39", 0777 [pid 5528] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, [pid 5059] newfstatat(4, "", [pid 5056] <... mkdir resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5529] <... mknod resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(4, [pid 5056] <... openat resumed>) = 3 [pid 5055] getdents64(4, [pid 5529] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5531] <... ioctl resumed>) = 0 [pid 5529] <... futex resumed>) = 1 [pid 5528] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5531] close(3 [pid 5529] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5528] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] close(3 [pid 5055] getdents64(4, [pid 5531] <... close resumed>) = 0 [pid 5528] <... futex resumed>) = 0 [pid 5060] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5531] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5528] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... rmdir resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5531] <... mkdir resumed>) = 0 [pid 5529] <... open resumed>) = 4 [pid 5059] close(4 [pid 5529] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5055] close(4 [pid 5059] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5528] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5529] <... futex resumed>) = 1 [pid 5528] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... rmdir resumed>) = 0 [pid 5055] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5529] sync( [pid 5528] <... futex resumed>) = 0 [pid 5059] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5531] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5055] <... rmdir resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5528] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5532 attached [pid 5060] unlink("./38/binderfs" [pid 5059] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5532 [pid 5055] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5532] set_robust_list(0x555555d616a0, 24 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5060] getdents64(3, [pid 5059] unlink("./37/binderfs" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5532] chdir("./39" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5059] getdents64(3, [pid 5532] <... chdir resumed>) = 0 [pid 5060] close(3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] close(3 [pid 5055] unlink("./38/binderfs" [pid 5059] <... close resumed>) = 0 [ 74.710834][ T5531] loop3: detected capacity change from 0 to 1024 [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... close resumed>) = 0 [pid 5059] rmdir("./37" [pid 5055] <... unlink resumed>) = 0 [pid 5532] <... prctl resumed>) = 0 [pid 5060] rmdir("./38" [pid 5532] setpgid(0, 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5055] getdents64(3, [pid 5532] <... setpgid resumed>) = 0 [pid 5060] mkdir("./39", 0777 [pid 5059] mkdir("./38", 0777 [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... mkdir resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5532] <... openat resumed>) = 3 [pid 5059] <... mkdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5532] write(3, "1000", 4 [pid 5531] <... mount resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5055] close(3 [pid 5532] <... write resumed>) = 4 [pid 5531] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5532] close(3 [pid 5531] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5059] close(3 [pid 5055] <... close resumed>) = 0 [pid 5532] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5532] symlink("/dev/binderfs", "./binderfs" [pid 5531] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5532] <... symlink resumed>) = 0 [pid 5531] <... chdir resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5531] ioctl(4, LOOP_CLR_FD [pid 5060] close(3 [pid 5532] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5531] <... ioctl resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] rmdir("./38" [pid 5531] close(4 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5532] <... futex resumed>) = 0 [pid 5531] <... close resumed>) = 0 [pid 5532] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5531] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5533 attached [pid 5532] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5531] <... futex resumed>) = 1 [pid 5530] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5533] set_robust_list(0x555555d616a0, 24 [pid 5532] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5531] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5530] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5533] <... set_robust_list resumed>) = 0 [pid 5532] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5530] <... futex resumed>) = 0 [pid 5528] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] mkdir("./39", 0777 [pid 5533] chdir("./39" [pid 5532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5531] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5530] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5534 attached [pid 5533] <... chdir resumed>) = 0 [pid 5532] <... mmap resumed>) = 0x7f923ecd1000 [pid 5529] <... sync resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5533 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5534 [pid 5055] <... mkdir resumed>) = 0 [pid 5534] set_robust_list(0x555555d616a0, 24 [pid 5532] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5529] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] <... mprotect resumed>) = 0 [pid 5529] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5534] chdir("./38" [pid 5533] <... prctl resumed>) = 0 [pid 5532] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5531] <... mknod resumed>) = 0 [pid 5529] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5528] exit_group(0 [pid 5534] <... chdir resumed>) = 0 [pid 5533] setpgid(0, 0 [pid 5529] <... futex resumed>) = ? [pid 5528] <... exit_group resumed>) = ? [pid 5533] <... setpgid resumed>) = 0 [pid 5532] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5531] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] +++ exited with 0 +++ [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5535 attached [pid 5531] <... futex resumed>) = 1 [pid 5530] <... futex resumed>) = 0 [pid 5535] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5533] <... openat resumed>) = 3 [pid 5532] <... clone3 resumed> => {parent_tid=[5535]}, 88) = 5535 [pid 5531] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5530] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... rseq resumed>) = 0 [pid 5533] write(3, "1000", 4 [pid 5532] rt_sigprocmask(SIG_SETMASK, [], [pid 5530] <... futex resumed>) = 0 [pid 5535] set_robust_list(0x7f923ecf19a0, 24 [pid 5533] <... write resumed>) = 4 [pid 5532] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5530] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5535] <... set_robust_list resumed>) = 0 [pid 5533] close(3 [pid 5532] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] rt_sigprocmask(SIG_SETMASK, [], [pid 5533] <... close resumed>) = 0 [pid 5532] <... futex resumed>) = 0 [pid 5535] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5533] symlink("/dev/binderfs", "./binderfs" [pid 5532] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5533] <... symlink resumed>) = 0 [pid 5528] +++ exited with 0 +++ [pid 5535] memfd_create("syzkaller", 0 [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5528, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] <... openat resumed>) = 3 [pid 5534] <... prctl resumed>) = 0 [pid 5533] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5533] <... futex resumed>) = 0 [pid 5534] setpgid(0, 0 [pid 5533] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5535] <... memfd_create resumed>) = 3 [pid 5534] <... setpgid resumed>) = 0 [pid 5533] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5531] <... open resumed>) = 4 [pid 5055] close(3 [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... close resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5533] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5057] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5536 ./strace-static-x86_64: Process 5536 attached [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5536] set_robust_list(0x555555d616a0, 24 [pid 5535] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5534] <... openat resumed>) = 3 [pid 5533] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... openat resumed>) = 3 [pid 5536] <... set_robust_list resumed>) = 0 [pid 5057] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5536] chdir("./39" [pid 5533] <... mprotect resumed>) = 0 [pid 5057] getdents64(3, [pid 5536] <... chdir resumed>) = 0 [pid 5533] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5531] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] write(3, "1000", 4 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] <... mmap resumed>) = 0x7f92368d1000 [pid 5534] <... write resumed>) = 4 [pid 5533] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5531] <... futex resumed>) = 1 [pid 5057] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... prctl resumed>) = 0 [pid 5534] close(3 [pid 5533] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5531] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5537 attached [pid 5536] setpgid(0, 0 [pid 5535] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5534] <... close resumed>) = 0 [pid 5530] <... futex resumed>) = 0 [pid 5537] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5536] <... setpgid resumed>) = 0 [pid 5534] symlink("/dev/binderfs", "./binderfs" [pid 5533] <... clone3 resumed> => {parent_tid=[5537]}, 88) = 5537 [pid 5530] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] <... rseq resumed>) = 0 [pid 5533] rt_sigprocmask(SIG_SETMASK, [], [pid 5531] <... futex resumed>) = 0 [pid 5530] <... futex resumed>) = 1 [pid 5537] set_robust_list(0x7f923ecf19a0, 24 [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5534] <... symlink resumed>) = 0 [pid 5531] sync( [pid 5537] <... set_robust_list resumed>) = 0 [pid 5536] <... openat resumed>) = 3 [pid 5534] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5533] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5530] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5537] rt_sigprocmask(SIG_SETMASK, [], [pid 5534] <... futex resumed>) = 0 [pid 5533] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... umount2 resumed>) = 0 [pid 5537] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5533] <... futex resumed>) = 0 [pid 5537] memfd_create("syzkaller", 0 [pid 5536] write(3, "1000", 4 [pid 5534] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5533] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5536] <... write resumed>) = 4 [pid 5534] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5535] <... write resumed>) = 524288 [pid 5537] <... memfd_create resumed>) = 3 [pid 5536] close(3 [pid 5534] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5536] <... close resumed>) = 0 [pid 5534] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5537] <... mmap resumed>) = 0x7f92368d1000 [pid 5536] symlink("/dev/binderfs", "./binderfs" [pid 5535] munmap(0x7f92368d1000, 138412032 [pid 5534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5536] <... symlink resumed>) = 0 [pid 5535] <... munmap resumed>) = 0 [pid 5534] <... mmap resumed>) = 0x7f923ecd1000 [pid 5535] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5534] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5536] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... openat resumed>) = 4 [pid 5534] <... mprotect resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5536] <... futex resumed>) = 0 [pid 5535] ioctl(4, LOOP_SET_FD, 3 [pid 5534] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5531] <... sync resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5537] <... write resumed>) = 524288 [pid 5536] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5534] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5531] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] newfstatat(4, "", [pid 5536] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5534] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5536] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5538 attached NULL, 8) = 0 [pid 5534] <... clone3 resumed> => {parent_tid=[5538]}, 88) = 5538 [pid 5538] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5534] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5538] <... rseq resumed>) = 0 [pid 5536] <... mmap resumed>) = 0x7f923ecd1000 [pid 5534] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5531] <... futex resumed>) = 1 [pid 5530] <... futex resumed>) = 0 [pid 5057] getdents64(4, [pid 5538] set_robust_list(0x7f923ecf19a0, 24 [pid 5536] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5534] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5531] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5530] exit_group(0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5538] <... set_robust_list resumed>) = 0 [pid 5536] <... mprotect resumed>) = 0 [pid 5535] <... ioctl resumed>) = 0 [pid 5534] <... futex resumed>) = 0 [pid 5531] <... futex resumed>) = ? [pid 5530] <... exit_group resumed>) = ? [pid 5057] getdents64(4, [pid 5538] rt_sigprocmask(SIG_SETMASK, [], [pid 5536] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5535] close(3 [pid 5534] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5531] +++ exited with 0 +++ [pid 5530] +++ exited with 0 +++ [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5538] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5536] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5535] <... close resumed>) = 0 [pid 5057] close(4 [pid 5538] memfd_create("syzkaller", 0 [pid 5536] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5535] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5530, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5057] <... close resumed>) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] rmdir("./37/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5537] munmap(0x7f92368d1000, 138412032 [pid 5058] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5539 attached [pid 5538] <... memfd_create resumed>) = 3 [pid 5537] <... munmap resumed>) = 0 [pid 5536] <... clone3 resumed> => {parent_tid=[5539]}, 88) = 5539 [pid 5535] <... mkdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5539] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5537] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5536] rt_sigprocmask(SIG_SETMASK, [], [pid 5535] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5057] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5539] <... rseq resumed>) = 0 [pid 5538] <... mmap resumed>) = 0x7f92368d1000 [pid 5537] <... openat resumed>) = 4 [pid 5536] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [ 74.887535][ T5535] loop1: detected capacity change from 0 to 1024 [pid 5539] set_robust_list(0x7f923ecf19a0, 24 [pid 5537] ioctl(4, LOOP_SET_FD, 3 [pid 5536] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... mount resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5539] <... set_robust_list resumed>) = 0 [pid 5538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5536] <... futex resumed>) = 0 [pid 5535] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5539] rt_sigprocmask(SIG_SETMASK, [], [pid 5536] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5539] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5539] memfd_create("syzkaller", 0) = 3 [pid 5538] <... write resumed>) = 524288 [pid 5539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5535] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", [pid 5057] unlink("./37/binderfs" [pid 5535] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5537] <... ioctl resumed>) = 0 [pid 5538] munmap(0x7f92368d1000, 138412032 [pid 5535] <... chdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5535] ioctl(4, LOOP_CLR_FD [pid 5058] getdents64(3, [pid 5057] getdents64(3, [pid 5535] <... ioctl resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5535] close(4) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] close(3 [pid 5537] close(3 [pid 5539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5538] <... munmap resumed>) = 0 [pid 5537] <... close resumed>) = 0 [pid 5535] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... close resumed>) = 0 [pid 5538] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5537] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] rmdir("./37" [pid 5538] <... openat resumed>) = 4 [pid 5057] <... rmdir resumed>) = 0 [pid 5538] ioctl(4, LOOP_SET_FD, 3 [pid 5537] <... mkdir resumed>) = 0 [pid 5535] <... futex resumed>) = 1 [pid 5532] <... futex resumed>) = 0 [pid 5535] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5532] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] mkdir("./38", 0777 [pid 5537] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5532] <... futex resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5532] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5535] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5539] <... write resumed>) = 524288 [pid 5057] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5057] close(3 [pid 5539] munmap(0x7f92368d1000, 138412032 [pid 5537] <... mount resumed>) = 0 [pid 5535] <... mknod resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5537] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5539] <... munmap resumed>) = 0 [pid 5058] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5539] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5537] <... openat resumed>) = 3 [pid 5535] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5540 attached [pid 5539] <... openat resumed>) = 4 [pid 5538] <... ioctl resumed>) = 0 [pid 5537] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5535] <... futex resumed>) = 1 [pid 5532] <... futex resumed>) = 0 [ 74.937424][ T5537] loop5: detected capacity change from 0 to 1024 [ 74.957941][ T5538] loop4: detected capacity change from 0 to 1024 [pid 5058] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5540] set_robust_list(0x555555d616a0, 24 [pid 5539] ioctl(4, LOOP_SET_FD, 3 [pid 5538] close(3 [pid 5537] <... chdir resumed>) = 0 [pid 5535] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5532] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5540] <... set_robust_list resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5537] ioctl(4, LOOP_CLR_FD [pid 5532] <... futex resumed>) = 0 [pid 5540] chdir("./38" [pid 5532] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5537] <... ioctl resumed>) = 0 [pid 5058] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5538] <... close resumed>) = 0 [pid 5537] close(4 [pid 5058] <... openat resumed>) = 4 [pid 5537] <... close resumed>) = 0 [pid 5538] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5537] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] newfstatat(4, "", [pid 5538] <... mkdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5540] <... chdir resumed>) = 0 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5058] getdents64(4, [pid 5540] <... prctl resumed>) = 0 [pid 5540] setpgid(0, 0) = 0 [pid 5537] <... futex resumed>) = 1 [pid 5533] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5533] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5533] <... futex resumed>) = 0 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] getdents64(4, [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5540 [pid 5538] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5533] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4 [pid 5540] <... openat resumed>) = 3 [pid 5537] <... mknod resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5540] write(3, "1000", 4 [pid 5058] <... rmdir resumed>) = 0 [pid 5058] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5540] <... write resumed>) = 4 [pid 5540] close(3 [pid 5058] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./38/binderfs" [pid 5540] <... close resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5540] symlink("/dev/binderfs", "./binderfs" [pid 5537] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5533] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5540] <... symlink resumed>) = 0 [pid 5537] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5533] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5533] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5537] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5535] <... open resumed>) = 4 [pid 5533] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... close resumed>) = 0 [pid 5540] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] <... ioctl resumed>) = 0 [pid 5538] <... mount resumed>) = 0 [pid 5537] <... open resumed>) = 4 [pid 5535] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] rmdir("./38" [pid 5540] <... futex resumed>) = 0 [pid 5537] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5532] <... futex resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5539] close(3 [pid 5538] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5540] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5537] <... futex resumed>) = 1 [pid 5535] <... futex resumed>) = 1 [pid 5533] <... futex resumed>) = 0 [pid 5532] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5540] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5538] <... openat resumed>) = 3 [pid 5537] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5535] sync( [pid 5533] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5532] <... futex resumed>) = 0 [pid 5058] mkdir("./39", 0777 [pid 5540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5539] <... close resumed>) = 0 [pid 5538] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5533] <... futex resumed>) = 0 [pid 5532] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5539] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5538] <... chdir resumed>) = 0 [pid 5537] sync( [pid 5533] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5538] ioctl(4, LOOP_CLR_FD [pid 5540] <... mmap resumed>) = 0x7f923ecd1000 [pid 5538] <... ioctl resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5540] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5538] close(4 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5540] <... mprotect resumed>) = 0 [pid 5538] <... close resumed>) = 0 [ 75.000254][ T5539] loop0: detected capacity change from 0 to 1024 [pid 5058] <... openat resumed>) = 3 [pid 5538] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5540] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5539] <... mkdir resumed>) = 0 [pid 5540] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5539] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5538] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5534] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5541 attached [pid 5538] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5534] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5541] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5541] <... rseq resumed>) = 0 [pid 5058] close(3) = 0 [pid 5541] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5540] <... clone3 resumed> => {parent_tid=[5541]}, 88) = 5541 [pid 5540] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5542 attached [pid 5541] rt_sigprocmask(SIG_SETMASK, [], [pid 5540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5542] set_robust_list(0x555555d616a0, 24 [pid 5541] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5540] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5542 [pid 5541] memfd_create("syzkaller", 0 [pid 5540] <... futex resumed>) = 0 [pid 5542] <... set_robust_list resumed>) = 0 [pid 5541] <... memfd_create resumed>) = 3 [pid 5540] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5538] <... mknod resumed>) = 0 [pid 5542] chdir("./39" [pid 5541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5538] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] <... chdir resumed>) = 0 [pid 5541] <... mmap resumed>) = 0x7f92368d1000 [pid 5538] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5538] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5534] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] <... prctl resumed>) = 0 [pid 5539] <... mount resumed>) = 0 [pid 5538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5534] <... futex resumed>) = 0 [pid 5539] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5534] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5542] setpgid(0, 0 [pid 5539] <... openat resumed>) = 3 [pid 5537] <... sync resumed>) = 0 [pid 5535] <... sync resumed>) = 0 [pid 5542] <... setpgid resumed>) = 0 [pid 5539] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5537] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5539] <... chdir resumed>) = 0 [pid 5538] <... open resumed>) = 4 [pid 5537] <... futex resumed>) = 1 [pid 5535] <... futex resumed>) = 1 [pid 5533] <... futex resumed>) = 0 [pid 5532] <... futex resumed>) = 0 [pid 5542] <... openat resumed>) = 3 [pid 5533] exit_group(0) = ? [pid 5542] write(3, "1000", 4 [pid 5532] exit_group(0 [pid 5539] ioctl(4, LOOP_CLR_FD [pid 5532] <... exit_group resumed>) = ? [pid 5542] <... write resumed>) = 4 [pid 5539] <... ioctl resumed>) = 0 [pid 5542] close(3 [pid 5541] <... write resumed>) = 524288 [pid 5539] close(4 [pid 5538] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] +++ exited with 0 +++ [pid 5535] +++ exited with 0 +++ [pid 5533] +++ exited with 0 +++ [pid 5532] +++ exited with 0 +++ [pid 5542] <... close resumed>) = 0 [pid 5539] <... close resumed>) = 0 [pid 5538] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5532, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5539] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5539] <... futex resumed>) = 1 [pid 5542] symlink("/dev/binderfs", "./binderfs" [pid 5539] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5536] <... futex resumed>) = 0 [pid 5534] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5542] <... symlink resumed>) = 0 [pid 5539] <... futex resumed>) = 0 [pid 5538] <... futex resumed>) = 0 [pid 5536] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 1 [pid 5056] <... openat resumed>) = 3 [pid 5539] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5538] sync( [pid 5536] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5534] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5056] newfstatat(3, "", [pid 5542] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5541] munmap(0x7f92368d1000, 138412032 [pid 5539] <... mknod resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5542] <... futex resumed>) = 0 [pid 5542] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5539] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5542] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5541] <... munmap resumed>) = 0 [pid 5060] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5541] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5542] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5541] <... openat resumed>) = 4 [pid 5539] <... futex resumed>) = 1 [pid 5536] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5542] <... mmap resumed>) = 0x7f923ecd1000 [pid 5541] ioctl(4, LOOP_SET_FD, 3 [pid 5539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5536] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5539] <... open resumed>) = 4 [pid 5536] <... futex resumed>) = 0 [pid 5542] <... mprotect resumed>) = 0 [pid 5541] <... ioctl resumed>) = 0 [pid 5539] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5536] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5542] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5541] close(3 [pid 5539] <... futex resumed>) = 0 [pid 5536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] newfstatat(3, "", [pid 5542] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5541] <... close resumed>) = 0 [pid 5539] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5536] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5541] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5536] <... futex resumed>) = 0 [pid 5060] getdents64(3, [pid 5541] <... mkdir resumed>) = 0 [pid 5539] sync( [pid 5536] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5542] <... clone3 resumed> => {parent_tid=[5543]}, 88) = 5543 [pid 5060] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5542] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5541] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5542] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5543 attached [pid 5541] <... mount resumed>) = 0 [pid 5543] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5541] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5539] <... sync resumed>) = 0 [pid 5538] <... sync resumed>) = 0 [pid 5543] <... rseq resumed>) = 0 [pid 5538] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5543] set_robust_list(0x7f923ecf19a0, 24 [pid 5539] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] <... futex resumed>) = 0 [pid 5534] exit_group(0 [pid 5056] <... umount2 resumed>) = 0 [pid 5543] <... set_robust_list resumed>) = 0 [pid 5541] <... openat resumed>) = 3 [pid 5539] <... futex resumed>) = 1 [pid 5536] <... futex resumed>) = 0 [pid 5534] <... exit_group resumed>) = ? [pid 5543] rt_sigprocmask(SIG_SETMASK, [], [pid 5541] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5539] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5538] +++ exited with 0 +++ [pid 5536] exit_group(0 [pid 5534] +++ exited with 0 +++ [pid 5543] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5541] <... chdir resumed>) = 0 [pid 5536] <... exit_group resumed>) = ? [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5534, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5543] memfd_create("syzkaller", 0 [pid 5541] ioctl(4, LOOP_CLR_FD [pid 5539] <... futex resumed>) = ? [pid 5543] <... memfd_create resumed>) = 3 [pid 5541] <... ioctl resumed>) = 0 [pid 5539] +++ exited with 0 +++ [pid 5536] +++ exited with 0 +++ [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5536, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5541] close(4 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5541] <... close resumed>) = 0 [pid 5541] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5540] <... futex resumed>) = 0 [ 75.137103][ T5541] loop2: detected capacity change from 0 to 1024 [pid 5055] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5541] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5540] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5543] <... mmap resumed>) = 0x7f92368d1000 [pid 5540] <... futex resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5540] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5543] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(3, [pid 5543] <... write resumed>) = 524288 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(3, "", [pid 5056] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(4, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(3, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5541] <... mknod resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(4, [pid 5060] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5543] munmap(0x7f92368d1000, 138412032 [pid 5060] <... openat resumed>) = 4 [pid 5056] getdents64(4, [pid 5543] <... munmap resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5543] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] close(4 [pid 5543] <... openat resumed>) = 4 [pid 5056] <... close resumed>) = 0 [pid 5541] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5541] <... futex resumed>) = 1 [pid 5540] <... futex resumed>) = 0 [pid 5541] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5540] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5543] ioctl(4, LOOP_SET_FD, 3 [pid 5540] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, [pid 5056] <... rmdir resumed>) = 0 [pid 5541] <... open resumed>) = 4 [pid 5541] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = 0 [pid 5540] <... futex resumed>) = 0 [pid 5540] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5540] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5541] <... futex resumed>) = 1 [pid 5541] sync( [pid 5056] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... close resumed>) = 0 [pid 5056] unlink("./39/binderfs" [pid 5060] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... unlink resumed>) = 0 [pid 5055] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... rmdir resumed>) = 0 [pid 5059] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(3 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... openat resumed>) = 4 [pid 5060] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5543] <... ioctl resumed>) = 0 [pid 5541] <... sync resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./39" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5543] close(3 [pid 5541] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] unlink("./39/binderfs" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5541] <... futex resumed>) = 1 [pid 5540] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... rmdir resumed>) = 0 [pid 5055] getdents64(4, [pid 5541] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5540] exit_group(0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5056] mkdir("./40", 0777 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5543] <... close resumed>) = 0 [pid 5541] <... futex resumed>) = ? [pid 5540] <... exit_group resumed>) = ? [pid 5060] getdents64(3, [pid 5059] newfstatat(4, "", [pid 5543] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5541] +++ exited with 0 +++ [pid 5540] +++ exited with 0 +++ [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5055] close(4 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5543] <... mkdir resumed>) = 0 [pid 5055] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5543] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] getdents64(4, [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5057] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5059] getdents64(4, [pid 5057] <... openat resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] unlink("./39/binderfs" [pid 5057] getdents64(3, [pid 5055] <... unlink resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5057] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] getdents64(3, [pid 5060] close(3 [pid 5059] close(4 [pid 5057] newfstatat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] rmdir("./39" [ 75.226291][ T5543] loop3: detected capacity change from 0 to 1024 [pid 5059] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] umount2("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5059] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5060] mkdir("./40", 0777 [pid 5059] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] unlink("./38/binderfs" [pid 5056] close(3 [pid 5059] <... unlink resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5055] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5544 attached [pid 5543] <... mount resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] getdents64(3, [pid 5057] openat(AT_FDCWD, "./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5543] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] <... openat resumed>) = 4 [pid 5055] rmdir("./39" [pid 5059] close(3 [pid 5543] <... openat resumed>) = 3 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5543] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5543] ioctl(4, LOOP_CLR_FD) = 0 [pid 5059] rmdir("./38" [pid 5055] <... rmdir resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] newfstatat(4, "", [pid 5543] close(4 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5543] <... close resumed>) = 0 [pid 5060] close(3 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5055] mkdir("./40", 0777 [pid 5060] <... close resumed>) = 0 [pid 5544] set_robust_list(0x555555d616a0, 24 [pid 5543] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... mkdir resumed>) = 0 [pid 5544] <... set_robust_list resumed>) = 0 [pid 5543] <... futex resumed>) = 1 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5544 [pid 5543] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5545 attached [pid 5544] chdir("./40" [pid 5542] <... futex resumed>) = 0 [pid 5057] getdents64(4, [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5544] <... chdir resumed>) = 0 [pid 5542] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] mkdir("./39", 0777 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5545] set_robust_list(0x555555d616a0, 24 [pid 5055] <... openat resumed>) = 3 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5545 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5543] <... futex resumed>) = 0 [pid 5542] <... futex resumed>) = 1 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5057] close(4 [pid 5545] <... set_robust_list resumed>) = 0 [pid 5544] <... prctl resumed>) = 0 [pid 5543] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5542] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5545] chdir("./40" [pid 5544] setpgid(0, 0 [pid 5543] <... mknod resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5545] <... chdir resumed>) = 0 [pid 5544] <... setpgid resumed>) = 0 [pid 5543] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] rmdir("./38/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] close(3 [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5542] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... openat resumed>) = 3 [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... openat resumed>) = 3 [pid 5543] <... futex resumed>) = 0 [pid 5542] <... futex resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5545] setpgid(0, 0 [pid 5544] write(3, "1000", 4 [pid 5543] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5542] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5545] <... setpgid resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5546 attached [pid 5544] <... write resumed>) = 4 [pid 5059] close(3 [pid 5057] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5546] set_robust_list(0x555555d616a0, 24 [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5546] <... set_robust_list resumed>) = 0 [pid 5546] chdir("./40" [pid 5545] <... openat resumed>) = 3 [pid 5544] close(3 [pid 5543] <... open resumed>) = 4 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] unlink("./38/binderfs" [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5546 [pid 5546] <... chdir resumed>) = 0 [pid 5545] write(3, "1000", 4 [pid 5544] <... close resumed>) = 0 [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] <... write resumed>) = 4 [pid 5544] symlink("/dev/binderfs", "./binderfs" [pid 5057] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5547 attached [pid 5546] <... prctl resumed>) = 0 [pid 5545] close(3 [pid 5544] <... symlink resumed>) = 0 [pid 5543] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5547] set_robust_list(0x555555d616a0, 24 [pid 5546] setpgid(0, 0 [pid 5545] <... close resumed>) = 0 [pid 5544] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5543] <... futex resumed>) = 1 [pid 5542] <... futex resumed>) = 0 [pid 5547] <... set_robust_list resumed>) = 0 [pid 5546] <... setpgid resumed>) = 0 [pid 5545] symlink("/dev/binderfs", "./binderfs" [pid 5544] <... futex resumed>) = 0 [pid 5543] sync( [pid 5542] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5547] chdir("./39" [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5545] <... symlink resumed>) = 0 [pid 5544] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5542] <... futex resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5547 [pid 5057] close(3 [pid 5547] <... chdir resumed>) = 0 [pid 5546] <... openat resumed>) = 3 [pid 5545] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5544] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5542] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... close resumed>) = 0 [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5546] write(3, "1000", 4 [pid 5545] <... futex resumed>) = 0 [pid 5544] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] rmdir("./38" [pid 5547] <... prctl resumed>) = 0 [pid 5546] <... write resumed>) = 4 [pid 5545] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5544] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5547] setpgid(0, 0 [pid 5546] close(3 [pid 5545] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5547] <... setpgid resumed>) = 0 [pid 5546] <... close resumed>) = 0 [pid 5545] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5544] <... mmap resumed>) = 0x7f923ecd1000 [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] symlink("/dev/binderfs", "./binderfs" [pid 5545] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5544] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] mkdir("./39", 0777 [pid 5545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5544] <... mprotect resumed>) = 0 [pid 5543] <... sync resumed>) = 0 [pid 5546] <... symlink resumed>) = 0 [pid 5545] <... mmap resumed>) = 0x7f923ecd1000 [pid 5544] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5543] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5547] <... openat resumed>) = 3 [pid 5546] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5545] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5544] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5543] <... futex resumed>) = 1 [pid 5542] <... futex resumed>) = 0 [pid 5546] <... futex resumed>) = 0 [pid 5545] <... mprotect resumed>) = 0 [pid 5544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5543] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5542] exit_group(0 [pid 5057] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5548 attached [pid 5547] write(3, "1000", 4 [pid 5546] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5545] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5543] <... futex resumed>) = ? [pid 5542] <... exit_group resumed>) = ? [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5548] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5547] <... write resumed>) = 4 [pid 5546] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5545] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5544] <... clone3 resumed> => {parent_tid=[5548]}, 88) = 5548 [pid 5543] +++ exited with 0 +++ [pid 5542] +++ exited with 0 +++ [pid 5057] <... openat resumed>) = 3 [pid 5548] <... rseq resumed>) = 0 [pid 5547] close(3 [pid 5546] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5545] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5544] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5548] set_robust_list(0x7f923ecf19a0, 24 [pid 5547] <... close resumed>) = 0 [pid 5546] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5544] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5549 attached [pid 5548] <... set_robust_list resumed>) = 0 [pid 5547] symlink("/dev/binderfs", "./binderfs" [pid 5546] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5545] <... clone3 resumed> => {parent_tid=[5549]}, 88) = 5549 [pid 5544] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(3 [pid 5549] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5548] rt_sigprocmask(SIG_SETMASK, [], [pid 5547] <... symlink resumed>) = 0 [pid 5546] <... mmap resumed>) = 0x7f923ecd1000 [pid 5545] rt_sigprocmask(SIG_SETMASK, [], [pid 5544] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... close resumed>) = 0 [pid 5549] <... rseq resumed>) = 0 [pid 5548] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5547] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5546] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5545] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5544] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5549] set_robust_list(0x7f923ecf19a0, 24 [pid 5548] memfd_create("syzkaller", 0 [pid 5547] <... futex resumed>) = 0 [pid 5546] <... mprotect resumed>) = 0 [pid 5545] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5549] <... set_robust_list resumed>) = 0 [pid 5548] <... memfd_create resumed>) = 3 [pid 5547] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5545] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5550 attached [pid 5549] rt_sigprocmask(SIG_SETMASK, [], [pid 5548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5547] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5546] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] newfstatat(3, "", [pid 5550] set_robust_list(0x555555d616a0, 24 [pid 5549] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5548] <... mmap resumed>) = 0x7f92368d1000 [pid 5547] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5546] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5550 [pid 5550] <... set_robust_list resumed>) = 0 [pid 5549] memfd_create("syzkaller", 0 [pid 5547] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5546] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] getdents64(3, [pid 5549] <... memfd_create resumed>) = 3 [pid 5548] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5547] <... mmap resumed>) = 0x7f923ecd1000 [pid 5547] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] chdir("./39" [pid 5547] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 5551 attached [pid 5549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5547] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5551] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5550] <... chdir resumed>) = 0 [pid 5549] <... write resumed>) = 524288 [pid 5546] <... clone3 resumed> => {parent_tid=[5551]}, 88) = 5551 [pid 5551] <... rseq resumed>) = 0 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5548] <... write resumed>) = 524288 [pid 5547] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5546] rt_sigprocmask(SIG_SETMASK, [], [pid 5550] <... prctl resumed>) = 0 [pid 5546] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5550] setpgid(0, 0 [pid 5546] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5550] <... setpgid resumed>) = 0 [pid 5551] set_robust_list(0x7f923ecf19a0, 24 [pid 5547] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5546] <... futex resumed>) = 0 [pid 5551] <... set_robust_list resumed>) = 0 [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = 0 [pid 5551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5550] <... openat resumed>) = 3 [pid 5551] memfd_create("syzkaller", 0 [pid 5550] write(3, "1000", 4 [pid 5549] munmap(0x7f92368d1000, 138412032 [pid 5547] <... clone3 resumed> => {parent_tid=[5552]}, 88) = 5552 [pid 5058] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5551] <... memfd_create resumed>) = 3 [pid 5550] <... write resumed>) = 4 [pid 5547] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5550] close(3 [pid 5058] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5550] <... close resumed>) = 0 ./strace-static-x86_64: Process 5552 attached [pid 5550] symlink("/dev/binderfs", "./binderfs" [pid 5549] <... munmap resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5552] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5551] <... mmap resumed>) = 0x7f92368d1000 [pid 5550] <... symlink resumed>) = 0 [pid 5549] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5552] <... rseq resumed>) = 0 [pid 5549] <... openat resumed>) = 4 [pid 5058] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] set_robust_list(0x7f923ecf19a0, 24 [pid 5549] ioctl(4, LOOP_SET_FD, 3 [pid 5547] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] <... set_robust_list resumed>) = 0 [pid 5551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5550] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5552] rt_sigprocmask(SIG_SETMASK, [], [pid 5548] munmap(0x7f92368d1000, 138412032 [pid 5547] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5552] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5548] <... munmap resumed>) = 0 [pid 5547] <... futex resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5552] memfd_create("syzkaller", 0 [pid 5548] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5547] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] newfstatat(4, "", [pid 5552] <... memfd_create resumed>) = 3 [pid 5550] <... futex resumed>) = 0 [pid 5548] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5550] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5548] ioctl(4, LOOP_SET_FD, 3 [pid 5552] <... mmap resumed>) = 0x7f92368d1000 [pid 5551] <... write resumed>) = 524288 [pid 5550] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] getdents64(4, [pid 5551] munmap(0x7f92368d1000, 138412032 [pid 5550] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5549] <... ioctl resumed>) = 0 [pid 5548] <... ioctl resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5551] <... munmap resumed>) = 0 [pid 5550] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5549] close(3 [pid 5548] close(3 [pid 5058] getdents64(4, [pid 5551] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5549] <... close resumed>) = 0 [pid 5548] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5551] <... openat resumed>) = 4 [pid 5550] <... mmap resumed>) = 0x7f923ecd1000 [pid 5549] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5548] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] close(4 [pid 5550] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... close resumed>) = 0 [pid 5552] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5551] ioctl(4, LOOP_SET_FD, 3 [pid 5550] <... mprotect resumed>) = 0 [pid 5549] <... mkdir resumed>) = 0 [pid 5548] <... mkdir resumed>) = 0 [pid 5058] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5552] <... write resumed>) = 524288 [pid 5552] munmap(0x7f92368d1000, 138412032) = 0 [pid 5551] <... ioctl resumed>) = 0 [pid 5550] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5549] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5548] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... rmdir resumed>) = 0 [pid 5058] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5552] ioctl(4, LOOP_SET_FD, 3 [pid 5551] close(3 [pid 5550] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5549] <... mount resumed>) = 0 [pid 5548] <... mount resumed>) = 0 [ 75.449531][ T5549] loop5: detected capacity change from 0 to 1024 [ 75.462196][ T5548] loop1: detected capacity change from 0 to 1024 [ 75.478160][ T5551] loop0: detected capacity change from 0 to 1024 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5549] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5548] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5549] <... openat resumed>) = 3 [pid 5548] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5549] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] unlink("./39/binderfs" [pid 5549] <... chdir resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5058] getdents64(3, [pid 5549] ioctl(4, LOOP_CLR_FD [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3 [pid 5549] <... ioctl resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5549] close(4 [pid 5058] rmdir("./39" [pid 5549] <... close resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5549] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] mkdir("./40", 0777 [pid 5549] <... futex resumed>) = 1 [pid 5545] <... futex resumed>) = 0 [pid 5545] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... mkdir resumed>) = 0 [pid 5549] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5545] <... futex resumed>) = 0 [pid 5548] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5552] <... ioctl resumed>) = 0 [pid 5551] <... close resumed>) = 0 [pid 5550] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5548] <... chdir resumed>) = 0 [pid 5545] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5553 attached [pid 5552] close(3 [pid 5551] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5548] ioctl(4, LOOP_CLR_FD [pid 5549] <... mknod resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5553] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5552] <... close resumed>) = 0 [pid 5551] <... mkdir resumed>) = 0 [pid 5550] <... clone3 resumed> => {parent_tid=[5553]}, 88) = 5553 [pid 5548] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5553] <... rseq resumed>) = 0 [pid 5552] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5551] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5550] rt_sigprocmask(SIG_SETMASK, [], [pid 5549] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5548] close(4 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5553] set_robust_list(0x7f923ecf19a0, 24 [pid 5552] <... mkdir resumed>) = 0 [pid 5550] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5549] <... futex resumed>) = 1 [pid 5548] <... close resumed>) = 0 [pid 5545] <... futex resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5553] <... set_robust_list resumed>) = 0 [pid 5550] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5549] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5548] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5545] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] close(3 [pid 5553] rt_sigprocmask(SIG_SETMASK, [], [pid 5550] <... futex resumed>) = 0 [pid 5548] <... futex resumed>) = 1 [pid 5544] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5553] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5551] <... mount resumed>) = 0 [pid 5550] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5548] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5545] <... futex resumed>) = 0 [pid 5544] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5553] memfd_create("syzkaller", 0 [pid 5552] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5551] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5548] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5545] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5544] <... futex resumed>) = 0 [pid 5553] <... memfd_create resumed>) = 3 [pid 5551] <... openat resumed>) = 3 [pid 5549] <... open resumed>) = 4 [pid 5548] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5544] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5551] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5553] <... mmap resumed>) = 0x7f92368d1000 [pid 5551] <... chdir resumed>) = 0 [pid 5548] <... mknod resumed>) = 0 [pid 5551] ioctl(4, LOOP_CLR_FD [pid 5548] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5554 attached [pid 5551] <... ioctl resumed>) = 0 [pid 5549] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5548] <... futex resumed>) = 1 [pid 5544] <... futex resumed>) = 0 [pid 5551] close(4 [pid 5548] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5544] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] set_robust_list(0x555555d616a0, 24 [pid 5551] <... close resumed>) = 0 [pid 5549] <... futex resumed>) = 1 [pid 5545] <... futex resumed>) = 0 [pid 5544] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5554 [pid 5554] <... set_robust_list resumed>) = 0 [pid 5551] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5549] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5545] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5544] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] chdir("./40" [pid 5553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5552] <... mount resumed>) = 0 [pid 5551] <... futex resumed>) = 1 [pid 5549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5546] <... futex resumed>) = 0 [pid 5545] <... futex resumed>) = 0 [pid 5551] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5546] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5545] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... chdir resumed>) = 0 [pid 5552] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5549] sync( [pid 5546] <... futex resumed>) = 0 [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5552] <... openat resumed>) = 3 [pid 5548] <... open resumed>) = 4 [pid 5546] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... prctl resumed>) = 0 [pid 5552] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5548] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [ 75.498955][ T5552] loop4: detected capacity change from 0 to 1024 [pid 5554] setpgid(0, 0 [pid 5552] <... chdir resumed>) = 0 [pid 5551] <... mknod resumed>) = 0 [pid 5548] <... futex resumed>) = 1 [pid 5544] <... futex resumed>) = 0 [pid 5554] <... setpgid resumed>) = 0 [pid 5552] ioctl(4, LOOP_CLR_FD [pid 5551] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5548] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5544] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5552] <... ioctl resumed>) = 0 [pid 5551] <... futex resumed>) = 1 [pid 5548] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5546] <... futex resumed>) = 0 [pid 5544] <... futex resumed>) = 0 [pid 5554] <... openat resumed>) = 3 [pid 5552] close(4 [pid 5551] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5548] sync( [pid 5546] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5544] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5553] <... write resumed>) = 524288 [pid 5552] <... close resumed>) = 0 [pid 5546] <... futex resumed>) = 0 [pid 5554] write(3, "1000", 4 [pid 5552] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5546] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5553] munmap(0x7f92368d1000, 138412032 [pid 5554] <... write resumed>) = 4 [pid 5552] <... futex resumed>) = 1 [pid 5551] <... open resumed>) = 4 [pid 5547] <... futex resumed>) = 0 [pid 5554] close(3 [pid 5553] <... munmap resumed>) = 0 [pid 5552] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5547] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... close resumed>) = 0 [pid 5552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5547] <... futex resumed>) = 0 [pid 5554] symlink("/dev/binderfs", "./binderfs" [pid 5552] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5551] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5547] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... symlink resumed>) = 0 [pid 5553] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5551] <... futex resumed>) = 1 [pid 5546] <... futex resumed>) = 0 [pid 5554] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5553] <... openat resumed>) = 4 [pid 5551] sync( [pid 5546] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... futex resumed>) = 0 [pid 5553] ioctl(4, LOOP_SET_FD, 3 [pid 5552] <... mknod resumed>) = 0 [pid 5546] <... futex resumed>) = 0 [pid 5546] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5552] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5549] <... sync resumed>) = 0 [pid 5545] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5554] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5549] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5545] exit_group(0 [pid 5554] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5552] <... futex resumed>) = 1 [pid 5549] <... futex resumed>) = 1 [pid 5554] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5552] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5549] +++ exited with 0 +++ [pid 5547] <... futex resumed>) = 0 [pid 5545] <... exit_group resumed>) = ? [pid 5554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5553] <... ioctl resumed>) = 0 [pid 5547] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... mmap resumed>) = 0x7f923ecd1000 [pid 5553] close(3 [pid 5552] <... futex resumed>) = 0 [pid 5551] <... sync resumed>) = 0 [pid 5548] <... sync resumed>) = 0 [pid 5547] <... futex resumed>) = 1 [pid 5554] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5553] <... close resumed>) = 0 [pid 5552] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5551] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5548] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5547] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... mprotect resumed>) = 0 [pid 5553] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5552] <... open resumed>) = 4 [pid 5551] <... futex resumed>) = 1 [pid 5548] <... futex resumed>) = 1 [pid 5546] <... futex resumed>) = 0 [pid 5545] +++ exited with 0 +++ [pid 5544] <... futex resumed>) = 0 [pid 5546] exit_group(0 [pid 5544] exit_group(0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5551] +++ exited with 0 +++ [pid 5548] +++ exited with 0 +++ [pid 5546] <... exit_group resumed>) = ? [pid 5544] <... exit_group resumed>) = ? [pid 5554] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5553] <... mkdir resumed>) = 0 [pid 5546] +++ exited with 0 +++ [pid 5554] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5546, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5554] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5553] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5552] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5544] +++ exited with 0 +++ [pid 5552] <... futex resumed>) = 1 [pid 5547] <... futex resumed>) = 0 [pid 5060] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5547] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5544, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5547] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] restart_syscall(<... resuming interrupted clone ...> [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5552] sync( [pid 5547] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... openat resumed>) = 3 [pid 5056] <... restart_syscall resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5555 attached ) = 3 [pid 5555] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5554] <... clone3 resumed> => {parent_tid=[5555]}, 88) = 5555 [pid 5060] newfstatat(3, "", [pid 5554] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5554] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5554] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5555] <... rseq resumed>) = 0 [pid 5056] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(3, "", [pid 5555] set_robust_list(0x7f923ecf19a0, 24 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5555] <... set_robust_list resumed>) = 0 [pid 5554] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5553] <... mount resumed>) = 0 [pid 5060] getdents64(3, [pid 5056] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(3, [pid 5555] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... openat resumed>) = 3 [pid 5555] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] newfstatat(3, "", [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5555] memfd_create("syzkaller", 0 [pid 5553] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... memfd_create resumed>) = 3 [pid 5553] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5555] <... mmap resumed>) = 0x7f92368d1000 [ 75.586496][ T5553] loop2: detected capacity change from 0 to 1024 [pid 5553] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5552] <... sync resumed>) = 0 [pid 5056] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] ioctl(4, LOOP_CLR_FD [pid 5552] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5553] <... ioctl resumed>) = 0 [pid 5552] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5553] close(4 [pid 5547] <... futex resumed>) = 0 [pid 5553] <... close resumed>) = 0 [pid 5553] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5550] <... futex resumed>) = 0 [pid 5550] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5553] <... futex resumed>) = 1 [pid 5550] <... futex resumed>) = 0 [pid 5547] exit_group(0 [pid 5553] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5550] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5553] <... mknod resumed>) = 0 [pid 5552] <... futex resumed>) = ? [pid 5547] <... exit_group resumed>) = ? [pid 5060] <... umount2 resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5552] +++ exited with 0 +++ [pid 5553] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5547] +++ exited with 0 +++ [pid 5055] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5553] <... futex resumed>) = 1 [pid 5550] <... futex resumed>) = 0 [pid 5553] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5547, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5550] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... futex resumed>) = 0 [pid 5553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5550] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5055] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(3, "", [pid 5555] <... write resumed>) = 524288 [pid 5553] <... open resumed>) = 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] getdents64(3, [pid 5553] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5055] newfstatat(4, "", [pid 5553] <... futex resumed>) = 1 [pid 5059] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5550] <... futex resumed>) = 0 [pid 5550] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5550] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5555] munmap(0x7f92368d1000, 138412032 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5555] <... munmap resumed>) = 0 [pid 5055] getdents64(4, [pid 5553] sync( [pid 5059] <... umount2 resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5555] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5555] <... openat resumed>) = 4 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... rmdir resumed>) = 0 [pid 5555] ioctl(4, LOOP_SET_FD, 3 [pid 5060] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5555] <... ioctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 4 [pid 5055] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(4, "", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5059] getdents64(4, [pid 5060] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] getdents64(4, [pid 5060] newfstatat(4, "", [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] unlink("./40/binderfs" [pid 5059] close(4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... close resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5056] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5550] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] getdents64(4, [pid 5059] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... openat resumed>) = 4 [pid 5055] getdents64(3, [pid 5553] <... sync resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5555] close(3 [pid 5553] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(4, [pid 5059] <... rmdir resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5055] close(3 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5060] close(4 [pid 5055] rmdir("./40" [pid 5060] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5060] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] mkdir("./41", 0777 [pid 5555] <... close resumed>) = 0 [pid 5553] <... futex resumed>) = 0 [pid 5550] exit_group(0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5555] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5550] <... exit_group resumed>) = ? [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 75.703889][ T5555] loop3: detected capacity change from 0 to 1024 [pid 5555] <... mkdir resumed>) = 0 [pid 5553] +++ exited with 0 +++ [pid 5550] +++ exited with 0 +++ [pid 5060] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5056] getdents64(4, [pid 5055] <... mkdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5555] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5059] unlink("./39/binderfs" [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5550, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5056] getdents64(4, [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5555] <... mount resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5555] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5060] unlink("./40/binderfs" [pid 5059] getdents64(3, [pid 5057] <... restart_syscall resumed>) = 0 [pid 5056] close(4 [pid 5555] <... openat resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5060] <... unlink resumed>) = 0 [pid 5555] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(3, [pid 5059] close(3 [pid 5056] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5555] <... chdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5555] ioctl(4, LOOP_CLR_FD [pid 5059] rmdir("./39" [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5555] <... ioctl resumed>) = 0 [pid 5060] close(3 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5555] close(4 [pid 5060] <... close resumed>) = 0 [pid 5059] mkdir("./40", 0777 [pid 5057] <... openat resumed>) = 3 [pid 5056] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5060] rmdir("./40" [pid 5059] <... mkdir resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5555] <... close resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] unlink("./40/binderfs" [pid 5555] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5057] getdents64(3, [pid 5056] <... unlink resumed>) = 0 [pid 5055] close(3 [pid 5555] <... futex resumed>) = 1 [pid 5554] <... futex resumed>) = 0 [pid 5060] mkdir("./41", 0777 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(3, [pid 5055] <... close resumed>) = 0 [pid 5555] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5554] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5555] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5554] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5056] close(3 [pid 5555] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5554] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5556 attached [pid 5556] set_robust_list(0x555555d616a0, 24) = 0 [pid 5056] rmdir("./40" [pid 5556] chdir("./41" [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5556 [pid 5556] <... chdir resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] mkdir("./41", 0777 [pid 5555] <... mknod resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5056] <... mkdir resumed>) = 0 [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5555] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5556] setpgid(0, 0 [pid 5555] <... futex resumed>) = 1 [pid 5056] <... openat resumed>) = 3 [pid 5556] <... setpgid resumed>) = 0 [pid 5555] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5554] <... futex resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5554] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5557 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5557 attached [pid 5556] <... openat resumed>) = 3 [pid 5555] <... futex resumed>) = 0 [pid 5554] <... futex resumed>) = 1 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] close(3 [pid 5557] set_robust_list(0x555555d616a0, 24 [pid 5556] write(3, "1000", 4 [pid 5555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5554] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... close resumed>) = 0 [pid 5557] <... set_robust_list resumed>) = 0 [pid 5556] <... write resumed>) = 4 [pid 5555] <... open resumed>) = 4 [pid 5060] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5557] chdir("./40" [pid 5556] close(3 [pid 5060] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5557] <... chdir resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5559 attached ./strace-static-x86_64: Process 5558 attached [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] <... close resumed>) = 0 [pid 5057] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5555] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5557] <... prctl resumed>) = 0 [pid 5556] symlink("/dev/binderfs", "./binderfs" [pid 5554] <... futex resumed>) = 0 [pid 5558] set_robust_list(0x555555d616a0, 24 [pid 5557] setpgid(0, 0) = 0 [pid 5558] <... set_robust_list resumed>) = 0 [pid 5556] <... symlink resumed>) = 0 [pid 5554] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5558 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5555] <... futex resumed>) = 0 [pid 5554] <... futex resumed>) = 1 [pid 5057] newfstatat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5559 [pid 5558] chdir("./41" [pid 5557] <... openat resumed>) = 3 [pid 5555] sync( [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5558] <... chdir resumed>) = 0 [pid 5557] write(3, "1000", 4 [pid 5057] umount2("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] set_robust_list(0x555555d616a0, 24 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... write resumed>) = 4 [pid 5554] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] <... set_robust_list resumed>) = 0 [pid 5558] <... prctl resumed>) = 0 [pid 5557] close(3 [pid 5556] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5559] chdir("./41" [pid 5556] <... futex resumed>) = 0 [pid 5057] openat(AT_FDCWD, "./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5558] setpgid(0, 0 [pid 5557] <... close resumed>) = 0 [pid 5556] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... openat resumed>) = 4 [pid 5559] <... chdir resumed>) = 0 [pid 5558] <... setpgid resumed>) = 0 [pid 5557] symlink("/dev/binderfs", "./binderfs" [pid 5556] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] newfstatat(4, "", [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] <... symlink resumed>) = 0 [pid 5556] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5559] <... prctl resumed>) = 0 [pid 5556] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] getdents64(4, [pid 5559] setpgid(0, 0 [pid 5558] <... openat resumed>) = 3 [pid 5557] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5559] <... setpgid resumed>) = 0 [pid 5558] write(3, "1000", 4 [pid 5557] <... futex resumed>) = 0 [pid 5556] <... mmap resumed>) = 0x7f923ecd1000 [pid 5057] getdents64(4, [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5556] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5559] <... openat resumed>) = 3 [pid 5558] <... write resumed>) = 4 [pid 5557] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5556] <... mprotect resumed>) = 0 [pid 5555] <... sync resumed>) = 0 [pid 5057] close(4 [pid 5559] write(3, "1000", 4 [pid 5558] close(3 [pid 5557] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5556] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5555] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... close resumed>) = 0 [pid 5559] <... write resumed>) = 4 [pid 5558] <... close resumed>) = 0 [pid 5557] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5556] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5555] <... futex resumed>) = 1 [pid 5554] <... futex resumed>) = 0 [pid 5057] rmdir("./39/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5559] close(3 [pid 5558] symlink("/dev/binderfs", "./binderfs" [pid 5557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5556] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5555] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5554] exit_group(0 [pid 5057] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5560 attached [pid 5559] <... close resumed>) = 0 [pid 5558] <... symlink resumed>) = 0 [pid 5557] <... mmap resumed>) = 0x7f923ecd1000 [pid 5555] <... futex resumed>) = ? [pid 5554] <... exit_group resumed>) = ? [pid 5057] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5560] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5559] symlink("/dev/binderfs", "./binderfs" [pid 5558] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5557] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5556] <... clone3 resumed> => {parent_tid=[5560]}, 88) = 5560 [pid 5555] +++ exited with 0 +++ [pid 5554] +++ exited with 0 +++ [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5560] <... rseq resumed>) = 0 [pid 5559] <... symlink resumed>) = 0 [pid 5558] <... futex resumed>) = 0 [pid 5556] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5554, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5057] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5557] <... mprotect resumed>) = 0 [pid 5560] set_robust_list(0x7f923ecf19a0, 24 [pid 5559] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5558] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5556] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5560] <... set_robust_list resumed>) = 0 [pid 5559] <... futex resumed>) = 0 [pid 5558] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5557] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5556] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5057] unlink("./39/binderfs" [pid 5560] rt_sigprocmask(SIG_SETMASK, [], [pid 5559] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5557] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5556] <... futex resumed>) = 0 [pid 5560] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5559] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5558] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5557] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5556] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... unlink resumed>) = 0 [pid 5560] memfd_create("syzkaller", 0 [pid 5559] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, ./strace-static-x86_64: Process 5561 attached [pid 5560] <... memfd_create resumed>) = 3 [pid 5559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5561] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5558] <... mmap resumed>) = 0x7f923ecd1000 [pid 5557] <... clone3 resumed> => {parent_tid=[5561]}, 88) = 5561 [pid 5058] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5561] <... rseq resumed>) = 0 [pid 5560] <... mmap resumed>) = 0x7f92368d1000 [pid 5559] <... mmap resumed>) = 0x7f923ecd1000 [pid 5558] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... openat resumed>) = 3 [pid 5057] close(3 [pid 5561] set_robust_list(0x7f923ecf19a0, 24 [pid 5559] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5558] <... mprotect resumed>) = 0 [pid 5557] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] newfstatat(3, "", [pid 5557] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5561] <... set_robust_list resumed>) = 0 [pid 5559] <... mprotect resumed>) = 0 [pid 5558] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5557] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... close resumed>) = 0 [pid 5561] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(3, [pid 5057] rmdir("./39" [pid 5557] <... futex resumed>) = 0 [pid 5558] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5561] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5559] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5557] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5561] memfd_create("syzkaller", 0 [pid 5560] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5559] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5561] <... memfd_create resumed>) = 3 [pid 5561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5057] mkdir("./40", 0777./strace-static-x86_64: Process 5562 attached [pid 5561] <... mmap resumed>) = 0x7f92368d1000 [pid 5558] <... clone3 resumed> => {parent_tid=[5562]}, 88) = 5562 [pid 5057] <... mkdir resumed>) = 0 [pid 5562] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5559] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5558] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5563 attached [pid 5559] <... clone3 resumed> => {parent_tid=[5563]}, 88) = 5563 [pid 5058] <... umount2 resumed>) = 0 [pid 5562] <... rseq resumed>) = 0 [pid 5558] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5563] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5562] set_robust_list(0x7f923ecf19a0, 24 [pid 5559] rt_sigprocmask(SIG_SETMASK, [], [pid 5558] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5562] <... set_robust_list resumed>) = 0 [pid 5558] <... futex resumed>) = 0 [pid 5562] rt_sigprocmask(SIG_SETMASK, [], [pid 5558] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5562] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5563] <... rseq resumed>) = 0 [pid 5562] memfd_create("syzkaller", 0 [pid 5561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5562] <... memfd_create resumed>) = 3 [pid 5562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5563] set_robust_list(0x7f923ecf19a0, 24 [pid 5562] <... mmap resumed>) = 0x7f92368d1000 [pid 5559] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5563] <... set_robust_list resumed>) = 0 [pid 5559] <... futex resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5563] rt_sigprocmask(SIG_SETMASK, [], [pid 5559] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5563] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(3 [pid 5563] memfd_create("syzkaller", 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... close resumed>) = 0 [pid 5563] <... memfd_create resumed>) = 3 [pid 5563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5560] <... write resumed>) = 524288 [pid 5058] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5563] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] <... openat resumed>) = 4 [pid 5563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] newfstatat(4, "", ./strace-static-x86_64: Process 5564 attached [pid 5560] munmap(0x7f92368d1000, 138412032 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5560] <... munmap resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5564 [pid 5564] set_robust_list(0x555555d616a0, 24 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5564] <... set_robust_list resumed>) = 0 [pid 5560] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] getdents64(4, [pid 5564] chdir("./40" [pid 5560] <... openat resumed>) = 4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5564] <... chdir resumed>) = 0 [pid 5561] <... write resumed>) = 524288 [pid 5560] ioctl(4, LOOP_SET_FD, 3 [pid 5058] close(4 [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5561] munmap(0x7f92368d1000, 138412032 [pid 5058] <... close resumed>) = 0 [pid 5561] <... munmap resumed>) = 0 [pid 5058] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5564] setpgid(0, 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5564] <... setpgid resumed>) = 0 [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5564] <... openat resumed>) = 3 [pid 5563] <... write resumed>) = 524288 [pid 5562] <... write resumed>) = 524288 [pid 5561] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5564] write(3, "1000", 4 [pid 5561] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5564] <... write resumed>) = 4 [pid 5561] ioctl(4, LOOP_SET_FD, 3 [pid 5058] unlink("./40/binderfs" [pid 5564] close(3 [pid 5562] munmap(0x7f92368d1000, 138412032 [pid 5058] <... unlink resumed>) = 0 [pid 5564] <... close resumed>) = 0 [pid 5564] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5564] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5563] munmap(0x7f92368d1000, 138412032 [pid 5562] <... munmap resumed>) = 0 [pid 5564] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5563] <... munmap resumed>) = 0 [pid 5562] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] getdents64(3, [pid 5564] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5563] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5562] <... openat resumed>) = 4 [pid 5560] <... ioctl resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5562] ioctl(4, LOOP_SET_FD, 3 [pid 5564] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5563] <... openat resumed>) = 4 [pid 5560] close(3 [pid 5058] close(3 [pid 5564] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5563] ioctl(4, LOOP_SET_FD, 3 [pid 5560] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5560] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] rmdir("./40" [pid 5564] <... mmap resumed>) = 0x7f923ecd1000 [pid 5562] <... ioctl resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5564] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5562] close(3 [pid 5560] <... mkdir resumed>) = 0 [pid 5058] mkdir("./41", 0777 [pid 5564] <... mprotect resumed>) = 0 [pid 5562] <... close resumed>) = 0 [pid 5561] <... ioctl resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5564] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5562] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5561] close(3 [pid 5560] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5561] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5562] <... mkdir resumed>) = 0 [pid 5561] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5562] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5564] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5562] <... mount resumed>) = 0 [pid 5561] <... mkdir resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5561] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] close(3 [pid 5562] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5564] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5562] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5562] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5562] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 5565 attached ) = 0 [pid 5562] close(4) = 0 [pid 5564] <... clone3 resumed> => {parent_tid=[5566]}, 88) = 5566 [pid 5562] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5560] <... mount resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5565 ./strace-static-x86_64: Process 5566 attached [pid 5565] set_robust_list(0x555555d616a0, 24 [pid 5564] rt_sigprocmask(SIG_SETMASK, [], [pid 5563] <... ioctl resumed>) = 0 [pid 5562] <... futex resumed>) = 1 [pid 5561] <... mount resumed>) = 0 [pid 5560] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5558] <... futex resumed>) = 0 [pid 5566] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5564] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 75.932655][ T5560] loop0: detected capacity change from 0 to 1024 [ 75.951882][ T5561] loop4: detected capacity change from 0 to 1024 [ 75.963630][ T5562] loop5: detected capacity change from 0 to 1024 [ 75.964649][ T5563] loop1: detected capacity change from 0 to 1024 [pid 5558] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5566] <... rseq resumed>) = 0 [pid 5565] <... set_robust_list resumed>) = 0 [pid 5564] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5562] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5560] <... openat resumed>) = 3 [pid 5558] <... futex resumed>) = 0 [pid 5566] set_robust_list(0x7f923ecf19a0, 24 [pid 5565] chdir("./41" [pid 5564] <... futex resumed>) = 0 [pid 5560] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5558] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5566] <... set_robust_list resumed>) = 0 [pid 5564] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5561] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5560] <... chdir resumed>) = 0 [pid 5566] rt_sigprocmask(SIG_SETMASK, [], [pid 5565] <... chdir resumed>) = 0 [pid 5561] <... openat resumed>) = 3 [pid 5560] ioctl(4, LOOP_CLR_FD [pid 5566] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] close(3 [pid 5561] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5560] <... ioctl resumed>) = 0 [pid 5566] memfd_create("syzkaller", 0 [pid 5565] <... prctl resumed>) = 0 [pid 5563] <... close resumed>) = 0 [pid 5562] <... mknod resumed>) = 0 [pid 5561] <... chdir resumed>) = 0 [pid 5560] close(4 [pid 5566] <... memfd_create resumed>) = 3 [pid 5565] setpgid(0, 0 [pid 5563] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5562] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5561] ioctl(4, LOOP_CLR_FD [pid 5560] <... close resumed>) = 0 [pid 5566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5565] <... setpgid resumed>) = 0 [pid 5563] <... mkdir resumed>) = 0 [pid 5562] <... futex resumed>) = 1 [pid 5561] <... ioctl resumed>) = 0 [pid 5560] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5558] <... futex resumed>) = 0 [pid 5566] <... mmap resumed>) = 0x7f92368d1000 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5558] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5562] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5561] close(4 [pid 5560] <... futex resumed>) = 1 [pid 5558] <... futex resumed>) = 0 [pid 5563] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5561] <... close resumed>) = 0 [pid 5560] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5558] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5556] <... futex resumed>) = 0 [pid 5561] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5561] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5556] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5566] <... write resumed>) = 524288 [pid 5562] <... open resumed>) = 4 [pid 5560] <... futex resumed>) = 0 [pid 5557] <... futex resumed>) = 0 [pid 5556] <... futex resumed>) = 1 [pid 5565] <... openat resumed>) = 3 [pid 5560] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5565] write(3, "1000", 4 [pid 5557] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5565] <... write resumed>) = 4 [pid 5557] <... futex resumed>) = 1 [pid 5565] close(3 [pid 5561] <... futex resumed>) = 0 [pid 5557] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5561] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5565] <... close resumed>) = 0 [pid 5562] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5556] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5565] symlink("/dev/binderfs", "./binderfs" [pid 5562] <... futex resumed>) = 1 [pid 5561] <... mknod resumed>) = 0 [pid 5560] <... mknod resumed>) = 0 [pid 5558] <... futex resumed>) = 0 [pid 5560] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5558] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5556] <... futex resumed>) = 0 [pid 5565] <... symlink resumed>) = 0 [pid 5562] sync( [pid 5561] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5560] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5558] <... futex resumed>) = 0 [pid 5556] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5566] munmap(0x7f92368d1000, 138412032 [pid 5565] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5561] <... futex resumed>) = 1 [pid 5560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5558] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5557] <... futex resumed>) = 0 [pid 5556] <... futex resumed>) = 0 [pid 5566] <... munmap resumed>) = 0 [pid 5561] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5560] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5556] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5565] <... futex resumed>) = 0 [pid 5557] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5565] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5560] <... open resumed>) = 4 [pid 5557] <... futex resumed>) = 1 [pid 5557] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5566] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5561] <... futex resumed>) = 0 [pid 5560] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5560] <... futex resumed>) = 1 [pid 5556] <... futex resumed>) = 0 [pid 5566] <... openat resumed>) = 4 [pid 5563] <... mount resumed>) = 0 [pid 5560] sync( [pid 5556] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5566] ioctl(4, LOOP_SET_FD, 3 [pid 5563] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5561] <... open resumed>) = 4 [pid 5556] <... futex resumed>) = 0 [pid 5565] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5565] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5563] <... openat resumed>) = 3 [pid 5556] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5565] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5561] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5557] <... futex resumed>) = 0 [pid 5561] sync( [pid 5557] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5565] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5557] <... futex resumed>) = 0 [pid 5565] <... mprotect resumed>) = 0 [pid 5563] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5557] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5565] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5563] <... chdir resumed>) = 0 [pid 5563] ioctl(4, LOOP_CLR_FD) = 0 [pid 5563] close(4) = 0 [pid 5563] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5565] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5563] <... futex resumed>) = 1 [pid 5559] <... futex resumed>) = 0 [pid 5565] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5563] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5559] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5559] <... futex resumed>) = 0 [pid 5563] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5559] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5567 attached [pid 5563] <... mknod resumed>) = 0 [pid 5567] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5566] <... ioctl resumed>) = 0 [pid 5565] <... clone3 resumed> => {parent_tid=[5567]}, 88) = 5567 [pid 5563] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5567] <... rseq resumed>) = 0 [pid 5566] close(3 [pid 5565] rt_sigprocmask(SIG_SETMASK, [], [pid 5563] <... futex resumed>) = 1 [pid 5562] <... sync resumed>) = 0 [pid 5561] <... sync resumed>) = 0 [pid 5560] <... sync resumed>) = 0 [pid 5559] <... futex resumed>) = 0 [pid 5567] set_robust_list(0x7f923ecf19a0, 24 [pid 5566] <... close resumed>) = 0 [pid 5565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5563] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5562] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5561] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5560] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5559] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5567] <... set_robust_list resumed>) = 0 [pid 5566] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5565] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5562] <... futex resumed>) = 1 [pid 5561] <... futex resumed>) = 1 [pid 5560] <... futex resumed>) = 1 [pid 5559] <... futex resumed>) = 0 [pid 5558] <... futex resumed>) = 0 [pid 5557] <... futex resumed>) = 0 [pid 5556] <... futex resumed>) = 0 [pid 5567] rt_sigprocmask(SIG_SETMASK, [], [pid 5565] <... futex resumed>) = 0 [pid 5563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5562] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5561] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5560] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5559] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5558] exit_group(0 [pid 5557] exit_group(0 [pid 5556] exit_group(0 [pid 5567] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5566] <... mkdir resumed>) = 0 [pid 5565] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5562] <... futex resumed>) = ? [pid 5561] <... futex resumed>) = ? [pid 5560] <... futex resumed>) = ? [pid 5558] <... exit_group resumed>) = ? [pid 5557] <... exit_group resumed>) = ? [pid 5556] <... exit_group resumed>) = ? [pid 5567] memfd_create("syzkaller", 0 [pid 5566] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5560] +++ exited with 0 +++ [pid 5567] <... memfd_create resumed>) = 3 [pid 5556] +++ exited with 0 +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5556, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5563] <... open resumed>) = 4 [pid 5055] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5561] +++ exited with 0 +++ [pid 5557] +++ exited with 0 +++ [pid 5055] newfstatat(3, "", [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5055] getdents64(3, [pid 5059] <... restart_syscall resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5562] +++ exited with 0 +++ [pid 5558] +++ exited with 0 +++ [pid 5563] <... futex resumed>) = 1 [pid 5559] <... futex resumed>) = 0 [pid 5059] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5563] sync( [pid 5559] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5558, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] <... futex resumed>) = 0 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5059] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5559] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... restart_syscall resumed>) = 0 [ 76.077866][ T5566] loop2: detected capacity change from 0 to 1024 [pid 5059] <... openat resumed>) = 3 [pid 5566] <... mount resumed>) = 0 [pid 5566] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5060] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5566] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5566] <... chdir resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] newfstatat(3, "", [pid 5566] ioctl(4, LOOP_CLR_FD [pid 5060] newfstatat(3, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5566] <... ioctl resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... umount2 resumed>) = 0 [pid 5059] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5566] close(4) = 0 [pid 5566] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5566] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5564] <... futex resumed>) = 0 [pid 5564] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5566] <... futex resumed>) = 0 [pid 5564] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5566] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5055] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5566] <... mknod resumed>) = 0 [pid 5567] <... write resumed>) = 524288 [pid 5566] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5567] munmap(0x7f92368d1000, 138412032 [pid 5566] <... futex resumed>) = 1 [pid 5564] <... futex resumed>) = 0 [pid 5563] <... sync resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5567] <... munmap resumed>) = 0 [pid 5566] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5564] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5563] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5564] <... futex resumed>) = 0 [pid 5564] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] <... openat resumed>) = 4 [pid 5566] <... open resumed>) = 4 [pid 5563] <... futex resumed>) = 1 [pid 5559] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5567] ioctl(4, LOOP_SET_FD, 3 [pid 5566] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5563] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5559] exit_group(0 [pid 5060] <... umount2 resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5059] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... openat resumed>) = 4 [pid 5060] <... openat resumed>) = 4 [pid 5059] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, [pid 5060] newfstatat(4, "", [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, [pid 5060] getdents64(4, [pid 5559] <... exit_group resumed>) = ? [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] newfstatat(4, "", [pid 5563] <... futex resumed>) = ? [pid 5566] <... futex resumed>) = 1 [pid 5564] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] close(4 [pid 5060] getdents64(4, [pid 5059] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5566] sync( [pid 5564] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5563] +++ exited with 0 +++ [pid 5559] +++ exited with 0 +++ [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] getdents64(4, [pid 5564] <... futex resumed>) = 0 [pid 5060] close(4 [pid 5059] <... rmdir resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5559, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5564] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5059] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... rmdir resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5055] getdents64(4, [pid 5060] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] unlink("./40/binderfs" [pid 5055] close(4 [pid 5060] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5055] <... close resumed>) = 0 [pid 5055] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] <... ioctl resumed>) = 0 [pid 5566] <... sync resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [pid 5567] close(3 [pid 5566] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] unlink("./41/binderfs" [pid 5056] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5567] <... close resumed>) = 0 [pid 5566] <... futex resumed>) = 1 [pid 5564] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] getdents64(3, [pid 5056] <... openat resumed>) = 3 [pid 5567] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5566] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5564] exit_group(0 [pid 5060] getdents64(3, [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] newfstatat(3, "", [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5567] <... mkdir resumed>) = 0 [pid 5564] <... exit_group resumed>) = ? [pid 5055] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5567] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5566] <... futex resumed>) = ? [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5566] +++ exited with 0 +++ [pid 5564] +++ exited with 0 +++ [pid 5059] close(3 [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./41/binderfs" [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5564, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... unlink resumed>) = 0 [pid 5060] close(3 [pid 5059] rmdir("./40" [pid 5056] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5567] <... mount resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5567] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5567] <... openat resumed>) = 3 [pid 5060] rmdir("./41" [pid 5059] mkdir("./41", 0777 [pid 5057] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5567] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... close resumed>) = 0 [pid 5567] <... chdir resumed>) = 0 [pid 5055] rmdir("./41" [pid 5567] ioctl(4, LOOP_CLR_FD) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... rmdir resumed>) = 0 [ 76.202257][ T5567] loop3: detected capacity change from 0 to 1024 [pid 5567] close(4) = 0 [pid 5060] mkdir("./42", 0777 [pid 5057] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5567] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] mkdir("./42", 0777 [pid 5567] <... futex resumed>) = 1 [pid 5565] <... futex resumed>) = 0 [pid 5567] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5565] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5057] <... openat resumed>) = 3 [pid 5055] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5565] <... futex resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] getdents64(3, [pid 5565] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... close resumed>) = 0 [pid 5057] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5567] <... mknod resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5568 attached [pid 5567] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] <... openat resumed>) = 3 [pid 5567] <... futex resumed>) = 1 [pid 5565] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5565] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5567] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5565] <... futex resumed>) = 0 [pid 5568] set_robust_list(0x555555d616a0, 24 [pid 5055] close(3 [pid 5060] close(3 [pid 5568] <... set_robust_list resumed>) = 0 [pid 5565] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5568] chdir("./41" [pid 5567] <... open resumed>) = 4 ./strace-static-x86_64: Process 5569 attached [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5568 [pid 5569] set_robust_list(0x555555d616a0, 24./strace-static-x86_64: Process 5570 attached ) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5569 [pid 5568] <... chdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5570 [pid 5570] set_robust_list(0x555555d616a0, 24 [pid 5569] chdir("./42" [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5567] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5569] <... chdir resumed>) = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5569] setpgid(0, 0 [pid 5570] <... set_robust_list resumed>) = 0 [pid 5569] <... setpgid resumed>) = 0 [pid 5568] <... prctl resumed>) = 0 [pid 5567] <... futex resumed>) = 1 [pid 5565] <... futex resumed>) = 0 [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] chdir("./42" [pid 5565] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] setpgid(0, 0 [pid 5567] sync( [pid 5565] <... futex resumed>) = 0 [pid 5568] <... setpgid resumed>) = 0 [pid 5569] <... openat resumed>) = 3 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5565] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] write(3, "1000", 4 [pid 5568] <... openat resumed>) = 3 [pid 5057] newfstatat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5569] <... write resumed>) = 4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5569] close(3 [pid 5057] umount2("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] <... chdir resumed>) = 0 [pid 5569] <... close resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] symlink("/dev/binderfs", "./binderfs" [pid 5570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] openat(AT_FDCWD, "./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5570] <... prctl resumed>) = 0 [pid 5569] <... symlink resumed>) = 0 [pid 5568] write(3, "1000", 4 [pid 5057] <... openat resumed>) = 4 [pid 5570] setpgid(0, 0 [pid 5568] <... write resumed>) = 4 [pid 5570] <... setpgid resumed>) = 0 [pid 5568] close(3 [pid 5569] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] newfstatat(4, "", [pid 5056] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5569] <... futex resumed>) = 0 [pid 5568] <... close resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5570] <... openat resumed>) = 3 [pid 5569] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5568] symlink("/dev/binderfs", "./binderfs" [pid 5056] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5569] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5567] <... sync resumed>) = 0 [pid 5057] getdents64(4, [pid 5570] write(3, "1000", 4 [pid 5569] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5568] <... symlink resumed>) = 0 [pid 5567] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5570] <... write resumed>) = 4 [pid 5569] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5568] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5567] <... futex resumed>) = 1 [pid 5565] <... futex resumed>) = 0 [pid 5570] close(3) = 0 [pid 5569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5568] <... futex resumed>) = 0 [pid 5567] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5565] exit_group(0 [pid 5057] getdents64(4, [pid 5056] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] symlink("/dev/binderfs", "./binderfs" [pid 5569] <... mmap resumed>) = 0x7f923ecd1000 [pid 5568] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5567] <... futex resumed>) = ? [pid 5565] <... exit_group resumed>) = ? [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5570] <... symlink resumed>) = 0 [pid 5569] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5567] +++ exited with 0 +++ [pid 5057] close(4 [pid 5570] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5569] <... mprotect resumed>) = 0 [pid 5568] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5569] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] rmdir("./40/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5570] <... futex resumed>) = 0 [pid 5568] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5570] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5569] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5568] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5570] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5569] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5565] +++ exited with 0 +++ [pid 5056] newfstatat(4, "", [pid 5570] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5568] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- ./strace-static-x86_64: Process 5571 attached [pid 5570] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5568] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5571] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5569] <... clone3 resumed> => {parent_tid=[5571]}, 88) = 5571 [pid 5568] <... mprotect resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5571] <... rseq resumed>) = 0 [pid 5570] <... mmap resumed>) = 0x7f923ecd1000 [pid 5571] set_robust_list(0x7f923ecf19a0, 24 [pid 5569] rt_sigprocmask(SIG_SETMASK, [], [pid 5568] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5570] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5057] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5056] getdents64(4, [pid 5571] <... set_robust_list resumed>) = 0 [pid 5570] <... mprotect resumed>) = 0 [pid 5569] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5568] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5571] rt_sigprocmask(SIG_SETMASK, [], [pid 5570] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5569] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5571] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5570] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5569] <... futex resumed>) = 0 [pid 5568] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5057] unlink("./40/binderfs" [pid 5056] getdents64(4, ./strace-static-x86_64: Process 5572 attached [pid 5571] memfd_create("syzkaller", 0 [pid 5570] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5569] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5573 attached [pid 5572] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5568] <... clone3 resumed> => {parent_tid=[5572]}, 88) = 5572 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(4 [pid 5572] <... rseq resumed>) = 0 [pid 5570] <... clone3 resumed> => {parent_tid=[5573]}, 88) = 5573 [pid 5568] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... close resumed>) = 0 [pid 5573] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5572] set_robust_list(0x7f923ecf19a0, 24 [pid 5570] rt_sigprocmask(SIG_SETMASK, [], [pid 5568] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5573] <... rseq resumed>) = 0 [pid 5572] <... set_robust_list resumed>) = 0 [pid 5570] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5568] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [pid 5056] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5573] set_robust_list(0x7f923ecf19a0, 24 [pid 5572] rt_sigprocmask(SIG_SETMASK, [], [pid 5570] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5058] newfstatat(3, "", [pid 5573] <... set_robust_list resumed>) = 0 [pid 5572] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5570] <... futex resumed>) = 0 [pid 5568] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5573] memfd_create("syzkaller", 0 [pid 5571] <... memfd_create resumed>) = 3 [pid 5570] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5573] <... memfd_create resumed>) = 3 [pid 5572] memfd_create("syzkaller", 0 [pid 5571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, [pid 5573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5572] <... memfd_create resumed>) = 3 [pid 5571] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] getdents64(3, [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5573] <... mmap resumed>) = 0x7f92368d1000 [pid 5572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] close(3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5572] <... mmap resumed>) = 0x7f92368d1000 [pid 5056] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5057] <... close resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] rmdir("./40") = 0 [pid 5057] mkdir("./41", 0777 [pid 5058] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... mkdir resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5056] unlink("./41/binderfs" [pid 5057] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5056] <... unlink resumed>) = 0 [pid 5572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5571] <... write resumed>) = 524288 [pid 5057] close(3 [pid 5573] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] close(3 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./41") = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5574 ./strace-static-x86_64: Process 5574 attached [pid 5574] set_robust_list(0x555555d616a0, 24) = 0 [pid 5574] chdir("./41") = 0 [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5571] munmap(0x7f92368d1000, 138412032 [pid 5574] <... prctl resumed>) = 0 [pid 5572] <... write resumed>) = 524288 [pid 5056] mkdir("./42", 0777 [pid 5574] setpgid(0, 0) = 0 [pid 5571] <... munmap resumed>) = 0 [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] <... umount2 resumed>) = 0 [pid 5571] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5574] <... openat resumed>) = 3 [pid 5571] ioctl(4, LOOP_SET_FD, 3 [pid 5574] write(3, "1000", 4) = 4 [pid 5573] <... write resumed>) = 524288 [pid 5574] close(3) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5574] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5574] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5574] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5574] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5574] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5574] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5574] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5575 attached [pid 5573] munmap(0x7f92368d1000, 138412032 [pid 5572] munmap(0x7f92368d1000, 138412032 [pid 5058] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5575] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5574] <... clone3 resumed> => {parent_tid=[5575]}, 88) = 5575 [pid 5575] <... rseq resumed>) = 0 [pid 5574] rt_sigprocmask(SIG_SETMASK, [], [pid 5572] <... munmap resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5575] set_robust_list(0x7f923ecf19a0, 24 [pid 5574] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5573] <... munmap resumed>) = 0 [pid 5572] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5575] <... set_robust_list resumed>) = 0 [pid 5574] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5573] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5572] <... openat resumed>) = 4 [pid 5571] <... ioctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5575] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5573] <... openat resumed>) = 4 [pid 5572] ioctl(4, LOOP_SET_FD, 3 [pid 5058] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5573] ioctl(4, LOOP_SET_FD, 3 [pid 5575] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5574] <... futex resumed>) = 0 [pid 5575] memfd_create("syzkaller", 0 [pid 5574] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5575] <... memfd_create resumed>) = 3 [pid 5575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5571] close(3) = 0 [pid 5571] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5571] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... openat resumed>) = 4 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5576 [pid 5058] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5576 attached [pid 5058] getdents64(4, [pid 5576] set_robust_list(0x555555d616a0, 24) = 0 [pid 5575] <... write resumed>) = 524288 [pid 5573] <... ioctl resumed>) = 0 [pid 5572] <... ioctl resumed>) = 0 [pid 5571] <... mount resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5576] chdir("./42" [pid 5058] getdents64(4, [pid 5576] <... chdir resumed>) = 0 [pid 5573] close(3 [pid 5572] close(3 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] <... close resumed>) = 0 [pid 5572] <... close resumed>) = 0 [pid 5058] close(4 [pid 5576] <... prctl resumed>) = 0 [pid 5573] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5572] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... close resumed>) = 0 [pid 5576] setpgid(0, 0) = 0 [pid 5573] <... mkdir resumed>) = 0 [pid 5572] <... mkdir resumed>) = 0 [pid 5571] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5571] <... openat resumed>) = 3 [pid 5058] <... rmdir resumed>) = 0 [pid 5576] <... openat resumed>) = 3 [pid 5575] munmap(0x7f92368d1000, 138412032 [pid 5571] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5576] write(3, "1000", 4 [pid 5575] <... munmap resumed>) = 0 [pid 5573] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5571] <... chdir resumed>) = 0 [pid 5058] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5571] ioctl(4, LOOP_CLR_FD [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5571] <... ioctl resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5571] close(4) = 0 [pid 5575] openat(AT_FDCWD, "/dev/loop2", O_RDWR [ 76.377923][ T5571] loop5: detected capacity change from 0 to 1024 [ 76.400459][ T5572] loop4: detected capacity change from 0 to 1024 [ 76.407813][ T5573] loop0: detected capacity change from 0 to 1024 [pid 5571] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5576] <... write resumed>) = 4 [pid 5575] <... openat resumed>) = 4 [pid 5571] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5058] unlink("./41/binderfs" [pid 5576] close(3 [pid 5571] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5569] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] <... close resumed>) = 0 [pid 5575] ioctl(4, LOOP_SET_FD, 3 [pid 5569] <... futex resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5576] symlink("/dev/binderfs", "./binderfs" [pid 5569] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5576] <... symlink resumed>) = 0 [pid 5573] <... mount resumed>) = 0 [pid 5576] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5573] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5571] <... mknod resumed>) = 0 [pid 5572] <... mount resumed>) = 0 [pid 5058] getdents64(3, [pid 5576] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5573] <... openat resumed>) = 3 [pid 5572] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5571] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5576] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5572] <... openat resumed>) = 3 [pid 5571] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5576] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5573] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5572] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5576] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5573] <... chdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5575] <... ioctl resumed>) = 0 [pid 5572] <... chdir resumed>) = 0 [pid 5571] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5569] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] <... mmap resumed>) = 0x7f923ecd1000 [pid 5572] ioctl(4, LOOP_CLR_FD [pid 5569] <... futex resumed>) = 0 [pid 5058] rmdir("./41" [pid 5576] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5573] ioctl(4, LOOP_CLR_FD [pid 5572] <... ioctl resumed>) = 0 [pid 5569] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5576] <... mprotect resumed>) = 0 [pid 5575] close(3 [pid 5573] <... ioctl resumed>) = 0 [pid 5572] close(4 [pid 5571] <... open resumed>) = 4 [pid 5058] <... rmdir resumed>) = 0 [pid 5576] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5575] <... close resumed>) = 0 [pid 5573] close(4 [pid 5572] <... close resumed>) = 0 [pid 5576] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5575] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5572] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5573] <... close resumed>) = 0 [pid 5576] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5575] <... mkdir resumed>) = 0 [pid 5572] <... futex resumed>) = 1 [pid 5568] <... futex resumed>) = 0 [pid 5573] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] mkdir("./42", 0777 [pid 5573] <... futex resumed>) = 1 [pid 5572] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5573] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] <... futex resumed>) = 0 [pid 5568] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5576] <... clone3 resumed> => {parent_tid=[5577]}, 88) = 5577 [pid 5572] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5570] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5577 attached [pid 5575] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5571] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5577] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5576] rt_sigprocmask(SIG_SETMASK, [], [pid 5573] <... futex resumed>) = 0 [pid 5571] sync( [pid 5570] <... futex resumed>) = 1 [pid 5569] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5577] <... rseq resumed>) = 0 [pid 5576] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5573] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5570] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5569] <... futex resumed>) = 0 [ 76.451758][ T5575] loop2: detected capacity change from 0 to 1024 [pid 5577] set_robust_list(0x7f923ecf19a0, 24 [pid 5569] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5568] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5577] <... set_robust_list resumed>) = 0 [pid 5577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5576] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5572] <... mknod resumed>) = 0 [pid 5577] memfd_create("syzkaller", 0 [pid 5576] <... futex resumed>) = 0 [pid 5575] <... mount resumed>) = 0 [pid 5573] <... mknod resumed>) = 0 [pid 5572] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5577] <... memfd_create resumed>) = 3 [pid 5576] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5575] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5058] <... openat resumed>) = 3 [pid 5575] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5573] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5572] <... futex resumed>) = 1 [pid 5568] <... futex resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5575] <... chdir resumed>) = 0 [pid 5573] <... futex resumed>) = 1 [pid 5572] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] <... futex resumed>) = 0 [pid 5568] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5577] <... mmap resumed>) = 0x7f92368d1000 [pid 5575] ioctl(4, LOOP_CLR_FD [pid 5573] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5570] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5575] <... ioctl resumed>) = 0 [pid 5573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5572] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5570] <... futex resumed>) = 0 [pid 5568] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5575] close(4 [pid 5573] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5570] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5575] <... close resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5575] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5575] <... futex resumed>) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5572] <... open resumed>) = 4 [pid 5574] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5575] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5574] <... futex resumed>) = 0 [pid 5574] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5572] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5578 attached [pid 5573] <... open resumed>) = 4 [pid 5572] <... futex resumed>) = 1 [pid 5568] <... futex resumed>) = 0 [pid 5578] set_robust_list(0x555555d616a0, 24 [pid 5572] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5568] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5578 [pid 5573] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5577] <... write resumed>) = 524288 [pid 5575] <... mknod resumed>) = 0 [pid 5572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5568] <... futex resumed>) = 0 [pid 5575] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5574] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] chdir("./42" [pid 5577] munmap(0x7f92368d1000, 138412032 [pid 5574] <... futex resumed>) = 0 [pid 5573] <... futex resumed>) = 1 [pid 5572] sync( [pid 5570] <... futex resumed>) = 0 [pid 5569] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5568] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5578] <... chdir resumed>) = 0 [pid 5577] <... munmap resumed>) = 0 [pid 5573] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5570] <... futex resumed>) = 0 [pid 5578] <... prctl resumed>) = 0 [pid 5574] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5573] sync( [pid 5570] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5578] setpgid(0, 0 [pid 5577] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5578] <... setpgid resumed>) = 0 [pid 5577] <... openat resumed>) = 4 [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5577] ioctl(4, LOOP_SET_FD, 3 [pid 5578] write(3, "1000", 4 [pid 5575] <... open resumed>) = 4 [pid 5571] <... sync resumed>) = 0 [pid 5578] <... write resumed>) = 4 [pid 5578] close(3) = 0 [pid 5578] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5578] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5578] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5578] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5578] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5578] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5578] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5579 attached => {parent_tid=[5579]}, 88) = 5579 [pid 5579] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5578] rt_sigprocmask(SIG_SETMASK, [], [pid 5579] <... rseq resumed>) = 0 [pid 5578] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5579] set_robust_list(0x7f923ecf19a0, 24 [pid 5578] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5579] <... set_robust_list resumed>) = 0 [pid 5578] <... futex resumed>) = 0 [pid 5571] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5579] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5578] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5571] <... futex resumed>) = 0 [pid 5579] memfd_create("syzkaller", 0 [pid 5575] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5579] <... memfd_create resumed>) = 3 [pid 5577] <... ioctl resumed>) = 0 [pid 5579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5577] close(3 [pid 5579] <... mmap resumed>) = 0x7f92368d1000 [pid 5577] <... close resumed>) = 0 [pid 5575] <... futex resumed>) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5577] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5575] sync( [pid 5574] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5569] exit_group(0 [pid 5574] <... futex resumed>) = 0 [pid 5574] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5573] <... sync resumed>) = 0 [pid 5571] <... futex resumed>) = ? [pid 5569] <... exit_group resumed>) = ? [pid 5571] +++ exited with 0 +++ [pid 5577] <... mkdir resumed>) = 0 [pid 5577] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5573] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5569] +++ exited with 0 +++ [pid 5573] <... futex resumed>) = 1 [pid 5570] <... futex resumed>) = 0 [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5573] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] exit_group(0 [pid 5573] <... futex resumed>) = ? [pid 5570] <... exit_group resumed>) = ? [pid 5573] +++ exited with 0 +++ [pid 5060] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5060] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5060] newfstatat(3, "", [pid 5570] +++ exited with 0 +++ [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5570, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5055] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] <... mount resumed>) = 0 [pid 5577] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] <... openat resumed>) = 3 [pid 5575] <... sync resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5577] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5575] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5572] <... sync resumed>) = 0 [pid 5577] <... chdir resumed>) = 0 [pid 5575] <... futex resumed>) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5572] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5579] <... write resumed>) = 524288 [pid 5577] ioctl(4, LOOP_CLR_FD [pid 5575] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 76.568573][ T781] cfg80211: failed to load regulatory.db [ 76.577974][ T5577] loop1: detected capacity change from 0 to 1024 [pid 5574] exit_group(0 [pid 5568] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5060] <... umount2 resumed>) = 0 [pid 5574] <... exit_group resumed>) = ? [pid 5568] exit_group(0 [pid 5055] newfstatat(3, "", [pid 5575] <... futex resumed>) = ? [pid 5568] <... exit_group resumed>) = ? [pid 5572] <... futex resumed>) = ? [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5572] +++ exited with 0 +++ [pid 5568] +++ exited with 0 +++ [pid 5055] getdents64(3, [pid 5577] <... ioctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5568, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5579] munmap(0x7f92368d1000, 138412032 [pid 5577] close(4 [pid 5575] +++ exited with 0 +++ [pid 5574] +++ exited with 0 +++ [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5579] <... munmap resumed>) = 0 [pid 5577] <... close resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5577] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5574, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5579] <... openat resumed>) = 4 [pid 5577] <... futex resumed>) = 1 [pid 5576] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] ioctl(4, LOOP_SET_FD, 3 [pid 5577] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5576] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5579] <... ioctl resumed>) = 0 [pid 5577] <... mknod resumed>) = 0 [pid 5576] <... futex resumed>) = 0 [pid 5060] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5576] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... openat resumed>) = 3 [pid 5057] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5057] getdents64(3, [pid 5055] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(3, "", [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] getdents64(3, [pid 5577] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5577] <... futex resumed>) = 1 [pid 5576] <... futex resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5576] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5577] <... open resumed>) = 4 [pid 5576] <... futex resumed>) = 0 [pid 5577] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5577] <... futex resumed>) = 0 [pid 5576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5577] sync( [pid 5576] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5576] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5576] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(4, "", [pid 5060] <... openat resumed>) = 4 [pid 5060] newfstatat(4, "", [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5060] getdents64(4, [pid 5057] <... umount2 resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] getdents64(4, [pid 5055] <... rmdir resumed>) = 0 [pid 5055] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5579] close(3 [pid 5055] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5579] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5579] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] unlink("./42/binderfs" [pid 5579] <... mkdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5060] close(4) = 0 [pid 5057] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] getdents64(3, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] close(3 [pid 5579] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... close resumed>) = 0 [pid 5577] <... sync resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] rmdir("./42" [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5579] <... mount resumed>) = 0 [pid 5577] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] unlink("./42/binderfs" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... rmdir resumed>) = 0 [pid 5059] umount2("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5577] <... futex resumed>) = 1 [pid 5576] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... openat resumed>) = 4 [pid 5055] mkdir("./43", 0777 [pid 5060] getdents64(3, [pid 5579] <... openat resumed>) = 3 [pid 5577] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5576] exit_group(0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] openat(AT_FDCWD, "./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] newfstatat(4, "", [pid 5055] <... mkdir resumed>) = 0 [pid 5579] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5577] <... futex resumed>) = ? [pid 5576] <... exit_group resumed>) = ? [pid 5060] close(3 [pid 5059] <... openat resumed>) = 4 [ 76.656433][ T5579] loop3: detected capacity change from 0 to 1024 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5579] <... chdir resumed>) = 0 [pid 5577] +++ exited with 0 +++ [pid 5576] +++ exited with 0 +++ [pid 5060] <... close resumed>) = 0 [pid 5059] newfstatat(4, "", [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5579] ioctl(4, LOOP_CLR_FD [pid 5057] getdents64(4, [pid 5055] <... openat resumed>) = 3 [pid 5579] <... ioctl resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5576, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5579] close(4 [pid 5059] getdents64(4, [pid 5057] getdents64(4, [pid 5056] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5579] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] close(3 [pid 5579] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] close(4 [pid 5056] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... close resumed>) = 0 [pid 5579] <... futex resumed>) = 1 [pid 5057] <... close resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5579] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] newfstatat(3, "", ./strace-static-x86_64: Process 5580 attached [pid 5578] <... futex resumed>) = 0 [pid 5060] rmdir("./42" [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5580 [pid 5578] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] getdents64(3, [pid 5579] <... futex resumed>) = 0 [pid 5578] <... futex resumed>) = 1 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] getdents64(4, [pid 5579] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5578] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] set_robust_list(0x555555d616a0, 24 [pid 5579] <... mknod resumed>) = 0 [pid 5060] mkdir("./43", 0777 [pid 5059] close(4 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = 0 [pid 5580] <... set_robust_list resumed>) = 0 [pid 5579] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5580] chdir("./43" [pid 5579] <... futex resumed>) = 1 [pid 5578] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5579] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5578] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... mkdir resumed>) = 0 [pid 5059] rmdir("./41/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5580] <... chdir resumed>) = 0 [pid 5579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5578] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5579] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5578] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... rmdir resumed>) = 0 [pid 5057] unlink("./41/binderfs" [pid 5056] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] <... prctl resumed>) = 0 [pid 5579] <... open resumed>) = 4 [pid 5060] <... openat resumed>) = 3 [pid 5059] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] setpgid(0, 0 [pid 5579] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] getdents64(3, [pid 5056] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5580] <... setpgid resumed>) = 0 [pid 5579] <... futex resumed>) = 1 [pid 5578] <... futex resumed>) = 0 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5579] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5578] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5057] close(3 [pid 5056] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5580] <... openat resumed>) = 3 [pid 5579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5578] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] write(3, "1000", 4 [pid 5579] sync( [pid 5578] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5059] unlink("./41/binderfs" [pid 5057] <... close resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5580] <... write resumed>) = 4 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5580] close(3 [pid 5059] <... unlink resumed>) = 0 [pid 5056] <... openat resumed>) = 4 [pid 5580] <... close resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5580] symlink("/dev/binderfs", "./binderfs" [pid 5059] getdents64(3, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5580] <... symlink resumed>) = 0 [pid 5057] rmdir("./41" [pid 5056] getdents64(4, [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, [pid 5057] mkdir("./42", 0777 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5580] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] close(4 [pid 5580] <... futex resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... close resumed>) = 0 [pid 5580] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5057] <... openat resumed>) = 3 [pid 5580] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5580] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... rmdir resumed>) = 0 [pid 5580] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] close(3 [pid 5056] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5581 attached [pid 5580] <... mmap resumed>) = 0x7f923ecd1000 [pid 5059] close(3 [pid 5057] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5580] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5581] set_robust_list(0x555555d616a0, 24 [pid 5580] <... mprotect resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5581 [pid 5059] rmdir("./41" [pid 5056] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5581] <... set_robust_list resumed>) = 0 [pid 5580] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ./strace-static-x86_64: Process 5582 attached [pid 5581] chdir("./43" [pid 5580] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5582] set_robust_list(0x555555d616a0, 24 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5582 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5582] <... set_robust_list resumed>) = 0 [pid 5581] <... chdir resumed>) = 0 [pid 5580] <... clone3 resumed> => {parent_tid=[5583]}, 88) = 5583 [pid 5056] unlink("./42/binderfs"./strace-static-x86_64: Process 5583 attached [pid 5582] chdir("./42" [pid 5580] rt_sigprocmask(SIG_SETMASK, [], [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] mkdir("./42", 0777 [pid 5056] <... unlink resumed>) = 0 [pid 5583] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5582] <... chdir resumed>) = 0 [pid 5581] <... prctl resumed>) = 0 [pid 5580] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] getdents64(3, [pid 5583] <... rseq resumed>) = 0 [pid 5582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5581] setpgid(0, 0 [pid 5580] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5579] <... sync resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5583] set_robust_list(0x7f923ecf19a0, 24 [pid 5582] <... prctl resumed>) = 0 [pid 5581] <... setpgid resumed>) = 0 [pid 5580] <... futex resumed>) = 0 [pid 5583] <... set_robust_list resumed>) = 0 [pid 5583] rt_sigprocmask(SIG_SETMASK, [], [pid 5580] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5583] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5582] setpgid(0, 0 [pid 5583] memfd_create("syzkaller", 0 [pid 5056] close(3 [pid 5582] <... setpgid resumed>) = 0 [pid 5583] <... memfd_create resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5581] <... openat resumed>) = 3 [pid 5056] rmdir("./42" [pid 5583] <... mmap resumed>) = 0x7f92368d1000 [pid 5581] write(3, "1000", 4 [pid 5582] <... openat resumed>) = 3 [pid 5579] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... rmdir resumed>) = 0 [pid 5582] write(3, "1000", 4 [pid 5579] <... futex resumed>) = 1 [pid 5578] <... futex resumed>) = 0 [pid 5056] mkdir("./43", 0777 [pid 5578] exit_group(0 [pid 5056] <... mkdir resumed>) = 0 [pid 5578] <... exit_group resumed>) = ? [pid 5583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5581] <... write resumed>) = 4 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5582] <... write resumed>) = 4 [pid 5059] <... openat resumed>) = 3 [pid 5582] close(3 [pid 5581] close(3 [pid 5579] +++ exited with 0 +++ [pid 5578] +++ exited with 0 +++ [pid 5582] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5578, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5581] <... close resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5582] symlink("/dev/binderfs", "./binderfs" [pid 5056] <... openat resumed>) = 3 [pid 5582] <... symlink resumed>) = 0 [pid 5581] symlink("/dev/binderfs", "./binderfs" [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5582] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5582] <... futex resumed>) = 0 [pid 5581] <... symlink resumed>) = 0 [pid 5059] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(3 [pid 5582] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5581] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5058] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5581] <... futex resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5582] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5583] <... write resumed>) = 524288 [pid 5582] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5581] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, ./strace-static-x86_64: Process 5585 attached ./strace-static-x86_64: Process 5584 attached [pid 5582] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5581] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5584 [pid 5058] newfstatat(3, "", [pid 5581] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5581] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] getdents64(3, [pid 5582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5585] set_robust_list(0x555555d616a0, 24 [pid 5584] set_robust_list(0x555555d616a0, 24 [pid 5058] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5585] <... set_robust_list resumed>) = 0 [pid 5584] <... set_robust_list resumed>) = 0 [pid 5583] munmap(0x7f92368d1000, 138412032 [pid 5582] <... mmap resumed>) = 0x7f923ecd1000 [pid 5581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5585 [pid 5585] chdir("./43" [pid 5584] chdir("./42" [pid 5583] <... munmap resumed>) = 0 [pid 5582] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5581] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5585] <... chdir resumed>) = 0 [pid 5581] <... mprotect resumed>) = 0 [pid 5583] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5584] <... chdir resumed>) = 0 [pid 5582] <... mprotect resumed>) = 0 [pid 5585] <... prctl resumed>) = 0 [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5583] <... openat resumed>) = 4 [pid 5582] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5581] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... umount2 resumed>) = 0 [pid 5585] setpgid(0, 0 [pid 5584] <... prctl resumed>) = 0 [pid 5582] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5584] setpgid(0, 0 [pid 5582] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5583] ioctl(4, LOOP_SET_FD, 3 [pid 5581] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5581] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5586 attached [pid 5585] <... setpgid resumed>) = 0 [pid 5584] <... setpgid resumed>) = 0 [pid 5058] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5582] <... clone3 resumed> => {parent_tid=[5586]}, 88) = 5586 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5586] <... rseq resumed>) = 0 [pid 5585] <... openat resumed>) = 3 [pid 5584] <... openat resumed>) = 3 [pid 5582] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5586] set_robust_list(0x7f923ecf19a0, 24 [pid 5584] write(3, "1000", 4 [pid 5582] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5586] <... set_robust_list resumed>) = 0 [pid 5585] write(3, "1000", 4 [pid 5584] <... write resumed>) = 4 [pid 5582] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] rt_sigprocmask(SIG_SETMASK, [], [pid 5585] <... write resumed>) = 4 [pid 5584] close(3 [pid 5582] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5586] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5585] close(3 [pid 5584] <... close resumed>) = 0 [pid 5582] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5586] memfd_create("syzkaller", 0 [pid 5585] <... close resumed>) = 0 [pid 5584] symlink("/dev/binderfs", "./binderfs" [pid 5058] <... openat resumed>) = 4 [pid 5586] <... memfd_create resumed>) = 3 [pid 5585] symlink("/dev/binderfs", "./binderfs" [pid 5584] <... symlink resumed>) = 0 [pid 5058] newfstatat(4, "", [pid 5586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5585] <... symlink resumed>) = 0 [pid 5584] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5581] <... clone3 resumed> => {parent_tid=[5587]}, 88) = 5587 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5587 attached [pid 5586] <... mmap resumed>) = 0x7f92368d1000 [pid 5585] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] <... futex resumed>) = 0 [pid 5581] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(4, [pid 5587] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5583] <... ioctl resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5585] <... futex resumed>) = 0 [pid 5058] close(4 [pid 5585] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5584] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5587] <... rseq resumed>) = 0 [pid 5583] close(3 [pid 5581] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5587] set_robust_list(0x7f923ecf19a0, 24 [pid 5584] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5583] <... close resumed>) = 0 [pid 5581] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5587] <... set_robust_list resumed>) = 0 [pid 5585] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5584] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5583] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5581] <... futex resumed>) = 0 [pid 5058] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5587] rt_sigprocmask(SIG_SETMASK, [], [pid 5586] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5585] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5584] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5581] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5587] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5585] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5583] <... mkdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5587] memfd_create("syzkaller", 0 [pid 5585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5584] <... mmap resumed>) = 0x7f923ecd1000 [pid 5583] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5587] <... memfd_create resumed>) = 3 [pid 5585] <... mmap resumed>) = 0x7f923ecd1000 [pid 5584] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5585] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5584] <... mprotect resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5587] <... mmap resumed>) = 0x7f92368d1000 [pid 5585] <... mprotect resumed>) = 0 [pid 5058] unlink("./42/binderfs" [pid 5585] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5584] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... unlink resumed>) = 0 [pid 5585] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5584] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] getdents64(3, [pid 5585] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5584] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5589 attached ./strace-static-x86_64: Process 5588 attached [pid 5058] close(3 [pid 5589] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5588] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5586] <... write resumed>) = 524288 [pid 5585] <... clone3 resumed> => {parent_tid=[5588]}, 88) = 5588 [pid 5584] <... clone3 resumed> => {parent_tid=[5589]}, 88) = 5589 [pid 5058] <... close resumed>) = 0 [pid 5589] <... rseq resumed>) = 0 [pid 5588] <... rseq resumed>) = 0 [pid 5585] rt_sigprocmask(SIG_SETMASK, [], [pid 5584] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] rmdir("./42" [pid 5589] set_robust_list(0x7f923ecf19a0, 24 [pid 5588] set_robust_list(0x7f923ecf19a0, 24 [pid 5586] munmap(0x7f92368d1000, 138412032 [pid 5585] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5584] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5589] <... set_robust_list resumed>) = 0 [pid 5588] <... set_robust_list resumed>) = 0 [pid 5586] <... munmap resumed>) = 0 [pid 5585] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] rt_sigprocmask(SIG_SETMASK, [], [pid 5588] rt_sigprocmask(SIG_SETMASK, [], [pid 5584] <... futex resumed>) = 0 [pid 5589] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5588] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5586] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5585] <... futex resumed>) = 0 [pid 5584] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] mkdir("./43", 0777 [pid 5589] memfd_create("syzkaller", 0 [pid 5588] memfd_create("syzkaller", 0 [pid 5586] <... openat resumed>) = 4 [pid 5585] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... mkdir resumed>) = 0 [pid 5587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5589] <... memfd_create resumed>) = 3 [pid 5588] <... memfd_create resumed>) = 3 [ 76.854084][ T5583] loop0: detected capacity change from 0 to 1024 [pid 5586] ioctl(4, LOOP_SET_FD, 3 [pid 5589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5586] <... ioctl resumed>) = 0 [pid 5583] <... mount resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5589] <... mmap resumed>) = 0x7f92368d1000 [pid 5588] <... mmap resumed>) = 0x7f92368d1000 [pid 5583] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... openat resumed>) = 3 [pid 5583] <... openat resumed>) = 3 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5583] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5583] ioctl(4, LOOP_CLR_FD) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] close(3) = 0 [pid 5583] close(4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5587] <... write resumed>) = 524288 [pid 5588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5583] <... close resumed>) = 0 ./strace-static-x86_64: Process 5590 attached [pid 5589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5590] set_robust_list(0x555555d616a0, 24 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5590 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5590] chdir("./43" [pid 5587] munmap(0x7f92368d1000, 138412032 [pid 5583] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5583] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5580] <... futex resumed>) = 0 [pid 5590] <... chdir resumed>) = 0 [pid 5580] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5589] <... write resumed>) = 524288 [pid 5588] <... write resumed>) = 524288 [pid 5587] <... munmap resumed>) = 0 [pid 5583] <... futex resumed>) = 0 [pid 5580] <... futex resumed>) = 1 [pid 5583] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5590] <... prctl resumed>) = 0 [pid 5590] setpgid(0, 0) = 0 [pid 5590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5586] close(3 [pid 5580] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5586] <... close resumed>) = 0 [pid 5586] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5587] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5586] <... mkdir resumed>) = 0 [pid 5583] <... mknod resumed>) = 0 [pid 5587] <... openat resumed>) = 4 [ 76.904256][ T5586] loop2: detected capacity change from 0 to 1024 [pid 5583] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5587] ioctl(4, LOOP_SET_FD, 3 [pid 5580] <... futex resumed>) = 0 [pid 5590] <... openat resumed>) = 3 [pid 5589] munmap(0x7f92368d1000, 138412032 [pid 5586] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5590] write(3, "1000", 4 [pid 5589] <... munmap resumed>) = 0 [pid 5590] <... write resumed>) = 4 [pid 5589] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5590] close(3 [pid 5589] <... openat resumed>) = 4 [pid 5590] <... close resumed>) = 0 [pid 5589] ioctl(4, LOOP_SET_FD, 3 [pid 5590] symlink("/dev/binderfs", "./binderfs" [pid 5589] <... ioctl resumed>) = 0 [pid 5588] munmap(0x7f92368d1000, 138412032 [pid 5587] <... ioctl resumed>) = 0 [pid 5583] <... futex resumed>) = 1 [pid 5580] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... symlink resumed>) = 0 [pid 5589] close(3 [pid 5588] <... munmap resumed>) = 0 [pid 5587] close(3 [pid 5586] <... mount resumed>) = 0 [pid 5583] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5580] <... futex resumed>) = 0 [pid 5590] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] <... close resumed>) = 0 [pid 5588] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5587] <... close resumed>) = 0 [pid 5586] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5583] <... open resumed>) = 4 [pid 5580] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5590] <... futex resumed>) = 0 [pid 5589] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5588] <... openat resumed>) = 4 [pid 5587] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5586] <... openat resumed>) = 3 [pid 5583] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5590] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5589] <... mkdir resumed>) = 0 [pid 5588] ioctl(4, LOOP_SET_FD, 3 [pid 5587] <... mkdir resumed>) = 0 [pid 5586] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5583] <... futex resumed>) = 0 [pid 5580] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5589] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5587] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5583] sync( [pid 5580] <... futex resumed>) = 0 [pid 5580] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5586] <... chdir resumed>) = 0 [pid 5586] ioctl(4, LOOP_CLR_FD) = 0 [pid 5590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5589] <... mount resumed>) = 0 [pid 5588] <... ioctl resumed>) = 0 [pid 5587] <... mount resumed>) = 0 [pid 5586] close(4 [pid 5590] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5589] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5588] close(3 [pid 5587] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5586] <... close resumed>) = 0 [pid 5590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5589] <... openat resumed>) = 3 [pid 5587] <... openat resumed>) = 3 [pid 5590] <... mmap resumed>) = 0x7f923ecd1000 [pid 5589] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5587] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5586] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5589] <... chdir resumed>) = 0 [pid 5588] <... close resumed>) = 0 [pid 5587] <... chdir resumed>) = 0 [pid 5586] <... futex resumed>) = 1 [pid 5582] <... futex resumed>) = 0 [pid 5590] <... mprotect resumed>) = 0 [pid 5589] ioctl(4, LOOP_CLR_FD [pid 5588] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5587] ioctl(4, LOOP_CLR_FD [pid 5586] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5582] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5587] <... ioctl resumed>) = 0 [pid 5587] close(4 [pid 5588] <... mkdir resumed>) = 0 [pid 5587] <... close resumed>) = 0 [pid 5582] <... futex resumed>) = 0 [pid 5583] <... sync resumed>) = 0 [pid 5588] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5587] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5583] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5582] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5590] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5589] <... ioctl resumed>) = 0 [pid 5587] <... futex resumed>) = 1 [pid 5586] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5583] <... futex resumed>) = 1 [pid 5581] <... futex resumed>) = 0 [pid 5580] <... futex resumed>) = 0 [pid 5590] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5589] close(4 [pid 5587] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5586] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5583] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5581] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5580] exit_group(0 [pid 5590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5589] <... close resumed>) = 0 [pid 5587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5581] <... futex resumed>) = 0 [pid 5580] <... exit_group resumed>) = ? [pid 5583] <... futex resumed>) = ? ./strace-static-x86_64: Process 5591 attached [pid 5589] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... mount resumed>) = 0 [pid 5587] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5586] <... mknod resumed>) = 0 [pid 5581] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5590] <... clone3 resumed> => {parent_tid=[5591]}, 88) = 5591 [pid 5589] <... futex resumed>) = 1 [pid 5588] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5586] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] <... futex resumed>) = 0 [pid 5583] +++ exited with 0 +++ [pid 5580] +++ exited with 0 +++ [pid 5591] <... rseq resumed>) = 0 [pid 5590] rt_sigprocmask(SIG_SETMASK, [], [pid 5589] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5588] <... openat resumed>) = 3 [pid 5587] <... mknod resumed>) = 0 [pid 5586] <... futex resumed>) = 1 [pid 5584] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5582] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5580, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5591] set_robust_list(0x7f923ecf19a0, 24 [pid 5590] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5588] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5586] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5584] <... futex resumed>) = 0 [pid 5582] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] <... set_robust_list resumed>) = 0 [pid 5590] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5588] <... chdir resumed>) = 0 [pid 5587] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5586] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5584] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5582] <... futex resumed>) = 0 [ 76.947568][ T5587] loop5: detected capacity change from 0 to 1024 [ 76.951648][ T5589] loop4: detected capacity change from 0 to 1024 [ 76.982095][ T5588] loop1: detected capacity change from 0 to 1024 [pid 5591] rt_sigprocmask(SIG_SETMASK, [], [pid 5590] <... futex resumed>) = 0 [pid 5588] ioctl(4, LOOP_CLR_FD [pid 5587] <... futex resumed>) = 1 [pid 5586] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5582] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5581] <... futex resumed>) = 0 [pid 5591] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5590] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5589] <... mknod resumed>) = 0 [pid 5588] <... ioctl resumed>) = 0 [pid 5587] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5581] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] memfd_create("syzkaller", 0 [pid 5581] <... futex resumed>) = 0 [pid 5588] close(4 [pid 5591] <... memfd_create resumed>) = 3 [pid 5588] <... close resumed>) = 0 [pid 5587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5581] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5589] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5055] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] <... mmap resumed>) = 0x7f92368d1000 [pid 5589] <... futex resumed>) = 1 [pid 5588] <... futex resumed>) = 1 [pid 5585] <... futex resumed>) = 0 [pid 5584] <... futex resumed>) = 0 [pid 5589] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5588] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5586] <... open resumed>) = 4 [pid 5585] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5585] <... futex resumed>) = 0 [pid 5584] <... futex resumed>) = 0 [pid 5588] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5585] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5584] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5589] <... open resumed>) = 4 [pid 5587] <... open resumed>) = 4 [pid 5055] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5586] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5582] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5586] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5582] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... mknod resumed>) = 0 [pid 5586] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5582] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5588] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5586] sync( [pid 5582] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5589] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... futex resumed>) = 1 [pid 5587] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5585] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5589] <... futex resumed>) = 1 [pid 5588] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] <... futex resumed>) = 1 [pid 5585] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] <... futex resumed>) = 0 [pid 5581] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5589] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5587] sync( [pid 5585] <... futex resumed>) = 0 [pid 5584] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5581] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5588] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5585] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5584] <... futex resumed>) = 0 [pid 5581] <... futex resumed>) = 0 [pid 5055] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] sync( [pid 5584] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5581] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] <... write resumed>) = 524288 [pid 5588] <... open resumed>) = 4 [pid 5588] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5585] <... futex resumed>) = 0 [pid 5588] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5585] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5585] <... futex resumed>) = 0 [pid 5588] sync( [pid 5585] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] munmap(0x7f92368d1000, 138412032) = 0 [pid 5591] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5591] ioctl(4, LOOP_SET_FD, 3 [pid 5582] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5588] <... sync resumed>) = 0 [pid 5587] <... sync resumed>) = 0 [pid 5588] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5587] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] <... futex resumed>) = 1 [pid 5585] <... futex resumed>) = 0 [pid 5588] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] <... futex resumed>) = 1 [pid 5585] exit_group(0 [pid 5581] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5587] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5585] <... exit_group resumed>) = ? [pid 5581] exit_group(0 [pid 5588] <... futex resumed>) = ? [pid 5589] <... sync resumed>) = 0 [pid 5589] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5587] <... futex resumed>) = ? [pid 5584] <... futex resumed>) = 0 [pid 5581] <... exit_group resumed>) = ? [pid 5589] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] +++ exited with 0 +++ [pid 5584] exit_group(0 [pid 5055] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5589] <... futex resumed>) = ? [pid 5588] +++ exited with 0 +++ [pid 5586] <... sync resumed>) = 0 [pid 5585] +++ exited with 0 +++ [pid 5584] <... exit_group resumed>) = ? [pid 5581] +++ exited with 0 +++ [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] <... ioctl resumed>) = 0 [pid 5589] +++ exited with 0 +++ [pid 5586] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5584] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5581, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5591] close(3 [pid 5586] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5591] <... close resumed>) = 0 [pid 5586] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5582] exit_group(0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5584, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5591] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5586] <... futex resumed>) = ? [pid 5582] <... exit_group resumed>) = ? [pid 5060] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5591] <... mkdir resumed>) = 0 [pid 5586] +++ exited with 0 +++ [pid 5582] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(3, "", [pid 5055] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5582, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5591] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 3 [pid 5056] getdents64(3, [pid 5055] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... openat resumed>) = 3 [pid 5059] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... openat resumed>) = 4 [pid 5060] newfstatat(3, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] newfstatat(4, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] getdents64(4, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5059] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] getdents64(4, [pid 5057] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(3, "", [pid 5055] close(4) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [ 77.098905][ T5591] loop3: detected capacity change from 0 to 1024 [pid 5057] getdents64(3, [pid 5591] <... mount resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... rmdir resumed>) = 0 [pid 5591] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5057] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5591] <... chdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5591] ioctl(4, LOOP_CLR_FD [pid 5055] unlink("./43/binderfs" [pid 5591] <... ioctl resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5591] close(4 [pid 5055] getdents64(3, [pid 5591] <... close resumed>) = 0 [pid 5591] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5591] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3) = 0 [pid 5590] <... futex resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] rmdir("./43" [pid 5590] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5590] <... futex resumed>) = 1 [pid 5055] mkdir("./44", 0777 [pid 5591] <... futex resumed>) = 0 [pid 5590] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = 0 [pid 5056] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5057] <... umount2 resumed>) = 0 [pid 5055] <... mkdir resumed>) = 0 [pid 5591] <... mknod resumed>) = 0 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5591] <... futex resumed>) = 1 [pid 5059] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5590] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5590] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5591] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5590] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5590] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] newfstatat(4, "", [pid 5056] <... openat resumed>) = 4 [pid 5060] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(4, "", [pid 5055] <... openat resumed>) = 3 [pid 5059] getdents64(4, [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] umount2("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] <... open resumed>) = 4 [pid 5060] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] getdents64(4, [pid 5057] <... openat resumed>) = 4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] close(3 [pid 5060] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] newfstatat(4, "", [pid 5056] getdents64(4, [pid 5055] <... close resumed>) = 0 [pid 5060] newfstatat(4, "", [pid 5059] close(4 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5591] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] close(4./strace-static-x86_64: Process 5592 attached [pid 5591] <... futex resumed>) = 1 [pid 5590] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... close resumed>) = 0 [pid 5590] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5592 [pid 5592] set_robust_list(0x555555d616a0, 24 [pid 5591] sync( [pid 5590] <... futex resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(4, [pid 5056] <... rmdir resumed>) = 0 [pid 5592] <... set_robust_list resumed>) = 0 [pid 5590] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5592] chdir("./44" [pid 5059] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5592] <... chdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] unlink("./42/binderfs" [pid 5057] close(4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5592] <... prctl resumed>) = 0 [pid 5060] close(4 [pid 5059] <... unlink resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] unlink("./43/binderfs" [pid 5592] setpgid(0, 0 [pid 5060] <... close resumed>) = 0 [pid 5059] getdents64(3, [pid 5060] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] rmdir("./42/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... unlink resumed>) = 0 [pid 5592] <... setpgid resumed>) = 0 [pid 5059] close(3 [pid 5056] getdents64(3, [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5059] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] rmdir("./42" [pid 5056] close(3) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] rmdir("./43" [pid 5592] <... openat resumed>) = 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5060] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5057] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5592] write(3, "1000", 4 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] mkdir("./43", 0777 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] mkdir("./44", 0777 [pid 5592] <... write resumed>) = 4 [pid 5591] <... sync resumed>) = 0 [pid 5057] unlink("./42/binderfs" [pid 5592] close(3) = 0 [pid 5591] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] unlink("./43/binderfs" [pid 5057] <... unlink resumed>) = 0 [pid 5057] getdents64(3, [pid 5592] symlink("/dev/binderfs", "./binderfs" [pid 5591] <... futex resumed>) = 1 [pid 5590] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5592] <... symlink resumed>) = 0 [pid 5591] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5590] exit_group(0 [pid 5059] <... mkdir resumed>) = 0 [pid 5591] <... futex resumed>) = ? [pid 5590] <... exit_group resumed>) = ? [pid 5591] +++ exited with 0 +++ [pid 5590] +++ exited with 0 +++ [pid 5057] close(3 [pid 5060] getdents64(3, [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5590, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5057] <... close resumed>) = 0 [pid 5592] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] rmdir("./42" [pid 5056] <... mkdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5592] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5592] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... openat resumed>) = 3 [pid 5060] close(3 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5592] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] mkdir("./43", 0777 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5592] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] rmdir("./43" [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5592] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5056] close(3 [pid 5059] <... close resumed>) = 0 [pid 5592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5592] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] mkdir("./44", 0777 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5592] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... mkdir resumed>) = 0 [pid 5058] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5593 attached [pid 5592] <... mprotect resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5594 attached [pid 5593] set_robust_list(0x555555d616a0, 24 [pid 5592] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] <... openat resumed>) = 3 [pid 5594] set_robust_list(0x555555d616a0, 24 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5593 [pid 5058] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5594] <... set_robust_list resumed>) = 0 [pid 5593] <... set_robust_list resumed>) = 0 [pid 5592] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5594 [pid 5594] chdir("./44" [pid 5593] chdir("./43" [pid 5592] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... openat resumed>) = 3 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5594] <... chdir resumed>) = 0 [pid 5593] <... chdir resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5058] newfstatat(3, "", [pid 5057] close(3./strace-static-x86_64: Process 5595 attached [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5592] <... clone3 resumed> => {parent_tid=[5595]}, 88) = 5595 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... close resumed>) = 0 [pid 5595] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5594] <... prctl resumed>) = 0 [pid 5593] <... prctl resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5595] <... rseq resumed>) = 0 [pid 5594] setpgid(0, 0 [pid 5593] setpgid(0, 0 [pid 5592] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] close(3 [pid 5058] getdents64(3, [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5595] set_robust_list(0x7f923ecf19a0, 24 [pid 5592] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5594] <... setpgid resumed>) = 0 [pid 5593] <... setpgid resumed>) = 0 [pid 5592] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5596 attached [pid 5595] <... set_robust_list resumed>) = 0 [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5592] <... futex resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5596] set_robust_list(0x555555d616a0, 24 [pid 5595] rt_sigprocmask(SIG_SETMASK, [], [pid 5592] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5596] <... set_robust_list resumed>) = 0 [pid 5595] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5594] <... openat resumed>) = 3 [pid 5593] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5597 attached [pid 5595] memfd_create("syzkaller", 0 [pid 5594] write(3, "1000", 4 [pid 5596] chdir("./43" [pid 5597] set_robust_list(0x555555d616a0, 24 [pid 5595] <... memfd_create resumed>) = 3 [pid 5594] <... write resumed>) = 4 [pid 5593] write(3, "1000", 4 [pid 5596] <... chdir resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5596 [pid 5597] <... set_robust_list resumed>) = 0 [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5594] close(3 [pid 5593] <... write resumed>) = 4 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5597 [pid 5597] chdir("./44" [pid 5596] <... prctl resumed>) = 0 [pid 5595] <... mmap resumed>) = 0x7f92368d1000 [pid 5594] <... close resumed>) = 0 [pid 5593] close(3 [pid 5597] <... chdir resumed>) = 0 [pid 5596] setpgid(0, 0 [pid 5594] symlink("/dev/binderfs", "./binderfs" [pid 5593] <... close resumed>) = 0 [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] <... symlink resumed>) = 0 [pid 5593] symlink("/dev/binderfs", "./binderfs" [pid 5597] <... prctl resumed>) = 0 [pid 5593] <... symlink resumed>) = 0 [pid 5597] setpgid(0, 0 [pid 5595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5597] <... setpgid resumed>) = 0 [pid 5594] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5593] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5597] <... openat resumed>) = 3 [pid 5594] <... futex resumed>) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5594] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5593] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5597] write(3, "1000", 4 [pid 5594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5593] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5597] <... write resumed>) = 4 [pid 5594] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5593] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5597] close(3 [pid 5594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5597] <... close resumed>) = 0 [pid 5594] <... mmap resumed>) = 0x7f923ecd1000 [pid 5593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5597] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5594] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5593] <... mmap resumed>) = 0x7f923ecd1000 [pid 5594] <... mprotect resumed>) = 0 [pid 5593] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5596] <... setpgid resumed>) = 0 [pid 5594] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5593] <... mprotect resumed>) = 0 [pid 5597] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5594] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5593] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5597] <... futex resumed>) = 0 [pid 5594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5593] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5598 attached [pid 5597] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5593] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5598] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5594] <... clone3 resumed> => {parent_tid=[5598]}, 88) = 5598 ./strace-static-x86_64: Process 5599 attached [pid 5598] <... rseq resumed>) = 0 [pid 5597] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5594] rt_sigprocmask(SIG_SETMASK, [], [pid 5599] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5598] set_robust_list(0x7f923ecf19a0, 24 [pid 5597] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5594] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5593] <... clone3 resumed> => {parent_tid=[5599]}, 88) = 5599 [pid 5599] <... rseq resumed>) = 0 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5594] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] set_robust_list(0x7f923ecf19a0, 24 [pid 5598] rt_sigprocmask(SIG_SETMASK, [], [pid 5597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5596] <... openat resumed>) = 3 [pid 5594] <... futex resumed>) = 0 [pid 5593] rt_sigprocmask(SIG_SETMASK, [], [pid 5599] <... set_robust_list resumed>) = 0 [pid 5598] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5597] <... mmap resumed>) = 0x7f923ecd1000 [pid 5596] write(3, "1000", 4 [pid 5594] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5599] rt_sigprocmask(SIG_SETMASK, [], [pid 5598] memfd_create("syzkaller", 0 [pid 5597] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5596] <... write resumed>) = 4 [pid 5593] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] close(3 [pid 5058] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5596] <... close resumed>) = 0 [pid 5596] symlink("/dev/binderfs", "./binderfs" [pid 5599] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5598] <... memfd_create resumed>) = 3 [pid 5597] <... mprotect resumed>) = 0 [pid 5596] <... symlink resumed>) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5599] memfd_create("syzkaller", 0 [pid 5598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5597] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5593] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5599] <... memfd_create resumed>) = 3 [pid 5598] <... mmap resumed>) = 0x7f92368d1000 [pid 5595] <... write resumed>) = 524288 [pid 5599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5597] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5599] <... mmap resumed>) = 0x7f92368d1000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5597] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5596] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5596] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5596] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5595] munmap(0x7f92368d1000, 138412032 [pid 5058] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5596] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5600 attached [pid 5598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5596] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5595] <... munmap resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5595] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5058] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5600] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5597] <... clone3 resumed> => {parent_tid=[5600]}, 88) = 5600 [pid 5596] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] <... openat resumed>) = 4 [pid 5596] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] newfstatat(4, "", [pid 5600] <... rseq resumed>) = 0 [pid 5597] rt_sigprocmask(SIG_SETMASK, [], [pid 5596] <... mprotect resumed>) = 0 [pid 5595] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5600] set_robust_list(0x7f923ecf19a0, 24 [pid 5597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5596] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5595] ioctl(4, LOOP_SET_FD, 3 [pid 5058] getdents64(4, [pid 5600] <... set_robust_list resumed>) = 0 [pid 5598] <... write resumed>) = 524288 [pid 5597] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5600] rt_sigprocmask(SIG_SETMASK, [], [pid 5597] <... futex resumed>) = 0 [pid 5596] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5600] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5597] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] getdents64(4, [pid 5600] memfd_create("syzkaller", 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5601 attached [pid 5600] <... memfd_create resumed>) = 3 [pid 5596] <... clone3 resumed> => {parent_tid=[5601]}, 88) = 5601 [pid 5058] close(4 [pid 5601] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5596] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5058] <... rmdir resumed>) = 0 [pid 5601] <... rseq resumed>) = 0 [pid 5596] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5595] <... ioctl resumed>) = 0 [pid 5058] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] set_robust_list(0x7f923ecf19a0, 24 [pid 5596] <... futex resumed>) = 0 [pid 5601] <... set_robust_list resumed>) = 0 [pid 5596] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5595] close(3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] rt_sigprocmask(SIG_SETMASK, [], [pid 5598] munmap(0x7f92368d1000, 138412032 [pid 5595] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5601] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5599] <... write resumed>) = 524288 [pid 5595] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5595] <... mkdir resumed>) = 0 [pid 5058] unlink("./43/binderfs" [pid 5601] memfd_create("syzkaller", 0 [pid 5599] munmap(0x7f92368d1000, 138412032 [pid 5601] <... memfd_create resumed>) = 3 [pid 5600] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5598] <... munmap resumed>) = 0 [pid 5595] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] <... unlink resumed>) = 0 [pid 5601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5599] <... munmap resumed>) = 0 [pid 5058] getdents64(3, [pid 5601] <... mmap resumed>) = 0x7f92368d1000 [pid 5598] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5599] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5601] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5600] <... write resumed>) = 524288 [pid 5599] <... openat resumed>) = 4 [pid 5598] <... openat resumed>) = 4 [pid 5595] <... mount resumed>) = 0 [pid 5058] close(3 [pid 5600] munmap(0x7f92368d1000, 138412032 [pid 5599] ioctl(4, LOOP_SET_FD, 3 [pid 5598] ioctl(4, LOOP_SET_FD, 3 [pid 5595] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... close resumed>) = 0 [pid 5595] <... openat resumed>) = 3 [pid 5595] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [ 77.366872][ T5595] loop0: detected capacity change from 0 to 1024 [pid 5595] ioctl(4, LOOP_CLR_FD) = 0 [pid 5595] close(4) = 0 [pid 5595] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5595] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5592] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5592] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] rmdir("./43" [pid 5595] <... mknod resumed>) = 0 [pid 5595] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] <... write resumed>) = 524288 [pid 5600] <... munmap resumed>) = 0 [pid 5599] <... ioctl resumed>) = 0 [pid 5598] <... ioctl resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5601] munmap(0x7f92368d1000, 138412032 [pid 5600] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5598] close(3 [pid 5595] <... futex resumed>) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5058] mkdir("./44", 0777 [pid 5601] <... munmap resumed>) = 0 [pid 5600] <... openat resumed>) = 4 [pid 5598] <... close resumed>) = 0 [pid 5595] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5592] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5598] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5592] <... futex resumed>) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5601] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5600] ioctl(4, LOOP_SET_FD, 3 [pid 5598] <... mkdir resumed>) = 0 [pid 5595] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5592] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5599] close(3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5599] <... close resumed>) = 0 [pid 5599] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... openat resumed>) = 3 [pid 5601] <... openat resumed>) = 4 [pid 5601] ioctl(4, LOOP_SET_FD, 3 [pid 5599] <... mkdir resumed>) = 0 [pid 5600] <... ioctl resumed>) = 0 [pid 5599] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5598] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5600] close(3 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5601] <... ioctl resumed>) = 0 [pid 5600] <... close resumed>) = 0 [pid 5595] <... open resumed>) = 4 [pid 5058] close(3 [pid 5601] close(3 [pid 5598] <... mount resumed>) = 0 [pid 5595] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... close resumed>) = 0 [pid 5601] <... close resumed>) = 0 [pid 5600] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5598] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5595] <... futex resumed>) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5602 attached [pid 5601] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5600] <... mkdir resumed>) = 0 [pid 5599] <... mount resumed>) = 0 [pid 5598] <... openat resumed>) = 3 [pid 5595] sync( [pid 5592] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5598] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5592] <... futex resumed>) = 0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5602 [pid 5602] set_robust_list(0x555555d616a0, 24 [pid 5598] <... chdir resumed>) = 0 [pid 5592] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5602] <... set_robust_list resumed>) = 0 [pid 5598] ioctl(4, LOOP_CLR_FD [pid 5602] chdir("./44" [pid 5599] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5598] <... ioctl resumed>) = 0 [pid 5601] <... mkdir resumed>) = 0 [pid 5600] <... mount resumed>) = 0 [pid 5599] <... openat resumed>) = 3 [pid 5598] close(4 [pid 5602] <... chdir resumed>) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5600] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5599] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5598] <... close resumed>) = 0 [pid 5602] <... prctl resumed>) = 0 [pid 5600] <... openat resumed>) = 3 [pid 5599] <... chdir resumed>) = 0 [pid 5598] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] setpgid(0, 0 [pid 5600] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5599] ioctl(4, LOOP_CLR_FD [pid 5598] <... futex resumed>) = 1 [pid 5594] <... futex resumed>) = 0 [pid 5602] <... setpgid resumed>) = 0 [pid 5600] <... chdir resumed>) = 0 [pid 5598] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5601] <... mount resumed>) = 0 [pid 5600] ioctl(4, LOOP_CLR_FD [pid 5594] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] <... ioctl resumed>) = 0 [pid 5602] <... openat resumed>) = 3 [pid 5601] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5600] <... ioctl resumed>) = 0 [pid 5599] close(4 [pid 5598] <... futex resumed>) = 0 [pid 5594] <... futex resumed>) = 1 [ 77.408252][ T5598] loop1: detected capacity change from 0 to 1024 [ 77.419393][ T5599] loop4: detected capacity change from 0 to 1024 [ 77.435368][ T5600] loop5: detected capacity change from 0 to 1024 [ 77.445584][ T5601] loop2: detected capacity change from 0 to 1024 [pid 5602] write(3, "1000", 4 [pid 5601] <... openat resumed>) = 3 [pid 5600] close(4 [pid 5599] <... close resumed>) = 0 [pid 5598] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5594] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5602] <... write resumed>) = 4 [pid 5601] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5600] <... close resumed>) = 0 [pid 5599] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] close(3 [pid 5601] <... chdir resumed>) = 0 [pid 5600] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] <... futex resumed>) = 1 [pid 5593] <... futex resumed>) = 0 [pid 5602] <... close resumed>) = 0 [pid 5601] ioctl(4, LOOP_CLR_FD [pid 5600] <... futex resumed>) = 1 [pid 5599] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5597] <... futex resumed>) = 0 [pid 5593] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] symlink("/dev/binderfs", "./binderfs" [pid 5601] <... ioctl resumed>) = 0 [pid 5600] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5597] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5597] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5601] close(4 [pid 5593] <... futex resumed>) = 0 [pid 5598] <... mknod resumed>) = 0 [pid 5593] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5602] <... symlink resumed>) = 0 [pid 5601] <... close resumed>) = 0 [pid 5598] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] <... mknod resumed>) = 0 [pid 5598] <... futex resumed>) = 1 [pid 5595] <... sync resumed>) = 0 [pid 5594] <... futex resumed>) = 0 [pid 5601] <... futex resumed>) = 1 [pid 5600] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5598] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5595] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5594] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5602] <... futex resumed>) = 0 [pid 5600] <... futex resumed>) = 1 [pid 5599] <... mknod resumed>) = 0 [pid 5598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5597] <... futex resumed>) = 0 [pid 5595] <... futex resumed>) = 1 [pid 5594] <... futex resumed>) = 0 [pid 5592] <... futex resumed>) = 0 [pid 5602] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5600] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5599] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5598] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5597] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] <... futex resumed>) = 0 [pid 5595] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5594] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5592] exit_group(0 [pid 5602] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5599] <... futex resumed>) = 1 [pid 5597] <... futex resumed>) = 0 [pid 5596] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5595] <... futex resumed>) = ? [pid 5593] <... futex resumed>) = 0 [pid 5592] <... exit_group resumed>) = ? [pid 5602] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5601] <... futex resumed>) = 0 [pid 5600] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5599] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5597] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5596] <... futex resumed>) = 1 [pid 5602] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5601] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5596] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5595] +++ exited with 0 +++ [pid 5593] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5592] +++ exited with 0 +++ [pid 5602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5598] <... open resumed>) = 4 [pid 5593] <... futex resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5592, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5602] <... mmap resumed>) = 0x7f923ecd1000 [pid 5600] <... open resumed>) = 4 [pid 5599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5598] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5593] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5602] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5601] <... mknod resumed>) = 0 [pid 5600] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] <... futex resumed>) = 1 [pid 5597] <... futex resumed>) = 0 [pid 5602] <... mprotect resumed>) = 0 [pid 5601] <... futex resumed>) = 1 [pid 5600] sync( [pid 5598] <... futex resumed>) = 1 [pid 5597] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5596] <... futex resumed>) = 0 [pid 5594] <... futex resumed>) = 0 [pid 5055] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5602] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5601] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5597] <... futex resumed>) = 0 [pid 5596] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5597] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5596] <... futex resumed>) = 0 [pid 5602] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5596] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5594] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5602] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5601] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5598] sync( [pid 5594] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5603 attached [pid 5594] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5603] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5602] <... clone3 resumed> => {parent_tid=[5603]}, 88) = 5603 [pid 5055] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5603] <... rseq resumed>) = 0 [pid 5602] rt_sigprocmask(SIG_SETMASK, [], [pid 5601] <... open resumed>) = 4 [pid 5599] <... open resumed>) = 4 [pid 5602] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5601] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5602] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5601] <... futex resumed>) = 1 [pid 5599] <... futex resumed>) = 1 [pid 5596] <... futex resumed>) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5602] <... futex resumed>) = 0 [pid 5601] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5599] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5596] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5593] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5602] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5596] <... futex resumed>) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5601] sync( [pid 5599] sync( [pid 5596] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5593] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5603] set_robust_list(0x7f923ecf19a0, 24 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5055] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5603] memfd_create("syzkaller", 0) = 3 [pid 5603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5055] <... umount2 resumed>) = 0 [pid 5055] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5603] <... write resumed>) = 524288 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5601] <... sync resumed>) = 0 [pid 5600] <... sync resumed>) = 0 [pid 5599] <... sync resumed>) = 0 [pid 5598] <... sync resumed>) = 0 [pid 5597] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5601] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5599] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5598] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5597] exit_group(0 [pid 5055] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5601] <... futex resumed>) = 1 [pid 5600] <... futex resumed>) = ? [pid 5599] <... futex resumed>) = 1 [pid 5598] <... futex resumed>) = 1 [pid 5597] <... exit_group resumed>) = ? [pid 5596] <... futex resumed>) = 0 [pid 5594] <... futex resumed>) = 0 [pid 5593] <... futex resumed>) = 0 [pid 5600] +++ exited with 0 +++ [pid 5599] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5598] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5594] exit_group(0 [pid 5055] <... openat resumed>) = 4 [pid 5593] exit_group(0 [pid 5598] <... futex resumed>) = ? [pid 5594] <... exit_group resumed>) = ? [pid 5593] <... exit_group resumed>) = ? [pid 5055] newfstatat(4, "", [pid 5599] <... futex resumed>) = ? [pid 5599] +++ exited with 0 +++ [pid 5603] munmap(0x7f92368d1000, 138412032 [pid 5601] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5598] +++ exited with 0 +++ [pid 5597] +++ exited with 0 +++ [pid 5596] exit_group(0 [pid 5594] +++ exited with 0 +++ [pid 5593] +++ exited with 0 +++ [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5603] <... munmap resumed>) = 0 [pid 5601] <... futex resumed>) = ? [pid 5596] <... exit_group resumed>) = ? [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5594, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5055] getdents64(4, [pid 5601] +++ exited with 0 +++ [pid 5596] +++ exited with 0 +++ [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, [pid 5060] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5603] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4 [pid 5603] <... openat resumed>) = 4 [pid 5060] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5056] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5603] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] newfstatat(3, "", [pid 5059] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5056] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... rmdir resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] getdents64(3, [pid 5057] newfstatat(3, "", [pid 5056] <... openat resumed>) = 3 [pid 5055] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(3, "", [pid 5059] <... openat resumed>) = 3 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5056] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] unlink("./44/binderfs" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(3, [pid 5057] <... umount2 resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] getdents64(3, [pid 5059] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] close(3 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... close resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... umount2 resumed>) = 0 [pid 5057] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] rmdir("./44" [pid 5603] <... ioctl resumed>) = 0 [pid 5603] close(3 [pid 5057] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5603] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5055] <... rmdir resumed>) = 0 [pid 5603] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5057] newfstatat(4, "", [pid 5603] <... mkdir resumed>) = 0 [pid 5603] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5055] mkdir("./45", 0777 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] getdents64(4, [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] <... mkdir resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] umount2("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... openat resumed>) = 3 [pid 5059] openat(AT_FDCWD, "./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5059] <... openat resumed>) = 4 [pid 5057] getdents64(4, [pid 5056] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] newfstatat(4, "", [pid 5056] <... openat resumed>) = 4 [ 77.611876][ T5603] loop3: detected capacity change from 0 to 1024 [pid 5055] close(3 [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... close resumed>) = 0 [pid 5059] getdents64(4, [pid 5056] newfstatat(4, "", [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] close(4) = 0 [pid 5057] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... rmdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, [pid 5060] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5603] <... mount resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(4, [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5604 ./strace-static-x86_64: Process 5604 attached [pid 5603] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] close(4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5604] set_robust_list(0x555555d616a0, 24 [pid 5603] <... openat resumed>) = 3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5056] getdents64(4, [pid 5604] <... set_robust_list resumed>) = 0 [pid 5603] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] rmdir("./43/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] unlink("./43/binderfs" [pid 5059] <... rmdir resumed>) = 0 [pid 5056] close(4 [pid 5604] chdir("./45" [pid 5603] <... chdir resumed>) = 0 [pid 5060] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... unlink resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5604] <... chdir resumed>) = 0 [pid 5603] ioctl(4, LOOP_CLR_FD [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5603] <... ioctl resumed>) = 0 [pid 5604] <... prctl resumed>) = 0 [pid 5603] close(4 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5057] getdents64(3, [pid 5056] <... rmdir resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5057] close(3 [pid 5060] newfstatat(4, "", [pid 5057] <... close resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] rmdir("./43" [pid 5604] setpgid(0, 0 [pid 5603] <... close resumed>) = 0 [pid 5060] getdents64(4, [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] unlink("./43/binderfs" [pid 5604] <... setpgid resumed>) = 0 [pid 5603] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] getdents64(4, [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] <... futex resumed>) = 1 [pid 5602] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5057] mkdir("./44", 0777 [pid 5056] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5604] <... openat resumed>) = 3 [pid 5603] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5602] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5059] getdents64(3, [pid 5604] write(3, "1000", 4 [pid 5602] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5602] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] close(3 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] unlink("./44/binderfs" [pid 5604] <... write resumed>) = 4 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5603] <... mknod resumed>) = 0 [pid 5060] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] rmdir("./43" [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5060] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5059] <... rmdir resumed>) = 0 [pid 5057] close(3 [pid 5604] close(3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... close resumed>) = 0 [pid 5603] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] mkdir("./44", 0777 [pid 5056] <... unlink resumed>) = 0 [pid 5604] <... close resumed>) = 0 [pid 5603] <... futex resumed>) = 1 [pid 5602] <... futex resumed>) = 0 [pid 5060] unlink("./44/binderfs" [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5604] symlink("/dev/binderfs", "./binderfs" [pid 5603] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5602] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... unlink resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5056] getdents64(3, [pid 5602] <... futex resumed>) = 0 [pid 5602] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(3, [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5604] <... symlink resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5605 [pid 5604] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5603] <... open resumed>) = 4 [pid 5056] close(3 [pid 5604] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] <... close resumed>) = 0 [pid 5604] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5056] rmdir("./44"./strace-static-x86_64: Process 5605 attached [pid 5060] close(3 [pid 5605] set_robust_list(0x555555d616a0, 24 [pid 5604] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... rmdir resumed>) = 0 [pid 5605] <... set_robust_list resumed>) = 0 [pid 5060] rmdir("./44" [pid 5056] mkdir("./45", 0777 [pid 5605] chdir("./44" [pid 5604] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5603] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... rmdir resumed>) = 0 [pid 5059] close(3 [pid 5605] <... chdir resumed>) = 0 [pid 5604] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5603] <... futex resumed>) = 1 [pid 5602] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5603] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5602] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] mkdir("./45", 0777 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] <... prctl resumed>) = 0 [pid 5604] <... mmap resumed>) = 0x7f923ecd1000 [pid 5603] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5602] <... futex resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5606 attached [pid 5605] setpgid(0, 0 [pid 5604] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5603] sync( [pid 5602] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5605] <... setpgid resumed>) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5605] write(3, "1000", 4) = 4 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5606] set_robust_list(0x555555d616a0, 24 [pid 5605] close(3 [pid 5604] <... mprotect resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5606 [pid 5056] <... openat resumed>) = 3 [pid 5606] <... set_robust_list resumed>) = 0 [pid 5605] <... close resumed>) = 0 [pid 5604] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5606] chdir("./44" [pid 5605] symlink("/dev/binderfs", "./binderfs" [pid 5604] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5606] <... chdir resumed>) = 0 [pid 5605] <... symlink resumed>) = 0 [pid 5604] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] close(3 [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5605] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] close(3 [pid 5605] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5606] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5607 attached [pid 5605] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5606] setpgid(0, 0 [pid 5607] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5606] <... setpgid resumed>) = 0 [pid 5605] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5604] <... clone3 resumed> => {parent_tid=[5607]}, 88) = 5607 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5608 attached [pid 5607] <... rseq resumed>) = 0 [pid 5605] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5608] set_robust_list(0x555555d616a0, 24 [pid 5605] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5605] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5607] set_robust_list(0x7f923ecf19a0, 24 [pid 5608] chdir("./45" [pid 5605] <... mmap resumed>) = 0x7f923ecd1000 ./strace-static-x86_64: Process 5609 attached [pid 5608] <... chdir resumed>) = 0 [pid 5607] <... set_robust_list resumed>) = 0 [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5604] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5608 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] rt_sigprocmask(SIG_SETMASK, [], [pid 5605] <... mprotect resumed>) = 0 [pid 5604] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5609] set_robust_list(0x555555d616a0, 24 [pid 5608] <... prctl resumed>) = 0 [pid 5607] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5606] <... openat resumed>) = 3 [pid 5605] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5609 [pid 5608] setpgid(0, 0 [pid 5607] memfd_create("syzkaller", 0 [pid 5606] write(3, "1000", 4 [pid 5605] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5604] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] <... set_robust_list resumed>) = 0 [pid 5608] <... setpgid resumed>) = 0 [pid 5607] <... memfd_create resumed>) = 3 [pid 5606] <... write resumed>) = 4 [pid 5605] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5604] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5610 attached [pid 5609] chdir("./45" [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5606] close(3 [pid 5603] <... sync resumed>) = 0 [pid 5610] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5609] <... chdir resumed>) = 0 [pid 5608] <... openat resumed>) = 3 [pid 5607] <... mmap resumed>) = 0x7f92368d1000 [pid 5606] <... close resumed>) = 0 [pid 5605] <... clone3 resumed> => {parent_tid=[5610]}, 88) = 5610 [pid 5604] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5603] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] <... rseq resumed>) = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5608] write(3, "1000", 4 [pid 5606] symlink("/dev/binderfs", "./binderfs" [pid 5605] rt_sigprocmask(SIG_SETMASK, [], [pid 5602] <... futex resumed>) = 0 [pid 5603] <... futex resumed>) = 1 [pid 5610] set_robust_list(0x7f923ecf19a0, 24 [pid 5609] <... prctl resumed>) = 0 [pid 5608] <... write resumed>) = 4 [pid 5606] <... symlink resumed>) = 0 [pid 5605] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5603] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5602] exit_group(0 [pid 5610] <... set_robust_list resumed>) = 0 [pid 5609] setpgid(0, 0 [pid 5608] close(3 [pid 5605] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5603] <... futex resumed>) = ? [pid 5602] <... exit_group resumed>) = ? [pid 5610] rt_sigprocmask(SIG_SETMASK, [], [pid 5608] <... close resumed>) = 0 [pid 5605] <... futex resumed>) = 0 [pid 5603] +++ exited with 0 +++ [pid 5610] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5608] symlink("/dev/binderfs", "./binderfs" [pid 5605] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5610] memfd_create("syzkaller", 0 [pid 5602] +++ exited with 0 +++ [pid 5610] <... memfd_create resumed>) = 3 [pid 5609] <... setpgid resumed>) = 0 [pid 5608] <... symlink resumed>) = 0 [pid 5606] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] <... futex resumed>) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5602, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5610] <... mmap resumed>) = 0x7f92368d1000 [pid 5609] <... openat resumed>) = 3 [pid 5608] <... futex resumed>) = 0 [pid 5606] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5609] write(3, "1000", 4 [pid 5608] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5606] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5608] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5606] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5609] <... write resumed>) = 4 [pid 5608] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5606] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5609] close(3 [pid 5608] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5058] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5609] <... close resumed>) = 0 [pid 5606] <... mmap resumed>) = 0x7f923ecd1000 [pid 5609] symlink("/dev/binderfs", "./binderfs" [pid 5606] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5609] <... symlink resumed>) = 0 [pid 5608] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5606] <... mprotect resumed>) = 0 [pid 5608] <... mprotect resumed>) = 0 [pid 5606] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5609] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5606] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5609] <... futex resumed>) = 0 [pid 5607] <... write resumed>) = 524288 [pid 5606] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5611 attached [pid 5609] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5607] munmap(0x7f92368d1000, 138412032 [pid 5608] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5606] <... clone3 resumed> => {parent_tid=[5611]}, 88) = 5611 [pid 5611] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5609] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5611] <... rseq resumed>) = 0 [pid 5608] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5606] rt_sigprocmask(SIG_SETMASK, [], [pid 5611] set_robust_list(0x7f923ecf19a0, 24 [pid 5609] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5607] <... munmap resumed>) = 0 [pid 5606] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5612 attached [pid 5608] <... clone3 resumed> => {parent_tid=[5612]}, 88) = 5612 [pid 5058] <... umount2 resumed>) = 0 [pid 5612] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5608] rt_sigprocmask(SIG_SETMASK, [], [pid 5612] <... rseq resumed>) = 0 [pid 5608] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5612] set_robust_list(0x7f923ecf19a0, 24 [pid 5608] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5612] <... set_robust_list resumed>) = 0 [pid 5612] rt_sigprocmask(SIG_SETMASK, [], [pid 5608] <... futex resumed>) = 0 [pid 5612] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5608] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5612] memfd_create("syzkaller", 0) = 3 [pid 5611] <... set_robust_list resumed>) = 0 [pid 5610] <... write resumed>) = 524288 [pid 5609] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5607] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5606] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5611] rt_sigprocmask(SIG_SETMASK, [], [pid 5609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5607] <... openat resumed>) = 4 [pid 5606] <... futex resumed>) = 0 [pid 5612] <... mmap resumed>) = 0x7f92368d1000 [pid 5611] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5610] munmap(0x7f92368d1000, 138412032 [pid 5609] <... mmap resumed>) = 0x7f923ecd1000 [pid 5607] ioctl(4, LOOP_SET_FD, 3 [pid 5606] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5611] memfd_create("syzkaller", 0 [pid 5610] <... munmap resumed>) = 0 [pid 5609] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5610] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5610] <... openat resumed>) = 4 [pid 5058] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5610] ioctl(4, LOOP_SET_FD, 3 [pid 5609] <... mprotect resumed>) = 0 [pid 5611] <... memfd_create resumed>) = 3 [pid 5609] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5607] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 4 [pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5609] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5607] close(3 [pid 5611] <... mmap resumed>) = 0x7f92368d1000 [pid 5609] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5607] <... close resumed>) = 0 [pid 5607] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] newfstatat(4, "", [pid 5612] <... write resumed>) = 524288 [pid 5609] <... clone3 resumed> => {parent_tid=[5613]}, 88) = 5613 [pid 5607] <... mkdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5613 attached [pid 5609] rt_sigprocmask(SIG_SETMASK, [], [pid 5607] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5613] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5609] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5613] <... rseq resumed>) = 0 [pid 5609] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5609] <... futex resumed>) = 0 [pid 5613] set_robust_list(0x7f923ecf19a0, 24 [pid 5609] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5613] <... set_robust_list resumed>) = 0 [pid 5613] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] getdents64(4, [pid 5613] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5613] memfd_create("syzkaller", 0 [pid 5058] getdents64(4, [pid 5613] <... memfd_create resumed>) = 3 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5058] close(4 [pid 5613] <... mmap resumed>) = 0x7f92368d1000 [pid 5612] munmap(0x7f92368d1000, 138412032 [pid 5058] <... close resumed>) = 0 [pid 5612] <... munmap resumed>) = 0 [pid 5058] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5612] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... rmdir resumed>) = 0 [pid 5612] <... openat resumed>) = 4 [pid 5058] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] ioctl(4, LOOP_SET_FD, 3 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5607] <... mount resumed>) = 0 [pid 5613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5610] <... ioctl resumed>) = 0 [pid 5607] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5611] <... write resumed>) = 524288 [pid 5610] close(3 [pid 5607] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5607] <... chdir resumed>) = 0 [pid 5611] munmap(0x7f92368d1000, 138412032 [pid 5607] ioctl(4, LOOP_CLR_FD [pid 5610] <... close resumed>) = 0 [pid 5607] <... ioctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5610] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5607] close(4 [pid 5058] unlink("./44/binderfs" [pid 5610] <... mkdir resumed>) = 0 [pid 5607] <... close resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5610] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5058] close(3 [pid 5607] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... close resumed>) = 0 [pid 5607] <... futex resumed>) = 1 [pid 5604] <... futex resumed>) = 0 [pid 5058] rmdir("./44" [pid 5607] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5604] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5604] <... futex resumed>) = 0 [pid 5058] mkdir("./45", 0777 [pid 5611] <... munmap resumed>) = 0 [pid 5607] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5604] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... mkdir resumed>) = 0 [pid 5613] <... write resumed>) = 524288 [pid 5612] <... ioctl resumed>) = 0 [pid 5611] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5613] munmap(0x7f92368d1000, 138412032 [pid 5612] close(3 [pid 5611] <... openat resumed>) = 4 [pid 5607] <... mknod resumed>) = 0 [pid 5612] <... close resumed>) = 0 [pid 5611] ioctl(4, LOOP_SET_FD, 3 [pid 5607] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... openat resumed>) = 3 [ 77.860053][ T5607] loop0: detected capacity change from 0 to 1024 [ 77.867333][ T5610] loop2: detected capacity change from 0 to 1024 [ 77.890737][ T5612] loop5: detected capacity change from 0 to 1024 [pid 5613] <... munmap resumed>) = 0 [pid 5612] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5610] <... mount resumed>) = 0 [pid 5607] <... futex resumed>) = 1 [pid 5604] <... futex resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5612] <... mkdir resumed>) = 0 [pid 5610] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5612] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5610] <... openat resumed>) = 3 [pid 5058] close(3 [pid 5613] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5607] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5604] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... close resumed>) = 0 [pid 5610] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5614 attached [pid 5613] <... openat resumed>) = 4 [pid 5610] <... chdir resumed>) = 0 [pid 5607] <... open resumed>) = 4 [pid 5604] <... futex resumed>) = 0 [pid 5614] set_robust_list(0x555555d616a0, 24 [pid 5613] ioctl(4, LOOP_SET_FD, 3 [pid 5610] ioctl(4, LOOP_CLR_FD [pid 5604] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5607] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] <... set_robust_list resumed>) = 0 [pid 5611] <... ioctl resumed>) = 0 [pid 5607] <... futex resumed>) = 0 [pid 5604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5610] <... ioctl resumed>) = 0 [pid 5610] close(4) = 0 [pid 5610] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5605] <... futex resumed>) = 0 [pid 5610] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5605] <... futex resumed>) = 0 [pid 5610] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5605] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5614 [pid 5614] chdir("./45" [pid 5612] <... mount resumed>) = 0 [pid 5611] close(3 [pid 5610] <... mknod resumed>) = 0 [pid 5607] sync( [pid 5604] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] <... chdir resumed>) = 0 [pid 5612] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5611] <... close resumed>) = 0 [pid 5604] <... futex resumed>) = 0 [pid 5613] <... ioctl resumed>) = 0 [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5613] close(3 [pid 5612] <... openat resumed>) = 3 [pid 5611] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5610] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5604] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5614] <... prctl resumed>) = 0 [pid 5613] <... close resumed>) = 0 [pid 5612] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5610] <... futex resumed>) = 1 [pid 5605] <... futex resumed>) = 0 [pid 5614] setpgid(0, 0 [pid 5613] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5612] <... chdir resumed>) = 0 [pid 5611] <... mkdir resumed>) = 0 [pid 5610] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] <... setpgid resumed>) = 0 [pid 5613] <... mkdir resumed>) = 0 [pid 5612] ioctl(4, LOOP_CLR_FD [pid 5610] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5605] <... futex resumed>) = 0 [pid 5611] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5607] <... sync resumed>) = 0 [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5613] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5612] <... ioctl resumed>) = 0 [pid 5610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5607] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5605] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5614] <... openat resumed>) = 3 [pid 5612] close(4 [pid 5607] <... futex resumed>) = 1 [pid 5604] <... futex resumed>) = 0 [pid 5614] write(3, "1000", 4 [pid 5612] <... close resumed>) = 0 [pid 5607] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5604] exit_group(0 [pid 5614] <... write resumed>) = 4 [pid 5613] <... mount resumed>) = 0 [pid 5612] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5607] <... futex resumed>) = ? [pid 5604] <... exit_group resumed>) = ? [pid 5614] close(3 [pid 5613] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5612] <... futex resumed>) = 1 [pid 5608] <... futex resumed>) = 0 [pid 5607] +++ exited with 0 +++ [pid 5612] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5610] <... open resumed>) = 4 [pid 5614] <... close resumed>) = 0 [pid 5608] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] symlink("/dev/binderfs", "./binderfs" [pid 5613] <... openat resumed>) = 3 [pid 5611] <... mount resumed>) = 0 [pid 5608] <... futex resumed>) = 0 [ 77.926086][ T5611] loop4: detected capacity change from 0 to 1024 [ 77.943813][ T5613] loop1: detected capacity change from 0 to 1024 [pid 5604] +++ exited with 0 +++ [pid 5614] <... symlink resumed>) = 0 [pid 5613] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5611] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5610] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5604, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5614] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5613] <... chdir resumed>) = 0 [pid 5611] <... openat resumed>) = 3 [pid 5610] <... futex resumed>) = 1 [pid 5605] <... futex resumed>) = 0 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5614] <... futex resumed>) = 0 [pid 5613] ioctl(4, LOOP_CLR_FD [pid 5612] <... mknod resumed>) = 0 [pid 5611] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5610] sync( [pid 5605] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5614] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5613] <... ioctl resumed>) = 0 [pid 5611] <... chdir resumed>) = 0 [pid 5605] <... futex resumed>) = 0 [pid 5614] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5613] close(4 [pid 5611] ioctl(4, LOOP_CLR_FD [pid 5055] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5613] <... close resumed>) = 0 [pid 5612] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] <... ioctl resumed>) = 0 [pid 5605] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5613] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5612] <... futex resumed>) = 1 [pid 5611] close(4 [pid 5608] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5613] <... futex resumed>) = 1 [pid 5612] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5611] <... close resumed>) = 0 [pid 5609] <... futex resumed>) = 0 [pid 5608] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5613] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5609] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... futex resumed>) = 0 [pid 5611] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] <... openat resumed>) = 3 [pid 5614] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5612] <... open resumed>) = 4 [pid 5611] <... futex resumed>) = 1 [pid 5609] <... futex resumed>) = 0 [pid 5608] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5606] <... futex resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5613] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5612] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5609] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5606] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5614] <... mmap resumed>) = 0x7f923ecd1000 [pid 5612] <... futex resumed>) = 1 [pid 5608] <... futex resumed>) = 0 [pid 5606] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5614] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5612] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5608] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5614] <... mprotect resumed>) = 0 [pid 5612] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5608] <... futex resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5614] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5613] <... mknod resumed>) = 0 [pid 5612] sync( [pid 5611] <... mknod resumed>) = 0 [pid 5608] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5614] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5613] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5614] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5613] <... futex resumed>) = 1 [pid 5611] <... futex resumed>) = 1 [pid 5609] <... futex resumed>) = 0 [pid 5606] <... futex resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5615 attached [pid 5613] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5612] <... sync resumed>) = 0 [pid 5611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5610] <... sync resumed>) = 0 [pid 5609] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5615] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5614] <... clone3 resumed> => {parent_tid=[5615]}, 88) = 5615 [pid 5612] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] <... futex resumed>) = 0 [pid 5606] <... futex resumed>) = 0 [pid 5615] <... rseq resumed>) = 0 [pid 5614] rt_sigprocmask(SIG_SETMASK, [], [pid 5612] <... futex resumed>) = 1 [pid 5610] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5608] <... futex resumed>) = 0 [pid 5606] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5615] set_robust_list(0x7f923ecf19a0, 24 [pid 5614] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5612] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5610] <... futex resumed>) = 1 [pid 5608] exit_group(0 [pid 5605] <... futex resumed>) = 0 [pid 5615] <... set_robust_list resumed>) = 0 [pid 5614] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5612] <... futex resumed>) = ? [pid 5611] <... open resumed>) = 4 [pid 5610] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5608] <... exit_group resumed>) = ? [pid 5605] exit_group(0 [pid 5615] rt_sigprocmask(SIG_SETMASK, [], [pid 5614] <... futex resumed>) = 0 [pid 5613] <... open resumed>) = 4 [pid 5612] +++ exited with 0 +++ [pid 5611] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] <... futex resumed>) = ? [pid 5608] +++ exited with 0 +++ [pid 5605] <... exit_group resumed>) = ? [pid 5615] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5614] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5610] +++ exited with 0 +++ [pid 5605] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5608, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5055] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] memfd_create("syzkaller", 0 [pid 5611] <... futex resumed>) = 1 [pid 5606] <... futex resumed>) = 0 [pid 5613] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5615] <... memfd_create resumed>) = 3 [pid 5613] <... futex resumed>) = 1 [pid 5611] sync( [pid 5609] <... futex resumed>) = 0 [pid 5606] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5609] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] <... futex resumed>) = 0 [pid 5060] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] <... mmap resumed>) = 0x7f92368d1000 [pid 5613] sync( [pid 5609] <... futex resumed>) = 0 [pid 5606] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5609] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... openat resumed>) = 3 [pid 5057] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5060] newfstatat(3, "", [pid 5057] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] getdents64(3, [pid 5057] getdents64(3, [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5055] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5055] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5055] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5055] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] unlink("./45/binderfs") = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5055] close(3) = 0 [pid 5055] rmdir("./45") = 0 [pid 5615] <... write resumed>) = 524288 [pid 5055] mkdir("./46", 0777 [pid 5615] munmap(0x7f92368d1000, 138412032 [pid 5055] <... mkdir resumed>) = 0 [pid 5615] <... munmap resumed>) = 0 [pid 5613] <... sync resumed>) = 0 [pid 5611] <... sync resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5613] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5613] <... futex resumed>) = 1 [pid 5611] <... futex resumed>) = 1 [pid 5609] <... futex resumed>) = 0 [pid 5606] <... futex resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5615] ioctl(4, LOOP_SET_FD, 3 [pid 5613] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5611] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5609] exit_group(0 [pid 5606] exit_group(0 [pid 5060] <... umount2 resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5613] <... futex resumed>) = ? [pid 5611] <... futex resumed>) = ? [pid 5609] <... exit_group resumed>) = ? [pid 5606] <... exit_group resumed>) = ? [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5615] <... ioctl resumed>) = 0 [pid 5613] +++ exited with 0 +++ [pid 5611] +++ exited with 0 +++ [pid 5609] +++ exited with 0 +++ [pid 5615] close(3 [pid 5606] +++ exited with 0 +++ [pid 5060] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5055] close(3 [pid 5056] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5615] <... close resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5615] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(3, "", [pid 5055] <... close resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5606, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5615] <... mkdir resumed>) = 0 [pid 5060] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(3, [pid 5060] <... openat resumed>) = 4 [pid 5060] newfstatat(4, "", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5616 ./strace-static-x86_64: Process 5616 attached [pid 5059] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5616] set_robust_list(0x555555d616a0, 24 [pid 5059] <... openat resumed>) = 3 [pid 5616] <... set_robust_list resumed>) = 0 [pid 5059] newfstatat(3, "", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... openat resumed>) = 4 [pid 5060] getdents64(4, [pid 5615] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5616] chdir("./46" [pid 5059] getdents64(3, [pid 5616] <... chdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5059] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5616] <... prctl resumed>) = 0 [pid 5616] setpgid(0, 0) = 0 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] newfstatat(4, "", [pid 5616] write(3, "1000", 4 [pid 5615] <... mount resumed>) = 0 [pid 5616] <... write resumed>) = 4 [pid 5615] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5616] close(3 [pid 5615] <... openat resumed>) = 3 [pid 5060] getdents64(4, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5615] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5615] ioctl(4, LOOP_CLR_FD [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(4, [pid 5615] <... ioctl resumed>) = 0 [pid 5060] close(4 [pid 5616] <... close resumed>) = 0 [ 78.107337][ T5615] loop3: detected capacity change from 0 to 1024 [pid 5615] close(4 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5616] symlink("/dev/binderfs", "./binderfs" [pid 5615] <... close resumed>) = 0 [pid 5616] <... symlink resumed>) = 0 [pid 5615] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5614] <... futex resumed>) = 0 [pid 5615] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5614] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5616] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5614] <... futex resumed>) = 0 [pid 5616] <... futex resumed>) = 0 [pid 5057] getdents64(4, [pid 5060] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5616] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5614] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5616] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5615] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5616] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5615] <... mknod resumed>) = 0 [pid 5060] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] close(4 [pid 5616] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5615] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5615] <... futex resumed>) = 1 [pid 5614] <... futex resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5616] <... mmap resumed>) = 0x7f923ecd1000 [pid 5614] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... close resumed>) = 0 [pid 5616] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5615] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5614] <... futex resumed>) = 0 [pid 5057] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5616] <... mprotect resumed>) = 0 [pid 5615] <... open resumed>) = 4 [pid 5614] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5616] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5057] <... rmdir resumed>) = 0 [pid 5616] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5616] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5617 attached [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5616] <... clone3 resumed> => {parent_tid=[5617]}, 88) = 5617 [pid 5616] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] unlink("./45/binderfs" [pid 5059] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5616] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5615] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] <... rseq resumed>) = 0 [pid 5616] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5615] <... futex resumed>) = 1 [pid 5614] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5056] <... umount2 resumed>) = 0 [pid 5617] set_robust_list(0x7f923ecf19a0, 24 [pid 5616] <... futex resumed>) = 0 [pid 5615] sync( [pid 5614] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5617] <... set_robust_list resumed>) = 0 [pid 5616] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5614] <... futex resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] unlink("./44/binderfs" [pid 5060] close(3 [pid 5617] rt_sigprocmask(SIG_SETMASK, [], [pid 5614] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... close resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5060] rmdir("./45" [pid 5057] getdents64(3, [pid 5617] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] memfd_create("syzkaller", 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5617] <... memfd_create resumed>) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] mkdir("./46", 0777 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5059] newfstatat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... mkdir resumed>) = 0 [pid 5057] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] rmdir("./44" [pid 5056] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... openat resumed>) = 3 [pid 5057] <... rmdir resumed>) = 0 [pid 5057] mkdir("./45", 0777 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5059] umount2("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] openat(AT_FDCWD, "./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... openat resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] getdents64(4, [pid 5056] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] newfstatat(4, "", [pid 5060] close(3 [pid 5059] getdents64(4, [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] getdents64(4, [pid 5059] close(4 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5056] getdents64(4, [pid 5059] rmdir("./44/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5618 attached [pid 5615] <... sync resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] close(4 [pid 5618] set_robust_list(0x555555d616a0, 24 [pid 5617] <... write resumed>) = 524288 [pid 5615] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5618] <... set_robust_list resumed>) = 0 [pid 5615] <... futex resumed>) = 1 [pid 5614] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] close(3 [pid 5056] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5618] chdir("./46" [pid 5617] munmap(0x7f92368d1000, 138412032 [pid 5615] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5614] exit_group(0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5618 [pid 5059] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5057] <... close resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5618] <... chdir resumed>) = 0 [pid 5617] <... munmap resumed>) = 0 [pid 5615] <... futex resumed>) = ? [pid 5614] <... exit_group resumed>) = ? [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] unlink("./44/binderfs") = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5615] +++ exited with 0 +++ [pid 5614] +++ exited with 0 +++ [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5617] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] getdents64(3, [pid 5056] newfstatat(AT_FDCWD, "./45/binderfs", ./strace-static-x86_64: Process 5619 attached [pid 5618] <... prctl resumed>) = 0 [pid 5617] <... openat resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5614, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5618] setpgid(0, 0 [pid 5059] close(3 [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5056] unlink("./45/binderfs" [pid 5618] <... setpgid resumed>) = 0 [pid 5617] ioctl(4, LOOP_SET_FD, 3 [pid 5059] <... close resumed>) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5056] <... unlink resumed>) = 0 [pid 5619] set_robust_list(0x555555d616a0, 24 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5619 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5619] chdir("./45" [pid 5617] <... ioctl resumed>) = 0 [pid 5059] rmdir("./44" [pid 5619] <... chdir resumed>) = 0 [pid 5617] close(3 [pid 5056] getdents64(3, [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5617] <... close resumed>) = 0 [pid 5619] <... prctl resumed>) = 0 [pid 5617] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5619] setpgid(0, 0 [pid 5058] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5619] <... setpgid resumed>) = 0 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5058] getdents64(3, [pid 5617] <... mkdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] close(3 [pid 5619] <... openat resumed>) = 3 [pid 5618] <... openat resumed>) = 3 [pid 5617] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] mkdir("./45", 0777 [pid 5056] <... close resumed>) = 0 [pid 5056] rmdir("./45" [pid 5059] <... mkdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5618] write(3, "1000", 4 [pid 5619] write(3, "1000", 4 [pid 5618] <... write resumed>) = 4 [pid 5618] close(3 [pid 5619] <... write resumed>) = 4 [pid 5618] <... close resumed>) = 0 [pid 5619] close(3 [pid 5618] symlink("/dev/binderfs", "./binderfs" [pid 5056] mkdir("./46", 0777) = 0 [pid 5618] <... symlink resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5058] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5619] <... close resumed>) = 0 [pid 5618] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5619] symlink("/dev/binderfs", "./binderfs" [pid 5618] <... futex resumed>) = 0 [pid 5619] <... symlink resumed>) = 0 [pid 5618] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5059] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5618] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5618] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5619] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5618] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5056] close(3 [pid 5619] <... futex resumed>) = 0 [pid 5618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5617] <... mount resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... close resumed>) = 0 [pid 5619] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5618] <... mmap resumed>) = 0x7f923ecd1000 [pid 5617] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5619] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5618] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5617] <... openat resumed>) = 3 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5621 attached ./strace-static-x86_64: Process 5620 attached [pid 5619] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5618] <... mprotect resumed>) = 0 [pid 5617] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5620 [pid 5058] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5621 [pid 5621] set_robust_list(0x555555d616a0, 24 [pid 5620] set_robust_list(0x555555d616a0, 24 [pid 5619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5618] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5617] <... chdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5621] <... set_robust_list resumed>) = 0 [pid 5620] <... set_robust_list resumed>) = 0 [pid 5619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5618] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5617] ioctl(4, LOOP_CLR_FD [pid 5058] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5621] chdir("./46" [pid 5620] chdir("./45" [pid 5619] <... mmap resumed>) = 0x7f923ecd1000 [pid 5618] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5617] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5622 attached [pid 5621] <... chdir resumed>) = 0 [pid 5620] <... chdir resumed>) = 0 [ 78.262045][ T5617] loop0: detected capacity change from 0 to 1024 [pid 5619] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5617] close(4 [pid 5058] newfstatat(4, "", [pid 5622] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5619] <... mprotect resumed>) = 0 [pid 5618] <... clone3 resumed> => {parent_tid=[5622]}, 88) = 5622 [pid 5617] <... close resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5622] <... rseq resumed>) = 0 [pid 5621] <... prctl resumed>) = 0 [pid 5620] <... prctl resumed>) = 0 [pid 5619] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5618] rt_sigprocmask(SIG_SETMASK, [], [pid 5617] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(4, [pid 5622] set_robust_list(0x7f923ecf19a0, 24 [pid 5621] setpgid(0, 0 [pid 5620] setpgid(0, 0 [pid 5619] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5618] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5617] <... futex resumed>) = 1 [pid 5616] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5622] <... set_robust_list resumed>) = 0 [pid 5621] <... setpgid resumed>) = 0 [pid 5620] <... setpgid resumed>) = 0 [pid 5619] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5618] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5616] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] getdents64(4, ./strace-static-x86_64: Process 5623 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5618] <... futex resumed>) = 0 [pid 5617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5616] <... futex resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5623] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5622] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5621] <... openat resumed>) = 3 [pid 5620] <... openat resumed>) = 3 [pid 5619] <... clone3 resumed> => {parent_tid=[5623]}, 88) = 5623 [pid 5618] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5617] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5616] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] close(4 [pid 5623] <... rseq resumed>) = 0 [pid 5622] memfd_create("syzkaller", 0 [pid 5621] write(3, "1000", 4 [pid 5620] write(3, "1000", 4 [pid 5619] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... close resumed>) = 0 [pid 5623] set_robust_list(0x7f923ecf19a0, 24 [pid 5622] <... memfd_create resumed>) = 3 [pid 5621] <... write resumed>) = 4 [pid 5620] <... write resumed>) = 4 [pid 5619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5617] <... mknod resumed>) = 0 [pid 5058] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5623] <... set_robust_list resumed>) = 0 [pid 5622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5621] close(3 [pid 5620] close(3 [pid 5619] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 [pid 5623] rt_sigprocmask(SIG_SETMASK, [], [pid 5620] <... close resumed>) = 0 [pid 5617] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5623] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5620] symlink("/dev/binderfs", "./binderfs" [pid 5617] <... futex resumed>) = 1 [pid 5616] <... futex resumed>) = 0 [pid 5058] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5623] memfd_create("syzkaller", 0 [pid 5620] <... symlink resumed>) = 0 [pid 5617] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5616] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5621] <... close resumed>) = 0 [pid 5619] <... futex resumed>) = 0 [pid 5616] <... futex resumed>) = 0 [pid 5622] <... mmap resumed>) = 0x7f92368d1000 [pid 5623] <... memfd_create resumed>) = 3 [pid 5621] symlink("/dev/binderfs", "./binderfs" [pid 5620] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5619] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5616] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5620] <... futex resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5623] <... mmap resumed>) = 0x7f92368d1000 [pid 5621] <... symlink resumed>) = 0 [pid 5620] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5058] unlink("./45/binderfs" [pid 5623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5621] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5620] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5617] <... open resumed>) = 4 [pid 5058] <... unlink resumed>) = 0 [pid 5621] <... futex resumed>) = 0 [pid 5620] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5621] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5620] <... mmap resumed>) = 0x7f923ecd1000 [pid 5058] getdents64(3, [pid 5620] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5620] <... mprotect resumed>) = 0 [pid 5058] close(3 [pid 5621] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5620] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5058] <... close resumed>) = 0 [pid 5621] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5620] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5058] rmdir("./45" [pid 5621] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5620] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5617] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5624 attached [pid 5621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5617] <... futex resumed>) = 1 [pid 5616] <... futex resumed>) = 0 [pid 5624] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5621] <... mmap resumed>) = 0x7f923ecd1000 [pid 5620] <... clone3 resumed> => {parent_tid=[5624]}, 88) = 5624 [pid 5617] sync( [pid 5616] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5621] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5624] <... rseq resumed>) = 0 [pid 5620] rt_sigprocmask(SIG_SETMASK, [], [pid 5616] <... futex resumed>) = 0 [pid 5058] mkdir("./46", 0777 [pid 5624] set_robust_list(0x7f923ecf19a0, 24 [pid 5621] <... mprotect resumed>) = 0 [pid 5620] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5616] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... mkdir resumed>) = 0 [pid 5624] <... set_robust_list resumed>) = 0 [pid 5620] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] rt_sigprocmask(SIG_SETMASK, [], [pid 5620] <... futex resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5621] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5624] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5621] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5620] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] <... openat resumed>) = 3 [pid 5624] memfd_create("syzkaller", 0 [pid 5621] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5058] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5625 attached [pid 5625] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5624] <... memfd_create resumed>) = 3 [pid 5621] <... clone3 resumed> => {parent_tid=[5625]}, 88) = 5625 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5625] <... rseq resumed>) = 0 [pid 5624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5621] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] close(3 [pid 5625] set_robust_list(0x7f923ecf19a0, 24 [pid 5624] <... mmap resumed>) = 0x7f92368d1000 [pid 5622] <... write resumed>) = 524288 [pid 5621] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5617] <... sync resumed>) = 0 [pid 5625] <... set_robust_list resumed>) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [], [pid 5622] munmap(0x7f92368d1000, 138412032 [pid 5621] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5623] <... write resumed>) = 524288 [pid 5058] <... close resumed>) = 0 [pid 5623] munmap(0x7f92368d1000, 138412032 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] <... munmap resumed>) = 0 [pid 5623] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5623] ioctl(4, LOOP_SET_FD, 3 [pid 5625] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5621] <... futex resumed>) = 0 [pid 5617] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5626 attached [pid 5625] memfd_create("syzkaller", 0 [pid 5622] <... munmap resumed>) = 0 [pid 5621] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5617] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5616] <... futex resumed>) = 0 [pid 5626] set_robust_list(0x555555d616a0, 24 [pid 5625] <... memfd_create resumed>) = 3 [pid 5624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5616] exit_group(0 [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5626 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5622] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5617] <... futex resumed>) = ? [pid 5616] <... exit_group resumed>) = ? [pid 5626] chdir("./46" [pid 5617] +++ exited with 0 +++ [pid 5626] <... chdir resumed>) = 0 [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5622] <... openat resumed>) = 4 [pid 5616] +++ exited with 0 +++ [pid 5626] setpgid(0, 0 [pid 5625] <... mmap resumed>) = 0x7f92368d1000 [pid 5626] <... setpgid resumed>) = 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5626] write(3, "1000", 4 [pid 5055] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] <... write resumed>) = 4 [pid 5625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5624] <... write resumed>) = 524288 [pid 5622] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5626] close(3 [pid 5624] munmap(0x7f92368d1000, 138412032 [pid 5055] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5626] <... close resumed>) = 0 [pid 5624] <... munmap resumed>) = 0 [pid 5623] <... ioctl resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5626] symlink("/dev/binderfs", "./binderfs" [pid 5055] newfstatat(3, "", [pid 5626] <... symlink resumed>) = 0 [pid 5623] close(3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5626] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5623] <... close resumed>) = 0 [pid 5055] getdents64(3, [pid 5626] <... futex resumed>) = 0 [pid 5624] <... openat resumed>) = 4 [pid 5623] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5622] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5626] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5624] ioctl(4, LOOP_SET_FD, 3 [pid 5623] <... mkdir resumed>) = 0 [pid 5622] close(3 [pid 5055] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5626] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5622] <... close resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5625] <... write resumed>) = 524288 [pid 5624] <... ioctl resumed>) = 0 [pid 5622] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] <... umount2 resumed>) = 0 [pid 5626] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5623] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5622] <... mkdir resumed>) = 0 [pid 5626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5622] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5626] <... mmap resumed>) = 0x7f923ecd1000 [pid 5626] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] <... mount resumed>) = 0 [pid 5626] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5627 attached [pid 5626] <... clone3 resumed> => {parent_tid=[5627]}, 88) = 5627 [pid 5622] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5627] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5626] rt_sigprocmask(SIG_SETMASK, [], [pid 5623] <... mount resumed>) = 0 [pid 5622] <... openat resumed>) = 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] <... rseq resumed>) = 0 [pid 5626] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5623] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5622] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5627] set_robust_list(0x7f923ecf19a0, 24 [pid 5626] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5623] <... openat resumed>) = 3 [pid 5622] <... chdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5626] <... futex resumed>) = 0 [pid 5625] munmap(0x7f92368d1000, 138412032 [pid 5623] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5622] ioctl(4, LOOP_CLR_FD [pid 5055] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] rt_sigprocmask(SIG_SETMASK, [], [pid 5626] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5625] <... munmap resumed>) = 0 [pid 5624] close(3 [pid 5623] <... chdir resumed>) = 0 [pid 5622] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5625] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5624] <... close resumed>) = 0 [pid 5623] ioctl(4, LOOP_CLR_FD [pid 5622] close(4 [pid 5055] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5627] memfd_create("syzkaller", 0 [pid 5625] <... openat resumed>) = 4 [pid 5624] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5623] <... ioctl resumed>) = 0 [pid 5622] <... close resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5627] <... memfd_create resumed>) = 3 [pid 5624] <... mkdir resumed>) = 0 [pid 5623] close(4 [pid 5055] newfstatat(4, "", [pid 5627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5625] ioctl(4, LOOP_SET_FD, 3 [pid 5623] <... close resumed>) = 0 [pid 5622] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 78.399538][ T5623] loop2: detected capacity change from 0 to 1024 [ 78.423914][ T5622] loop5: detected capacity change from 0 to 1024 [ 78.435227][ T5624] loop4: detected capacity change from 0 to 1024 [pid 5627] <... mmap resumed>) = 0x7f92368d1000 [pid 5623] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5624] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5623] <... futex resumed>) = 1 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5623] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5622] <... futex resumed>) = 1 [pid 5619] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5619] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5619] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] close(4 [pid 5623] <... futex resumed>) = 0 [pid 5622] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5618] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5624] <... mount resumed>) = 0 [pid 5623] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5618] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5627] <... write resumed>) = 524288 [pid 5624] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5622] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5618] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5624] <... openat resumed>) = 3 [pid 5055] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5624] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5624] <... chdir resumed>) = 0 [pid 5618] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5624] ioctl(4, LOOP_CLR_FD [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5624] <... ioctl resumed>) = 0 [pid 5623] <... mknod resumed>) = 0 [pid 5055] unlink("./46/binderfs" [pid 5625] <... ioctl resumed>) = 0 [pid 5624] close(4 [pid 5055] <... unlink resumed>) = 0 [pid 5624] <... close resumed>) = 0 [pid 5623] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5625] close(3 [pid 5624] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5623] <... futex resumed>) = 1 [pid 5622] <... mknod resumed>) = 0 [pid 5619] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5625] <... close resumed>) = 0 [pid 5624] <... futex resumed>) = 1 [pid 5620] <... futex resumed>) = 0 [pid 5619] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5627] munmap(0x7f92368d1000, 138412032 [pid 5625] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5624] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5622] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5620] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5619] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5627] <... munmap resumed>) = 0 [pid 5625] <... mkdir resumed>) = 0 [pid 5624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5622] <... futex resumed>) = 1 [pid 5620] <... futex resumed>) = 0 [pid 5619] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5618] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5627] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5624] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5620] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5618] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./46" [pid 5627] <... openat resumed>) = 4 [pid 5625] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5623] <... open resumed>) = 4 [pid 5622] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5618] <... futex resumed>) = 0 [ 78.470831][ T5625] loop1: detected capacity change from 0 to 1024 [pid 5055] <... rmdir resumed>) = 0 [pid 5627] ioctl(4, LOOP_SET_FD, 3 [pid 5618] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5627] <... ioctl resumed>) = 0 [pid 5624] <... mknod resumed>) = 0 [pid 5623] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] mkdir("./47", 0777 [pid 5623] <... futex resumed>) = 1 [pid 5619] <... futex resumed>) = 0 [pid 5619] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5619] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5623] sync( [pid 5622] <... open resumed>) = 4 [pid 5055] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5624] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5624] <... futex resumed>) = 1 [pid 5620] <... futex resumed>) = 0 [pid 5624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5620] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5620] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5622] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5620] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5622] <... futex resumed>) = 1 [pid 5618] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] <... mount resumed>) = 0 [pid 5622] sync( [pid 5618] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5628 attached [pid 5625] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5618] <... futex resumed>) = 0 [pid 5628] set_robust_list(0x555555d616a0, 24 [pid 5625] <... openat resumed>) = 3 [pid 5618] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5628 [pid 5628] <... set_robust_list resumed>) = 0 [pid 5625] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5624] <... open resumed>) = 4 [pid 5625] <... chdir resumed>) = 0 [pid 5627] close(3 [pid 5628] chdir("./47" [pid 5625] ioctl(4, LOOP_CLR_FD [pid 5624] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5628] <... chdir resumed>) = 0 [pid 5627] <... close resumed>) = 0 [pid 5625] <... ioctl resumed>) = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5625] close(4 [pid 5623] <... sync resumed>) = 0 [pid 5622] <... sync resumed>) = 0 [pid 5628] <... prctl resumed>) = 0 [pid 5625] <... close resumed>) = 0 [pid 5623] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5622] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5628] setpgid(0, 0 [pid 5627] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5625] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] <... futex resumed>) = 1 [pid 5623] <... futex resumed>) = 1 [pid 5622] <... futex resumed>) = 1 [pid 5620] <... futex resumed>) = 0 [pid 5619] <... futex resumed>) = 0 [pid 5618] <... futex resumed>) = 0 [pid 5628] <... setpgid resumed>) = 0 [pid 5627] <... mkdir resumed>) = 0 [pid 5625] <... futex resumed>) = 1 [pid 5624] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5621] <... futex resumed>) = 0 [pid 5619] exit_group(0 [pid 5618] exit_group(0 [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5625] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5621] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5620] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5619] <... exit_group resumed>) = ? [pid 5618] <... exit_group resumed>) = ? [pid 5624] sync( [pid 5621] <... futex resumed>) = 0 [pid 5620] <... futex resumed>) = 0 [pid 5620] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 78.515730][ T5627] loop3: detected capacity change from 0 to 1024 [pid 5621] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5623] +++ exited with 0 +++ [pid 5619] +++ exited with 0 +++ [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5057] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5622] +++ exited with 0 +++ [pid 5628] <... openat resumed>) = 3 [pid 5618] +++ exited with 0 +++ [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5618, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5057] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] write(3, "1000", 4 [pid 5627] <... mount resumed>) = 0 [pid 5625] <... mknod resumed>) = 0 [pid 5060] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5628] <... write resumed>) = 4 [pid 5627] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5625] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5628] close(3 [pid 5627] <... openat resumed>) = 3 [pid 5625] <... futex resumed>) = 1 [pid 5621] <... futex resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... openat resumed>) = 3 [pid 5628] <... close resumed>) = 0 [pid 5625] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5621] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5628] symlink("/dev/binderfs", "./binderfs" [pid 5625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] <... openat resumed>) = 3 [pid 5621] <... futex resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5625] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5621] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(3, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5627] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, [pid 5627] <... chdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5628] <... symlink resumed>) = 0 [pid 5627] ioctl(4, LOOP_CLR_FD [pid 5060] getdents64(3, [pid 5057] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5627] <... ioctl resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5627] close(4 [pid 5628] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5627] <... close resumed>) = 0 [pid 5628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5627] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5628] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5627] <... futex resumed>) = 1 [pid 5626] <... futex resumed>) = 0 [pid 5628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5627] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5626] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5628] <... mmap resumed>) = 0x7f923ecd1000 [pid 5627] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5626] <... futex resumed>) = 0 [pid 5628] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5627] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5626] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5628] <... mprotect resumed>) = 0 [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5625] <... open resumed>) = 4 [pid 5628] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5629 attached => {parent_tid=[5629]}, 88) = 5629 [pid 5625] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5627] <... mknod resumed>) = 0 [pid 5629] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], [pid 5625] <... futex resumed>) = 1 [pid 5621] <... futex resumed>) = 0 [pid 5629] <... rseq resumed>) = 0 [pid 5627] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] <... sync resumed>) = 0 [pid 5620] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5627] <... futex resumed>) = 1 [pid 5626] <... futex resumed>) = 0 [pid 5624] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5627] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5626] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] <... futex resumed>) = 0 [pid 5626] <... futex resumed>) = 0 [pid 5624] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5626] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5620] exit_group(0 [pid 5629] set_robust_list(0x7f923ecf19a0, 24 [pid 5628] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5625] sync( [pid 5624] <... futex resumed>) = ? [pid 5621] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5620] <... exit_group resumed>) = ? [pid 5057] <... umount2 resumed>) = 0 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5624] +++ exited with 0 +++ [pid 5621] <... futex resumed>) = 0 [pid 5620] +++ exited with 0 +++ [pid 5057] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] rt_sigprocmask(SIG_SETMASK, [], [pid 5628] <... futex resumed>) = 0 [pid 5627] <... open resumed>) = 4 [pid 5621] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... umount2 resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5629] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5628] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5627] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5620, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5057] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5629] memfd_create("syzkaller", 0 [pid 5627] <... futex resumed>) = 1 [pid 5626] <... futex resumed>) = 0 [pid 5060] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5629] <... memfd_create resumed>) = 3 [pid 5626] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... restart_syscall resumed>) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5627] sync( [pid 5626] <... futex resumed>) = 0 [pid 5625] <... sync resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5629] <... mmap resumed>) = 0x7f92368d1000 [pid 5627] <... sync resumed>) = 0 [pid 5626] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5625] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5625] <... futex resumed>) = 1 [pid 5621] <... futex resumed>) = 0 [pid 5059] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5627] <... futex resumed>) = 1 [pid 5626] <... futex resumed>) = 0 [pid 5625] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5621] exit_group(0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5626] exit_group(0 [pid 5625] <... futex resumed>) = ? [pid 5621] <... exit_group resumed>) = ? [pid 5060] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5627] <... futex resumed>) = ? [pid 5626] <... exit_group resumed>) = ? [pid 5625] +++ exited with 0 +++ [pid 5621] +++ exited with 0 +++ [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 3 [pid 5057] <... openat resumed>) = 4 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5056] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] newfstatat(3, "", [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5627] +++ exited with 0 +++ [pid 5626] +++ exited with 0 +++ [pid 5060] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] newfstatat(4, "", [pid 5056] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... openat resumed>) = 4 [pid 5059] getdents64(3, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] newfstatat(3, "", [pid 5059] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... restart_syscall resumed>) = 0 [pid 5056] getdents64(3, [pid 5060] newfstatat(4, "", [pid 5057] getdents64(4, [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5060] getdents64(4, [pid 5058] newfstatat(3, "", [pid 5057] getdents64(4, [pid 5629] <... write resumed>) = 524288 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5629] munmap(0x7f92368d1000, 138412032 [pid 5060] getdents64(4, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] close(4 [pid 5629] <... munmap resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(3, [pid 5057] <... close resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5060] close(4 [pid 5057] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... close resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... rmdir resumed>) = 0 [pid 5629] <... openat resumed>) = 4 [pid 5060] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5629] ioctl(4, LOOP_SET_FD, 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5056] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5060] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] close(4) = 0 [pid 5059] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5056] <... rmdir resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] newfstatat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] unlink("./46/binderfs") = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5057] unlink("./45/binderfs" [pid 5056] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] getdents64(3, [pid 5059] umount2("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... openat resumed>) = 4 [pid 5056] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5059] newfstatat(4, "", [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5629] <... ioctl resumed>) = 0 [pid 5060] close(3 [pid 5057] getdents64(3, [pid 5629] close(3 [pid 5060] <... close resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] unlink("./46/binderfs" [pid 5629] <... close resumed>) = 0 [pid 5060] rmdir("./46" [pid 5057] close(3 [pid 5629] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... unlink resumed>) = 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 5629] <... mkdir resumed>) = 0 [pid 5629] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] mkdir("./47", 0777 [pid 5057] rmdir("./45" [pid 5058] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] rmdir("./46" [pid 5058] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5057] mkdir("./46", 0777 [pid 5058] <... openat resumed>) = 4 [pid 5056] mkdir("./47", 0777 [pid 5059] getdents64(4, [pid 5058] newfstatat(4, "", [pid 5060] <... mkdir resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... mkdir resumed>) = 0 [pid 5058] getdents64(4, [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5058] getdents64(4, [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] close(4 [pid 5057] close(3 [pid 5059] getdents64(4, [pid 5058] <... close resumed>) = 0 [pid 5056] close(3 [pid 5057] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5059] close(4 [pid 5058] <... rmdir resumed>) = 0 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... close resumed>) = 0 [pid 5058] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] rmdir("./45/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... rmdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./46/binderfs", ./strace-static-x86_64: Process 5631 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5631 [pid 5631] set_robust_list(0x555555d616a0, 24 [pid 5059] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] unlink("./46/binderfs" [pid 5631] <... set_robust_list resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... unlink resumed>) = 0 [pid 5060] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5630 attached [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5630 [pid 5630] set_robust_list(0x555555d616a0, 24 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 78.704556][ T5629] loop0: detected capacity change from 0 to 1024 [pid 5631] chdir("./47" [pid 5059] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5058] getdents64(3, [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] unlink("./45/binderfs" [pid 5058] close(3 [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./46") = 0 [pid 5058] mkdir("./47", 0777 [pid 5059] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] <... mkdir resumed>) = 0 [pid 5631] <... chdir resumed>) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] <... set_robust_list resumed>) = 0 [pid 5060] close(3 [pid 5631] <... prctl resumed>) = 0 [pid 5630] chdir("./46" [pid 5060] <... close resumed>) = 0 [pid 5059] close(3 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5631] setpgid(0, 0 [pid 5630] <... chdir resumed>) = 0 [pid 5629] <... mount resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] <... close resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5631] <... setpgid resumed>) = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] rmdir("./45" [pid 5058] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5632 attached [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5630] <... prctl resumed>) = 0 [pid 5629] <... openat resumed>) = 3 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5632] set_robust_list(0x555555d616a0, 24 [pid 5631] <... openat resumed>) = 3 [pid 5630] setpgid(0, 0 [pid 5629] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5632 [pid 5059] mkdir("./46", 0777 [pid 5058] close(3 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5631] write(3, "1000", 4 [pid 5630] <... setpgid resumed>) = 0 [pid 5629] <... chdir resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5632] chdir("./47" [pid 5631] <... write resumed>) = 4 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5632] <... chdir resumed>) = 0 [pid 5631] close(3 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 5633 attached [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] <... close resumed>) = 0 [pid 5630] <... openat resumed>) = 3 [pid 5629] <... ioctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5633] set_robust_list(0x555555d616a0, 24 [pid 5632] <... prctl resumed>) = 0 [pid 5631] symlink("/dev/binderfs", "./binderfs" [pid 5630] write(3, "1000", 4 [pid 5629] close(4 [pid 5059] <... openat resumed>) = 3 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] setpgid(0, 0 [pid 5631] <... symlink resumed>) = 0 [pid 5630] <... write resumed>) = 4 [pid 5629] <... close resumed>) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5633 [pid 5633] chdir("./47" [pid 5632] <... setpgid resumed>) = 0 [pid 5631] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5629] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5633] <... chdir resumed>) = 0 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5631] <... futex resumed>) = 0 [pid 5630] close(3 [pid 5629] <... futex resumed>) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] <... openat resumed>) = 3 [pid 5631] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5630] <... close resumed>) = 0 [pid 5629] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5628] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... close resumed>) = 0 [pid 5633] <... prctl resumed>) = 0 [pid 5632] write(3, "1000", 4 [pid 5631] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5630] symlink("/dev/binderfs", "./binderfs" [pid 5629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5628] <... futex resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] setpgid(0, 0 [pid 5632] <... write resumed>) = 4 [pid 5629] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5631] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5633] <... setpgid resumed>) = 0 [pid 5631] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5634 attached [pid 5633] <... openat resumed>) = 3 [pid 5631] <... mmap resumed>) = 0x7f923ecd1000 [pid 5630] <... symlink resumed>) = 0 [pid 5629] <... mknod resumed>) = 0 [pid 5628] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5634] set_robust_list(0x555555d616a0, 24 [pid 5633] write(3, "1000", 4 [pid 5631] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5634 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] <... write resumed>) = 4 [pid 5632] close(3 [pid 5631] <... mprotect resumed>) = 0 [pid 5630] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5629] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] chdir("./46" [pid 5633] close(3 [pid 5632] <... close resumed>) = 0 [pid 5631] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5629] <... futex resumed>) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5634] <... chdir resumed>) = 0 [pid 5633] <... close resumed>) = 0 [pid 5632] symlink("/dev/binderfs", "./binderfs" [pid 5631] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5629] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5628] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] symlink("/dev/binderfs", "./binderfs" [pid 5631] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5632] <... symlink resumed>) = 0 [pid 5628] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5635 attached [pid 5634] <... prctl resumed>) = 0 [pid 5633] <... symlink resumed>) = 0 [pid 5632] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] <... futex resumed>) = 0 [pid 5628] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5634] setpgid(0, 0 [pid 5630] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5635] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5634] <... setpgid resumed>) = 0 [pid 5633] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5632] <... futex resumed>) = 0 [pid 5631] <... clone3 resumed> => {parent_tid=[5635]}, 88) = 5635 [pid 5630] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5635] <... rseq resumed>) = 0 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... futex resumed>) = 0 [pid 5632] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5631] rt_sigprocmask(SIG_SETMASK, [], [pid 5630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5629] <... open resumed>) = 4 [pid 5634] <... openat resumed>) = 3 [pid 5633] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5632] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5631] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5630] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5635] set_robust_list(0x7f923ecf19a0, 24 [pid 5633] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5631] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5634] write(3, "1000", 4 [pid 5633] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5631] <... futex resumed>) = 0 [pid 5630] <... mmap resumed>) = 0x7f923ecd1000 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5632] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5635] rt_sigprocmask(SIG_SETMASK, [], [pid 5634] <... write resumed>) = 4 [pid 5633] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5631] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5630] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5629] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5634] close(3 [pid 5633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5632] <... mmap resumed>) = 0x7f923ecd1000 [pid 5635] memfd_create("syzkaller", 0 [pid 5634] <... close resumed>) = 0 [pid 5633] <... mmap resumed>) = 0x7f923ecd1000 [pid 5632] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5630] <... mprotect resumed>) = 0 [pid 5629] <... futex resumed>) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs" [pid 5633] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5632] <... mprotect resumed>) = 0 [pid 5630] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5629] sync( [pid 5628] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] <... symlink resumed>) = 0 [pid 5633] <... mprotect resumed>) = 0 [pid 5628] <... futex resumed>) = 0 [pid 5628] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5634] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5633] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5635] <... memfd_create resumed>) = 3 [pid 5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5634] <... futex resumed>) = 0 [pid 5633] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5632] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5630] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5636 attached [pid 5635] <... mmap resumed>) = 0x7f92368d1000 [pid 5634] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5632] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5636] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5634] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5633] <... clone3 resumed> => {parent_tid=[5636]}, 88) = 5636 [pid 5630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5636] <... rseq resumed>) = 0 [pid 5634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5633] rt_sigprocmask(SIG_SETMASK, [], [pid 5632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5636] set_robust_list(0x7f923ecf19a0, 24 [pid 5634] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5633] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5638 attached ./strace-static-x86_64: Process 5637 attached [pid 5636] <... set_robust_list resumed>) = 0 [pid 5634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5633] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5636] rt_sigprocmask(SIG_SETMASK, [], [pid 5634] <... mmap resumed>) = 0x7f923ecd1000 [pid 5633] <... futex resumed>) = 0 [pid 5638] <... rseq resumed>) = 0 [pid 5636] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5634] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5633] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5638] set_robust_list(0x7f923ecf19a0, 24 [pid 5637] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5636] memfd_create("syzkaller", 0 [pid 5634] <... mprotect resumed>) = 0 [pid 5632] <... clone3 resumed> => {parent_tid=[5638]}, 88) = 5638 [pid 5630] <... clone3 resumed> => {parent_tid=[5637]}, 88) = 5637 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] <... rseq resumed>) = 0 [pid 5636] <... memfd_create resumed>) = 3 [pid 5634] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5632] rt_sigprocmask(SIG_SETMASK, [], [pid 5630] rt_sigprocmask(SIG_SETMASK, [], [pid 5638] rt_sigprocmask(SIG_SETMASK, [], [pid 5637] set_robust_list(0x7f923ecf19a0, 24 [pid 5636] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5634] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5632] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5630] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5638] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5637] <... set_robust_list resumed>) = 0 [pid 5636] <... mmap resumed>) = 0x7f92368d1000 [pid 5634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0}./strace-static-x86_64: Process 5639 attached [pid 5638] memfd_create("syzkaller", 0 [pid 5637] rt_sigprocmask(SIG_SETMASK, [], [pid 5636] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5635] <... write resumed>) = 524288 [pid 5632] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5629] <... sync resumed>) = 0 [pid 5637] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5639] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5638] <... memfd_create resumed>) = 3 [pid 5639] <... rseq resumed>) = 0 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5639] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5637] memfd_create("syzkaller", 0 [pid 5634] <... clone3 resumed> => {parent_tid=[5639]}, 88) = 5639 [pid 5632] <... futex resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5629] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] rt_sigprocmask(SIG_SETMASK, [], [pid 5632] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5629] <... futex resumed>) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [], [pid 5638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5637] <... memfd_create resumed>) = 3 [pid 5635] munmap(0x7f92368d1000, 138412032 [pid 5634] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5630] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5629] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5628] exit_group(0 [pid 5639] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5629] <... futex resumed>) = ? [pid 5628] <... exit_group resumed>) = ? [pid 5639] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... futex resumed>) = 0 [pid 5634] <... futex resumed>) = 1 [pid 5639] memfd_create("syzkaller", 0 [pid 5634] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5629] +++ exited with 0 +++ [pid 5637] <... mmap resumed>) = 0x7f92368d1000 [pid 5628] +++ exited with 0 +++ [pid 5635] <... munmap resumed>) = 0 [pid 5639] <... memfd_create resumed>) = 3 [pid 5638] <... write resumed>) = 524288 [pid 5637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5636] <... write resumed>) = 524288 [pid 5635] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5628, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5639] <... mmap resumed>) = 0x7f92368d1000 [pid 5638] munmap(0x7f92368d1000, 138412032 [pid 5635] <... openat resumed>) = 4 [pid 5055] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] ioctl(4, LOOP_SET_FD, 3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5638] <... munmap resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5636] munmap(0x7f92368d1000, 138412032 [pid 5638] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5636] <... munmap resumed>) = 0 [pid 5055] newfstatat(3, "", [pid 5638] <... openat resumed>) = 4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5638] ioctl(4, LOOP_SET_FD, 3 [pid 5636] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5055] getdents64(3, [pid 5636] <... openat resumed>) = 4 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5636] ioctl(4, LOOP_SET_FD, 3 [pid 5055] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] <... write resumed>) = 524288 [pid 5638] <... ioctl resumed>) = 0 [pid 5639] <... write resumed>) = 524288 [pid 5637] munmap(0x7f92368d1000, 138412032 [pid 5636] <... ioctl resumed>) = 0 [pid 5635] <... ioctl resumed>) = 0 [pid 5055] <... umount2 resumed>) = 0 [pid 5639] munmap(0x7f92368d1000, 138412032 [pid 5638] close(3) = 0 [pid 5639] <... munmap resumed>) = 0 [pid 5638] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5637] <... munmap resumed>) = 0 [pid 5055] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [ 78.893961][ T5635] loop1: detected capacity change from 0 to 1024 [ 78.907272][ T5638] loop5: detected capacity change from 0 to 1024 [ 78.917082][ T5636] loop3: detected capacity change from 0 to 1024 [pid 5639] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5638] <... mkdir resumed>) = 0 [pid 5637] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5635] close(3 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5639] ioctl(4, LOOP_SET_FD, 3 [pid 5637] <... openat resumed>) = 4 [pid 5635] <... close resumed>) = 0 [pid 5637] ioctl(4, LOOP_SET_FD, 3 [pid 5635] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5639] <... ioctl resumed>) = 0 [pid 5635] <... mkdir resumed>) = 0 [pid 5639] close(3) = 0 [pid 5639] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5638] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5637] <... ioctl resumed>) = 0 [pid 5636] close(3 [pid 5635] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5639] <... mkdir resumed>) = 0 [pid 5637] close(3 [pid 5636] <... close resumed>) = 0 [pid 5055] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5639] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5638] <... mount resumed>) = 0 [pid 5637] <... close resumed>) = 0 [pid 5636] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5637] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5636] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5638] <... openat resumed>) = 3 [pid 5637] <... mkdir resumed>) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5637] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5638] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] newfstatat(4, "", [pid 5638] <... chdir resumed>) = 0 [pid 5636] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5638] ioctl(4, LOOP_CLR_FD [pid 5055] getdents64(4, [pid 5638] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5638] close(4 [pid 5055] getdents64(4, [pid 5638] <... close resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5638] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] <... mount resumed>) = 0 [pid 5055] close(4 [pid 5638] <... futex resumed>) = 1 [pid 5635] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5632] <... futex resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5638] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... openat resumed>) = 3 [pid 5632] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5637] <... mount resumed>) = 0 [pid 5636] <... mount resumed>) = 0 [pid 5635] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5632] <... futex resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5639] <... mount resumed>) = 0 [pid 5638] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5637] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5636] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5632] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5639] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5637] <... openat resumed>) = 3 [pid 5639] <... openat resumed>) = 3 [pid 5637] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5636] <... openat resumed>) = 3 [pid 5635] <... chdir resumed>) = 0 [pid 5055] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5639] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5637] <... chdir resumed>) = 0 [pid 5636] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5639] <... chdir resumed>) = 0 [pid 5637] ioctl(4, LOOP_CLR_FD [pid 5639] ioctl(4, LOOP_CLR_FD [pid 5636] <... chdir resumed>) = 0 [pid 5637] <... ioctl resumed>) = 0 [pid 5636] ioctl(4, LOOP_CLR_FD [pid 5639] <... ioctl resumed>) = 0 [pid 5637] close(4 [pid 5639] close(4 [pid 5638] <... mknod resumed>) = 0 [pid 5637] <... close resumed>) = 0 [pid 5636] <... ioctl resumed>) = 0 [pid 5635] ioctl(4, LOOP_CLR_FD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5639] <... close resumed>) = 0 [pid 5638] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] close(4 [pid 5635] <... ioctl resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5638] <... futex resumed>) = 1 [pid 5637] <... futex resumed>) = 1 [pid 5636] <... close resumed>) = 0 [pid 5635] close(4 [pid 5632] <... futex resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 78.946617][ T5639] loop4: detected capacity change from 0 to 1024 [ 78.947924][ T5637] loop2: detected capacity change from 0 to 1024 [pid 5639] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] <... close resumed>) = 0 [pid 5632] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5055] unlink("./47/binderfs") = 0 [pid 5055] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5635] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5632] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] <... futex resumed>) = 1 [pid 5632] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5635] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] rmdir("./47") = 0 [pid 5630] <... futex resumed>) = 0 [pid 5630] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5639] <... futex resumed>) = 1 [pid 5636] <... futex resumed>) = 1 [pid 5634] <... futex resumed>) = 0 [pid 5633] <... futex resumed>) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5055] mkdir("./48", 0777 [pid 5639] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5637] <... mknod resumed>) = 0 [pid 5636] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5633] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] <... futex resumed>) = 0 [pid 5634] <... futex resumed>) = 0 [pid 5633] <... futex resumed>) = 0 [pid 5631] <... futex resumed>) = 1 [pid 5055] <... mkdir resumed>) = 0 [pid 5639] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5638] <... open resumed>) = 4 [pid 5637] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5635] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5634] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5633] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5631] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5638] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] <... futex resumed>) = 1 [pid 5636] <... mknod resumed>) = 0 [pid 5635] <... mknod resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5639] <... mknod resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5638] <... futex resumed>) = 1 [pid 5637] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5632] <... futex resumed>) = 0 [pid 5630] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... openat resumed>) = 3 [pid 5638] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5632] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] <... futex resumed>) = 0 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5639] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] <... futex resumed>) = 1 [pid 5632] <... futex resumed>) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5630] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5639] <... futex resumed>) = 1 [pid 5638] sync( [pid 5635] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] <... futex resumed>) = 0 [pid 5632] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5631] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5639] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5637] <... open resumed>) = 4 [pid 5636] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5634] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5634] <... futex resumed>) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5636] <... futex resumed>) = 1 [pid 5634] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5633] <... futex resumed>) = 0 [pid 5631] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5637] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... open resumed>) = 4 [pid 5633] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... close resumed>) = 0 [pid 5637] <... futex resumed>) = 1 [pid 5636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5633] <... futex resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5637] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5633] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5630] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5640 attached [pid 5637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5630] <... futex resumed>) = 0 [pid 5640] set_robust_list(0x555555d616a0, 24 [pid 5637] sync( [pid 5635] <... futex resumed>) = 1 [pid 5631] <... futex resumed>) = 0 [pid 5630] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5640] <... set_robust_list resumed>) = 0 [pid 5639] <... open resumed>) = 4 [pid 5635] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5631] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] <... open resumed>) = 4 [pid 5635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5631] <... futex resumed>) = 0 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5640 [pid 5640] chdir("./48" [pid 5639] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] sync( [pid 5631] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5640] <... chdir resumed>) = 0 [pid 5639] <... futex resumed>) = 1 [pid 5636] <... futex resumed>) = 1 [pid 5634] <... futex resumed>) = 0 [pid 5633] <... futex resumed>) = 0 [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5639] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5633] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5640] <... prctl resumed>) = 0 [pid 5639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5634] <... futex resumed>) = 0 [pid 5633] <... futex resumed>) = 0 [pid 5640] setpgid(0, 0 [pid 5639] sync( [pid 5636] sync( [pid 5634] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5633] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5640] <... setpgid resumed>) = 0 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5640] write(3, "1000", 4) = 4 [pid 5640] close(3) = 0 [pid 5640] symlink("/dev/binderfs", "./binderfs" [pid 5639] <... sync resumed>) = 0 [pid 5638] <... sync resumed>) = 0 [pid 5637] <... sync resumed>) = 0 [pid 5636] <... sync resumed>) = 0 [pid 5635] <... sync resumed>) = 0 [pid 5632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5639] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... futex resumed>) = 1 [pid 5637] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] <... futex resumed>) = 1 [pid 5631] <... futex resumed>) = 0 [pid 5640] <... symlink resumed>) = 0 [pid 5639] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5638] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] <... futex resumed>) = 1 [pid 5636] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5635] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] <... futex resumed>) = 0 [pid 5630] <... futex resumed>) = 0 [pid 5638] <... futex resumed>) = 0 [pid 5636] <... futex resumed>) = 1 [pid 5634] exit_group(0 [pid 5633] <... futex resumed>) = 0 [pid 5640] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] <... exit_group resumed>) = ? [pid 5630] exit_group(0 [pid 5640] <... futex resumed>) = 0 [pid 5633] exit_group(0 [pid 5630] <... exit_group resumed>) = ? [pid 5636] <... futex resumed>) = ? [pid 5640] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5636] +++ exited with 0 +++ [pid 5633] <... exit_group resumed>) = ? [pid 5631] exit_group(0 [pid 5640] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5640] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5639] <... futex resumed>) = ? [pid 5632] exit_group(0 [pid 5631] <... exit_group resumed>) = ? [pid 5640] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5639] +++ exited with 0 +++ [pid 5637] +++ exited with 0 +++ [pid 5634] +++ exited with 0 +++ [pid 5633] +++ exited with 0 +++ [pid 5630] +++ exited with 0 +++ [pid 5640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5638] <... futex resumed>) = ? [pid 5635] <... futex resumed>) = ? [pid 5632] <... exit_group resumed>) = ? [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5640] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5638] +++ exited with 0 +++ [pid 5635] +++ exited with 0 +++ [pid 5632] +++ exited with 0 +++ [pid 5631] +++ exited with 0 +++ [pid 5640] <... mprotect resumed>) = 0 [pid 5640] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5640] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5640] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5641 attached [pid 5060] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5060] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] <... rseq resumed>) = 0 [pid 5640] <... clone3 resumed> => {parent_tid=[5641]}, 88) = 5641 [pid 5060] newfstatat(3, "", [pid 5059] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5641] set_robust_list(0x7f923ecf19a0, 24 [pid 5640] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5641] <... set_robust_list resumed>) = 0 [pid 5640] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] getdents64(3, [pid 5059] newfstatat(3, "", [pid 5058] <... openat resumed>) = 3 [pid 5056] <... openat resumed>) = 3 [pid 5641] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] newfstatat(3, "", [pid 5056] newfstatat(3, "", [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5641] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5640] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] getdents64(3, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5641] memfd_create("syzkaller", 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] getdents64(3, [pid 5057] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5641] <... memfd_create resumed>) = 3 [pid 5640] <... futex resumed>) = 0 [pid 5059] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] getdents64(3, [pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5640] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5058] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... openat resumed>) = 3 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5641] <... mmap resumed>) = 0x7f92368d1000 [pid 5057] newfstatat(3, "", [pid 5056] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5058] <... umount2 resumed>) = 0 [pid 5059] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5059] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... openat resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(4, "", [pid 5058] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] newfstatat(4, "", [pid 5059] getdents64(4, [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(4, [pid 5059] close(4 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] <... close resumed>) = 0 [pid 5059] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5058] getdents64(4, [pid 5056] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] close(4 [pid 5641] <... write resumed>) = 524288 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5059] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] unlink("./46/binderfs" [pid 5058] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... openat resumed>) = 4 [pid 5058] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] getdents64(3, [pid 5058] unlink("./47/binderfs") = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(3, [pid 5059] close(3 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] close(3 [pid 5641] munmap(0x7f92368d1000, 138412032 [pid 5059] rmdir("./46" [pid 5058] <... close resumed>) = 0 [pid 5641] <... munmap resumed>) = 0 [pid 5056] newfstatat(4, "", [pid 5058] rmdir("./47" [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... rmdir resumed>) = 0 [pid 5641] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5059] mkdir("./47", 0777 [pid 5641] <... openat resumed>) = 4 [pid 5059] <... mkdir resumed>) = 0 [pid 5058] mkdir("./48", 0777 [pid 5641] ioctl(4, LOOP_SET_FD, 3 [pid 5060] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... mkdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5059] <... ioctl resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5059] close(3 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5060] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... close resumed>) = 0 [pid 5058] <... ioctl resumed>) = 0 [pid 5056] getdents64(4, [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] close(3 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... close resumed>) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5643 attached [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5642 ./strace-static-x86_64: Process 5642 attached [pid 5643] set_robust_list(0x555555d616a0, 24) = 0 [pid 5642] set_robust_list(0x555555d616a0, 24 [pid 5643] chdir("./48" [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5643 [pid 5643] <... chdir resumed>) = 0 [pid 5642] <... set_robust_list resumed>) = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5642] chdir("./47" [pid 5060] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(4, [pid 5643] <... prctl resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5643] setpgid(0, 0 [pid 5642] <... chdir resumed>) = 0 [pid 5060] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5643] <... setpgid resumed>) = 0 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] <... ioctl resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5057] newfstatat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] close(4 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] <... prctl resumed>) = 0 [pid 5641] close(3 [pid 5060] newfstatat(4, "", [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... close resumed>) = 0 [pid 5643] <... openat resumed>) = 3 [pid 5642] setpgid(0, 0 [pid 5641] <... close resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] umount2("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5643] write(3, "1000", 4 [pid 5642] <... setpgid resumed>) = 0 [pid 5641] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5060] getdents64(4, [pid 5643] <... write resumed>) = 4 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] close(3 [pid 5641] <... mkdir resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... rmdir resumed>) = 0 [pid 5643] <... close resumed>) = 0 [pid 5642] <... openat resumed>) = 3 [pid 5641] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] getdents64(4, [pid 5057] openat(AT_FDCWD, "./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5643] symlink("/dev/binderfs", "./binderfs" [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5643] <... symlink resumed>) = 0 [pid 5642] write(3, "1000", 4 [pid 5060] close(4 [pid 5057] <... openat resumed>) = 4 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5642] <... write resumed>) = 4 [pid 5060] <... close resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5056] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5643] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5642] close(3 [pid 5060] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] getdents64(4, [pid 5060] <... rmdir resumed>) = 0 [pid 5056] unlink("./47/binderfs" [pid 5060] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] getdents64(4, [pid 5056] <... unlink resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] getdents64(3, [pid 5060] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5057] close(4 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] close(3 [pid 5641] <... mount resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] rmdir("./46/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5056] <... close resumed>) = 0 [pid 5641] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5056] rmdir("./47" [pid 5642] <... close resumed>) = 0 [pid 5641] <... openat resumed>) = 3 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5643] <... futex resumed>) = 0 [pid 5642] symlink("/dev/binderfs", "./binderfs" [pid 5641] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] mkdir("./48", 0777 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5643] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5642] <... symlink resumed>) = 0 [pid 5641] <... chdir resumed>) = 0 [pid 5057] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5056] <... mkdir resumed>) = 0 [ 79.202372][ T5641] loop0: detected capacity change from 0 to 1024 [pid 5060] unlink("./47/binderfs" [pid 5643] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5642] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5641] ioctl(4, LOOP_CLR_FD [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5643] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5641] <... ioctl resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5643] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5642] <... futex resumed>) = 0 [pid 5641] close(4 [pid 5060] getdents64(3, [pid 5057] unlink("./46/binderfs" [pid 5643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5642] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5641] <... close resumed>) = 0 [pid 5643] <... mmap resumed>) = 0x7f923ecd1000 [pid 5642] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5641] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... unlink resumed>) = 0 [pid 5643] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5642] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5641] <... futex resumed>) = 1 [pid 5640] <... futex resumed>) = 0 [pid 5057] getdents64(3, [pid 5643] <... mprotect resumed>) = 0 [pid 5642] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5641] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5640] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5643] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5640] <... futex resumed>) = 0 [pid 5060] close(3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5643] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5642] <... mmap resumed>) = 0x7f923ecd1000 [pid 5641] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5640] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5643] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5642] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... close resumed>) = 0 [pid 5057] close(3 [pid 5056] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5644 attached [pid 5642] <... mprotect resumed>) = 0 [pid 5641] <... mknod resumed>) = 0 [pid 5060] rmdir("./47" [pid 5644] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5642] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5644] <... rseq resumed>) = 0 [pid 5643] <... clone3 resumed> => {parent_tid=[5644]}, 88) = 5644 [pid 5642] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5641] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] set_robust_list(0x7f923ecf19a0, 24 [pid 5643] rt_sigprocmask(SIG_SETMASK, [], [pid 5642] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5640] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5645 attached [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5641] <... futex resumed>) = 1 [pid 5640] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5645] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5644] rt_sigprocmask(SIG_SETMASK, [], [pid 5643] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5640] <... futex resumed>) = 0 [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5645] <... rseq resumed>) = 0 [pid 5644] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5643] <... futex resumed>) = 0 [pid 5642] <... clone3 resumed> => {parent_tid=[5645]}, 88) = 5645 [pid 5641] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5640] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5645] set_robust_list(0x7f923ecf19a0, 24 [pid 5644] memfd_create("syzkaller", 0 [pid 5643] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5642] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5645] <... set_robust_list resumed>) = 0 [pid 5644] <... memfd_create resumed>) = 3 [pid 5642] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] mkdir("./48", 0777 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], [pid 5644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5642] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5645] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5644] <... mmap resumed>) = 0x7f92368d1000 [pid 5642] <... futex resumed>) = 0 [pid 5057] rmdir("./46" [pid 5056] close(3 [pid 5060] <... mkdir resumed>) = 0 [pid 5642] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5645] memfd_create("syzkaller", 0 [pid 5644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5645] <... memfd_create resumed>) = 3 [pid 5641] <... open resumed>) = 4 [pid 5056] <... close resumed>) = 0 [pid 5645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5641] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... rmdir resumed>) = 0 [pid 5645] <... mmap resumed>) = 0x7f92368d1000 [pid 5641] <... futex resumed>) = 1 [pid 5640] <... futex resumed>) = 0 [pid 5640] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... openat resumed>) = 3 [pid 5057] mkdir("./47", 0777 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5641] sync( [pid 5640] <... futex resumed>) = 0 [pid 5640] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5646 attached [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5646 [pid 5060] close(3 [pid 5646] set_robust_list(0x555555d616a0, 24 [pid 5645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5060] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5646] chdir("./48" [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5647 attached [pid 5646] <... chdir resumed>) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5647 [pid 5057] close(3 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5644] <... write resumed>) = 524288 [pid 5057] <... close resumed>) = 0 [pid 5647] set_robust_list(0x555555d616a0, 24) = 0 [pid 5646] setpgid(0, 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] chdir("./48" [pid 5646] <... setpgid resumed>) = 0 [pid 5647] <... chdir resumed>) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5647] setpgid(0, 0./strace-static-x86_64: Process 5648 attached ) = 0 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] set_robust_list(0x555555d616a0, 24 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... openat resumed>) = 3 [pid 5641] <... sync resumed>) = 0 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... openat resumed>) = 3 [pid 5645] <... write resumed>) = 524288 [pid 5644] munmap(0x7f92368d1000, 138412032 [pid 5641] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] chdir("./47" [pid 5647] write(3, "1000", 4 [pid 5648] <... chdir resumed>) = 0 [pid 5647] <... write resumed>) = 4 [pid 5646] write(3, "1000", 4 [pid 5644] <... munmap resumed>) = 0 [pid 5641] <... futex resumed>) = 1 [pid 5640] <... futex resumed>) = 0 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5648 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] close(3 [pid 5646] <... write resumed>) = 4 [pid 5644] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5641] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5640] exit_group(0 [pid 5648] <... prctl resumed>) = 0 [pid 5647] <... close resumed>) = 0 [pid 5646] close(3 [pid 5645] munmap(0x7f92368d1000, 138412032 [pid 5644] <... openat resumed>) = 4 [pid 5641] <... futex resumed>) = ? [pid 5640] <... exit_group resumed>) = ? [pid 5648] setpgid(0, 0 [pid 5647] symlink("/dev/binderfs", "./binderfs" [pid 5646] <... close resumed>) = 0 [pid 5645] <... munmap resumed>) = 0 [pid 5644] ioctl(4, LOOP_SET_FD, 3 [pid 5641] +++ exited with 0 +++ [pid 5640] +++ exited with 0 +++ [pid 5648] <... setpgid resumed>) = 0 [pid 5647] <... symlink resumed>) = 0 [pid 5646] symlink("/dev/binderfs", "./binderfs" [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... symlink resumed>) = 0 [pid 5647] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5645] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5647] <... futex resumed>) = 0 [pid 5645] <... openat resumed>) = 4 [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5640, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5647] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5645] ioctl(4, LOOP_SET_FD, 3 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5648] <... openat resumed>) = 3 [pid 5646] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5648] write(3, "1000", 4 [pid 5646] <... futex resumed>) = 0 [pid 5648] <... write resumed>) = 4 [pid 5648] close(3 [pid 5646] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5648] <... close resumed>) = 0 [pid 5646] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5648] symlink("/dev/binderfs", "./binderfs" [pid 5646] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5647] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5648] <... symlink resumed>) = 0 [pid 5647] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5646] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5648] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5648] <... futex resumed>) = 0 [pid 5648] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5647] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5646] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5648] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5646] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5648] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5647] <... mmap resumed>) = 0x7f923ecd1000 [pid 5646] <... mprotect resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5648] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5647] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] <... openat resumed>) = 3 [pid 5648] <... mmap resumed>) = 0x7f923ecd1000 [pid 5647] <... mprotect resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5648] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5647] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5055] newfstatat(3, "", [pid 5648] <... mprotect resumed>) = 0 [pid 5647] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5646] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5647] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] getdents64(3, [pid 5644] <... ioctl resumed>) = 0 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5647] <... clone3 resumed> => {parent_tid=[5649]}, 88) = 5649 [pid 5644] close(3 [pid 5055] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5647] rt_sigprocmask(SIG_SETMASK, [], [pid 5644] <... close resumed>) = 0 [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5647] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5645] <... ioctl resumed>) = 0 [pid 5644] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777./strace-static-x86_64: Process 5649 attached [pid 5648] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5647] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5650 attached [pid 5649] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5648] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5647] <... futex resumed>) = 0 [pid 5645] close(3 [pid 5644] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5651 attached [pid 5650] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5649] <... rseq resumed>) = 0 [pid 5647] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5646] <... clone3 resumed> => {parent_tid=[5650]}, 88) = 5650 [pid 5645] <... close resumed>) = 0 [pid 5651] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5650] <... rseq resumed>) = 0 [pid 5649] set_robust_list(0x7f923ecf19a0, 24 [pid 5648] <... clone3 resumed> => {parent_tid=[5651]}, 88) = 5651 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], [pid 5645] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5651] <... rseq resumed>) = 0 [pid 5650] set_robust_list(0x7f923ecf19a0, 24 [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [], [pid 5646] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5645] <... mkdir resumed>) = 0 [pid 5644] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... umount2 resumed>) = 0 [pid 5651] set_robust_list(0x7f923ecf19a0, 24 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [], [pid 5648] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5646] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5650] rt_sigprocmask(SIG_SETMASK, [], [pid 5649] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5648] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] <... futex resumed>) = 0 [pid 5650] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5645] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5651] rt_sigprocmask(SIG_SETMASK, [], [pid 5650] memfd_create("syzkaller", 0 [pid 5649] memfd_create("syzkaller", 0 [pid 5648] <... futex resumed>) = 0 [ 79.348268][ T5644] loop3: detected capacity change from 0 to 1024 [ 79.357382][ T5645] loop4: detected capacity change from 0 to 1024 [pid 5646] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5650] <... memfd_create resumed>) = 3 [pid 5649] <... memfd_create resumed>) = 3 [pid 5648] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5645] <... mount resumed>) = 0 [pid 5644] <... mount resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5651] memfd_create("syzkaller", 0 [pid 5650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5644] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5651] <... memfd_create resumed>) = 3 [pid 5645] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5650] <... mmap resumed>) = 0x7f92368d1000 [pid 5649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5645] <... openat resumed>) = 3 [pid 5644] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5651] <... mmap resumed>) = 0x7f92368d1000 [pid 5650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5649] <... mmap resumed>) = 0x7f92368d1000 [pid 5645] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5644] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5645] <... chdir resumed>) = 0 [pid 5645] ioctl(4, LOOP_CLR_FD) = 0 [pid 5645] close(4 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5645] <... close resumed>) = 0 [pid 5644] <... chdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5645] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] ioctl(4, LOOP_CLR_FD [pid 5055] <... openat resumed>) = 4 [pid 5645] <... futex resumed>) = 1 [pid 5644] <... ioctl resumed>) = 0 [pid 5642] <... futex resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5645] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5644] close(4 [pid 5642] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5645] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5644] <... close resumed>) = 0 [pid 5642] <... futex resumed>) = 0 [pid 5055] getdents64(4, [pid 5642] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5644] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(4, [pid 5644] <... futex resumed>) = 1 [pid 5644] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] close(4) = 0 [pid 5643] <... futex resumed>) = 0 [pid 5055] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5643] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5644] <... futex resumed>) = 0 [pid 5643] <... futex resumed>) = 1 [pid 5645] <... mknod resumed>) = 0 [pid 5644] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5643] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] <... write resumed>) = 524288 [pid 5650] <... write resumed>) = 524288 [pid 5645] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] <... mknod resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5645] <... futex resumed>) = 1 [pid 5642] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5642] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5645] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5644] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5642] <... futex resumed>) = 0 [pid 5055] unlink("./48/binderfs" [pid 5650] munmap(0x7f92368d1000, 138412032 [pid 5649] <... write resumed>) = 524288 [pid 5644] <... futex resumed>) = 1 [pid 5643] <... futex resumed>) = 0 [pid 5642] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... unlink resumed>) = 0 [pid 5650] <... munmap resumed>) = 0 [pid 5645] <... open resumed>) = 4 [pid 5644] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5643] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5644] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5643] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5651] munmap(0x7f92368d1000, 138412032 [pid 5650] <... openat resumed>) = 4 [pid 5649] munmap(0x7f92368d1000, 138412032 [pid 5644] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5643] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5651] <... munmap resumed>) = 0 [pid 5650] ioctl(4, LOOP_SET_FD, 3 [pid 5649] <... munmap resumed>) = 0 [pid 5645] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] close(3 [pid 5651] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5649] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5645] <... futex resumed>) = 1 [pid 5649] <... openat resumed>) = 4 [pid 5645] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] <... close resumed>) = 0 [pid 5651] <... openat resumed>) = 4 [pid 5642] <... futex resumed>) = 0 [pid 5055] rmdir("./48" [pid 5651] ioctl(4, LOOP_SET_FD, 3 [pid 5649] ioctl(4, LOOP_SET_FD, 3 [pid 5642] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... rmdir resumed>) = 0 [pid 5645] <... futex resumed>) = 0 [pid 5642] <... futex resumed>) = 1 [pid 5055] mkdir("./49", 0777 [pid 5645] sync( [pid 5644] <... open resumed>) = 4 [pid 5642] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5644] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5644] <... futex resumed>) = 1 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5644] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] close(3) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] <... futex resumed>) = 0 [pid 5643] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5652 [pid 5644] <... futex resumed>) = 0 [pid 5643] <... futex resumed>) = 1 [pid 5644] sync( [pid 5643] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5650] <... ioctl resumed>) = 0 [pid 5650] close(3) = 0 [pid 5650] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5650] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, ""./strace-static-x86_64: Process 5652 attached [pid 5652] set_robust_list(0x555555d616a0, 24) = 0 [pid 5651] <... ioctl resumed>) = 0 [pid 5649] <... ioctl resumed>) = 0 [pid 5652] chdir("./49" [pid 5651] close(3 [pid 5649] close(3 [pid 5652] <... chdir resumed>) = 0 [pid 5651] <... close resumed>) = 0 [pid 5649] <... close resumed>) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5649] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5651] <... mkdir resumed>) = 0 [pid 5652] <... prctl resumed>) = 0 [ 79.477709][ T5650] loop1: detected capacity change from 0 to 1024 [ 79.487733][ T5649] loop5: detected capacity change from 0 to 1024 [ 79.495369][ T5651] loop2: detected capacity change from 0 to 1024 [pid 5651] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5649] <... mkdir resumed>) = 0 [pid 5650] <... mount resumed>) = 0 [pid 5642] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5652] setpgid(0, 0 [pid 5649] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5652] <... setpgid resumed>) = 0 [pid 5650] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] <... openat resumed>) = 3 [pid 5652] <... openat resumed>) = 3 [pid 5652] write(3, "1000", 4 [pid 5651] <... mount resumed>) = 0 [pid 5650] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5652] <... write resumed>) = 4 [pid 5643] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5652] close(3 [pid 5651] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5650] <... chdir resumed>) = 0 [pid 5652] <... close resumed>) = 0 [pid 5651] <... openat resumed>) = 3 [pid 5650] ioctl(4, LOOP_CLR_FD [pid 5649] <... mount resumed>) = 0 [pid 5652] symlink("/dev/binderfs", "./binderfs" [pid 5651] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5649] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5651] <... chdir resumed>) = 0 [pid 5650] <... ioctl resumed>) = 0 [pid 5649] <... openat resumed>) = 3 [pid 5651] ioctl(4, LOOP_CLR_FD [pid 5650] close(4 [pid 5649] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5651] <... ioctl resumed>) = 0 [pid 5650] <... close resumed>) = 0 [pid 5649] <... chdir resumed>) = 0 [pid 5652] <... symlink resumed>) = 0 [pid 5651] close(4 [pid 5650] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5649] ioctl(4, LOOP_CLR_FD [pid 5645] <... sync resumed>) = 0 [pid 5644] <... sync resumed>) = 0 [pid 5652] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... close resumed>) = 0 [pid 5650] <... futex resumed>) = 1 [pid 5649] <... ioctl resumed>) = 0 [pid 5646] <... futex resumed>) = 0 [pid 5645] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] <... futex resumed>) = 0 [pid 5651] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] close(4 [pid 5646] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5645] <... futex resumed>) = 0 [pid 5644] <... futex resumed>) = 0 [pid 5643] exit_group(0 [pid 5642] exit_group(0 [pid 5652] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5646] <... futex resumed>) = 0 [pid 5643] <... exit_group resumed>) = ? [pid 5642] <... exit_group resumed>) = ? [pid 5652] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5651] <... futex resumed>) = 1 [pid 5650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5649] <... close resumed>) = 0 [pid 5648] <... futex resumed>) = 0 [pid 5646] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5645] +++ exited with 0 +++ [pid 5642] +++ exited with 0 +++ [pid 5652] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5651] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5650] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5649] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5644] +++ exited with 0 +++ [pid 5643] +++ exited with 0 +++ [pid 5652] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5649] <... futex resumed>) = 1 [pid 5647] <... futex resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5649] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5648] <... futex resumed>) = 0 [pid 5647] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... mmap resumed>) = 0x7f923ecd1000 [pid 5647] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5648] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5647] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5652] <... mprotect resumed>) = 0 [pid 5649] <... mknod resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5652] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5059] newfstatat(3, "", [pid 5652] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5649] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5652] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5651] <... mknod resumed>) = 0 [pid 5649] <... futex resumed>) = 1 [pid 5647] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5653 attached [pid 5650] <... mknod resumed>) = 0 [pid 5649] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5647] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5653] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5652] <... clone3 resumed> => {parent_tid=[5653]}, 88) = 5653 [pid 5647] <... futex resumed>) = 0 [pid 5059] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5653] <... rseq resumed>) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [], [pid 5647] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5653] set_robust_list(0x7f923ecf19a0, 24 [pid 5652] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5650] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5650] <... futex resumed>) = 1 [pid 5649] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5058] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(3, [pid 5653] <... set_robust_list resumed>) = 0 [pid 5652] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5651] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5646] <... futex resumed>) = 0 [pid 5646] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... futex resumed>) = 1 [pid 5646] <... futex resumed>) = 1 [pid 5651] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5650] <... futex resumed>) = 0 [pid 5648] <... futex resumed>) = 0 [pid 5646] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5650] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5648] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5653] rt_sigprocmask(SIG_SETMASK, [], [pid 5652] <... futex resumed>) = 0 [pid 5651] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5648] <... futex resumed>) = 0 [pid 5058] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5653] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5652] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5653] memfd_create("syzkaller", 0) = 3 [pid 5648] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5650] <... open resumed>) = 4 [pid 5649] <... open resumed>) = 4 [pid 5651] <... open resumed>) = 4 [pid 5650] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5646] <... futex resumed>) = 0 [pid 5646] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5059] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5058] <... umount2 resumed>) = 0 [pid 5653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5651] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] sync( [pid 5649] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] <... futex resumed>) = 1 [pid 5649] <... futex resumed>) = 1 [pid 5648] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5651] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5059] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5648] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5647] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5653] <... write resumed>) = 524288 [pid 5651] sync( [pid 5647] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(4, "", [pid 5649] <... futex resumed>) = 0 [pid 5647] <... futex resumed>) = 1 [pid 5649] sync( [pid 5647] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5059] close(4 [pid 5058] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... close resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5653] munmap(0x7f92368d1000, 138412032 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5653] <... munmap resumed>) = 0 [pid 5059] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5650] <... sync resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 4 [pid 5653] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5651] <... sync resumed>) = 0 [pid 5650] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5058] newfstatat(4, "", [pid 5653] <... openat resumed>) = 4 [pid 5651] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5650] <... futex resumed>) = 1 [pid 5646] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5653] ioctl(4, LOOP_SET_FD, 3 [pid 5646] exit_group(0 [pid 5059] unlink("./47/binderfs" [pid 5058] getdents64(4, [pid 5646] <... exit_group resumed>) = ? [pid 5059] <... unlink resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4) = 0 [pid 5058] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5651] <... futex resumed>) = 1 [pid 5058] <... rmdir resumed>) = 0 [pid 5059] close(3) = 0 [pid 5059] rmdir("./47") = 0 [pid 5058] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5650] +++ exited with 0 +++ [pid 5646] +++ exited with 0 +++ [pid 5651] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] <... sync resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5649] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] <... futex resumed>) = 0 [pid 5059] mkdir("./48", 0777 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] unlink("./48/binderfs" [pid 5649] <... futex resumed>) = 1 [pid 5648] exit_group(0 [pid 5647] <... futex resumed>) = 0 [pid 5058] <... unlink resumed>) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5651] <... futex resumed>) = ? [pid 5649] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] <... exit_group resumed>) = ? [pid 5647] exit_group(0 [pid 5059] <... mkdir resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5653] <... ioctl resumed>) = 0 [pid 5651] +++ exited with 0 +++ [pid 5647] <... exit_group resumed>) = ? [pid 5058] getdents64(3, [pid 5653] close(3 [pid 5648] +++ exited with 0 +++ [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5653] <... close resumed>) = 0 [pid 5649] <... futex resumed>) = ? [pid 5058] close(3 [pid 5056] newfstatat(3, "", [pid 5653] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5059] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5653] <... mkdir resumed>) = 0 [pid 5649] +++ exited with 0 +++ [pid 5647] +++ exited with 0 +++ [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5648, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5058] rmdir("./48" [pid 5057] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] getdents64(3, [pid 5653] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... rmdir resumed>) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] restart_syscall(<... resuming interrupted clone ...> [pid 5059] close(3 [pid 5057] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... restart_syscall resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5058] mkdir("./49", 0777 [pid 5057] <... openat resumed>) = 3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] <... mkdir resumed>) = 0 [pid 5060] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] newfstatat(3, "", [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5654 attached [pid 5654] set_robust_list(0x555555d616a0, 24 [pid 5653] <... mount resumed>) = 0 [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5654] chdir("./48" [pid 5653] <... openat resumed>) = 3 [pid 5654] <... chdir resumed>) = 0 [pid 5653] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] <... chdir resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5654 [pid 5654] <... prctl resumed>) = 0 [pid 5653] ioctl(4, LOOP_CLR_FD [pid 5654] setpgid(0, 0 [pid 5653] <... ioctl resumed>) = 0 [pid 5654] <... setpgid resumed>) = 0 [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] close(4) = 0 [pid 5060] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] getdents64(3, [pid 5654] <... openat resumed>) = 3 [pid 5653] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] write(3, "1000", 4 [pid 5653] <... futex resumed>) = 1 [pid 5652] <... futex resumed>) = 0 [pid 5654] <... write resumed>) = 4 [pid 5653] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5652] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] close(3 [pid 5653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5652] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5654] <... close resumed>) = 0 [pid 5653] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5652] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] newfstatat(3, "", [pid 5057] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] symlink("/dev/binderfs", "./binderfs" [pid 5653] <... mknod resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5654] <... symlink resumed>) = 0 [ 79.652541][ T5653] loop0: detected capacity change from 0 to 1024 [pid 5653] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5058] <... openat resumed>) = 3 [pid 5653] <... futex resumed>) = 1 [pid 5652] <... futex resumed>) = 0 [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5056] <... umount2 resumed>) = 0 [pid 5652] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5652] <... futex resumed>) = 0 [pid 5058] close(3 [pid 5653] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5652] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... futex resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5056] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... umount2 resumed>) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5060] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5056] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ./strace-static-x86_64: Process 5655 attached [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5655 [pid 5655] set_robust_list(0x555555d616a0, 24) = 0 [pid 5654] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5653] <... open resumed>) = 4 [pid 5060] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5655] chdir("./49" [pid 5654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5655] <... chdir resumed>) = 0 [pid 5654] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5653] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5654] <... mprotect resumed>) = 0 [pid 5653] <... futex resumed>) = 1 [pid 5060] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... umount2 resumed>) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5654] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5653] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5652] <... futex resumed>) = 0 [pid 5060] <... openat resumed>) = 4 [pid 5057] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... openat resumed>) = 4 [pid 5655] <... prctl resumed>) = 0 [pid 5654] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5652] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(4, "", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] newfstatat(4, "", [pid 5655] setpgid(0, 0 [pid 5654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5653] <... futex resumed>) = 0 [pid 5652] <... futex resumed>) = 1 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] newfstatat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5656 attached [pid 5655] <... setpgid resumed>) = 0 [pid 5653] sync( [pid 5652] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] getdents64(4, [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] getdents64(4, [pid 5656] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5654] <... clone3 resumed> => {parent_tid=[5656]}, 88) = 5656 [pid 5057] umount2("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5656] <... rseq resumed>) = 0 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5654] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] getdents64(4, [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] getdents64(4, [pid 5656] set_robust_list(0x7f923ecf19a0, 24 [pid 5655] <... openat resumed>) = 3 [pid 5654] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] openat(AT_FDCWD, "./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5655] write(3, "1000", 4 [pid 5654] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] close(4 [pid 5057] <... openat resumed>) = 4 [pid 5056] close(4 [pid 5656] rt_sigprocmask(SIG_SETMASK, [], [pid 5654] <... futex resumed>) = 0 [pid 5060] <... close resumed>) = 0 [pid 5057] newfstatat(4, "", [pid 5656] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5654] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... close resumed>) = 0 [pid 5656] memfd_create("syzkaller", 0 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5655] <... write resumed>) = 4 [pid 5060] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5056] <... rmdir resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] getdents64(4, [pid 5656] <... memfd_create resumed>) = 3 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5656] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5655] close(3 [pid 5653] <... sync resumed>) = 0 [pid 5060] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5057] close(4 [pid 5056] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5656] <... mmap resumed>) = 0x7f92368d1000 [pid 5655] <... close resumed>) = 0 [pid 5653] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] <... close resumed>) = 0 [pid 5656] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5655] symlink("/dev/binderfs", "./binderfs" [pid 5653] <... futex resumed>) = 1 [pid 5060] unlink("./48/binderfs" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] rmdir("./47/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5655] <... symlink resumed>) = 0 [pid 5653] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5652] <... futex resumed>) = 0 [pid 5060] <... unlink resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5652] exit_group(0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5655] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5653] <... futex resumed>) = ? [pid 5652] <... exit_group resumed>) = ? [pid 5057] <... rmdir resumed>) = 0 [pid 5056] unlink("./48/binderfs" [pid 5655] <... futex resumed>) = 0 [pid 5653] +++ exited with 0 +++ [pid 5652] +++ exited with 0 +++ [pid 5060] getdents64(3, [pid 5057] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... unlink resumed>) = 0 [pid 5655] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] close(3 [pid 5655] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5057] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5655] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] <... close resumed>) = 0 [pid 5655] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] rmdir("./48" [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5057] unlink("./47/binderfs" [pid 5656] <... write resumed>) = 524288 [pid 5655] <... mmap resumed>) = 0x7f923ecd1000 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... unlink resumed>) = 0 [pid 5655] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] mkdir("./49", 0777 [pid 5057] getdents64(3, [pid 5056] getdents64(3, [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5655] <... mprotect resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] close(3 [pid 5055] restart_syscall(<... resuming interrupted clone ...> [pid 5057] <... close resumed>) = 0 [pid 5056] close(3 [pid 5055] <... restart_syscall resumed>) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] rmdir("./47" [pid 5056] <... close resumed>) = 0 [pid 5656] munmap(0x7f92368d1000, 138412032) = 0 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5057] <... rmdir resumed>) = 0 [pid 5056] rmdir("./48" [pid 5055] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5655] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... openat resumed>) = 3 [pid 5057] mkdir("./48", 0777 [pid 5655] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5056] <... rmdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5657 attached [pid 5656] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5060] close(3 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] mkdir("./49", 0777 [pid 5055] <... openat resumed>) = 3 [pid 5657] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5656] <... openat resumed>) = 4 [pid 5655] <... clone3 resumed> => {parent_tid=[5657]}, 88) = 5657 [pid 5060] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] newfstatat(3, "", [pid 5657] <... rseq resumed>) = 0 [pid 5656] ioctl(4, LOOP_SET_FD, 3 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... mkdir resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5657] set_robust_list(0x7f923ecf19a0, 24 [pid 5655] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5655] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] getdents64(3, [pid 5655] <... futex resumed>) = 0 [pid 5655] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5055] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5658 attached [pid 5657] <... set_robust_list resumed>) = 0 [pid 5057] close(3 [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] <... umount2 resumed>) = 0 [pid 5658] set_robust_list(0x555555d616a0, 24 [pid 5657] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5658 [pid 5057] <... close resumed>) = 0 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5056] <... openat resumed>) = 3 [pid 5055] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] chdir("./49" [pid 5657] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5658] <... chdir resumed>) = 0 [pid 5657] memfd_create("syzkaller", 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5055] newfstatat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5657] <... memfd_create resumed>) = 3 [pid 5056] close(3 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5656] <... ioctl resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5658] <... prctl resumed>) = 0 [pid 5055] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5658] setpgid(0, 0 [pid 5657] <... mmap resumed>) = 0x7f92368d1000 [pid 5656] close(3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5658] <... setpgid resumed>) = 0 [pid 5656] <... close resumed>) = 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5656] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5658] <... openat resumed>) = 3 [pid 5656] <... mkdir resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5659 attached [pid 5658] write(3, "1000", 4 [pid 5656] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5659] set_robust_list(0x555555d616a0, 24 [pid 5658] <... write resumed>) = 4 [pid 5657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5659 [pid 5055] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5660 attached [pid 5658] close(3 [pid 5055] newfstatat(4, "", [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5660 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5660] set_robust_list(0x555555d616a0, 24 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5658] <... close resumed>) = 0 [pid 5055] getdents64(4, [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] chdir("./49" [pid 5658] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5660] chdir("./48" [pid 5659] <... chdir resumed>) = 0 [pid 5658] <... symlink resumed>) = 0 [pid 5055] getdents64(4, [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5659] <... prctl resumed>) = 0 [ 79.839230][ T5656] loop4: detected capacity change from 0 to 1024 [pid 5055] close(4 [pid 5659] setpgid(0, 0 [pid 5660] <... chdir resumed>) = 0 [pid 5659] <... setpgid resumed>) = 0 [pid 5658] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5657] <... write resumed>) = 524288 [pid 5656] <... mount resumed>) = 0 [pid 5055] <... close resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] <... futex resumed>) = 0 [pid 5657] munmap(0x7f92368d1000, 138412032 [pid 5656] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] rmdir("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5660] <... prctl resumed>) = 0 [pid 5659] <... openat resumed>) = 3 [pid 5658] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5657] <... munmap resumed>) = 0 [pid 5656] <... openat resumed>) = 3 [pid 5055] <... rmdir resumed>) = 0 [pid 5660] setpgid(0, 0 [pid 5659] write(3, "1000", 4 [pid 5658] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5656] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5660] <... setpgid resumed>) = 0 [pid 5659] <... write resumed>) = 4 [pid 5658] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5657] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5656] <... chdir resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] close(3 [pid 5658] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5656] ioctl(4, LOOP_CLR_FD [pid 5055] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5660] <... openat resumed>) = 3 [pid 5659] <... close resumed>) = 0 [pid 5658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5657] <... openat resumed>) = 4 [pid 5656] <... ioctl resumed>) = 0 [pid 5660] write(3, "1000", 4 [pid 5659] symlink("/dev/binderfs", "./binderfs" [pid 5658] <... mmap resumed>) = 0x7f923ecd1000 [pid 5657] ioctl(4, LOOP_SET_FD, 3 [pid 5656] close(4 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5660] <... write resumed>) = 4 [pid 5659] <... symlink resumed>) = 0 [pid 5658] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5656] <... close resumed>) = 0 [pid 5055] unlink("./49/binderfs" [pid 5660] close(3 [pid 5658] <... mprotect resumed>) = 0 [pid 5656] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] <... close resumed>) = 0 [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5656] <... futex resumed>) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5660] symlink("/dev/binderfs", "./binderfs" [pid 5658] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5656] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5654] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] <... symlink resumed>) = 0 [pid 5658] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5654] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5661 attached [pid 5660] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5654] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5661] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5660] <... futex resumed>) = 0 [pid 5658] <... clone3 resumed> => {parent_tid=[5661]}, 88) = 5661 [pid 5656] <... mknod resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5661] <... rseq resumed>) = 0 [pid 5660] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5658] rt_sigprocmask(SIG_SETMASK, [], [pid 5656] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5661] set_robust_list(0x7f923ecf19a0, 24 [pid 5660] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5659] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5658] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5657] <... ioctl resumed>) = 0 [pid 5656] <... futex resumed>) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5055] getdents64(3, [pid 5661] <... set_robust_list resumed>) = 0 [pid 5660] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5659] <... futex resumed>) = 0 [pid 5658] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5654] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5661] rt_sigprocmask(SIG_SETMASK, [], [pid 5660] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5659] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5658] <... futex resumed>) = 0 [pid 5657] close(3 [pid 5656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5654] <... futex resumed>) = 0 [pid 5055] close(3 [pid 5661] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5659] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5658] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5657] <... close resumed>) = 0 [pid 5656] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5654] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... close resumed>) = 0 [pid 5661] memfd_create("syzkaller", 0 [pid 5660] <... mmap resumed>) = 0x7f923ecd1000 [pid 5659] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5657] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5055] rmdir("./49" [pid 5661] <... memfd_create resumed>) = 3 [pid 5660] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5659] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5657] <... mkdir resumed>) = 0 [pid 5656] <... open resumed>) = 4 [pid 5661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5660] <... mprotect resumed>) = 0 [pid 5659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5657] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5055] <... rmdir resumed>) = 0 [pid 5661] <... mmap resumed>) = 0x7f92368d1000 [pid 5660] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5659] <... mmap resumed>) = 0x7f923ecd1000 [pid 5055] mkdir("./50", 0777 [pid 5659] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5656] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5659] <... mprotect resumed>) = 0 [pid 5656] <... futex resumed>) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5660] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5656] sync( [pid 5654] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5662 attached [pid 5659] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5654] <... futex resumed>) = 0 [pid 5662] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5660] <... clone3 resumed> => {parent_tid=[5662]}, 88) = 5662 [pid 5659] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5657] <... mount resumed>) = 0 [pid 5654] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5663 attached [pid 5662] <... rseq resumed>) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [], [pid 5657] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... openat resumed>) = 3 [pid 5663] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5659] <... clone3 resumed> => {parent_tid=[5663]}, 88) = 5663 [pid 5657] <... openat resumed>) = 3 [pid 5055] ioctl(3, LOOP_CLR_FD [pid 5663] <... rseq resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], [pid 5657] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5663] set_robust_list(0x7f923ecf19a0, 24 [pid 5662] set_robust_list(0x7f923ecf19a0, 24 [pid 5660] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5659] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5657] <... chdir resumed>) = 0 [pid 5055] close(3 [pid 5663] <... set_robust_list resumed>) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5660] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5659] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5657] ioctl(4, LOOP_CLR_FD [pid 5055] <... close resumed>) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [], [pid 5659] <... futex resumed>) = 0 [pid 5657] <... ioctl resumed>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5659] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5657] close(4) = 0 [pid 5657] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5655] <... futex resumed>) = 0 [pid 5655] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5655] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5664 attached [pid 5663] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5661] <... write resumed>) = 524288 [pid 5657] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5663] memfd_create("syzkaller", 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], [pid 5660] <... futex resumed>) = 0 [pid 5663] <... memfd_create resumed>) = 3 [pid 5662] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5660] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5664 [pid 5664] set_robust_list(0x555555d616a0, 24 [pid 5663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5662] memfd_create("syzkaller", 0 [pid 5664] <... set_robust_list resumed>) = 0 [pid 5663] <... mmap resumed>) = 0x7f92368d1000 [ 79.915596][ T5657] loop3: detected capacity change from 0 to 1024 [pid 5662] <... memfd_create resumed>) = 3 [pid 5664] chdir("./50" [pid 5663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5661] munmap(0x7f92368d1000, 138412032 [pid 5657] <... mknod resumed>) = 0 [pid 5662] <... mmap resumed>) = 0x7f92368d1000 [pid 5664] <... chdir resumed>) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] <... munmap resumed>) = 0 [pid 5664] setpgid(0, 0) = 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5657] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... openat resumed>) = 3 [pid 5657] <... futex resumed>) = 1 [pid 5655] <... futex resumed>) = 0 [pid 5662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5661] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5656] <... sync resumed>) = 0 [pid 5655] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] write(3, "1000", 4 [pid 5661] <... openat resumed>) = 4 [pid 5657] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5656] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5655] <... futex resumed>) = 0 [pid 5664] <... write resumed>) = 4 [pid 5655] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5664] close(3 [pid 5661] ioctl(4, LOOP_SET_FD, 3 [pid 5657] <... open resumed>) = 4 [pid 5664] <... close resumed>) = 0 [pid 5657] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5656] <... futex resumed>) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5664] symlink("/dev/binderfs", "./binderfs" [pid 5661] <... ioctl resumed>) = 0 [pid 5657] <... futex resumed>) = 1 [pid 5656] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5655] <... futex resumed>) = 0 [pid 5654] exit_group(0 [pid 5655] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5655] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5664] <... symlink resumed>) = 0 [pid 5664] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] <... write resumed>) = 524288 [pid 5657] sync( [pid 5664] <... futex resumed>) = 0 [pid 5654] <... exit_group resumed>) = ? [pid 5664] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5664] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5663] <... write resumed>) = 524288 [pid 5656] <... futex resumed>) = ? [pid 5664] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5664] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5664] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5664] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5656] +++ exited with 0 +++ [pid 5654] +++ exited with 0 +++ [pid 5662] munmap(0x7f92368d1000, 138412032./strace-static-x86_64: Process 5665 attached [pid 5664] <... clone3 resumed> => {parent_tid=[5665]}, 88) = 5665 [pid 5665] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5664] rt_sigprocmask(SIG_SETMASK, [], [pid 5665] <... rseq resumed>) = 0 [pid 5664] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5665] set_robust_list(0x7f923ecf19a0, 24 [pid 5664] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] <... munmap resumed>) = 0 [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] <... futex resumed>) = 0 [pid 5665] rt_sigprocmask(SIG_SETMASK, [], [pid 5664] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5663] munmap(0x7f92368d1000, 138412032 [pid 5662] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5059] restart_syscall(<... resuming interrupted clone ...> [pid 5665] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5663] <... munmap resumed>) = 0 [pid 5662] <... openat resumed>) = 4 [pid 5059] <... restart_syscall resumed>) = 0 [pid 5665] memfd_create("syzkaller", 0 [pid 5663] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5662] ioctl(4, LOOP_SET_FD, 3 [pid 5665] <... memfd_create resumed>) = 3 [pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5663] <... openat resumed>) = 4 [pid 5662] <... ioctl resumed>) = 0 [pid 5661] close(3 [pid 5657] <... sync resumed>) = 0 [pid 5059] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] ioctl(4, LOOP_SET_FD, 3 [pid 5661] <... close resumed>) = 0 [pid 5657] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5661] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5657] <... futex resumed>) = 1 [pid 5655] <... futex resumed>) = 0 [pid 5657] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5655] exit_group(0 [pid 5657] <... futex resumed>) = ? [pid 5655] <... exit_group resumed>) = ? [pid 5657] +++ exited with 0 +++ [pid 5655] +++ exited with 0 +++ [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5058] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] <... ioctl resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5661] <... mkdir resumed>) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5058] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5665] <... write resumed>) = 524288 [pid 5663] close(3 [pid 5662] close(3 [pid 5661] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5059] newfstatat(3, "", [pid 5665] munmap(0x7f92368d1000, 138412032 [pid 5663] <... close resumed>) = 0 [pid 5662] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... openat resumed>) = 3 [pid 5665] <... munmap resumed>) = 0 [pid 5663] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5662] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5661] <... mount resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] newfstatat(3, "", [pid 5662] <... mkdir resumed>) = 0 [pid 5661] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5665] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5662] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5661] <... openat resumed>) = 3 [pid 5059] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] getdents64(3, [pid 5665] <... openat resumed>) = 4 [pid 5663] <... mkdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5665] ioctl(4, LOOP_SET_FD, 3 [pid 5663] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5661] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [ 79.994234][ T5661] loop5: detected capacity change from 0 to 1024 [ 80.025431][ T5662] loop2: detected capacity change from 0 to 1024 [ 80.035961][ T5663] loop1: detected capacity change from 0 to 1024 [pid 5058] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5661] <... chdir resumed>) = 0 [pid 5661] ioctl(4, LOOP_CLR_FD) = 0 [pid 5661] close(4) = 0 [pid 5661] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5658] <... futex resumed>) = 0 [pid 5663] <... mount resumed>) = 0 [pid 5665] <... ioctl resumed>) = 0 [pid 5663] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5661] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5658] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = 0 [pid 5665] close(3 [pid 5663] <... openat resumed>) = 3 [pid 5661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5658] <... futex resumed>) = 0 [pid 5658] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5663] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5661] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5663] <... chdir resumed>) = 0 [pid 5662] <... mount resumed>) = 0 [pid 5663] ioctl(4, LOOP_CLR_FD) = 0 [pid 5663] close(4) = 0 [pid 5663] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5663] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5665] <... close resumed>) = 0 [pid 5662] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5661] <... mknod resumed>) = 0 [pid 5659] <... futex resumed>) = 0 [pid 5059] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5662] <... openat resumed>) = 3 [pid 5659] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5659] <... futex resumed>) = 1 [pid 5058] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] <... futex resumed>) = 0 [pid 5659] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5663] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5662] <... chdir resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5665] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5663] <... mknod resumed>) = 0 [pid 5662] ioctl(4, LOOP_CLR_FD [pid 5661] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5662] <... ioctl resumed>) = 0 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5662] close(4) = 0 [pid 5662] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5660] <... futex resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5660] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... mkdir resumed>) = 0 [pid 5663] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5661] <... futex resumed>) = 1 [pid 5660] <... futex resumed>) = 0 [pid 5658] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] <... futex resumed>) = 1 [pid 5660] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5659] <... futex resumed>) = 0 [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5659] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5659] <... futex resumed>) = 0 [pid 5658] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5663] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5659] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5658] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... openat resumed>) = 4 [pid 5663] <... open resumed>) = 4 [pid 5662] <... mknod resumed>) = 0 [pid 5658] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] newfstatat(4, "", [pid 5663] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5661] <... open resumed>) = 4 [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5663] <... futex resumed>) = 1 [pid 5662] <... futex resumed>) = 1 [pid 5661] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5660] <... futex resumed>) = 0 [pid 5659] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 80.062272][ T5665] loop0: detected capacity change from 0 to 1024 [pid 5058] getdents64(4, [pid 5663] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5662] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5660] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5659] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5661] <... futex resumed>) = 1 [pid 5660] <... futex resumed>) = 0 [pid 5659] <... futex resumed>) = 0 [pid 5658] <... futex resumed>) = 0 [pid 5059] <... openat resumed>) = 4 [pid 5663] sync( [pid 5662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5661] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5660] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5659] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] getdents64(4, [pid 5059] newfstatat(4, "", [pid 5658] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4 [pid 5661] sync( [pid 5658] <... futex resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] <... close resumed>) = 0 [pid 5658] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] getdents64(4, [pid 5665] <... mount resumed>) = 0 [pid 5058] rmdir("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5665] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] <... rmdir resumed>) = 0 [pid 5665] <... openat resumed>) = 3 [pid 5059] getdents64(4, [pid 5665] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5662] <... open resumed>) = 4 [pid 5059] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5665] <... chdir resumed>) = 0 [pid 5059] close(4 [pid 5665] ioctl(4, LOOP_CLR_FD [pid 5059] <... close resumed>) = 0 [pid 5058] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... ioctl resumed>) = 0 [pid 5662] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5665] close(4 [pid 5662] <... futex resumed>) = 1 [pid 5660] <... futex resumed>) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5058] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5662] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5660] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5665] <... close resumed>) = 0 [pid 5662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5660] <... futex resumed>) = 0 [pid 5059] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] unlink("./49/binderfs" [pid 5665] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] sync( [pid 5660] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] <... unlink resumed>) = 0 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5665] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5664] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5664] <... futex resumed>) = 0 [pid 5058] getdents64(3, [pid 5665] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5664] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5059] unlink("./48/binderfs" [pid 5058] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3 [pid 5665] <... mknod resumed>) = 0 [pid 5058] <... close resumed>) = 0 [pid 5058] rmdir("./49" [pid 5665] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5663] <... sync resumed>) = 0 [pid 5661] <... sync resumed>) = 0 [pid 5059] <... unlink resumed>) = 0 [pid 5663] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] <... sync resumed>) = 0 [pid 5661] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5663] <... futex resumed>) = 1 [pid 5662] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5661] <... futex resumed>) = 1 [pid 5659] <... futex resumed>) = 0 [pid 5658] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5058] <... rmdir resumed>) = 0 [pid 5665] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5664] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5663] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5662] <... futex resumed>) = 1 [pid 5661] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5660] <... futex resumed>) = 0 [pid 5659] exit_group(0 [pid 5658] exit_group(0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5663] <... futex resumed>) = ? [pid 5662] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5661] <... futex resumed>) = ? [pid 5660] exit_group(0 [pid 5659] <... exit_group resumed>) = ? [pid 5658] <... exit_group resumed>) = ? [pid 5665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5664] <... futex resumed>) = 0 [pid 5663] +++ exited with 0 +++ [pid 5662] <... futex resumed>) = ? [pid 5661] +++ exited with 0 +++ [pid 5660] <... exit_group resumed>) = ? [pid 5659] +++ exited with 0 +++ [pid 5059] close(3 [pid 5058] mkdir("./50", 0777 [pid 5665] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5664] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5658] +++ exited with 0 +++ [pid 5059] <... close resumed>) = 0 [pid 5056] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5059] rmdir("./48" [pid 5058] <... mkdir resumed>) = 0 [pid 5662] +++ exited with 0 +++ [pid 5660] +++ exited with 0 +++ [pid 5059] <... rmdir resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5056] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] mkdir("./49", 0777 [pid 5058] <... openat resumed>) = 3 [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] ioctl(3, LOOP_CLR_FD [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5660, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5056] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5060] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] <... mkdir resumed>) = 0 [pid 5058] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] restart_syscall(<... resuming interrupted clone ...> [pid 5056] <... openat resumed>) = 3 [pid 5058] close(3 [pid 5665] <... open resumed>) = 4 [pid 5060] <... openat resumed>) = 3 [pid 5058] <... close resumed>) = 0 [pid 5057] <... restart_syscall resumed>) = 0 [pid 5056] newfstatat(3, "", [pid 5060] newfstatat(3, "", [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] <... openat resumed>) = 3 [pid 5056] getdents64(3, ./strace-static-x86_64: Process 5666 attached [pid 5665] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] getdents64(3, [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5057] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5056] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5666] set_robust_list(0x555555d616a0, 24 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5060] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5666 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5666] <... set_robust_list resumed>) = 0 [pid 5665] sync( [pid 5664] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5666] chdir("./50" [pid 5664] <... futex resumed>) = 0 [pid 5059] close(3 [pid 5057] <... openat resumed>) = 3 [pid 5664] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... close resumed>) = 0 [pid 5057] newfstatat(3, "", [pid 5666] <... chdir resumed>) = 0 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] getdents64(3, 0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5667 attached ) = 0 [pid 5666] setpgid(0, 0) = 0 [pid 5667] set_robust_list(0x555555d616a0, 24) = 0 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5060] <... umount2 resumed>) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5667 [pid 5667] chdir("./49") = 0 [pid 5666] <... openat resumed>) = 3 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] write(3, "1000", 4 [pid 5665] <... sync resumed>) = 0 [pid 5057] <... umount2 resumed>) = 0 [pid 5056] <... umount2 resumed>) = 0 [pid 5667] <... prctl resumed>) = 0 [pid 5666] <... write resumed>) = 4 [pid 5665] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5667] setpgid(0, 0 [pid 5666] close(3 [pid 5667] <... setpgid resumed>) = 0 [pid 5666] <... close resumed>) = 0 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5666] symlink("/dev/binderfs", "./binderfs" [pid 5665] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5664] exit_group(0 [pid 5060] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... futex resumed>) = ? [pid 5664] <... exit_group resumed>) = ? [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] newfstatat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5057] newfstatat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] newfstatat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5060] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5666] <... symlink resumed>) = 0 [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] openat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] umount2("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] <... openat resumed>) = 4 [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] openat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5666] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] newfstatat(4, "", [pid 5057] openat(AT_FDCWD, "./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] <... openat resumed>) = 4 [pid 5667] <... openat resumed>) = 3 [pid 5666] <... futex resumed>) = 0 [pid 5060] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5665] +++ exited with 0 +++ [pid 5664] +++ exited with 0 +++ [pid 5060] getdents64(4, [pid 5056] newfstatat(4, "", [pid 5667] write(3, "1000", 4 [pid 5666] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5057] <... openat resumed>) = 4 [pid 5056] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5667] <... write resumed>) = 4 [pid 5666] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5060] getdents64(4, [pid 5057] newfstatat(4, "", [pid 5056] getdents64(4, [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5664, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5060] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5057] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5667] close(3 [pid 5666] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5060] close(4 [pid 5057] getdents64(4, [pid 5666] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5667] <... close resumed>) = 0 [pid 5666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5060] <... close resumed>) = 0 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5060] rmdir("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5667] symlink("/dev/binderfs", "./binderfs" [pid 5666] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5055] <... openat resumed>) = 3 [pid 5666] <... mprotect resumed>) = 0 [pid 5057] getdents64(4, [pid 5056] getdents64(4, [pid 5055] newfstatat(3, "", [pid 5667] <... symlink resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5056] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5060] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(4 [pid 5056] close(4 [pid 5055] getdents64(3, [pid 5057] <... close resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 5667] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5666] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5057] rmdir("./48/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] rmdir("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5055] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5060] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] <... rmdir resumed>) = 0 [pid 5667] <... futex resumed>) = 0 [pid 5666] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5057] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5666] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5667] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5060] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5057] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5666] <... clone3 resumed> => {parent_tid=[5668]}, 88) = 5668 [pid 5667] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5666] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] unlink("./49/binderfs" [pid 5057] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5056] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5667] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5666] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5666] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5666] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5668 attached [pid 5667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5666] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] <... unlink resumed>) = 0 [pid 5057] unlink("./48/binderfs" [pid 5056] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5667] <... mmap resumed>) = 0x7f923ecd1000 [pid 5667] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5668] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5667] <... mprotect resumed>) = 0 [pid 5060] getdents64(3, [pid 5057] <... unlink resumed>) = 0 [pid 5056] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5668] <... rseq resumed>) = 0 [pid 5060] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5057] getdents64(3, [pid 5668] set_robust_list(0x7f923ecf19a0, 24 [pid 5667] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5056] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5057] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5056] unlink("./49/binderfs" [pid 5668] rt_sigprocmask(SIG_SETMASK, [], [pid 5060] close(3 [pid 5057] close(3 [pid 5056] <... unlink resumed>) = 0 [pid 5668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... close resumed>) = 0 [pid 5057] <... close resumed>) = 0 [pid 5056] getdents64(3, [pid 5055] <... umount2 resumed>) = 0 [pid 5668] memfd_create("syzkaller", 0 [pid 5060] rmdir("./49" [pid 5057] rmdir("./48" [pid 5056] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5668] <... memfd_create resumed>) = 3 [pid 5060] <... rmdir resumed>) = 0 [pid 5057] <... rmdir resumed>) = 0 [pid 5056] close(3 [pid 5668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] mkdir("./50", 0777 [pid 5056] <... close resumed>) = 0 [pid 5668] <... mmap resumed>) = 0x7f92368d1000 [pid 5057] mkdir("./49", 0777 [pid 5056] rmdir("./49" [pid 5668] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5667] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5060] <... mkdir resumed>) = 0 [pid 5057] <... mkdir resumed>) = 0 [pid 5056] <... rmdir resumed>) = 0 [pid 5667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5055] newfstatat(AT_FDCWD, "./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5055] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5056] mkdir("./50", 0777 [pid 5055] openat(AT_FDCWD, "./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5667] <... clone3 resumed> => {parent_tid=[5669]}, 88) = 5669 ./strace-static-x86_64: Process 5669 attached [pid 5060] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5056] <... mkdir resumed>) = 0 [pid 5055] newfstatat(4, "", [pid 5669] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5060] <... openat resumed>) = 3 [pid 5055] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5055] getdents64(4, [pid 5669] <... rseq resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5669] set_robust_list(0x7f923ecf19a0, 24 [pid 5060] ioctl(3, LOOP_CLR_FD [pid 5057] ioctl(3, LOOP_CLR_FD [pid 5669] <... set_robust_list resumed>) = 0 [pid 5060] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5057] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5056] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5055] getdents64(4, [pid 5669] rt_sigprocmask(SIG_SETMASK, [], [pid 5668] <... write resumed>) = 524288 [pid 5060] close(3 [pid 5057] close(3 [pid 5056] <... openat resumed>) = 3 [pid 5055] <... getdents64 resumed>0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5669] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5055] close(4) = 0 [pid 5055] rmdir("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5057] <... close resumed>) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] ioctl(3, LOOP_CLR_FD [pid 5060] <... close resumed>) = 0 [pid 5057] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] close(3 [pid 5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5056] <... close resumed>) = 0 [pid 5667] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5671 attached [pid 5667] <... futex resumed>) = 1 [pid 5667] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5670 attached [pid 5671] set_robust_list(0x555555d616a0, 24 [pid 5055] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] set_robust_list(0x555555d616a0, 24 [pid 5669] <... futex resumed>) = 0 [pid 5055] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5670] <... set_robust_list resumed>) = 0 [pid 5669] memfd_create("syzkaller", 0 [pid 5060] <... clone resumed>, child_tidptr=0x555555d61690) = 5671 [pid 5057] <... clone resumed>, child_tidptr=0x555555d61690) = 5670 [pid 5055] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5670] chdir("./49" [pid 5669] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5672 attached [pid 5670] <... chdir resumed>) = 0 [pid 5669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5668] munmap(0x7f92368d1000, 138412032 [pid 5056] <... clone resumed>, child_tidptr=0x555555d61690) = 5672 [pid 5055] unlink("./50/binderfs" [pid 5672] set_robust_list(0x555555d616a0, 24 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5669] <... mmap resumed>) = 0x7f92368d1000 [pid 5668] <... munmap resumed>) = 0 [pid 5055] <... unlink resumed>) = 0 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5671] chdir("./50" [pid 5670] <... prctl resumed>) = 0 [pid 5669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5668] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5672] chdir("./50" [pid 5670] setpgid(0, 0 [pid 5668] <... openat resumed>) = 4 [pid 5055] getdents64(3, [pid 5671] <... chdir resumed>) = 0 [pid 5670] <... setpgid resumed>) = 0 [pid 5668] ioctl(4, LOOP_SET_FD, 3 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5055] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5672] <... chdir resumed>) = 0 [pid 5671] <... prctl resumed>) = 0 [pid 5055] close(3 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5671] setpgid(0, 0 [pid 5670] <... openat resumed>) = 3 [pid 5055] <... close resumed>) = 0 [pid 5672] <... prctl resumed>) = 0 [pid 5670] write(3, "1000", 4 [pid 5055] rmdir("./50" [pid 5670] <... write resumed>) = 4 [pid 5672] setpgid(0, 0 [pid 5670] close(3) = 0 [pid 5055] <... rmdir resumed>) = 0 [pid 5672] <... setpgid resumed>) = 0 [pid 5671] <... setpgid resumed>) = 0 [pid 5670] symlink("/dev/binderfs", "./binderfs" [pid 5669] <... write resumed>) = 524288 [pid 5055] mkdir("./51", 0777 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5670] <... symlink resumed>) = 0 [pid 5672] <... openat resumed>) = 3 [pid 5672] write(3, "1000", 4 [pid 5671] <... openat resumed>) = 3 [pid 5670] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5055] <... mkdir resumed>) = 0 [pid 5672] <... write resumed>) = 4 [pid 5670] <... futex resumed>) = 0 [pid 5672] close(3 [pid 5670] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5672] <... close resumed>) = 0 [pid 5670] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5672] symlink("/dev/binderfs", "./binderfs" [pid 5670] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5671] write(3, "1000", 4 [pid 5672] <... symlink resumed>) = 0 [pid 5670] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5669] munmap(0x7f92368d1000, 138412032 [pid 5055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5672] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] <... write resumed>) = 4 [pid 5670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5669] <... munmap resumed>) = 0 [pid 5672] <... futex resumed>) = 0 [pid 5670] <... mmap resumed>) = 0x7f923ecd1000 [pid 5669] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5668] <... ioctl resumed>) = 0 [pid 5671] close(3 [pid 5055] <... openat resumed>) = 3 [pid 5672] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5671] <... close resumed>) = 0 [pid 5670] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5668] close(3 [pid 5672] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5671] symlink("/dev/binderfs", "./binderfs" [pid 5670] <... mprotect resumed>) = 0 [pid 5669] <... openat resumed>) = 4 [pid 5668] <... close resumed>) = 0 [pid 5672] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5671] <... symlink resumed>) = 0 [pid 5670] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5669] ioctl(4, LOOP_SET_FD, 3 [pid 5668] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5672] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5671] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5668] <... mkdir resumed>) = 0 [pid 5672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5670] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5055] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5673 attached [pid 5672] <... mmap resumed>) = 0x7f923ecd1000 [ 80.342156][ T5668] loop3: detected capacity change from 0 to 1024 [pid 5668] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5673] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5672] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5671] <... futex resumed>) = 0 [pid 5670] <... clone3 resumed> => {parent_tid=[5673]}, 88) = 5673 [pid 5669] <... ioctl resumed>) = 0 [pid 5055] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5672] <... mprotect resumed>) = 0 [pid 5671] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5670] rt_sigprocmask(SIG_SETMASK, [], [pid 5055] close(3 [pid 5673] <... rseq resumed>) = 0 [pid 5671] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5055] <... close resumed>) = 0 [pid 5673] set_robust_list(0x7f923ecf19a0, 24 [pid 5671] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5673] <... set_robust_list resumed>) = 0 [pid 5672] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5671] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5670] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5673] rt_sigprocmask(SIG_SETMASK, [], [pid 5672] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5670] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5673] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5672] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5670] <... futex resumed>) = 0 [pid 5669] close(3 [pid 5668] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5675 attached ./strace-static-x86_64: Process 5674 attached [pid 5673] memfd_create("syzkaller", 0 [pid 5671] <... mmap resumed>) = 0x7f923ecd1000 [pid 5670] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5669] <... close resumed>) = 0 [pid 5668] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5055] <... clone resumed>, child_tidptr=0x555555d61690) = 5674 [pid 5675] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5674] set_robust_list(0x555555d616a0, 24 [pid 5671] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5669] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5668] <... openat resumed>) = 3 [pid 5674] <... set_robust_list resumed>) = 0 [pid 5675] <... rseq resumed>) = 0 [pid 5673] <... memfd_create resumed>) = 3 [pid 5672] <... clone3 resumed> => {parent_tid=[5675]}, 88) = 5675 [pid 5671] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5675] set_robust_list(0x7f923ecf19a0, 24 [pid 5674] chdir("./51" [pid 5673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5672] rt_sigprocmask(SIG_SETMASK, [], [pid 5675] <... set_robust_list resumed>) = 0 [pid 5674] <... chdir resumed>) = 0 [pid 5672] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5671] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5669] <... mkdir resumed>) = 0 [pid 5668] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5675] rt_sigprocmask(SIG_SETMASK, [], [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5673] <... mmap resumed>) = 0x7f92368d1000 [pid 5672] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5668] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5676 attached [pid 5675] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5674] <... prctl resumed>) = 0 [pid 5672] <... futex resumed>) = 0 [pid 5669] mount("/dev/loop4", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5676] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5675] memfd_create("syzkaller", 0 [pid 5674] setpgid(0, 0 [pid 5672] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5671] <... clone3 resumed> => {parent_tid=[5676]}, 88) = 5676 [pid 5668] ioctl(4, LOOP_CLR_FD [pid 5675] <... memfd_create resumed>) = 3 [pid 5674] <... setpgid resumed>) = 0 [pid 5675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5676] <... rseq resumed>) = 0 [pid 5675] <... mmap resumed>) = 0x7f92368d1000 [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5671] rt_sigprocmask(SIG_SETMASK, [], [pid 5669] <... mount resumed>) = 0 [pid 5668] <... ioctl resumed>) = 0 [pid 5676] set_robust_list(0x7f923ecf19a0, 24 [pid 5671] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5669] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5668] close(4 [pid 5676] <... set_robust_list resumed>) = 0 [pid 5671] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5669] <... openat resumed>) = 3 [pid 5676] rt_sigprocmask(SIG_SETMASK, [], [pid 5671] <... futex resumed>) = 0 [pid 5669] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5676] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5671] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5669] <... chdir resumed>) = 0 [pid 5668] <... close resumed>) = 0 [pid 5676] memfd_create("syzkaller", 0 [pid 5669] ioctl(4, LOOP_CLR_FD [pid 5676] <... memfd_create resumed>) = 3 [pid 5669] <... ioctl resumed>) = 0 [pid 5676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5669] close(4 [pid 5676] <... mmap resumed>) = 0x7f92368d1000 [pid 5669] <... close resumed>) = 0 [pid 5676] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5669] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5667] <... futex resumed>) = 0 [pid 5667] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5667] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5669] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0 [pid 5668] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5674] <... openat resumed>) = 3 [ 80.383718][ T5669] loop4: detected capacity change from 0 to 1024 [pid 5669] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] <... write resumed>) = 524288 [pid 5675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5674] write(3, "1000", 4 [pid 5673] <... write resumed>) = 524288 [pid 5668] <... futex resumed>) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5674] <... write resumed>) = 4 [pid 5668] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5676] munmap(0x7f92368d1000, 138412032 [pid 5674] close(3 [pid 5669] <... futex resumed>) = 1 [pid 5667] <... futex resumed>) = 0 [pid 5666] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] <... munmap resumed>) = 0 [pid 5669] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5668] <... futex resumed>) = 0 [pid 5667] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5666] <... futex resumed>) = 1 [pid 5675] <... write resumed>) = 524288 [pid 5674] <... close resumed>) = 0 [pid 5668] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5667] <... futex resumed>) = 0 [pid 5666] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5673] munmap(0x7f92368d1000, 138412032 [pid 5676] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5674] symlink("/dev/binderfs", "./binderfs" [pid 5673] <... munmap resumed>) = 0 [pid 5667] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5676] <... openat resumed>) = 4 [pid 5674] <... symlink resumed>) = 0 [pid 5673] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5674] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] ioctl(4, LOOP_SET_FD, 3 [pid 5675] munmap(0x7f92368d1000, 138412032 [pid 5674] <... futex resumed>) = 0 [pid 5673] <... openat resumed>) = 4 [pid 5669] <... open resumed>) = 4 [pid 5674] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, [pid 5673] ioctl(4, LOOP_SET_FD, 3 [pid 5675] <... munmap resumed>) = 0 [pid 5674] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5669] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5674] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5668] <... mknod resumed>) = 0 [pid 5674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5668] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5675] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5674] <... mmap resumed>) = 0x7f923ecd1000 [pid 5668] <... futex resumed>) = 1 [pid 5675] <... openat resumed>) = 4 [pid 5674] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE [pid 5668] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5674] <... mprotect resumed>) = 0 [pid 5675] ioctl(4, LOOP_SET_FD, 3 [pid 5674] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5669] <... futex resumed>) = 1 [pid 5667] <... futex resumed>) = 0 [pid 5666] <... futex resumed>) = 0 [pid 5669] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5667] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5666] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] <... ioctl resumed>) = 0 [pid 5669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5668] <... futex resumed>) = 0 [pid 5667] <... futex resumed>) = 0 [pid 5666] <... futex resumed>) = 1 [pid 5674] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5668] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5667] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5666] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} => {parent_tid=[5677]}, 88) = 5677 [pid 5674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5674] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5677 attached [pid 5674] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5669] sync( [pid 5677] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5668] <... open resumed>) = 4 [pid 5677] <... rseq resumed>) = 0 [pid 5677] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5677] memfd_create("syzkaller", 0 [pid 5676] close(3 [pid 5668] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5677] <... memfd_create resumed>) = 3 [pid 5677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5676] <... close resumed>) = 0 [pid 5675] <... ioctl resumed>) = 0 [pid 5668] <... futex resumed>) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5677] <... mmap resumed>) = 0x7f92368d1000 [pid 5676] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5675] close(3 [pid 5668] sync( [pid 5666] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5675] <... close resumed>) = 0 [pid 5666] <... futex resumed>) = 0 [pid 5675] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5666] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5676] <... mkdir resumed>) = 0 [pid 5675] <... mkdir resumed>) = 0 [pid 5677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5676] mount("/dev/loop5", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5675] mount("/dev/loop1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5673] <... ioctl resumed>) = 0 [pid 5669] <... sync resumed>) = 0 [pid 5677] <... write resumed>) = 524288 [pid 5673] close(3 [pid 5669] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5667] <... futex resumed>) = 0 [ 80.467051][ T5676] loop5: detected capacity change from 0 to 1024 [ 80.474012][ T5675] loop1: detected capacity change from 0 to 1024 [ 80.483021][ T5673] loop2: detected capacity change from 0 to 1024 [pid 5667] exit_group(0) = ? [pid 5673] <... close resumed>) = 0 [pid 5673] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5677] munmap(0x7f92368d1000, 138412032 [pid 5676] <... mount resumed>) = 0 [pid 5675] <... mount resumed>) = 0 [pid 5673] <... mkdir resumed>) = 0 [pid 5669] +++ exited with 0 +++ [pid 5668] <... sync resumed>) = 0 [pid 5667] +++ exited with 0 +++ [pid 5676] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5676] <... openat resumed>) = 3 [pid 5675] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5677] <... munmap resumed>) = 0 [pid 5676] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5675] <... openat resumed>) = 3 [pid 5673] mount("/dev/loop2", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5668] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5677] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5676] <... chdir resumed>) = 0 [pid 5675] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5668] <... futex resumed>) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5059] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5676] ioctl(4, LOOP_CLR_FD [pid 5675] <... chdir resumed>) = 0 [pid 5668] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5666] exit_group(0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5676] <... ioctl resumed>) = 0 [pid 5675] ioctl(4, LOOP_CLR_FD [pid 5668] <... futex resumed>) = ? [pid 5666] <... exit_group resumed>) = ? [pid 5059] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5677] <... openat resumed>) = 4 [pid 5676] close(4 [pid 5675] <... ioctl resumed>) = 0 [pid 5668] +++ exited with 0 +++ [pid 5666] +++ exited with 0 +++ [pid 5059] <... openat resumed>) = 3 [pid 5676] <... close resumed>) = 0 [pid 5675] close(4 [pid 5059] newfstatat(3, "", [pid 5676] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5675] <... close resumed>) = 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5676] <... futex resumed>) = 1 [pid 5675] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] <... futex resumed>) = 0 [pid 5059] getdents64(3, [pid 5676] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5675] <... futex resumed>) = 1 [pid 5671] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5675] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5671] <... futex resumed>) = 0 [pid 5059] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5677] ioctl(4, LOOP_SET_FD, 3 [pid 5676] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5673] <... mount resumed>) = 0 [pid 5672] <... futex resumed>) = 0 [pid 5671] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5666, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5673] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY [pid 5672] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5672] <... futex resumed>) = 1 [pid 5672] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5675] <... futex resumed>) = 0 [pid 5673] <... openat resumed>) = 3 [pid 5059] <... umount2 resumed>) = 0 [pid 5675] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5676] <... mknod resumed>) = 0 [pid 5676] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5676] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5671] <... futex resumed>) = 0 [pid 5671] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] <... futex resumed>) = 0 [pid 5671] <... futex resumed>) = 1 [pid 5676] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5671] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5058] newfstatat(3, "", [pid 5675] <... mknod resumed>) = 0 [pid 5677] <... ioctl resumed>) = 0 [pid 5676] <... open resumed>) = 4 [pid 5673] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5059] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5673] <... chdir resumed>) = 0 [pid 5058] getdents64(3, [pid 5675] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5673] ioctl(4, LOOP_CLR_FD [pid 5058] <... getdents64 resumed>0x555555d62730 /* 4 entries */, 32768) = 352 [pid 5677] close(3 [pid 5673] <... ioctl resumed>) = 0 [pid 5058] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] close(4) = 0 [pid 5673] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5677] <... close resumed>) = 0 [pid 5676] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5675] <... futex resumed>) = 1 [pid 5673] <... futex resumed>) = 1 [pid 5672] <... futex resumed>) = 0 [pid 5670] <... futex resumed>) = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5677] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5676] <... futex resumed>) = 1 [pid 5675] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5671] <... futex resumed>) = 0 [pid 5670] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5677] <... mkdir resumed>) = 0 [pid 5676] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5673] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5672] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] <... futex resumed>) = 0 [pid 5059] newfstatat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", [pid 5676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5675] <... futex resumed>) = 0 [pid 5672] <... futex resumed>) = 1 [pid 5671] <... futex resumed>) = 0 [pid 5670] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5676] sync( [pid 5675] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [ 80.559285][ T5677] loop0: detected capacity change from 0 to 1024 [pid 5672] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5671] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5677] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5673] <... mknod resumed>) = 0 [pid 5059] umount2("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = 0 [pid 5673] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5670] <... futex resumed>) = 0 [pid 5673] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5670] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5673] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5670] <... futex resumed>) = 0 [pid 5673] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5670] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5059] openat(AT_FDCWD, "./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 80.619216][ T5675] ------------[ cut here ]------------ [ 80.625414][ T5675] kernel BUG at fs/hfsplus/bnode.c:618! [ 80.643625][ T5675] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 80.649829][ T5675] CPU: 1 PID: 5675 Comm: syz-executor165 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 [pid 5673] <... open resumed>) = 4 [pid 5059] newfstatat(4, "", [pid 5058] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5670] <... futex resumed>) = 0 [pid 5670] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5670] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5673] sync( [pid 5672] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5672] futex(0x7f923edbd6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecb0000 [pid 5672] mprotect(0x7f923ecb1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5672] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5672] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecd0990, parent_tid=0x7f923ecd0990, exit_signal=0, stack=0x7f923ecb0000, stack_size=0x20300, tls=0x7f923ecd06c0} => {parent_tid=[5678]}, 88) = 5678 [pid 5672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5672] futex(0x7f923edbd6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5672] futex(0x7f923edbd6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5678 attached [pid 5678] rseq(0x7f923ecd0fe0, 0x20, 0, 0x53053053) = 0 [pid 5678] set_robust_list(0x7f923ecd09a0, 24) = 0 [pid 5678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5678] sync( [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(4, 0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5059] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [ 80.660433][ T5675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 80.670509][ T5675] RIP: 0010:hfsplus_bnode_put+0x50c/0x520 [ 80.676275][ T5675] Code: ff e9 bf fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c f3 fe ff ff 4c 89 ef e8 7f 92 80 ff e9 e6 fe ff ff e8 b5 8a 24 ff 90 <0f> 0b e8 ad 8a 24 ff 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 0f [ 80.695899][ T5675] RSP: 0018:ffffc900056c7090 EFLAGS: 00010293 [ 80.701993][ T5675] RAX: ffffffff8269ef8b RBX: ffff888023f68e80 RCX: ffff88801d22bb80 [ 80.709982][ T5675] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 80.717963][ T5675] RBP: 0000000000000000 R08: ffffffff8269eb00 R09: 1ffff110047ed1d0 [ 80.725923][ T5675] R10: dffffc0000000000 R11: ffffed10047ed1d1 R12: ffff888023f68e00 [ 80.733884][ T5675] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888070d44000 [ 80.741880][ T5675] FS: 00007f923ecf16c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 80.750801][ T5675] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.757374][ T5675] CR2: 00007f923ecf2000 CR3: 0000000026030000 CR4: 00000000003506f0 [ 80.765361][ T5675] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.773319][ T5675] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.781277][ T5675] Call Trace: [ 80.784548][ T5675] [ 80.787472][ T5675] ? __die_body+0x8b/0xe0 [ 80.791812][ T5675] ? die+0xa1/0xd0 [ 80.795524][ T5675] ? do_trap+0x153/0x380 [ 80.799771][ T5675] ? hfsplus_bnode_put+0x50c/0x520 [ 80.804879][ T5675] ? do_error_trap+0x1dc/0x2c0 [ 80.809895][ T5675] ? hfsplus_bnode_put+0x50c/0x520 [ 80.815001][ T5675] ? do_int3+0x50/0x50 [ 80.819103][ T5675] ? handle_invalid_op+0x34/0x40 [ 80.824033][ T5675] ? hfsplus_bnode_put+0x50c/0x520 [ 80.829133][ T5675] ? exc_invalid_op+0x34/0x50 [ 80.833813][ T5675] ? asm_exc_invalid_op+0x1a/0x20 [ 80.838826][ T5675] ? hfsplus_bnode_put+0x80/0x520 [ 80.843840][ T5675] ? hfsplus_bnode_put+0x50b/0x520 [ 80.848946][ T5675] ? hfsplus_bnode_put+0x50c/0x520 [ 80.854054][ T5675] hfsplus_bmap_alloc+0x590/0x640 [ 80.859101][ T5675] ? hfsplus_bmap_reserve+0x4e0/0x4e0 [ 80.864469][ T5675] ? hfsplus_find_cat+0x3e8/0x5c0 [ 80.869481][ T5675] ? hfsplus_bnode_read_u16+0x146/0x2c0 [ 80.875028][ T5675] hfs_bnode_split+0xde/0x1110 [ 80.879784][ T5675] ? hfsplus_bnode_dump+0xa36/0xba0 [ 80.884975][ T5675] ? hfsplus_bnode_read+0xe9/0x1e0 [ 80.890082][ T5675] ? __asan_memcpy+0x40/0x70 [ 80.894664][ T5675] ? hfsplus_bnode_read_u16+0x1c1/0x2c0 [ 80.900202][ T5675] ? hfs_btree_inc_height+0xdb0/0xdb0 [ 80.905589][ T5675] ? hfs_find_1st_rec_by_cnid+0x3c0/0x3c0 [ 80.911299][ T5675] hfsplus_brec_insert+0x3a6/0xdd0 [ 80.916402][ T5675] ? do_raw_spin_unlock+0x13b/0x8b0 [ 80.921600][ T5675] ? hfsplus_brec_keylen+0x310/0x310 [ 80.926888][ T5675] ? hfsplus_cat_set_perms+0x2d1/0x630 [ 80.932342][ T5675] hfsplus_create_cat+0xef1/0x1b50 [ 80.937449][ T5675] ? __lock_acquire+0x1345/0x1fd0 [ 80.942472][ T5675] ? hfsplus_find_cat+0x5c0/0x5c0 [ 80.947505][ T5675] ? do_raw_spin_unlock+0x13b/0x8b0 [ 80.952696][ T5675] ? _raw_spin_unlock+0x28/0x40 [ 80.957542][ T5675] hfsplus_mknod+0x16a/0x2a0 [ 80.962127][ T5675] ? hfsplus_lookup+0xc70/0xc70 [ 80.966970][ T5675] path_openat+0x13fa/0x3290 [ 80.971555][ T5675] ? do_filp_open+0x490/0x490 [ 80.976243][ T5675] do_filp_open+0x234/0x490 [ 80.980734][ T5675] ? vfs_tmpfile+0x500/0x500 [ 80.985320][ T5675] ? _raw_spin_unlock+0x28/0x40 [ 80.990192][ T5675] ? alloc_fd+0x59c/0x640 [ 80.994516][ T5675] do_sys_openat2+0x13e/0x1d0 [ 80.999183][ T5675] ? do_sys_open+0x230/0x230 [ 81.003765][ T5675] ? _raw_spin_unlock_irq+0x2e/0x50 [ 81.008952][ T5675] ? ptrace_notify+0x278/0x380 [ 81.013711][ T5675] __x64_sys_open+0x225/0x270 [ 81.018380][ T5675] ? do_sys_openat2+0x1d0/0x1d0 [ 81.023222][ T5675] ? syscall_enter_from_user_mode+0xa4/0x2d0 [ 81.029192][ T5675] ? syscall_enter_from_user_mode+0xf5/0x2d0 [ 81.035161][ T5675] do_syscall_64+0x45/0x110 [ 81.039656][ T5675] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 81.045543][ T5675] RIP: 0033:0x7f923ed34c89 [ 81.049949][ T5675] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 81.069544][ T5675] RSP: 002b:00007f923ecf1218 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 81.078093][ T5675] RAX: ffffffffffffffda RBX: 00007f923edbd6a8 RCX: 00007f923ed34c89 [ 81.086054][ T5675] RDX: 0000000000000000 RSI: 000000000014937e RDI: 0000000020000180 [ 81.094014][ T5675] RBP: 00007f923edbd6a0 R08: 0000000000000000 R09: 0000000000000000 [ 81.101973][ T5675] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f923edbd6ac [ 81.109944][ T5675] R13: 00007f923ed890c0 R14: 00000000200003c0 R15: 0073756c70736668 [ 81.117924][ T5675] [pid 5059] close(4) = 0 [pid 5670] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5672] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5671] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5058] newfstatat(AT_FDCWD, "./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] umount2("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5058] openat(AT_FDCWD, "./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5059] rmdir("./49/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5058] <... openat resumed>) = 4 [pid 5058] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5058] getdents64(4, [pid 5059] <... rmdir resumed>) = 0 [pid 5058] <... getdents64 resumed>0x555555d6a770 /* 2 entries */, 32768) = 48 [pid 5058] getdents64(4, 0x555555d6a770 /* 0 entries */, 32768) = 0 [pid 5058] close(4) = 0 [pid 5058] rmdir("./50/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5058] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5058] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5058] unlink("./50/binderfs") = 0 [pid 5058] getdents64(3, 0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5058] close(3) = 0 [pid 5058] rmdir("./50") = 0 [pid 5059] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5058] mkdir("./51", 0777 [pid 5059] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5058] <... mkdir resumed>) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5058] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5058] close(3) = 0 [pid 5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5679 attached [pid 5679] set_robust_list(0x555555d616a0, 24) = 0 [pid 5679] chdir("./51" [pid 5058] <... clone resumed>, child_tidptr=0x555555d61690) = 5679 [pid 5679] <... chdir resumed>) = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5679] setpgid(0, 0 [pid 5059] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5679] <... setpgid resumed>) = 0 [pid 5059] unlink("./49/binderfs" [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] <... unlink resumed>) = 0 [pid 5679] write(3, "1000", 4) = 4 [pid 5679] close(3) = 0 [pid 5679] symlink("/dev/binderfs", "./binderfs" [pid 5059] getdents64(3, [pid 5679] <... symlink resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d62730 /* 0 entries */, 32768) = 0 [pid 5679] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] close(3 [pid 5679] <... futex resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5679] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [pid 5059] rmdir("./49" [pid 5679] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5059] <... rmdir resumed>) = 0 [pid 5679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f923ecd1000 [pid 5679] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5679] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5679] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} [pid 5059] mkdir("./50", 0777./strace-static-x86_64: Process 5680 attached ) = 0 [pid 5680] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053 [pid 5679] <... clone3 resumed> => {parent_tid=[5680]}, 88) = 5680 [pid 5680] <... rseq resumed>) = 0 [pid 5679] rt_sigprocmask(SIG_SETMASK, [], [pid 5680] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5059] ioctl(3, LOOP_CLR_FD [pid 5680] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5680] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] close(3 [pid 5680] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5677] <... mount resumed>) = 0 [pid 5059] <... close resumed>) = 0 [ 81.121025][ T5675] Modules linked in: [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5681 attached [pid 5679] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] <... clone resumed>, child_tidptr=0x555555d61690) = 5681 [pid 5677] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5677] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5677] ioctl(4, LOOP_CLR_FD) = 0 [pid 5677] close(4) = 0 [pid 5677] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5674] <... futex resumed>) = 0 [pid 5677] futex(0x7f923edbd6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5674] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5674] <... futex resumed>) = 0 [pid 5677] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 [pid 5674] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5681] set_robust_list(0x555555d616a0, 24 [pid 5679] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5680] <... futex resumed>) = 0 [pid 5679] <... futex resumed>) = 1 [pid 5681] chdir("./50" [pid 5680] memfd_create("syzkaller", 0 [pid 5679] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5680] <... memfd_create resumed>) = 3 [pid 5680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [pid 5681] <... chdir resumed>) = 0 [pid 5677] <... mknod resumed>) = 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5677] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5681] <... prctl resumed>) = 0 [pid 5677] <... futex resumed>) = 1 [pid 5674] <... futex resumed>) = 0 [pid 5681] setpgid(0, 0 [pid 5677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5674] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5674] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5681] <... setpgid resumed>) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] write(3, "1000", 4 [pid 5677] <... open resumed>) = 4 [pid 5677] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5674] <... futex resumed>) = 0 [pid 5674] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5674] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5681] <... write resumed>) = 4 [pid 5677] sync( [pid 5681] close(3) = 0 [pid 5681] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5681] futex(0x7f923edbd6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5681] rt_sigaction(SIGRT_1, {sa_handler=0x7f923ed5b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f923ed4c250}, NULL, 8) = 0 [ 81.149257][ T5675] ---[ end trace 0000000000000000 ]--- [ 81.185825][ T5675] RIP: 0010:hfsplus_bnode_put+0x50c/0x520 [pid 5681] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5680] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5681] <... mmap resumed>) = 0x7f923ecd1000 [pid 5680] <... write resumed>) = 524288 [pid 5681] mprotect(0x7f923ecd2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5681] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5681] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f923ecf1990, parent_tid=0x7f923ecf1990, exit_signal=0, stack=0x7f923ecd1000, stack_size=0x20300, tls=0x7f923ecf16c0} => {parent_tid=[5682]}, 88) = 5682 [pid 5681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5681] futex(0x7f923edbd6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5681] futex(0x7f923edbd6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5682 attached [pid 5682] rseq(0x7f923ecf1fe0, 0x20, 0, 0x53053053) = 0 [pid 5682] set_robust_list(0x7f923ecf19a0, 24) = 0 [pid 5682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5682] memfd_create("syzkaller", 0 [pid 5674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5682] <... memfd_create resumed>) = 3 [pid 5682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92368d1000 [ 81.191617][ T5675] Code: ff e9 bf fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c f3 fe ff ff 4c 89 ef e8 7f 92 80 ff e9 e6 fe ff ff e8 b5 8a 24 ff 90 <0f> 0b e8 ad 8a 24 ff 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 0f [ 81.212805][ T5675] RSP: 0018:ffffc900056c7090 EFLAGS: 00010293 [ 81.218997][ T5675] RAX: ffffffff8269ef8b RBX: ffff888023f68e80 RCX: ffff88801d22bb80 [ 81.227328][ T5675] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 81.235448][ T5675] RBP: 0000000000000000 R08: ffffffff8269eb00 R09: 1ffff110047ed1d0 [pid 5682] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5680] munmap(0x7f92368d1000, 138412032) = 0 [pid 5680] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5682] munmap(0x7f92368d1000, 138412032 [pid 5680] <... openat resumed>) = 4 [pid 5680] ioctl(4, LOOP_SET_FD, 3 [pid 5682] <... munmap resumed>) = 0 [ 81.243480][ T5675] R10: dffffc0000000000 R11: ffffed10047ed1d1 R12: ffff888023f68e00 [ 81.251675][ T5675] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888070d44000 [ 81.260082][ T5675] FS: 00007f923ecf16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 81.269142][ T5675] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.275797][ T5675] CR2: 00007ffd45d04338 CR3: 0000000026030000 CR4: 00000000003506f0 [ 81.278391][ T5680] loop3: detected capacity change from 0 to 1024 [ 81.284307][ T5675] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [pid 5680] <... ioctl resumed>) = 0 [pid 5682] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5680] close(3) = 0 [pid 5682] ioctl(4, LOOP_SET_FD, 3 [pid 5680] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777 [pid 5682] <... ioctl resumed>) = 0 [pid 5680] <... mkdir resumed>) = 0 [pid 5682] close(3) = 0 [pid 5680] mount("/dev/loop3", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "" [pid 5682] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5680] <... mount resumed>) = 0 [pid 5680] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [ 81.298289][ T5675] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.306295][ T5675] Kernel panic - not syncing: Fatal exception [ 81.306368][ T5682] loop4: detected capacity change from 0 to 1024 [ 81.318861][ T5675] Kernel Offset: disabled [ 81.323177][ T5675] Rebooting in 86400 seconds..