./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]