./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1068866264 <...> Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. execve("./syz-executor1068866264", ["./syz-executor1068866264"], 0x7ffce7434c30 /* 10 vars */) = 0 brk(NULL) = 0x5555555f7000 brk(0x5555555f7c40) = 0x5555555f7c40 arch_prctl(ARCH_SET_FS, 0x5555555f7300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555555f75d0) = 5019 set_robust_list(0x5555555f75e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f7883f82570, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f7883f82c40}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f7883f82610, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7883f82c40}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1068866264", 4096) = 28 brk(0x555555618c40) = 0x555555618c40 brk(0x555555619000) = 0x555555619000 mprotect(0x7f7884049000, 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 5020 attached , child_tidptr=0x5555555f75d0) = 5020 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5020] set_robust_list(0x5555555f75e0, 24./strace-static-x86_64: Process 5021 attached [pid 5019] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5021 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5020] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5022 attached [pid 5019] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5022 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555555f75d0) = 5023 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] set_robust_list(0x5555555f75e0, 24 [pid 5020] getpid(./strace-static-x86_64: Process 5023 attached [pid 5022] <... set_robust_list resumed>) = 0 [pid 5019] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5024 [pid 5022] getpid( [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] <... getpid resumed>) = 5022 ./strace-static-x86_64: Process 5025 attached ./strace-static-x86_64: Process 5024 attached [pid 5023] set_robust_list(0x5555555f75e0, 24 [pid 5022] mkdir("./syzkaller.Ji0dwY", 0700 [pid 5021] set_robust_list(0x5555555f75e0, 24 [pid 5020] <... getpid resumed>) = 5020 [pid 5019] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5025 [pid 5025] set_robust_list(0x5555555f75e0, 24 [pid 5024] set_robust_list(0x5555555f75e0, 24 [pid 5023] <... set_robust_list resumed>) = 0 [pid 5022] <... mkdir resumed>) = 0 [pid 5022] chmod("./syzkaller.Ji0dwY", 0777 [pid 5021] <... set_robust_list resumed>) = 0 [pid 5022] <... chmod resumed>) = 0 [pid 5022] chdir("./syzkaller.Ji0dwY" [pid 5021] getpid( [pid 5020] mkdir("./syzkaller.HzEtXN", 0700 [pid 5022] <... chdir resumed>) = 0 [pid 5023] getpid( [pid 5022] mkdir("./0", 0777 [pid 5021] <... getpid resumed>) = 5021 [pid 5023] <... getpid resumed>) = 5023 [pid 5022] <... mkdir resumed>) = 0 [pid 5020] <... mkdir resumed>) = 0 [pid 5022] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5021] mkdir("./syzkaller.TsfPjQ", 0700 [pid 5022] <... openat resumed>) = 3 [pid 5025] <... set_robust_list resumed>) = 0 [pid 5024] <... set_robust_list resumed>) = 0 [pid 5023] mkdir("./syzkaller.WUOQY0", 0700 [pid 5022] ioctl(3, LOOP_CLR_FD [pid 5021] <... mkdir resumed>) = 0 [pid 5020] chmod("./syzkaller.HzEtXN", 0777 [pid 5022] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5022] close(3 [pid 5021] chmod("./syzkaller.TsfPjQ", 0777 [pid 5025] getpid( [pid 5024] getpid( [pid 5023] <... mkdir resumed>) = 0 [pid 5022] <... close resumed>) = 0 [pid 5020] <... chmod resumed>) = 0 [pid 5024] <... getpid resumed>) = 5024 [pid 5023] chmod("./syzkaller.WUOQY0", 0777 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] <... chmod resumed>) = 0 [pid 5020] chdir("./syzkaller.HzEtXN" [pid 5025] <... getpid resumed>) = 5025 [pid 5024] mkdir("./syzkaller.yoRVw7", 0700 [pid 5023] <... chmod resumed>) = 0 [pid 5022] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5027 [pid 5021] chdir("./syzkaller.TsfPjQ") = 0 [pid 5021] mkdir("./0", 0777) = 0 [pid 5020] <... chdir resumed>) = 0 [pid 5021] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5024] <... mkdir resumed>) = 0 [pid 5023] chdir("./syzkaller.WUOQY0" [pid 5021] <... openat resumed>) = 3 [pid 5020] mkdir("./0", 0777 [pid 5025] mkdir("./syzkaller.Dt3iac", 0700 [pid 5024] chmod("./syzkaller.yoRVw7", 0777 [pid 5021] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5021] close(3 [pid 5025] <... mkdir resumed>) = 0 [pid 5024] <... chmod resumed>) = 0 [pid 5023] <... chdir resumed>) = 0 [pid 5021] <... close resumed>) = 0 [pid 5020] <... mkdir resumed>) = 0 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5025] chmod("./syzkaller.Dt3iac", 0777 [pid 5024] chdir("./syzkaller.yoRVw7" [pid 5023] mkdir("./0", 0777 [pid 5020] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5021] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5028 [pid 5025] <... chmod resumed>) = 0 [pid 5024] <... chdir resumed>) = 0 [pid 5023] <... mkdir resumed>) = 0 [pid 5025] chdir("./syzkaller.Dt3iac" [pid 5024] mkdir("./0", 0777 [pid 5023] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5020] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5028 attached [pid 5025] <... chdir resumed>) = 0 [pid 5028] set_robust_list(0x5555555f75e0, 24 [pid 5025] mkdir("./0", 0777 [pid 5024] <... mkdir resumed>) = 0 [pid 5020] ioctl(3, LOOP_CLR_FD [pid 5023] <... openat resumed>) = 3 [pid 5020] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5028] <... set_robust_list resumed>) = 0 [pid 5028] chdir("./0") = 0 [pid 5025] <... mkdir resumed>) = 0 [pid 5023] ioctl(3, LOOP_CLR_FD [pid 5020] close(3 [pid 5024] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5028] setpgid(0, 0 [pid 5020] <... close resumed>) = 0 [pid 5025] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5024] <... openat resumed>) = 3 [pid 5023] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5020] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] <... setpgid resumed>) = 0 [pid 5028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5028] write(3, "1000", 4 [pid 5025] <... openat resumed>) = 3 [pid 5024] ioctl(3, LOOP_CLR_FD [pid 5023] close(3 [pid 5020] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5029 [pid 5028] <... write resumed>) = 4 [pid 5028] close(3 [pid 5023] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5028] symlink("/dev/binderfs", "./binderfs" [pid 5024] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5025] ioctl(3, LOOP_CLR_FD [pid 5024] close(3 [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5029 attached ./strace-static-x86_64: Process 5027 attached [pid 5028] <... symlink resumed>) = 0 [pid 5025] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5024] <... close resumed>) = 0 [pid 5029] set_robust_list(0x5555555f75e0, 24 [pid 5028] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] set_robust_list(0x5555555f75e0, 24 [pid 5025] close(3 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5031 ./strace-static-x86_64: Process 5031 attached [pid 5029] <... set_robust_list resumed>) = 0 [pid 5028] <... futex resumed>) = 0 [pid 5027] <... set_robust_list resumed>) = 0 [pid 5025] <... close resumed>) = 0 [pid 5029] chdir("./0" [pid 5028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5027] chdir("./0" [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5024] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5032 [pid 5031] set_robust_list(0x5555555f75e0, 24./strace-static-x86_64: Process 5032 attached ) = 0 [pid 5029] <... chdir resumed>) = 0 [pid 5028] <... mmap resumed>) = 0x7f7883f51000 [pid 5027] <... chdir resumed>) = 0 [pid 5032] set_robust_list(0x5555555f75e0, 24 [pid 5031] chdir("./0" [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5028] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5025] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5033 [pid 5032] <... set_robust_list resumed>) = 0 [pid 5031] <... chdir resumed>) = 0 [pid 5029] <... prctl resumed>) = 0 [pid 5028] <... mprotect resumed>) = 0 [pid 5027] <... prctl resumed>) = 0 [pid 5032] chdir("./0" [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] setpgid(0, 0 [pid 5028] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5027] setpgid(0, 0 [pid 5032] <... chdir resumed>) = 0 [pid 5031] <... prctl resumed>) = 0 [pid 5029] <... setpgid resumed>) = 0 [pid 5027] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5033 attached [pid 5032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5031] setpgid(0, 0 [pid 5029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5028] <... clone resumed>, parent_tid=[5034], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5034 [pid 5027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5033] set_robust_list(0x5555555f75e0, 24 [pid 5032] <... prctl resumed>) = 0 [pid 5031] <... setpgid resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5028] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] <... openat resumed>) = 3 [pid 5033] <... set_robust_list resumed>) = 0 [pid 5032] setpgid(0, 0 [pid 5031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5029] write(3, "1000", 4 [pid 5028] <... futex resumed>) = 0 [pid 5027] write(3, "1000", 4./strace-static-x86_64: Process 5034 attached [pid 5033] chdir("./0" [pid 5032] <... setpgid resumed>) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5029] <... write resumed>) = 4 [pid 5028] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5027] <... write resumed>) = 4 [pid 5034] set_robust_list(0x7f7883f719e0, 24 [pid 5033] <... chdir resumed>) = 0 [pid 5032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] write(3, "1000", 4 [pid 5029] close(3 [pid 5027] close(3 [pid 5034] <... set_robust_list resumed>) = 0 [pid 5033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5032] <... openat resumed>) = 3 [pid 5031] <... write resumed>) = 4 [pid 5029] <... close resumed>) = 0 [pid 5027] <... close resumed>) = 0 [pid 5034] memfd_create("syzkaller", 0 [pid 5033] <... prctl resumed>) = 0 [pid 5032] write(3, "1000", 4 [pid 5031] close(3 [pid 5029] symlink("/dev/binderfs", "./binderfs" [pid 5027] symlink("/dev/binderfs", "./binderfs" [pid 5029] <... symlink resumed>) = 0 [pid 5027] <... symlink resumed>) = 0 [pid 5029] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5027] <... futex resumed>) = 0 [pid 5029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5029] <... mmap resumed>) = 0x7f7883f51000 [pid 5027] <... mmap resumed>) = 0x7f7883f51000 [pid 5029] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5027] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5029] <... mprotect resumed>) = 0 [pid 5027] <... mprotect resumed>) = 0 [pid 5029] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5027] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5029] <... clone resumed>, parent_tid=[5035], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5035 [pid 5027] <... clone resumed>, parent_tid=[5036], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5036 [pid 5033] setpgid(0, 0) = 0 [pid 5032] <... write resumed>) = 4 [pid 5031] <... close resumed>) = 0 [pid 5029] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5032] close(3 [pid 5031] symlink("/dev/binderfs", "./binderfs" [pid 5029] <... futex resumed>) = 0 [pid 5027] <... futex resumed>) = 0 [pid 5033] <... openat resumed>) = 3 [pid 5032] <... close resumed>) = 0 [pid 5031] <... symlink resumed>) = 0 [pid 5029] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5027] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5036 attached [pid 5033] write(3, "1000", 4 [pid 5032] symlink("/dev/binderfs", "./binderfs" [pid 5031] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] set_robust_list(0x7f7883f719e0, 24 [pid 5033] <... write resumed>) = 4 [pid 5032] <... symlink resumed>) = 0 [pid 5031] <... futex resumed>) = 0 [pid 5036] <... set_robust_list resumed>) = 0 [pid 5033] close(3./strace-static-x86_64: Process 5035 attached [pid 5035] set_robust_list(0x7f7883f719e0, 24) = 0 [pid 5035] memfd_create("syzkaller", 0 [pid 5036] memfd_create("syzkaller", 0 [pid 5035] <... memfd_create resumed>) = 3 [pid 5033] <... close resumed>) = 0 [pid 5032] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5036] <... memfd_create resumed>) = 3 [pid 5035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5033] symlink("/dev/binderfs", "./binderfs" [pid 5032] <... futex resumed>) = 0 [pid 5031] <... mmap resumed>) = 0x7f7883f51000 [pid 5036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5035] <... mmap resumed>) = 0x7f787bb51000 [pid 5033] <... symlink resumed>) = 0 [pid 5032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5031] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5036] <... mmap resumed>) = 0x7f787bb51000 [pid 5034] <... memfd_create resumed>) = 3 [pid 5033] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] <... mmap resumed>) = 0x7f7883f51000 [pid 5031] <... mprotect resumed>) = 0 [pid 5033] <... futex resumed>) = 0 [pid 5032] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5031] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5032] <... mprotect resumed>) = 0 [pid 5033] <... mmap resumed>) = 0x7f7883f51000 [pid 5033] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5032] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5033] <... mprotect resumed>) = 0 [pid 5034] <... mmap resumed>) = 0x7f787bb51000 [pid 5033] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5031] <... clone resumed>, parent_tid=[5037], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5037 ./strace-static-x86_64: Process 5037 attached [pid 5037] set_robust_list(0x7f7883f719e0, 24) = 0 [pid 5037] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5031] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] <... clone resumed>, parent_tid=[5038], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5038 [pid 5032] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] <... futex resumed>) = 1 [pid 5033] <... clone resumed>, parent_tid=[5039], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5039 [pid 5032] <... futex resumed>) = 0 [pid 5031] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5033] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5033] <... futex resumed>) = 0 [pid 5033] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5039 attached [pid 5039] set_robust_list(0x7f7883f719e0, 24) = 0 [ 39.548962][ T5034] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5034 'syz-executor106' [pid 5039] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5038 attached ) = 3 [pid 5039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5038] set_robust_list(0x7f7883f719e0, 24 [pid 5039] <... mmap resumed>) = 0x7f787bb51000 [pid 5038] <... set_robust_list resumed>) = 0 [pid 5037] <... futex resumed>) = 0 [pid 5037] memfd_create("syzkaller", 0 [pid 5038] memfd_create("syzkaller", 0) = 3 [pid 5038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5037] <... memfd_create resumed>) = 3 [pid 5038] <... mmap resumed>) = 0x7f787bb51000 [pid 5037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f787bb51000 [pid 5035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5035] <... write resumed>) = 16777216 [pid 5035] munmap(0x7f787bb51000, 16777216 [pid 5038] <... write resumed>) = 16777216 [pid 5035] <... munmap resumed>) = 0 [pid 5035] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5035] ioctl(4, LOOP_SET_FD, 3 [pid 5034] <... write resumed>) = 16777216 [pid 5034] munmap(0x7f787bb51000, 16777216) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5034] ioctl(4, LOOP_SET_FD, 3 [pid 5036] <... write resumed>) = 16777216 [pid 5035] <... ioctl resumed>) = 0 [pid 5034] <... ioctl resumed>) = 0 [pid 5038] munmap(0x7f787bb51000, 16777216 [pid 5035] close(3) = 0 [pid 5035] mkdir("./bus", 0777) = 0 [pid 5035] mount("/dev/loop0", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5034] close(3) = 0 [pid 5034] mkdir("./bus", 0777) = 0 [pid 5034] mount("/dev/loop1", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5039] <... write resumed>) = 16777216 [pid 5039] munmap(0x7f787bb51000, 16777216 [pid 5038] <... munmap resumed>) = 0 [pid 5036] munmap(0x7f787bb51000, 16777216 [pid 5039] <... munmap resumed>) = 0 [pid 5038] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5037] <... write resumed>) = 16777216 [pid 5037] munmap(0x7f787bb51000, 16777216 [pid 5039] openat(AT_FDCWD, "/dev/loop5", O_RDWR [ 40.140104][ T5035] loop0: detected capacity change from 0 to 32768 [ 40.156864][ T5034] loop1: detected capacity change from 0 to 32768 [ 40.170719][ T5035] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor106 (5035) [pid 5038] <... openat resumed>) = 4 [pid 5036] <... munmap resumed>) = 0 [pid 5039] <... openat resumed>) = 4 [pid 5038] ioctl(4, LOOP_SET_FD, 3 [pid 5037] <... munmap resumed>) = 0 [pid 5036] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5039] ioctl(4, LOOP_SET_FD, 3 [pid 5034] <... mount resumed>) = -1 EEXIST (File exists) [pid 5034] ioctl(4, LOOP_CLR_FD [pid 5037] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5037] ioctl(4, LOOP_SET_FD, 3 [pid 5036] <... openat resumed>) = 4 [pid 5037] <... ioctl resumed>) = 0 [pid 5037] close(3) = 0 [pid 5037] mkdir("./bus", 0777) = 0 [pid 5037] mount("/dev/loop3", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5038] <... ioctl resumed>) = 0 [pid 5038] close(3 [pid 5039] <... ioctl resumed>) = 0 [pid 5038] <... close resumed>) = 0 [ 40.205550][ T5034] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor106 (5034) [ 40.213459][ T5038] loop4: detected capacity change from 0 to 32768 [ 40.223157][ T5037] loop3: detected capacity change from 0 to 32768 [ 40.223271][ T5039] loop5: detected capacity change from 0 to 32768 [ 40.237013][ T5035] BTRFS info (device loop0): using crc32c (crc32c-intel) checksum algorithm [ 40.237730][ T5036] loop2: detected capacity change from 0 to 32768 [pid 5036] ioctl(4, LOOP_SET_FD, 3 [pid 5039] close(3 [pid 5038] mkdir("./bus", 0777 [pid 5039] <... close resumed>) = 0 [pid 5038] <... mkdir resumed>) = 0 [pid 5039] mkdir("./bus", 0777) = 0 [pid 5038] mount("/dev/loop4", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5039] mount("/dev/loop5", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5036] <... ioctl resumed>) = 0 [pid 5036] close(3) = 0 [pid 5036] mkdir("./bus", 0777) = 0 [pid 5036] mount("/dev/loop2", "./bus", "btrfs", MS_DIRSYNC, "ref_verify,nossd,inode_cache,compress-force,space_cache=v2,degraded,noacl," [pid 5037] <... mount resumed>) = -1 EEXIST (File exists) [pid 5037] ioctl(4, LOOP_CLR_FD [pid 5039] <... mount resumed>) = -1 EEXIST (File exists) [ 40.246100][ T5037] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor106 (5037) [ 40.262319][ T5035] BTRFS info (device loop0): doing ref verification [ 40.264838][ T5039] BTRFS warning: duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor106 (5039) [ 40.270057][ T5035] BTRFS warning (device loop0): the 'inode_cache' option is deprecated and has no effect since 5.11 [ 40.283531][ T5038] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor106 (5038) [pid 5039] ioctl(4, LOOP_CLR_FD [pid 5038] <... mount resumed>) = -1 EEXIST (File exists) [pid 5038] ioctl(4, LOOP_CLR_FD [pid 5037] <... ioctl resumed>) = 0 [pid 5037] close(4) = 0 [pid 5036] <... mount resumed>) = -1 EEXIST (File exists) [pid 5037] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] ioctl(4, LOOP_CLR_FD [pid 5037] <... futex resumed>) = 1 [pid 5031] <... futex resumed>) = 0 [pid 5037] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5031] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 40.291244][ T5035] BTRFS info (device loop0): force zlib compression, level 3 [ 40.291267][ T5035] BTRFS info (device loop0): allowing degraded mounts [ 40.291280][ T5035] BTRFS info (device loop0): using free space tree [ 40.334407][ T5036] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor106 (5036) [pid 5037] <... openat resumed>) = 3 [pid 5031] <... futex resumed>) = 0 [pid 5037] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... futex resumed>) = 0 [pid 5031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5031] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5031] <... futex resumed>) = 0 [pid 5037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5031] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5035] <... mount resumed>) = 0 [pid 5035] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5035] chdir("./bus") = 0 [pid 5035] ioctl(4, LOOP_CLR_FD) = 0 [pid 5035] close(4) = 0 [ 40.411670][ T5035] BTRFS info (device loop0): auto enabling async discard [pid 5035] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5029] <... futex resumed>) = 0 [pid 5035] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5029] <... futex resumed>) = 0 [pid 5035] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5029] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] <... openat resumed>) = 4 [pid 5035] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5029] <... futex resumed>) = 0 [pid 5035] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5029] <... futex resumed>) = 0 [pid 5035] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5029] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5039] <... ioctl resumed>) = 0 [pid 5038] <... ioctl resumed>) = 0 [pid 5036] <... ioctl resumed>) = 0 [pid 5036] close(4 [pid 5039] close(4) = 0 [pid 5039] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] close(4 [pid 5036] <... close resumed>) = 0 [pid 5039] <... futex resumed>) = 1 [pid 5038] <... close resumed>) = 0 [pid 5036] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] <... futex resumed>) = 0 [pid 5039] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... futex resumed>) = 1 [pid 5033] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] <... futex resumed>) = 0 [pid 5039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5038] <... futex resumed>) = 1 [pid 5036] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5033] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = 0 [pid 5027] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5038] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5033] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5032] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] <... futex resumed>) = 0 [pid 5039] <... openat resumed>) = 3 [pid 5038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5034] <... ioctl resumed>) = 0 [pid 5032] <... futex resumed>) = 0 [pid 5027] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5036] <... openat resumed>) = 3 [pid 5032] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] <... futex resumed>) = 1 [pid 5038] <... openat resumed>) = 3 [pid 5036] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] <... futex resumed>) = 0 [pid 5039] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... futex resumed>) = 1 [pid 5033] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] <... futex resumed>) = 0 [pid 5039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5038] <... futex resumed>) = 1 [pid 5036] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5033] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = 0 [pid 5027] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5038] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5033] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5032] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] <... futex resumed>) = 0 [pid 5038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5032] <... futex resumed>) = 0 [pid 5027] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5034] close(4) = 0 [pid 5032] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5028] <... futex resumed>) = 0 [pid 5034] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5028] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5028] <... futex resumed>) = 0 [pid 5034] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5028] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] <... openat resumed>) = 3 [pid 5034] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5028] <... futex resumed>) = 0 [pid 5034] futex(0x7f788404f7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5028] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5028] <... futex resumed>) = 0 [pid 5034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 [pid 5028] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5027] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5032] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5028] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5029] exit_group(0) = ? [pid 5035] <... write resumed>) = ? [pid 5035] +++ exited with 0 +++ [pid 5029] +++ exited with 0 +++ [pid 5020] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5029, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=18 /* 0.18 s */} --- [pid 5020] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5020] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5020] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5031] exit_group(0 [pid 5020] fstat(3, [pid 5031] <... exit_group resumed>) = ? [pid 5020] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5020] getdents64(3, [pid 5037] <... write resumed>) = ? [pid 5020] <... getdents64 resumed>0x5555555f8620 /* 4 entries */, 32768) = 104 [pid 5020] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5037] +++ exited with 0 +++ [pid 5031] +++ exited with 0 +++ [pid 5023] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5031, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=34 /* 0.34 s */} --- [pid 5023] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5023] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5023] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5023] getdents64(3, 0x5555555f8620 /* 5 entries */, 32768) = 160 [pid 5023] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5023] lstat("./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5023] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5023] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5023] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5023] getdents64(4, 0x555555600660 /* 2 entries */, 32768) = 48 [pid 5023] getdents64(4, 0x555555600660 /* 0 entries */, 32768) = 0 [pid 5023] close(4) = 0 [pid 5023] rmdir("./0/bus") = 0 [pid 5023] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5023] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5023] unlink("./0/binderfs") = 0 [pid 5023] umount2("./0/blkio.bfq.io_service_time_recursive", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5023] lstat("./0/blkio.bfq.io_service_time_recursive", {st_mode=S_IFREG|000, st_size=6721536, ...}) = 0 [pid 5023] unlink("./0/blkio.bfq.io_service_time_recursive" [pid 5033] exit_group(0 [pid 5039] <... write resumed>) = ? [pid 5033] <... exit_group resumed>) = ? [pid 5039] +++ exited with 0 +++ [pid 5033] +++ exited with 0 +++ [pid 5025] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5033, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5025] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5025] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5025] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5025] getdents64(3, 0x5555555f8620 /* 5 entries */, 32768) = 160 [pid 5025] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5027] exit_group(0 [pid 5025] lstat("./0/bus", [pid 5027] <... exit_group resumed>) = ? [pid 5025] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5036] <... write resumed>) = ? [pid 5025] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5025] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5032] exit_group(0 [pid 5025] fstat(4, [pid 5032] <... exit_group resumed>) = ? [pid 5025] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5025] getdents64(4, [pid 5038] <... write resumed>) = ? [pid 5025] <... getdents64 resumed>0x555555600660 /* 2 entries */, 32768) = 48 [pid 5025] getdents64(4, 0x555555600660 /* 0 entries */, 32768) = 0 [pid 5036] +++ exited with 0 +++ [pid 5027] +++ exited with 0 +++ [pid 5025] close(4) = 0 [pid 5022] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5027, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=36 /* 0.36 s */} --- [pid 5025] rmdir("./0/bus" [pid 5022] restart_syscall(<... resuming interrupted clone ...> [pid 5025] <... rmdir resumed>) = 0 [pid 5022] <... restart_syscall resumed>) = 0 [pid 5038] +++ exited with 0 +++ [pid 5032] +++ exited with 0 +++ [pid 5025] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5023] <... unlink resumed>) = 0 [pid 5025] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5024] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5032, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=40 /* 0.40 s */} --- [pid 5023] getdents64(3, [pid 5025] lstat("./0/binderfs", [pid 5023] <... getdents64 resumed>0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5022] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5025] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5023] close(3 [pid 5022] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5025] unlink("./0/binderfs" [pid 5023] <... close resumed>) = 0 [pid 5022] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5025] <... unlink resumed>) = 0 [pid 5023] rmdir("./0" [pid 5022] <... openat resumed>) = 3 [pid 5025] umount2("./0/blkio.bfq.io_service_time_recursive", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] fstat(3, [pid 5028] exit_group(0 [pid 5025] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5024] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5023] <... rmdir resumed>) = 0 [pid 5022] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5034] <... write resumed>) = ? [pid 5028] <... exit_group resumed>) = ? [pid 5025] lstat("./0/blkio.bfq.io_service_time_recursive", [pid 5024] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5023] mkdir("./1", 0777 [pid 5022] getdents64(3, [pid 5034] +++ exited with 0 +++ [pid 5025] <... lstat resumed>{st_mode=S_IFREG|000, st_size=6180864, ...}) = 0 [pid 5024] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5022] <... getdents64 resumed>0x5555555f8620 /* 5 entries */, 32768) = 160 [pid 5025] unlink("./0/blkio.bfq.io_service_time_recursive" [pid 5024] <... openat resumed>) = 3 [pid 5022] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5028] +++ exited with 0 +++ [pid 5024] fstat(3, [pid 5023] <... mkdir resumed>) = 0 [pid 5022] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5024] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5022] lstat("./0/bus", [pid 5021] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5028, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=34 /* 0.34 s */} --- [pid 5024] getdents64(3, [pid 5023] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5022] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5024] <... getdents64 resumed>0x5555555f8620 /* 5 entries */, 32768) = 160 [pid 5023] <... openat resumed>) = 3 [pid 5022] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5024] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5024] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5022] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5024] lstat("./0/bus", [pid 5023] ioctl(3, LOOP_CLR_FD [pid 5022] <... openat resumed>) = 4 [pid 5024] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5022] fstat(4, [pid 5024] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5023] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5024] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5023] close(3 [pid 5022] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5024] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5023] <... close resumed>) = 0 [pid 5024] <... openat resumed>) = 4 [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] getdents64(4, [pid 5021] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5024] fstat(4, [pid 5022] <... getdents64 resumed>0x555555600660 /* 2 entries */, 32768) = 48 [pid 5024] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5023] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5057 [pid 5021] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5024] getdents64(4, [pid 5022] getdents64(4, [pid 5021] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5057 attached [pid 5024] <... getdents64 resumed>0x555555600660 /* 2 entries */, 32768) = 48 [pid 5022] <... getdents64 resumed>0x555555600660 /* 0 entries */, 32768) = 0 [pid 5057] set_robust_list(0x5555555f75e0, 24 [pid 5024] getdents64(4, [pid 5021] <... openat resumed>) = 3 [pid 5022] close(4 [pid 5057] <... set_robust_list resumed>) = 0 [pid 5024] <... getdents64 resumed>0x555555600660 /* 0 entries */, 32768) = 0 [pid 5021] fstat(3, [pid 5024] close(4 [pid 5022] <... close resumed>) = 0 [pid 5021] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5024] <... close resumed>) = 0 [pid 5022] rmdir("./0/bus" [pid 5021] getdents64(3, [pid 5057] chdir("./1" [pid 5025] <... unlink resumed>) = 0 [pid 5024] rmdir("./0/bus" [pid 5022] <... rmdir resumed>) = 0 [pid 5021] <... getdents64 resumed>0x5555555f8620 /* 5 entries */, 32768) = 160 [pid 5057] <... chdir resumed>) = 0 [pid 5025] getdents64(3, [pid 5024] <... rmdir resumed>) = 0 [pid 5022] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5021] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5025] <... getdents64 resumed>0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5024] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5021] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... prctl resumed>) = 0 [pid 5025] close(3 [pid 5024] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5022] lstat("./0/binderfs", [pid 5021] lstat("./0/bus", [pid 5057] setpgid(0, 0 [pid 5025] <... close resumed>) = 0 [pid 5024] lstat("./0/binderfs", [pid 5022] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5021] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5057] <... setpgid resumed>) = 0 [pid 5025] rmdir("./0" [pid 5024] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5022] unlink("./0/binderfs" [pid 5021] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5025] <... rmdir resumed>) = 0 [pid 5024] unlink("./0/binderfs" [pid 5022] <... unlink resumed>) = 0 [pid 5021] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... openat resumed>) = 3 [pid 5025] mkdir("./1", 0777 [pid 5024] <... unlink resumed>) = 0 [pid 5022] umount2("./0/blkio.bfq.io_service_time_recursive", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5021] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] write(3, "1000", 4 [pid 5025] <... mkdir resumed>) = 0 [pid 5024] umount2("./0/blkio.bfq.io_service_time_recursive", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5021] <... openat resumed>) = 4 [pid 5057] <... write resumed>) = 4 [pid 5025] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5024] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5022] lstat("./0/blkio.bfq.io_service_time_recursive", [pid 5021] fstat(4, [pid 5057] close(3 [pid 5025] <... openat resumed>) = 3 [pid 5024] lstat("./0/blkio.bfq.io_service_time_recursive", [pid 5022] <... lstat resumed>{st_mode=S_IFREG|000, st_size=8437760, ...}) = 0 [pid 5021] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5057] <... close resumed>) = 0 [pid 5025] ioctl(3, LOOP_CLR_FD [pid 5024] <... lstat resumed>{st_mode=S_IFREG|000, st_size=8867840, ...}) = 0 [pid 5022] unlink("./0/blkio.bfq.io_service_time_recursive" [pid 5021] getdents64(4, [pid 5057] symlink("/dev/binderfs", "./binderfs" [pid 5025] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5024] unlink("./0/blkio.bfq.io_service_time_recursive" [pid 5021] <... getdents64 resumed>0x555555600660 /* 2 entries */, 32768) = 48 [pid 5057] <... symlink resumed>) = 0 [pid 5025] close(3 [pid 5021] getdents64(4, [pid 5057] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5025] <... close resumed>) = 0 [pid 5021] <... getdents64 resumed>0x555555600660 /* 0 entries */, 32768) = 0 [pid 5057] <... futex resumed>) = 0 [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] close(4 [pid 5057] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5021] <... close resumed>) = 0 [pid 5057] <... mmap resumed>) = 0x7f7883f51000 [pid 5025] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5060 [pid 5021] rmdir("./0/bus" [pid 5057] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5021] <... rmdir resumed>) = 0 [pid 5057] <... mprotect resumed>) = 0 [pid 5021] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5021] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5021] lstat("./0/binderfs", [pid 5057] <... clone resumed>, parent_tid=[5061], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5061 [pid 5021] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5057] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5021] unlink("./0/binderfs" [pid 5057] <... futex resumed>) = 0 [pid 5021] <... unlink resumed>) = 0 [pid 5057] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5021] umount2("./0/blkio.bfq.io_service_time_recursive", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5021] lstat("./0/blkio.bfq.io_service_time_recursive", {st_mode=S_IFREG|000, st_size=6975488, ...}) = 0 [pid 5021] unlink("./0/blkio.bfq.io_service_time_recursive"./strace-static-x86_64: Process 5061 attached ./strace-static-x86_64: Process 5060 attached [pid 5060] set_robust_list(0x5555555f75e0, 24) = 0 [pid 5060] chdir("./1") = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] set_robust_list(0x7f7883f719e0, 24 [pid 5060] setpgid(0, 0) = 0 [pid 5061] <... set_robust_list resumed>) = 0 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1000", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] symlink("/dev/binderfs", "./binderfs" [pid 5061] memfd_create("syzkaller", 0 [pid 5060] <... symlink resumed>) = 0 [pid 5061] <... memfd_create resumed>) = 3 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5060] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... mmap resumed>) = 0x7f787bb51000 [pid 5060] <... futex resumed>) = 0 [pid 5060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7883f51000 [pid 5060] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5060] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5063], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5063 [pid 5060] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5060] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5063 attached [pid 5063] set_robust_list(0x7f7883f719e0, 24) = 0 [pid 5063] memfd_create("syzkaller", 0) = 3 [pid 5063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f787bb51000 [pid 5063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5022] <... unlink resumed>) = 0 [pid 5022] getdents64(3, 0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5022] close(3) = 0 [pid 5022] rmdir("./0") = 0 [pid 5022] mkdir("./1", 0777) = 0 [pid 5021] <... unlink resumed>) = 0 [pid 5022] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5022] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5021] getdents64(3, [pid 5022] close(3 [pid 5021] <... getdents64 resumed>0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5022] <... close resumed>) = 0 [pid 5021] close(3) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] rmdir("./0") = 0 [pid 5021] mkdir("./1", 0777) = 0 [pid 5022] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5065 [pid 5021] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5021] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5021] close(3./strace-static-x86_64: Process 5065 attached ) = 0 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] set_robust_list(0x5555555f75e0, 24 [pid 5021] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5066 [pid 5065] <... set_robust_list resumed>) = 0 [pid 5065] chdir("./1") = 0 [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] setpgid(0, 0) = 0 [pid 5024] <... unlink resumed>) = 0 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1000", 4./strace-static-x86_64: Process 5066 attached ) = 4 [pid 5066] set_robust_list(0x5555555f75e0, 24 [pid 5065] close(3 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5066] chdir("./1" [pid 5065] symlink("/dev/binderfs", "./binderfs" [pid 5066] <... chdir resumed>) = 0 [pid 5065] <... symlink resumed>) = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5065] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5066] <... prctl resumed>) = 0 [pid 5065] <... futex resumed>) = 0 [pid 5066] setpgid(0, 0 [pid 5065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5066] <... setpgid resumed>) = 0 [pid 5065] <... mmap resumed>) = 0x7f7883f51000 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5065] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5066] <... openat resumed>) = 3 [pid 5065] <... mprotect resumed>) = 0 [pid 5024] getdents64(3, [pid 5066] write(3, "1000", 4 [pid 5065] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5024] <... getdents64 resumed>0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5066] <... write resumed>) = 4 [pid 5024] close(3 [pid 5066] close(3 [pid 5065] <... clone resumed>, parent_tid=[5067], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5067 [pid 5024] <... close resumed>) = 0 [pid 5066] <... close resumed>) = 0 [pid 5065] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5024] rmdir("./0" [pid 5066] symlink("/dev/binderfs", "./binderfs" [pid 5065] <... futex resumed>) = 0 [pid 5024] <... rmdir resumed>) = 0 [pid 5066] <... symlink resumed>) = 0 [pid 5065] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5024] mkdir("./1", 0777 [pid 5066] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5024] <... mkdir resumed>) = 0 [pid 5066] <... futex resumed>) = 0 [pid 5024] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5024] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5067 attached [pid 5066] <... mmap resumed>) = 0x7f7883f51000 [pid 5024] ioctl(3, LOOP_CLR_FD [pid 5067] set_robust_list(0x7f7883f719e0, 24 [pid 5066] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE [pid 5024] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5067] <... set_robust_list resumed>) = 0 [pid 5066] <... mprotect resumed>) = 0 [pid 5024] close(3 [pid 5067] memfd_create("syzkaller", 0 [pid 5066] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5024] <... close resumed>) = 0 [pid 5067] <... memfd_create resumed>) = 3 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5066] <... clone resumed>, parent_tid=[5068], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5068 [pid 5067] <... mmap resumed>) = 0x7f787bb51000 [pid 5066] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5024] <... clone resumed>, child_tidptr=0x5555555f75d0) = 5069 [pid 5066] <... futex resumed>) = 0 [pid 5066] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x5555555f75e0, 24) = 0 [pid 5069] chdir("./1") = 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5068 attached [pid 5069] setpgid(0, 0) = 0 [pid 5068] set_robust_list(0x7f7883f719e0, 24 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... set_robust_list resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] memfd_create("syzkaller", 0 [pid 5069] write(3, "1000", 4 [pid 5068] <... memfd_create resumed>) = 3 [pid 5069] <... write resumed>) = 4 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] close(3 [pid 5068] <... mmap resumed>) = 0x7f787bb51000 [pid 5069] <... close resumed>) = 0 [pid 5069] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] futex(0x7f788404f7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7883f51000 [pid 5069] mprotect(0x7f7883f52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5069] clone(child_stack=0x7f7883f713f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5070], tls=0x7f7883f71700, child_tidptr=0x7f7883f719d0) = 5070 [pid 5069] futex(0x7f788404f7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7f788404f7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x7f7883f719e0, 24) = 0 [pid 5070] memfd_create("syzkaller", 0) = 3 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f787bb51000 [pid 5020] <... umount2 resumed>) = 0 [pid 5020] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5020] lstat("./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5020] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5020] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5020] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5020] getdents64(4, 0x555555600660 /* 2 entries */, 32768) = 48 [pid 5020] getdents64(4, 0x555555600660 /* 0 entries */, 32768) = 0 [pid 5063] <... write resumed>) = 16777216 [pid 5020] close(4) = 0 [pid 5020] rmdir("./0/bus") = 0 [pid 5020] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5020] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5020] unlink("./0/binderfs") = 0 [pid 5020] getdents64(3, 0x5555555f8620 /* 0 entries */, 32768) = 0 [pid 5020] close(3) = 0 [pid 5020] rmdir("./0") = 0 [pid 5020] mkdir("./1", 0777) = 0 [pid 5020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5020] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5020] close(3) = 0 [pid 5020] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555555f75d0) = 5071 [pid 5063] munmap(0x7f787bb51000, 16777216./strace-static-x86_64: Process 5071 attached