./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3212007379 <...> Warning: Permanently added '10.128.1.66' (ED25519) to the list of known hosts. execve("./syz-executor3212007379", ["./syz-executor3212007379"], 0x7fffa18950b0 /* 10 vars */) = 0 brk(NULL) = 0x555571b2b000 brk(0x555571b2bd40) = 0x555571b2bd40 arch_prctl(ARCH_SET_FS, 0x555571b2b3c0) = 0 set_tid_address(0x555571b2b690) = 5248 set_robust_list(0x555571b2b6a0, 24) = 0 rseq(0x555571b2bce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3212007379", 4096) = 28 getrandom("\xba\x5e\x7b\x31\x2f\x19\x30\xe3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555571b2bd40 brk(0x555571b4cd40) = 0x555571b4cd40 brk(0x555571b4d000) = 0x555571b4d000 mprotect(0x7f4212d14000, 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 5249 attached [pid 5249] set_robust_list(0x555571b2b6a0, 24 [pid 5248] <... clone resumed>, child_tidptr=0x555571b2b690) = 5249 [pid 5249] <... set_robust_list resumed>) = 0 [pid 5248] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5250 attached [pid 5249] mkdir("./syzkaller.nriheT", 0700 [pid 5250] set_robust_list(0x555571b2b6a0, 24 [pid 5248] <... clone resumed>, child_tidptr=0x555571b2b690) = 5250 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5249] <... mkdir resumed>) = 0 [pid 5248] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5249] chmod("./syzkaller.nriheT", 0777 [pid 5250] mkdir("./syzkaller.JUSTFr", 0700) = 0 [pid 5249] <... chmod resumed>) = 0 [pid 5250] chmod("./syzkaller.JUSTFr", 0777./strace-static-x86_64: Process 5251 attached [pid 5248] <... clone resumed>, child_tidptr=0x555571b2b690) = 5251 [pid 5249] chdir("./syzkaller.nriheT" [pid 5248] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... chmod resumed>) = 0 [pid 5251] set_robust_list(0x555571b2b6a0, 24 [pid 5249] <... chdir resumed>) = 0 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5250] chdir("./syzkaller.JUSTFr" [pid 5249] mkdir("./0", 0777./strace-static-x86_64: Process 5252 attached [pid 5251] mkdir("./syzkaller.Ack4Ab", 0700 [pid 5248] <... clone resumed>, child_tidptr=0x555571b2b690) = 5252 [pid 5252] set_robust_list(0x555571b2b6a0, 24 [pid 5248] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] <... set_robust_list resumed>) = 0 [pid 5252] mkdir("./syzkaller.bAngbN", 0700 [pid 5250] <... chdir resumed>) = 0 [pid 5249] <... mkdir resumed>) = 0 [pid 5251] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5253 attached [pid 5248] <... clone resumed>, child_tidptr=0x555571b2b690) = 5253 [pid 5253] set_robust_list(0x555571b2b6a0, 24 [pid 5252] <... mkdir resumed>) = 0 [pid 5251] chmod("./syzkaller.Ack4Ab", 0777 [pid 5250] mkdir("./0", 0777 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5253] <... set_robust_list resumed>) = 0 [pid 5252] chmod("./syzkaller.bAngbN", 0777) = 0 [pid 5252] chdir("./syzkaller.bAngbN" [pid 5253] mkdir("./syzkaller.A9z5Ta", 0700 [pid 5252] <... chdir resumed>) = 0 [pid 5251] <... chmod resumed>) = 0 [pid 5250] <... mkdir resumed>) = 0 [pid 5249] <... openat resumed>) = 3 [pid 5252] mkdir("./0", 0777 [pid 5251] chdir("./syzkaller.Ack4Ab") = 0 [pid 5253] <... mkdir resumed>) = 0 [pid 5252] <... mkdir resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5249] ioctl(3, LOOP_CLR_FD [pid 5251] mkdir("./0", 0777 [pid 5249] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5253] chmod("./syzkaller.A9z5Ta", 0777 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5251] <... mkdir resumed>) = 0 [pid 5249] close(3) = 0 [pid 5253] <... chmod resumed>) = 0 [pid 5252] <... openat resumed>) = 3 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5250] <... openat resumed>) = 3 [pid 5253] chdir("./syzkaller.A9z5Ta" [pid 5251] <... openat resumed>) = 3 [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached [pid 5253] <... chdir resumed>) = 0 [pid 5251] ioctl(3, LOOP_CLR_FD [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5254] set_robust_list(0x555571b2b6a0, 24 [pid 5253] mkdir("./0", 0777 [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5251] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5250] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5252] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5253] <... mkdir resumed>) = 0 [pid 5252] close(3 [pid 5250] close(3 [pid 5252] <... close resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5256 attached [pid 5254] <... set_robust_list resumed>) = 0 [pid 5251] close(3 [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5254 [pid 5256] set_robust_list(0x555571b2b6a0, 24 [pid 5251] <... close resumed>) = 0 ./strace-static-x86_64: Process 5257 attached [pid 5256] <... set_robust_list resumed>) = 0 [pid 5254] chdir("./0" [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5257] set_robust_list(0x555571b2b6a0, 24 [pid 5256] chdir("./0" [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5258 attached [pid 5257] <... set_robust_list resumed>) = 0 [pid 5254] <... chdir resumed>) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5256 [pid 5257] chdir("./0" [pid 5256] <... chdir resumed>) = 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] ioctl(3, LOOP_CLR_FD [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5257 [pid 5258] set_robust_list(0x555571b2b6a0, 24 [pid 5257] <... chdir resumed>) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5254] <... prctl resumed>) = 0 [pid 5253] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5258 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] <... prctl resumed>) = 0 [pid 5258] chdir("./0" [pid 5257] <... prctl resumed>) = 0 [pid 5256] setpgid(0, 0 [pid 5254] setpgid(0, 0 [pid 5253] close(3 [pid 5258] <... chdir resumed>) = 0 [pid 5257] setpgid(0, 0 [pid 5256] <... setpgid resumed>) = 0 [pid 5254] <... setpgid resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... setpgid resumed>) = 0 [pid 5258] <... prctl resumed>) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5258] setpgid(0, 0 [pid 5257] <... openat resumed>) = 3 [pid 5256] <... openat resumed>) = 3 [pid 5254] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5259 attached [pid 5256] write(3, "1000", 4) = 4 [pid 5259] set_robust_list(0x555571b2b6a0, 24 [pid 5256] close(3) = 0 [pid 5259] <... set_robust_list resumed>) = 0 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5259] chdir("./0" [pid 5256] <... symlink resumed>) = 0 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5259 [pid 5258] <... setpgid resumed>) = 0 [pid 5257] write(3, "1000", 4 [pid 5259] <... chdir resumed>) = 0 [pid 5254] write(3, "1000", 4 [pid 5257] <... write resumed>) = 4 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] close(3 [pid 5254] <... write resumed>) = 4 [pid 5259] <... prctl resumed>) = 0 executing program [pid 5258] <... openat resumed>) = 3 [pid 5257] <... close resumed>) = 0 [pid 5256] write(1, "executing program\n", 18 [pid 5254] close(3 [pid 5259] setpgid(0, 0 [pid 5258] write(3, "1000", 4 [pid 5257] symlink("/dev/binderfs", "./binderfs" [pid 5256] <... write resumed>) = 18 [pid 5254] <... close resumed>) = 0 [pid 5259] <... setpgid resumed>) = 0 [pid 5258] <... write resumed>) = 4 [pid 5256] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... symlink resumed>) = 0 [pid 5254] symlink("/dev/binderfs", "./binderfs" [pid 5258] close(3 [pid 5259] <... openat resumed>) = 3 [pid 5258] <... close resumed>) = 0 [pid 5256] <... futex resumed>) = 0 [pid 5254] <... symlink resumed>) = 0 [pid 5258] symlink("/dev/binderfs", "./binderfs" [pid 5257] write(1, "executing program\n", 18 [pid 5254] write(1, "executing program\n", 18executing program executing program [pid 5258] <... symlink resumed>) = 0 [pid 5256] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5257] <... write resumed>) = 18 [pid 5259] write(3, "1000", 4executing program [pid 5258] write(1, "executing program\n", 18 [pid 5256] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5254] <... write resumed>) = 18 [pid 5257] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... write resumed>) = 4 [pid 5258] <... write resumed>) = 18 [pid 5257] <... futex resumed>) = 0 [pid 5256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5254] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] close(3 [pid 5258] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] <... futex resumed>) = 0 [pid 5259] <... close resumed>) = 0 [pid 5258] <... futex resumed>) = 0 [pid 5257] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5254] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5259] symlink("/dev/binderfs", "./binderfs" [pid 5258] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5256] <... mmap resumed>) = 0x7f4212c28000 [pid 5254] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5259] <... symlink resumed>) = 0 [pid 5258] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5258] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 5259] write(1, "executing program\n", 18 [pid 5258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5257] <... mmap resumed>) = 0x7f4212c28000 [pid 5256] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5259] <... write resumed>) = 18 [pid 5258] <... mmap resumed>) = 0x7f4212c28000 [pid 5257] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5256] <... mprotect resumed>) = 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5259] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5257] <... mprotect resumed>) = 0 [pid 5256] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5254] <... mmap resumed>) = 0x7f4212c28000 [pid 5259] <... futex resumed>) = 0 [pid 5258] <... mprotect resumed>) = 0 [pid 5257] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5256] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5259] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5258] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5257] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5254] <... mprotect resumed>) = 0 [pid 5259] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5260 attached [pid 5259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5258] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5261 attached [pid 5260] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5257] <... clone3 resumed> => {parent_tid=[5261]}, 88) = 5261 [pid 5256] <... clone3 resumed> => {parent_tid=[5260]}, 88) = 5260 [pid 5254] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 5262 attached [pid 5261] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5260] <... rseq resumed>) = 0 [pid 5259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5257] rt_sigprocmask(SIG_SETMASK, [], [pid 5256] rt_sigprocmask(SIG_SETMASK, [], [pid 5254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5261] <... rseq resumed>) = 0 [pid 5260] set_robust_list(0x7f4212c489a0, 24 [pid 5259] <... mmap resumed>) = 0x7f4212c28000 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5263 attached [pid 5262] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5261] set_robust_list(0x7f4212c489a0, 24 [pid 5260] <... set_robust_list resumed>) = 0 [pid 5259] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5258] <... clone3 resumed> => {parent_tid=[5262]}, 88) = 5262 [pid 5257] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... rseq resumed>) = 0 [pid 5261] <... set_robust_list resumed>) = 0 [pid 5259] <... mprotect resumed>) = 0 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], [pid 5256] <... futex resumed>) = 0 [pid 5263] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5262] set_robust_list(0x7f4212c489a0, 24 [pid 5261] rt_sigprocmask(SIG_SETMASK, [], [pid 5260] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5256] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... clone3 resumed> => {parent_tid=[5263]}, 88) = 5263 [pid 5263] <... rseq resumed>) = 0 [pid 5262] <... set_robust_list resumed>) = 0 [pid 5261] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5260] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5259] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5258] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] rt_sigprocmask(SIG_SETMASK, [], [pid 5263] set_robust_list(0x7f4212c489a0, 24 [pid 5262] rt_sigprocmask(SIG_SETMASK, [], [pid 5261] sync( [pid 5260] sync( [pid 5259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5258] <... futex resumed>) = 0 [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5264 attached [pid 5263] <... set_robust_list resumed>) = 0 [pid 5262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] rt_sigprocmask(SIG_SETMASK, [], [pid 5262] sync( [pid 5254] <... futex resumed>) = 0 [pid 5263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] sync( [pid 5264] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5259] <... clone3 resumed> => {parent_tid=[5264]}, 88) = 5264 [pid 5264] <... rseq resumed>) = 0 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], [pid 5264] set_robust_list(0x7f4212c489a0, 24 [pid 5259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5259] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5264] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] <... futex resumed>) = 0 [pid 5264] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5259] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] sync( [pid 5256] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5258] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5257] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5258] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... futex resumed>) = 0 [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... futex resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5257] <... mmap resumed>) = 0x7f4212c07000 [pid 5258] <... mmap resumed>) = 0x7f4212c07000 [pid 5254] <... futex resumed>) = 0 [pid 5258] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5257] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5258] <... mprotect resumed>) = 0 [pid 5257] <... mprotect resumed>) = 0 [pid 5256] <... mmap resumed>) = 0x7f4212c07000 [pid 5254] <... mmap resumed>) = 0x7f4212c07000 [pid 5257] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5256] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5254] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5259] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5258] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5257] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5256] <... mprotect resumed>) = 0 [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] <... mprotect resumed>) = 0 [pid 5259] <... futex resumed>) = 0 [pid 5258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5256] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5266 attached [pid 5259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5256] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5267 attached [pid 5259] <... mmap resumed>) = 0x7f4212c07000 [pid 5259] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5267] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5259] <... mprotect resumed>) = 0 [pid 5267] <... rseq resumed>) = 0 [pid 5266] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5259] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5258] <... clone3 resumed> => {parent_tid=[5266]}, 88) = 5266 [pid 5257] <... clone3 resumed> => {parent_tid=[5267]}, 88) = 5267 [pid 5256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5254] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5267] set_robust_list(0x7f4212c279a0, 24 [pid 5266] <... rseq resumed>) = 0 [pid 5259] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], [pid 5257] rt_sigprocmask(SIG_SETMASK, [], [pid 5254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5269 attached ./strace-static-x86_64: Process 5268 attached [pid 5267] <... set_robust_list resumed>) = 0 [pid 5266] set_robust_list(0x7f4212c279a0, 24 [pid 5259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5256] <... clone3 resumed> => {parent_tid=[5268]}, 88) = 5268 [pid 5269] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5268] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5267] rt_sigprocmask(SIG_SETMASK, [], [pid 5266] <... set_robust_list resumed>) = 0 [pid 5258] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] rt_sigprocmask(SIG_SETMASK, [], [pid 5254] <... clone3 resumed> => {parent_tid=[5269]}, 88) = 5269 ./strace-static-x86_64: Process 5270 attached [pid 5269] <... rseq resumed>) = 0 [pid 5268] <... rseq resumed>) = 0 [pid 5267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5266] rt_sigprocmask(SIG_SETMASK, [], [pid 5259] <... clone3 resumed> => {parent_tid=[5270]}, 88) = 5270 [pid 5258] <... futex resumed>) = 0 [pid 5257] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5254] rt_sigprocmask(SIG_SETMASK, [], [pid 5270] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5269] set_robust_list(0x7f4212c279a0, 24 [pid 5268] set_robust_list(0x7f4212c279a0, 24 [pid 5267] memfd_create("syzkaller", 0 [pid 5266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], [pid 5258] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5257] <... futex resumed>) = 0 [pid 5256] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] <... rseq resumed>) = 0 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5268] <... set_robust_list resumed>) = 0 [pid 5267] <... memfd_create resumed>) = 3 [pid 5266] memfd_create("syzkaller", 0 [pid 5259] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5256] <... futex resumed>) = 0 [pid 5254] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] set_robust_list(0x7f4212c279a0, 24 [pid 5269] rt_sigprocmask(SIG_SETMASK, [], [pid 5268] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5266] <... memfd_create resumed>) = 3 [pid 5259] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 0 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5267] <... mmap resumed>) = 0x7f420a800000 [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5259] <... futex resumed>) = 0 [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5270] rt_sigprocmask(SIG_SETMASK, [], [pid 5269] memfd_create("syzkaller", 0 [pid 5266] <... mmap resumed>) = 0x7f420a800000 [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5270] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5269] <... memfd_create resumed>) = 3 [pid 5268] memfd_create("syzkaller", 0 [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5268] <... memfd_create resumed>) = 3 [pid 5270] memfd_create("syzkaller", 0 [pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5270] <... memfd_create resumed>) = 3 [pid 5269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5268] <... mmap resumed>) = 0x7f420a800000 [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5270] <... mmap resumed>) = 0x7f420a800000 [pid 5268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5266] <... write resumed>) = 1048576 [pid 5269] <... write resumed>) = 1048576 [pid 5268] <... write resumed>) = 1048576 [pid 5266] munmap(0x7f420a800000, 138412032 [pid 5269] munmap(0x7f420a800000, 138412032 [pid 5268] munmap(0x7f420a800000, 138412032 [pid 5266] <... munmap resumed>) = 0 [pid 5269] <... munmap resumed>) = 0 [pid 5268] <... munmap resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5270] <... write resumed>) = 1048576 [pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5268] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5267] <... write resumed>) = 1048576 [pid 5270] munmap(0x7f420a800000, 138412032 [pid 5269] <... openat resumed>) = 4 [pid 5268] <... openat resumed>) = 4 [pid 5266] ioctl(4, LOOP_SET_FD, 3 [pid 5270] <... munmap resumed>) = 0 [pid 5269] ioctl(4, LOOP_SET_FD, 3 [pid 5268] ioctl(4, LOOP_SET_FD, 3 [pid 5267] munmap(0x7f420a800000, 138412032 [pid 5266] <... ioctl resumed>) = 0 [pid 5270] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5269] <... ioctl resumed>) = 0 [pid 5268] <... ioctl resumed>) = 0 [pid 5267] <... munmap resumed>) = 0 [pid 5266] close(3 [pid 5270] <... openat resumed>) = 4 [pid 5267] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5270] ioctl(4, LOOP_SET_FD, 3 [pid 5267] <... openat resumed>) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3 [pid 5266] <... close resumed>) = 0 [pid 5266] close(4) = 0 [pid 5266] mkdir("./bus", 0777) = 0 [pid 5268] close(3) = 0 [pid 5266] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5268] close(4) = 0 [ 140.959131][ T5266] loop2: detected capacity change from 0 to 2048 [ 140.967070][ T5269] loop0: detected capacity change from 0 to 2048 [ 140.974157][ T5268] loop3: detected capacity change from 0 to 2048 [ 140.993063][ T5270] loop4: detected capacity change from 0 to 2048 [ 141.003279][ T5267] loop1: detected capacity change from 0 to 2048 [pid 5268] mkdir("./bus", 0777) = 0 [pid 5268] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5267] <... ioctl resumed>) = 0 [pid 5270] <... ioctl resumed>) = 0 [pid 5270] close(3) = 0 [pid 5267] close(3 [pid 5270] close(4) = 0 [pid 5270] mkdir("./bus", 0777) = 0 [pid 5267] <... close resumed>) = 0 [pid 5267] close(4) = 0 [pid 5267] mkdir("./bus", 0777 [pid 5270] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5269] close(3 [pid 5267] <... mkdir resumed>) = 0 [pid 5269] <... close resumed>) = 0 [pid 5267] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5269] close(4) = 0 [pid 5269] mkdir("./bus", 0777) = 0 [pid 5269] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5268] <... mount resumed>) = 0 [pid 5268] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5268] chdir("./bus") = 0 [pid 5268] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5268] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5268] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5256] <... futex resumed>) = 0 [pid 5256] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5268] mkdir("./bus", 000 [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] <... mount resumed>) = 0 [pid 5266] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5266] chdir("./bus") = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 141.057751][ T5271] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 141.076632][ T5272] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5266] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5258] <... futex resumed>) = 0 [pid 5258] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5258] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... mount resumed>) = 0 [pid 5268] <... mkdir resumed>) = 0 [pid 5268] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5268] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] mkdir("./bus", 000 [pid 5256] <... futex resumed>) = 0 [pid 5256] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5268] chdir("./bus") = 0 [pid 5268] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5268] <... futex resumed>) = 0 [pid 5267] <... mount resumed>) = 0 [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... openat resumed>) = 3 [pid 5268] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] chdir("./bus" [pid 5267] <... openat resumed>) = 3 [pid 5256] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... chdir resumed>) = 0 [pid 5269] <... mount resumed>) = 0 [pid 5267] chdir("./bus" [pid 5270] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5269] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5268] <... futex resumed>) = 0 [pid 5267] <... chdir resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5270] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5269] <... openat resumed>) = 3 [pid 5268] mkdirat(AT_FDCWD, "./file1", 000 [pid 5267] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] chdir("./bus" [pid 5268] <... mkdirat resumed>) = 0 [pid 5267] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5266] <... mkdir resumed>) = 0 [pid 5258] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5270] <... futex resumed>) = 1 [pid 5269] <... chdir resumed>) = 0 [pid 5268] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5258] futex(0x7f4212d1a6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5268] <... futex resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5266] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... futex resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5269] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5268] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] <... futex resumed>) = 0 [pid 5259] <... futex resumed>) = 0 [pid 5258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5257] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] mkdir("./bus", 000 [pid 5269] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... mmap resumed>) = 0x7f4212be6000 [pid 5257] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 0 [pid 5270] <... mkdir resumed>) = 0 [ 141.100360][ T5275] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 141.102678][ T5274] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 141.123507][ T5273] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5269] <... futex resumed>) = 1 [pid 5268] chdir("./bus" [pid 5267] mkdir("./bus", 000 [pid 5258] mprotect(0x7f4212be7000, 131072, PROT_READ|PROT_WRITE [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 0 [pid 5270] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5268] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5267] <... mkdir resumed>) = 0 [pid 5258] <... mprotect resumed>) = 0 [pid 5254] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... futex resumed>) = 1 [pid 5269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5268] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5258] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5254] <... futex resumed>) = 0 [pid 5269] mkdir("./bus", 000 [pid 5258] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c06990, parent_tid=0x7f4212c06990, exit_signal=0, stack=0x7f4212be6000, stack_size=0x20300, tls=0x7f4212c066c0}./strace-static-x86_64: Process 5276 attached [pid 5269] <... mkdir resumed>) = 0 [pid 5268] <... futex resumed>) = 1 [pid 5267] <... futex resumed>) = 1 [pid 5259] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... futex resumed>) = 0 [pid 5276] rseq(0x7f4212c06fe0, 0x20, 0, 0x53053053 [pid 5269] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] <... futex resumed>) = 0 [pid 5258] <... clone3 resumed> => {parent_tid=[5276]}, 88) = 5276 [pid 5276] <... rseq resumed>) = 0 [pid 5276] set_robust_list(0x7f4212c069a0, 24 [pid 5269] <... futex resumed>) = 1 [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] rt_sigprocmask(SIG_SETMASK, [], [pid 5254] <... futex resumed>) = 0 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5270] chdir("./bus" [pid 5269] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5254] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] rt_sigprocmask(SIG_SETMASK, [], [pid 5270] <... chdir resumed>) = 0 [pid 5269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5258] futex(0x7f4212d1a6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = 0 [pid 5276] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5270] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] chdir("./bus" [pid 5267] <... futex resumed>) = 0 [pid 5258] <... futex resumed>) = 0 [pid 5257] <... futex resumed>) = 1 [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] chdir("./bus" [pid 5270] <... futex resumed>) = 1 [pid 5269] <... chdir resumed>) = 0 [pid 5267] chdir("./bus" [pid 5259] <... futex resumed>) = 0 [pid 5258] futex(0x7f4212d1a6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] <... chdir resumed>) = 0 [pid 5270] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... chdir resumed>) = 0 [pid 5259] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5276] futex(0x7f4212d1a6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5269] <... futex resumed>) = 0 [pid 5267] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5254] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... futex resumed>) = 1 [pid 5270] mkdirat(AT_FDCWD, "./file1", 000 [pid 5269] mkdirat(AT_FDCWD, "./file1", 000 [pid 5267] <... futex resumed>) = 1 [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5254] <... futex resumed>) = 0 [pid 5276] futex(0x7f4212d1a6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] <... mkdirat resumed>) = 0 [pid 5269] <... mkdirat resumed>) = 0 [pid 5267] mkdirat(AT_FDCWD, "./file1", 000 [pid 5258] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... mkdirat resumed>) = 0 [pid 5266] <... futex resumed>) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5270] <... futex resumed>) = 1 [pid 5266] mkdirat(AT_FDCWD, "./file1", 000 [pid 5259] <... futex resumed>) = 0 [pid 5258] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] chdir("./bus" [pid 5259] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5266] <... mkdirat resumed>) = 0 [pid 5259] <... futex resumed>) = 0 [pid 5254] <... futex resumed>) = 0 [pid 5270] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5267] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 0 [pid 5269] chdir("./bus" [pid 5267] <... futex resumed>) = 0 [pid 5266] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5267] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] <... futex resumed>) = 1 [pid 5258] <... futex resumed>) = 0 [pid 5257] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5266] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5258] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5269] <... futex resumed>) = 1 [pid 5267] chdir("./bus" [pid 5266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5258] <... futex resumed>) = 0 [pid 5257] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 0 [pid 5269] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5266] chdir("./bus" [pid 5258] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5267] <... futex resumed>) = 1 [pid 5266] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5267] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5266] <... futex resumed>) = 1 [pid 5258] <... futex resumed>) = 0 [ 141.529297][ T5271] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 141.541483][ T5271] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 141.553818][ T5271] Remounting filesystem read-only [ 141.561789][ T5272] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5266] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] exit_group(0 [pid 5270] <... futex resumed>) = ? [pid 5259] <... exit_group resumed>) = ? [pid 5270] +++ exited with 0 +++ [pid 5256] exit_group(0 [pid 5268] <... futex resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5256] <... exit_group resumed>) = ? [ 141.573397][ T5272] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 141.583745][ T5272] Remounting filesystem read-only [ 141.589584][ T5274] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 141.601514][ T5274] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 141.612119][ T5274] Remounting filesystem read-only [ 141.618657][ T5275] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5257] exit_group(0) = ? [pid 5267] <... futex resumed>) = ? [pid 5267] +++ exited with 0 +++ [pid 5258] exit_group(0 [pid 5254] exit_group(0 [pid 5276] <... futex resumed>) = ? [pid 5269] <... futex resumed>) = ? [pid 5266] <... futex resumed>) = ? [pid 5258] <... exit_group resumed>) = ? [pid 5254] <... exit_group resumed>) = ? [pid 5276] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ [pid 5266] +++ exited with 0 +++ [ 141.630387][ T5275] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 141.640913][ T5275] Remounting filesystem read-only [ 141.647413][ T5273] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 141.659410][ T5273] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [ 141.670738][ T5273] Remounting filesystem read-only [pid 5264] <... sync resumed>) = ? [pid 5263] <... sync resumed>) = ? [pid 5260] <... sync resumed>) = ? [pid 5261] <... sync resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5260] +++ exited with 0 +++ [pid 5259] +++ exited with 0 +++ [pid 5256] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ [pid 5262] <... sync resumed>) = ? [pid 5254] +++ exited with 0 +++ [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5262] +++ exited with 0 +++ [pid 5261] +++ exited with 0 +++ [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5253] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5253] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5253] <... openat resumed>) = 3 [pid 5252] <... openat resumed>) = 3 [pid 5251] <... restart_syscall resumed>) = 0 [pid 5253] newfstatat(3, "", [pid 5252] newfstatat(3, "", [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] getdents64(3, [pid 5253] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5253] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... openat resumed>) = 3 [pid 5253] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] newfstatat(3, "", [pid 5253] unlink("./0/binderfs" [pid 5252] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] getdents64(3, [pid 5252] unlink("./0/binderfs" [pid 5253] <... unlink resumed>) = 0 [pid 5252] <... unlink resumed>) = 0 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] <... openat resumed>) = 3 [pid 5251] unlink("./0/binderfs" [pid 5249] <... openat resumed>) = 3 [pid 5251] <... unlink resumed>) = 0 [pid 5251] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] newfstatat(3, "", [pid 5249] newfstatat(3, "", [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] getdents64(3, [pid 5249] getdents64(3, [pid 5252] <... umount2 resumed>) = 0 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5250] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5249] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5250] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] unlink("./0/binderfs" [pid 5249] unlink("./0/binderfs" [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... unlink resumed>) = 0 [pid 5249] <... unlink resumed>) = 0 [pid 5252] newfstatat(AT_FDCWD, "./0/bus", [pid 5250] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] <... umount2 resumed>) = 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5253] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] <... openat resumed>) = 4 [pid 5252] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] newfstatat(AT_FDCWD, "./0/bus", [pid 5252] getdents64(4, [pid 5251] <... umount2 resumed>) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] getdents64(4, [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... openat resumed>) = 4 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5253] newfstatat(4, "", [pid 5252] close(4 [pid 5251] newfstatat(AT_FDCWD, "./0/bus", [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] <... close resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] getdents64(4, [pid 5252] rmdir("./0/bus" [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5252] <... rmdir resumed>) = 0 [pid 5251] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [ 141.834379][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 141.834379][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 141.855624][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 141.866977][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5253] close(4) = 0 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] rmdir("./0/bus") = 0 [pid 5252] getdents64(3, [pid 5251] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] <... umount2 resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5253] getdents64(3, [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5251] <... openat resumed>) = 4 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5252] close(3 [pid 5251] newfstatat(4, "", [pid 5250] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] close(3 [pid 5252] <... close resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] <... close resumed>) = 0 [pid 5252] rmdir("./0" [pid 5251] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] rmdir("./0" [pid 5251] getdents64(4, [pid 5250] newfstatat(AT_FDCWD, "./0/bus", [pid 5249] newfstatat(AT_FDCWD, "./0/bus", [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... rmdir resumed>) = 0 [pid 5252] <... rmdir resumed>) = 0 [pid 5251] close(4 [pid 5250] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] <... openat resumed>) = 4 [pid 5249] <... openat resumed>) = 4 [pid 5250] newfstatat(4, "", [pid 5249] newfstatat(4, "", [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] getdents64(4, [pid 5249] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5249] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] getdents64(4, [pid 5249] close(4 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] <... close resumed>) = 0 [pid 5250] close(4) = 0 [pid 5249] rmdir("./0/bus" [pid 5252] mkdir("./1", 0777 [pid 5249] <... rmdir resumed>) = 0 [pid 5253] mkdir("./1", 0777 [pid 5252] <... mkdir resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5250] rmdir("./0/bus" [ 141.877329][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5251] rmdir("./0/bus" [pid 5253] <... mkdir resumed>) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5251] <... rmdir resumed>) = 0 [pid 5250] <... rmdir resumed>) = 0 [pid 5249] getdents64(3, [pid 5252] <... openat resumed>) = 3 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5251] getdents64(3, [pid 5250] getdents64(3, [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5252] <... ioctl resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5249] close(3 [pid 5253] ioctl(3, LOOP_CLR_FD [pid 5252] close(3 [pid 5250] close(3 [pid 5249] <... close resumed>) = 0 [pid 5253] <... ioctl resumed>) = 0 [pid 5251] close(3) = 0 [pid 5251] rmdir("./0") = 0 [pid 5251] mkdir("./1", 0777 [pid 5253] close(3 [pid 5252] <... close resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5249] rmdir("./0" [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] <... mkdir resumed>) = 0 [pid 5250] rmdir("./0" [pid 5249] <... rmdir resumed>) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5251] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5279 attached [pid 5250] <... rmdir resumed>) = 0 [pid 5249] mkdir("./1", 0777 [pid 5250] mkdir("./1", 0777 [pid 5251] <... ioctl resumed>) = 0 [pid 5251] close(3 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5279 [pid 5250] <... mkdir resumed>) = 0 [pid 5249] <... mkdir resumed>) = 0 [pid 5279] set_robust_list(0x555571b2b6a0, 24) = 0 [pid 5253] <... close resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5279] chdir("./1" [pid 5251] <... close resumed>) = 0 [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... openat resumed>) = 3 [pid 5249] <... openat resumed>) = 3 [pid 5279] <... chdir resumed>) = 0 [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5249] ioctl(3, LOOP_CLR_FD [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... ioctl resumed>) = 0 [pid 5249] <... ioctl resumed>) = 0 [pid 5279] <... prctl resumed>) = 0 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5280 [pid 5250] close(3 [pid 5249] close(3 [pid 5279] setpgid(0, 0./strace-static-x86_64: Process 5280 attached [pid 5280] set_robust_list(0x555571b2b6a0, 24) = 0 [pid 5280] chdir("./1") = 0 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5280] setpgid(0, 0) = 0 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5280] write(3, "1000", 4./strace-static-x86_64: Process 5281 attached [pid 5279] <... setpgid resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5281] set_robust_list(0x555571b2b6a0, 24 [pid 5280] <... write resumed>) = 4 [pid 5279] <... openat resumed>) = 3 [pid 5279] write(3, "1000", 4 [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5281 [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5281] <... set_robust_list resumed>) = 0 [pid 5280] close(3 [pid 5279] <... write resumed>) = 4 ./strace-static-x86_64: Process 5283 attached ./strace-static-x86_64: Process 5282 attached [pid 5281] chdir("./1" [pid 5280] <... close resumed>) = 0 [pid 5279] close(3 [pid 5282] set_robust_list(0x555571b2b6a0, 24 [pid 5279] <... close resumed>) = 0 [pid 5282] <... set_robust_list resumed>) = 0 [pid 5279] symlink("/dev/binderfs", "./binderfs" [pid 5283] set_robust_list(0x555571b2b6a0, 24 [pid 5282] chdir("./1" [pid 5281] <... chdir resumed>) = 0 [pid 5280] symlink("/dev/binderfs", "./binderfs" [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5283 [pid 5283] <... set_robust_list resumed>) = 0 [pid 5282] <... chdir resumed>) = 0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5280] <... symlink resumed>) = 0 [pid 5279] <... symlink resumed>) = 0 [pid 5283] chdir("./1" [pid 5281] <... prctl resumed>) = 0 [pid 5280] write(1, "executing program\n", 18executing program executing program [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5282 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5279] write(1, "executing program\n", 18 [pid 5282] <... prctl resumed>) = 0 [pid 5279] <... write resumed>) = 18 [pid 5283] <... chdir resumed>) = 0 [pid 5282] setpgid(0, 0 [pid 5281] setpgid(0, 0 [pid 5280] <... write resumed>) = 18 [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5282] <... setpgid resumed>) = 0 [pid 5281] <... setpgid resumed>) = 0 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = 0 [pid 5283] <... prctl resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5280] <... futex resumed>) = 0 [pid 5279] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5283] setpgid(0, 0 [pid 5282] <... openat resumed>) = 3 [pid 5280] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5279] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5283] <... setpgid resumed>) = 0 [pid 5280] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] write(3, "1000", 4 [pid 5280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5282] <... write resumed>) = 4 [pid 5281] <... openat resumed>) = 3 [pid 5280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5283] <... openat resumed>) = 3 [pid 5282] close(3 [pid 5281] write(3, "1000", 4 [pid 5280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5279] <... mmap resumed>) = 0x7f4212c28000 [pid 5282] <... close resumed>) = 0 [pid 5279] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5283] write(3, "1000", 4 [pid 5282] symlink("/dev/binderfs", "./binderfs" [pid 5281] <... write resumed>) = 4 [pid 5280] <... mmap resumed>) = 0x7f4212c28000 [pid 5279] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5283] <... write resumed>) = 4 [pid 5282] <... symlink resumed>) = 0 [pid 5281] close(3 [pid 5280] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5283] close(3 [pid 5281] <... close resumed>) = 0 [pid 5280] <... mprotect resumed>) = 0 [pid 5279] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5283] <... close resumed>) = 0 executing program [pid 5282] write(1, "executing program\n", 18 [pid 5281] symlink("/dev/binderfs", "./binderfs" [pid 5280] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5283] symlink("/dev/binderfs", "./binderfs" [pid 5282] <... write resumed>) = 18 [pid 5281] <... symlink resumed>) = 0 [pid 5280] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5279] <... clone3 resumed> => {parent_tid=[5284]}, 88) = 5284 [pid 5282] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5282] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5279] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5279] <... futex resumed>) = 0 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5282] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 5284 attached [pid 5283] <... symlink resumed>) = 0 [pid 5281] write(1, "executing program\n", 18 [pid 5280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5284] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5282] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5284] <... rseq resumed>) = 0 [pid 5282] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5285 attached executing program executing program ./strace-static-x86_64: Process 5286 attached [pid 5284] set_robust_list(0x7f4212c489a0, 24 [pid 5283] write(1, "executing program\n", 18 [pid 5282] <... clone3 resumed> => {parent_tid=[5285]}, 88) = 5285 [pid 5281] <... write resumed>) = 18 [pid 5286] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5283] <... write resumed>) = 18 [pid 5282] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... clone3 resumed> => {parent_tid=[5286]}, 88) = 5286 [pid 5286] <... rseq resumed>) = 0 [pid 5285] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5284] rt_sigprocmask(SIG_SETMASK, [], [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5280] rt_sigprocmask(SIG_SETMASK, [], [pid 5284] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5283] <... futex resumed>) = 0 [pid 5280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5284] sync( [pid 5283] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5286] set_robust_list(0x7f4212c489a0, 24 [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5286] <... set_robust_list resumed>) = 0 [pid 5283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5281] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5285] <... rseq resumed>) = 0 [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] set_robust_list(0x7f4212c489a0, 24 [pid 5282] <... futex resumed>) = 0 [pid 5285] <... set_robust_list resumed>) = 0 [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] rt_sigprocmask(SIG_SETMASK, [], [pid 5283] <... mmap resumed>) = 0x7f4212c28000 [pid 5286] rt_sigprocmask(SIG_SETMASK, [], [pid 5285] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5281] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5285] sync( [pid 5286] sync( [pid 5281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5279] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5279] <... futex resumed>) = 0 [pid 5281] <... mmap resumed>) = 0x7f4212c28000 [pid 5279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5283] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5279] <... mmap resumed>) = 0x7f4212c07000 [pid 5281] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5279] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5283] <... mprotect resumed>) = 0 [pid 5279] <... mprotect resumed>) = 0 [pid 5281] <... mprotect resumed>) = 0 [pid 5279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5288 attached [pid 5283] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5281] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5279] <... clone3 resumed> => {parent_tid=[5288]}, 88) = 5288 [pid 5288] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5279] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5289 attached [pid 5288] <... rseq resumed>) = 0 [pid 5283] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5279] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5288] set_robust_list(0x7f4212c279a0, 24 [pid 5281] <... clone3 resumed> => {parent_tid=[5289]}, 88) = 5289 [pid 5289] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5279] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... rseq resumed>) = 0 [pid 5283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5281] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5290 attached [pid 5289] set_robust_list(0x7f4212c489a0, 24 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5279] <... futex resumed>) = 0 [pid 5290] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5289] <... set_robust_list resumed>) = 0 [pid 5288] rt_sigprocmask(SIG_SETMASK, [], [pid 5286] <... sync resumed>) = 0 [pid 5285] <... sync resumed>) = 0 [pid 5284] <... sync resumed>) = 0 [pid 5283] <... clone3 resumed> => {parent_tid=[5290]}, 88) = 5290 [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] <... rseq resumed>) = 0 [pid 5289] rt_sigprocmask(SIG_SETMASK, [], [pid 5288] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] <... futex resumed>) = 0 [pid 5290] set_robust_list(0x7f4212c489a0, 24 [pid 5288] memfd_create("syzkaller", 0 [pid 5284] <... futex resumed>) = 0 [pid 5283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5290] <... set_robust_list resumed>) = 0 [pid 5289] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5288] <... memfd_create resumed>) = 3 [pid 5286] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 1 [pid 5284] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5280] <... futex resumed>) = 0 [pid 5290] rt_sigprocmask(SIG_SETMASK, [], [pid 5289] sync( [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5286] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] <... futex resumed>) = 0 [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5288] <... mmap resumed>) = 0x7f420a800000 [pid 5290] sync( [pid 5289] <... sync resumed>) = 0 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] <... futex resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5286] memfd_create("syzkaller", 0 [pid 5289] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] <... sync resumed>) = 0 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] memfd_create("syzkaller", 0 [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5281] <... futex resumed>) = 0 [pid 5285] <... memfd_create resumed>) = 3 [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5283] <... futex resumed>) = 0 [pid 5290] <... futex resumed>) = 0 [pid 5285] <... mmap resumed>) = 0x7f420a800000 [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] memfd_create("syzkaller", 0 [pid 5289] memfd_create("syzkaller", 0 [pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5286] <... memfd_create resumed>) = 3 [pid 5290] <... memfd_create resumed>) = 3 [pid 5289] <... memfd_create resumed>) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5290] <... mmap resumed>) = 0x7f420a800000 [pid 5289] <... mmap resumed>) = 0x7f420a800000 [pid 5286] <... mmap resumed>) = 0x7f420a800000 [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5288] <... write resumed>) = 1048576 [pid 5285] <... write resumed>) = 1048576 [pid 5286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5288] munmap(0x7f420a800000, 138412032) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3 [pid 5290] <... write resumed>) = 1048576 [pid 5285] munmap(0x7f420a800000, 138412032 [pid 5288] <... ioctl resumed>) = 0 [pid 5290] munmap(0x7f420a800000, 138412032 [pid 5289] <... write resumed>) = 1048576 [pid 5286] <... write resumed>) = 1048576 [pid 5285] <... munmap resumed>) = 0 [pid 5288] close(3 [pid 5286] munmap(0x7f420a800000, 138412032 [pid 5290] <... munmap resumed>) = 0 [pid 5289] munmap(0x7f420a800000, 138412032 [pid 5288] <... close resumed>) = 0 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5286] <... munmap resumed>) = 0 [pid 5285] <... openat resumed>) = 4 [pid 5290] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5288] close(4 [pid 5286] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5290] <... openat resumed>) = 4 [pid 5288] <... close resumed>) = 0 [pid 5286] <... openat resumed>) = 4 [pid 5285] ioctl(4, LOOP_SET_FD, 3 [pid 5288] mkdir("./bus", 0777 [pid 5286] ioctl(4, LOOP_SET_FD, 3 [pid 5288] <... mkdir resumed>) = 0 [pid 5286] <... ioctl resumed>) = 0 [pid 5290] ioctl(4, LOOP_SET_FD, 3 [pid 5289] <... munmap resumed>) = 0 [pid 5288] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5285] <... ioctl resumed>) = 0 [ 142.178474][ T5288] loop3: detected capacity change from 0 to 2048 [ 142.201507][ T5286] loop4: detected capacity change from 0 to 2048 [ 142.203514][ T5285] loop0: detected capacity change from 0 to 2048 [ 142.219707][ T5290] loop1: detected capacity change from 0 to 2048 [pid 5286] close(3 [pid 5285] close(3) = 0 [pid 5285] close(4 [pid 5289] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5285] <... close resumed>) = 0 [pid 5289] <... openat resumed>) = 4 [pid 5289] ioctl(4, LOOP_SET_FD, 3 [pid 5286] <... close resumed>) = 0 [pid 5289] <... ioctl resumed>) = 0 [pid 5286] close(4 [pid 5285] mkdir("./bus", 0777 [pid 5289] close(3) = 0 [pid 5289] close(4 [pid 5285] <... mkdir resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5289] mkdir("./bus", 0777) = 0 [pid 5289] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5286] <... close resumed>) = 0 [pid 5286] mkdir("./bus", 0777) = 0 [pid 5290] <... ioctl resumed>) = 0 [pid 5290] close(3 [pid 5285] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5290] <... close resumed>) = 0 [pid 5288] <... mount resumed>) = 0 [pid 5286] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5288] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5290] close(4 [pid 5288] <... openat resumed>) = 3 [pid 5290] <... close resumed>) = 0 [pid 5288] chdir("./bus" [pid 5290] mkdir("./bus", 0777 [pid 5288] <... chdir resumed>) = 0 [pid 5290] <... mkdir resumed>) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5290] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5288] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5288] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5279] <... futex resumed>) = 0 [pid 5288] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5279] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5279] <... futex resumed>) = 1 [ 142.228821][ T5289] loop2: detected capacity change from 0 to 2048 [ 142.237645][ T5291] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5284] mkdir("./bus", 000 [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5284] <... mkdir resumed>) = 0 [pid 5289] <... mount resumed>) = 0 [pid 5289] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5289] chdir("./bus") = 0 [pid 5289] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5284] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] mkdir("./bus", 000 [pid 5284] <... futex resumed>) = 1 [pid 5285] <... mount resumed>) = 0 [pid 5284] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5279] <... futex resumed>) = 0 [pid 5279] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5279] <... futex resumed>) = 0 [pid 5285] <... openat resumed>) = 3 [pid 5284] chdir("./bus" [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] chdir("./bus" [pid 5284] <... chdir resumed>) = 0 [pid 5285] <... chdir resumed>) = 0 [pid 5284] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5284] <... futex resumed>) = 1 [pid 5279] <... futex resumed>) = 0 [pid 5284] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5279] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5279] <... futex resumed>) = 0 [pid 5285] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] mkdirat(AT_FDCWD, "./file1", 000 [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 142.277942][ T5292] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 142.292574][ T5293] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 142.306852][ T5294] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] <... mount resumed>) = 0 [pid 5289] <... mkdir resumed>) = 0 [pid 5286] <... mount resumed>) = 0 [pid 5285] <... futex resumed>) = 1 [pid 5284] <... mkdirat resumed>) = 0 [pid 5282] <... futex resumed>) = 0 [pid 5285] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] <... futex resumed>) = 0 [pid 5285] mkdir("./bus", 000 [pid 5290] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5290] <... openat resumed>) = 3 [pid 5289] <... futex resumed>) = 1 [pid 5286] <... openat resumed>) = 3 [pid 5281] <... futex resumed>) = 0 [pid 5290] chdir("./bus") = 0 [pid 5289] chdir("./bus" [pid 5286] chdir("./bus" [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5289] <... chdir resumed>) = 0 [pid 5286] <... chdir resumed>) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5289] <... futex resumed>) = 0 [pid 5286] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5285] <... mkdir resumed>) = 0 [pid 5281] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 1 [pid 5290] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] <... futex resumed>) = 0 [pid 5285] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 1 [pid 5282] <... futex resumed>) = 0 [pid 5279] <... futex resumed>) = 0 [pid 5285] chdir("./bus" [pid 5284] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... chdir resumed>) = 0 [pid 5279] <... futex resumed>) = 0 [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5289] mkdirat(AT_FDCWD, "./file1", 000 [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] <... futex resumed>) = 0 [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... mkdirat resumed>) = 0 [pid 5286] <... futex resumed>) = 1 [pid 5285] <... futex resumed>) = 1 [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5290] <... futex resumed>) = 0 [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5283] <... futex resumed>) = 1 [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5290] mkdir("./bus", 000 [pid 5289] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] chdir("./bus" [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5280] <... futex resumed>) = 0 [pid 5289] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] mkdir("./bus", 000 [pid 5285] mkdirat(AT_FDCWD, "./file1", 000 [pid 5284] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... mkdir resumed>) = 0 [pid 5289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] <... mkdir resumed>) = 0 [pid 5285] <... mkdirat resumed>) = 0 [pid 5284] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] <... futex resumed>) = 0 [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] chdir("./bus" [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 1 [pid 5281] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... futex resumed>) = 0 [pid 5289] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5286] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5289] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] exit_group(0 [pid 5289] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5281] <... futex resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5279] <... exit_group resumed>) = ? [pid 5290] <... futex resumed>) = 1 [pid 5289] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] <... futex resumed>) = ? [pid 5286] chdir("./bus" [pid 5285] <... futex resumed>) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5282] <... futex resumed>) = 0 [pid 5281] exit_group(0 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5289] <... futex resumed>) = ? [pid 5288] +++ exited with 0 +++ [pid 5286] <... chdir resumed>) = 0 [pid 5281] <... exit_group resumed>) = ? [pid 5290] chdir("./bus" [pid 5289] +++ exited with 0 +++ [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] chdir("./bus" [pid 5284] +++ exited with 0 +++ [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] +++ exited with 0 +++ [pid 5279] +++ exited with 0 +++ [pid 5286] <... futex resumed>) = 1 [pid 5285] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5283] <... futex resumed>) = 0 [pid 5282] <... futex resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5290] <... chdir resumed>) = 0 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5285] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] restart_syscall(<... resuming interrupted clone ...> [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5290] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5285] <... futex resumed>) = 0 [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5280] <... futex resumed>) = 0 [pid 5252] <... restart_syscall resumed>) = 0 [pid 5251] <... restart_syscall resumed>) = 0 [pid 5290] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] mkdirat(AT_FDCWD, "./file1", 000 [pid 5285] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] exit_group(0 [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] <... mkdirat resumed>) = 0 [pid 5285] <... futex resumed>) = ? [pid 5283] <... futex resumed>) = 0 [pid 5282] <... exit_group resumed>) = ? [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] +++ exited with 0 +++ [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5286] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5286] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5282] +++ exited with 0 +++ [pid 5280] <... futex resumed>) = 0 [pid 5252] <... openat resumed>) = 3 [pid 5251] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5286] chdir("./bus" [pid 5280] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] newfstatat(3, "", [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5290] mkdirat(AT_FDCWD, "./file1", 000 [pid 5286] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] restart_syscall(<... resuming interrupted clone ...> [pid 5286] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] getdents64(3, [pid 5290] <... mkdirat resumed>) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5286] <... futex resumed>) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5280] exit_group(0 [ 142.324046][ T5295] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5252] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] newfstatat(3, "", [pid 5280] <... exit_group resumed>) = ? [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ [pid 5252] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] <... restart_syscall resumed>) = 0 [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5252] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] getdents64(3, [pid 5252] unlink("./1/binderfs" [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] <... unlink resumed>) = 0 [pid 5251] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5290] <... futex resumed>) = 1 [pid 5283] <... futex resumed>) = 0 [pid 5253] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] chdir("./bus" [pid 5283] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5253] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] <... openat resumed>) = 3 [pid 5253] <... openat resumed>) = 3 [pid 5249] newfstatat(3, "", [pid 5253] newfstatat(3, "", [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] getdents64(3, [pid 5253] getdents64(3, [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5249] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5253] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5249] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] unlink("./1/binderfs" [pid 5253] unlink("./1/binderfs" [pid 5249] <... unlink resumed>) = 0 [pid 5290] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5283] <... futex resumed>) = 0 [pid 5253] <... unlink resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5290] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5283] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5290] <... futex resumed>) = 0 [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5251] unlink("./1/binderfs" [pid 5283] exit_group(0 [pid 5251] <... unlink resumed>) = 0 [pid 5283] <... exit_group resumed>) = ? [pid 5290] +++ exited with 0 +++ [ 142.399880][ T5291] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 142.419121][ T5291] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 142.420948][ T5294] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 142.439946][ T5291] Remounting filesystem read-only [pid 5251] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5283] +++ exited with 0 +++ [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5250] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5250] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5250] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] unlink("./1/binderfs") = 0 [ 142.442513][ T5294] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 142.461912][ T5293] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 142.473853][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 142.483300][ T5292] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5250] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... umount2 resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5249] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./1/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5249] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5249] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] close(4) = 0 [pid 5249] rmdir("./1/bus") = 0 [pid 5249] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5249] close(3) = 0 [ 142.489451][ T5293] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [ 142.504960][ T5294] Remounting filesystem read-only [ 142.507190][ T5293] Remounting filesystem read-only [ 142.510342][ T5295] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 142.527325][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 142.527838][ T5292] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5249] rmdir("./1") = 0 [pid 5249] mkdir("./2", 0777) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5249] ioctl(3, LOOP_CLR_FD) = 0 [pid 5249] close(3) = 0 [pid 5252] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555571b2b690) = 5296 ./strace-static-x86_64: Process 5296 attached [pid 5296] set_robust_list(0x555571b2b6a0, 24 [pid 5252] newfstatat(AT_FDCWD, "./1/bus", [pid 5296] <... set_robust_list resumed>) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5296] chdir("./2") = 0 [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5296] setpgid(0, 0) = 0 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5296] write(3, "1000", 4 [pid 5252] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5296] <... write resumed>) = 4 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5296] close(3 [pid 5252] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5296] <... close resumed>) = 0 [pid 5252] <... openat resumed>) = 4 [pid 5296] symlink("/dev/binderfs", "./binderfs" [pid 5252] newfstatat(4, "", [pid 5296] <... symlink resumed>) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 executing program [pid 5296] write(1, "executing program\n", 18) = 18 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5296] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [ 142.536391][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 142.561993][ T5295] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 142.576328][ T5292] Remounting filesystem read-only [ 142.584564][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5253] <... umount2 resumed>) = 0 [pid 5252] getdents64(4, [pid 5251] <... umount2 resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5253] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5297 attached ) = -1 EINVAL (Invalid argument) [pid 5252] getdents64(4, [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5296] <... clone3 resumed> => {parent_tid=[5297]}, 88) = 5297 [pid 5253] newfstatat(AT_FDCWD, "./1/bus", [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5251] newfstatat(AT_FDCWD, "./1/bus", [pid 5297] <... rseq resumed>) = 0 [pid 5296] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] close(4 [pid 5297] set_robust_list(0x7f4212c489a0, 24 [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5297] <... set_robust_list resumed>) = 0 [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... close resumed>) = 0 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] rmdir("./1/bus" [pid 5251] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] rt_sigprocmask(SIG_SETMASK, [], [pid 5296] <... futex resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... openat resumed>) = 4 [pid 5252] <... rmdir resumed>) = 0 [pid 5297] sync( [pid 5253] newfstatat(4, "", [pid 5252] getdents64(3, [pid 5251] <... openat resumed>) = 4 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] getdents64(4, [pid 5251] newfstatat(4, "", [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] getdents64(4, [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] <... umount2 resumed>) = 0 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] close(4) = 0 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] rmdir("./1/bus" [pid 5250] newfstatat(AT_FDCWD, "./1/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] <... rmdir resumed>) = 0 [pid 5250] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5250] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] getdents64(4, [pid 5253] getdents64(3, [pid 5250] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] close(3 [pid 5250] getdents64(4, [pid 5253] <... close resumed>) = 0 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] close(4 [pid 5253] rmdir("./1" [pid 5250] <... close resumed>) = 0 [pid 5253] <... rmdir resumed>) = 0 [ 142.597859][ T5295] Remounting filesystem read-only [ 142.604329][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5250] rmdir("./1/bus") = 0 [pid 5297] <... sync resumed>) = 0 [pid 5253] mkdir("./2", 0777 [pid 5252] close(3 [pid 5251] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5252] <... close resumed>) = 0 [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5253] <... mkdir resumed>) = 0 [pid 5252] rmdir("./1" [pid 5251] getdents64(4, [pid 5250] getdents64(3, [pid 5297] <... futex resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5297] memfd_create("syzkaller", 0 [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... openat resumed>) = 3 [pid 5252] <... rmdir resumed>) = 0 [pid 5251] close(4 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5253] ioctl(3, LOOP_CLR_FD [pid 5252] mkdir("./2", 0777 [pid 5251] rmdir("./1/bus" [pid 5250] close(3 [pid 5297] <... memfd_create resumed>) = 3 [pid 5253] <... ioctl resumed>) = 0 [pid 5252] <... mkdir resumed>) = 0 [pid 5251] <... rmdir resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5251] getdents64(3, [pid 5253] close(3 [pid 5250] rmdir("./1" [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5251] close(3 [pid 5252] <... openat resumed>) = 3 [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5250] <... rmdir resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5297] <... mmap resumed>) = 0x7f420a800000 [pid 5252] <... ioctl resumed>) = 0 [pid 5251] rmdir("./1" [pid 5252] close(3 [pid 5251] <... rmdir resumed>) = 0 [pid 5297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5252] <... close resumed>) = 0 [pid 5251] mkdir("./2", 0777 [pid 5250] mkdir("./2", 0777 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] <... close resumed>) = 0 [pid 5251] <... mkdir resumed>) = 0 [pid 5250] <... mkdir resumed>) = 0 [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 ./strace-static-x86_64: Process 5299 attached ./strace-static-x86_64: Process 5298 attached [pid 5297] <... write resumed>) = 1048576 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5298 [pid 5251] <... openat resumed>) = 3 [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5299] set_robust_list(0x555571b2b6a0, 24 [pid 5250] <... ioctl resumed>) = 0 [pid 5299] <... set_robust_list resumed>) = 0 [pid 5251] ioctl(3, LOOP_CLR_FD [pid 5299] chdir("./2" [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5299 [pid 5251] <... ioctl resumed>) = 0 [pid 5250] close(3 [pid 5299] <... chdir resumed>) = 0 [pid 5298] set_robust_list(0x555571b2b6a0, 24 [pid 5297] munmap(0x7f420a800000, 138412032 [pid 5251] close(3 [pid 5250] <... close resumed>) = 0 [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5298] <... set_robust_list resumed>) = 0 [pid 5297] <... munmap resumed>) = 0 [pid 5299] <... prctl resumed>) = 0 [pid 5298] chdir("./2" [pid 5251] <... close resumed>) = 0 [pid 5299] setpgid(0, 0 [pid 5298] <... chdir resumed>) = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5298] <... prctl resumed>) = 0 [pid 5297] <... openat resumed>) = 4 [pid 5299] <... setpgid resumed>) = 0 [pid 5298] setpgid(0, 0 [pid 5297] ioctl(4, LOOP_SET_FD, 3 [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5298] <... setpgid resumed>) = 0 [pid 5297] <... ioctl resumed>) = 0 [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5300 attached [pid 5299] write(3, "1000", 4 [pid 5298] write(3, "1000", 4 [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5299] <... write resumed>) = 4 [pid 5299] close(3) = 0 [pid 5298] <... write resumed>) = 4 [pid 5299] symlink("/dev/binderfs", "./binderfs" [pid 5298] close(3./strace-static-x86_64: Process 5301 attached [pid 5300] set_robust_list(0x555571b2b6a0, 24 [pid 5298] <... close resumed>) = 0 [pid 5301] set_robust_list(0x555571b2b6a0, 24 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5299] <... symlink resumed>) = 0 [pid 5298] symlink("/dev/binderfs", "./binderfs" [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5300 [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5301 executing program [pid 5301] <... set_robust_list resumed>) = 0 [pid 5300] chdir("./2" [pid 5299] write(1, "executing program\n", 18 [pid 5298] <... symlink resumed>) = 0 [pid 5300] <... chdir resumed>) = 0 [pid 5299] <... write resumed>) = 18 [pid 5298] write(1, "executing program\n", 18 [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5299] <... futex resumed>) = 0 executing program [pid 5301] chdir("./2" [pid 5298] <... write resumed>) = 18 [pid 5301] <... chdir resumed>) = 0 [pid 5300] <... prctl resumed>) = 0 [pid 5299] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] close(3 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] setpgid(0, 0 [pid 5299] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5298] <... futex resumed>) = 0 [pid 5297] <... close resumed>) = 0 [pid 5301] <... prctl resumed>) = 0 [pid 5300] <... setpgid resumed>) = 0 [pid 5299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5298] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5297] close(4 [pid 5301] setpgid(0, 0 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5298] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5300] <... openat resumed>) = 3 [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5297] <... close resumed>) = 0 [pid 5301] <... setpgid resumed>) = 0 [pid 5300] write(3, "1000", 4 [pid 5299] <... mmap resumed>) = 0x7f4212c28000 [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5297] mkdir("./bus", 0777 [pid 5300] <... write resumed>) = 4 [pid 5299] <... mprotect resumed>) = 0 [pid 5298] <... mmap resumed>) = 0x7f4212c28000 [pid 5299] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5298] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5302 attached [pid 5302] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053) = 0 [pid 5298] <... clone3 resumed> => {parent_tid=[5302]}, 88) = 5302 [pid 5302] set_robust_list(0x7f4212c489a0, 24 [pid 5298] rt_sigprocmask(SIG_SETMASK, [], [pid 5302] <... set_robust_list resumed>) = 0 [pid 5298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] rt_sigprocmask(SIG_SETMASK, [], [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] sync( [pid 5301] <... openat resumed>) = 3 [pid 5299] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5298] <... futex resumed>) = 0 [pid 5301] write(3, "1000", 4 [pid 5300] close(3 [pid 5299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5303 attached [pid 5301] <... write resumed>) = 4 [pid 5300] <... close resumed>) = 0 [pid 5301] close(3 [pid 5300] symlink("/dev/binderfs", "./binderfs" [pid 5299] <... clone3 resumed> => {parent_tid=[5303]}, 88) = 5303 [pid 5303] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5301] <... close resumed>) = 0 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5303] <... rseq resumed>) = 0 [pid 5301] symlink("/dev/binderfs", "./binderfs" [pid 5300] <... symlink resumed>) = 0 [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program executing program [pid 5301] <... symlink resumed>) = 0 [pid 5300] write(1, "executing program\n", 18 [pid 5299] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] set_robust_list(0x7f4212c489a0, 24 [pid 5301] write(1, "executing program\n", 18 [pid 5300] <... write resumed>) = 18 [pid 5303] <... set_robust_list resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5303] rt_sigprocmask(SIG_SETMASK, [], [pid 5301] <... write resumed>) = 18 [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] sync( [pid 5300] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5301] <... futex resumed>) = 0 [pid 5301] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5301] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 142.747710][ T5297] loop0: detected capacity change from 0 to 2048 [pid 5301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5300] <... mmap resumed>) = 0x7f4212c28000 [pid 5301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5300] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5301] <... mmap resumed>) = 0x7f4212c28000 [pid 5300] <... mprotect resumed>) = 0 [pid 5300] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5301] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5300] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5301] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5305 attached => {parent_tid=[5305]}, 88) = 5305 [pid 5301] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5300] rt_sigprocmask(SIG_SETMASK, [], [pid 5301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5305] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053) = 0 [pid 5305] set_robust_list(0x7f4212c489a0, 24./strace-static-x86_64: Process 5306 attached [pid 5300] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5306] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5305] <... set_robust_list resumed>) = 0 [pid 5301] <... clone3 resumed> => {parent_tid=[5306]}, 88) = 5306 [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... mount resumed>) = 0 [pid 5301] rt_sigprocmask(SIG_SETMASK, [], [pid 5300] <... futex resumed>) = 0 [pid 5297] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5306] <... rseq resumed>) = 0 [pid 5305] rt_sigprocmask(SIG_SETMASK, [], [pid 5302] <... sync resumed>) = 0 [pid 5301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5297] <... openat resumed>) = 3 [pid 5306] set_robust_list(0x7f4212c489a0, 24 [pid 5305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5303] <... sync resumed>) = 0 [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] chdir("./bus" [pid 5306] <... set_robust_list resumed>) = 0 [pid 5301] <... futex resumed>) = 0 [pid 5299] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... chdir resumed>) = 0 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] <... futex resumed>) = 0 [pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5306] rt_sigprocmask(SIG_SETMASK, [], [pid 5305] sync( [pid 5302] <... futex resumed>) = 0 [pid 5299] <... mmap resumed>) = 0x7f4212c07000 [pid 5298] <... futex resumed>) = 0 [pid 5297] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5305] <... sync resumed>) = 0 [pid 5303] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] memfd_create("syzkaller", 0 [pid 5299] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] sync( [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... futex resumed>) = 0 [pid 5302] <... memfd_create resumed>) = 3 [pid 5299] <... mprotect resumed>) = 0 [pid 5297] <... futex resumed>) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5306] <... sync resumed>) = 0 [pid 5305] <... futex resumed>) = 1 [pid 5303] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5300] <... futex resumed>) = 0 [pid 5297] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [ 142.805337][ T5304] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... mmap resumed>) = 0x7f420a800000 [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5296] <... futex resumed>) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5299] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5297] mkdir("./bus", 000 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5301] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5307 attached [pid 5306] memfd_create("syzkaller", 0 [pid 5305] memfd_create("syzkaller", 0 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5307] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5306] <... memfd_create resumed>) = 3 [pid 5305] <... memfd_create resumed>) = 3 [pid 5299] <... clone3 resumed> => {parent_tid=[5307]}, 88) = 5307 [pid 5297] <... mkdir resumed>) = 0 [pid 5307] <... rseq resumed>) = 0 [pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], [pid 5307] set_robust_list(0x7f4212c279a0, 24 [pid 5306] <... mmap resumed>) = 0x7f420a800000 [pid 5299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... set_robust_list resumed>) = 0 [pid 5305] <... mmap resumed>) = 0x7f420a800000 [pid 5299] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... futex resumed>) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5307] rt_sigprocmask(SIG_SETMASK, [], [pid 5299] <... futex resumed>) = 0 [pid 5297] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5299] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5296] <... futex resumed>) = 0 [pid 5307] memfd_create("syzkaller", 0 [pid 5297] chdir("./bus" [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] <... memfd_create resumed>) = 3 [pid 5297] <... chdir resumed>) = 0 [pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... mmap resumed>) = 0x7f420a800000 [pid 5297] <... futex resumed>) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5297] mkdirat(AT_FDCWD, "./file1", 000 [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... mkdirat resumed>) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] chdir("./bus") = -1 ENOENT (No such file or directory) [pid 5297] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5296] exit_group(0) = ? [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5297] <... futex resumed>) = ? [pid 5302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5297] +++ exited with 0 +++ [pid 5296] +++ exited with 0 +++ [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5249] restart_syscall(<... resuming interrupted clone ...> [pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5249] <... restart_syscall resumed>) = 0 [pid 5305] <... write resumed>) = 1048576 [pid 5302] <... write resumed>) = 1048576 [pid 5249] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5306] <... write resumed>) = 1048576 [pid 5249] <... openat resumed>) = 3 [pid 5249] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] getdents64(3, [pid 5302] munmap(0x7f420a800000, 138412032 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5306] munmap(0x7f420a800000, 138412032 [pid 5305] munmap(0x7f420a800000, 138412032 [pid 5249] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5302] <... munmap resumed>) = 0 [pid 5249] unlink("./2/binderfs") = 0 [pid 5249] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] <... munmap resumed>) = 0 [pid 5306] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5305] <... munmap resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5306] <... openat resumed>) = 4 [pid 5307] <... write resumed>) = 1048576 [pid 5306] ioctl(4, LOOP_SET_FD, 3 [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5302] <... openat resumed>) = 4 [pid 5307] munmap(0x7f420a800000, 138412032) = 0 [pid 5307] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 142.930269][ T5304] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 142.931725][ T5306] loop1: detected capacity change from 0 to 2048 [ 142.941832][ T5304] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [ 142.942643][ T5304] Remounting filesystem read-only [ 142.955371][ T5302] loop3: detected capacity change from 0 to 2048 [ 142.969499][ T5307] loop4: detected capacity change from 0 to 2048 [pid 5307] ioctl(4, LOOP_SET_FD, 3 [pid 5305] <... openat resumed>) = 4 [pid 5302] ioctl(4, LOOP_SET_FD, 3 [pid 5305] ioctl(4, LOOP_SET_FD, 3 [pid 5306] <... ioctl resumed>) = 0 [pid 5306] close(3 [pid 5307] <... ioctl resumed>) = 0 [pid 5306] <... close resumed>) = 0 [pid 5305] <... ioctl resumed>) = 0 [pid 5302] <... ioctl resumed>) = 0 [pid 5306] close(4 [pid 5249] <... umount2 resumed>) = 0 [pid 5307] close(3 [pid 5306] <... close resumed>) = 0 [pid 5305] close(3 [pid 5302] close(3 [pid 5249] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] mkdir("./bus", 0777 [pid 5305] <... close resumed>) = 0 [pid 5302] <... close resumed>) = 0 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5307] <... close resumed>) = 0 [pid 5307] close(4) = 0 [pid 5307] mkdir("./bus", 0777) = 0 [pid 5306] <... mkdir resumed>) = 0 [pid 5305] close(4 [pid 5302] close(4 [pid 5249] newfstatat(AT_FDCWD, "./2/bus", [pid 5306] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5305] <... close resumed>) = 0 [pid 5302] <... close resumed>) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5307] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5302] mkdir("./bus", 0777 [pid 5249] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5305] mkdir("./bus", 0777 [pid 5302] <... mkdir resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5305] <... mkdir resumed>) = 0 [pid 5302] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5249] <... openat resumed>) = 4 [pid 5249] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5305] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5249] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5249] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] close(4) = 0 [pid 5249] rmdir("./2/bus") = 0 [pid 5249] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5249] close(3) = 0 [pid 5249] rmdir("./2") = 0 [ 142.969631][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 142.976689][ T5305] loop2: detected capacity change from 0 to 2048 [ 143.016667][ T5308] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5302] <... mount resumed>) = 0 [pid 5249] mkdir("./3", 0777) = 0 [pid 5305] <... mount resumed>) = 0 [pid 5302] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5305] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5302] <... openat resumed>) = 3 [pid 5249] <... openat resumed>) = 3 [pid 5305] <... openat resumed>) = 3 [pid 5302] chdir("./bus" [pid 5305] chdir("./bus" [pid 5302] <... chdir resumed>) = 0 [pid 5249] ioctl(3, LOOP_CLR_FD [pid 5305] <... chdir resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5249] <... ioctl resumed>) = 0 [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5302] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5249] close(3 [pid 5307] <... mount resumed>) = 0 [pid 5306] <... mount resumed>) = 0 [pid 5305] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5306] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5307] <... openat resumed>) = 3 [pid 5306] <... openat resumed>) = 3 [pid 5305] <... futex resumed>) = 1 [pid 5302] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] <... futex resumed>) = 0 [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... close resumed>) = 0 [pid 5307] chdir("./bus" [pid 5306] chdir("./bus" [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... chdir resumed>) = 0 [pid 5306] <... chdir resumed>) = 0 [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] mkdir("./bus", 000 [pid 5300] <... futex resumed>) = 0 [pid 5298] <... futex resumed>) = 0 [pid 5307] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5306] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5305] mkdir("./bus", 000 [pid 5302] <... mkdir resumed>) = 0 [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5306] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5305] <... mkdir resumed>) = 0 [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5307] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... futex resumed>) = 0 [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... futex resumed>) = 1 [pid 5306] <... futex resumed>) = 1 [ 143.018548][ T5309] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 143.041305][ T5310] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 143.053679][ T5311] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5305] <... futex resumed>) = 1 [pid 5302] chdir("./bus" [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5298] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5312 attached [pid 5307] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... chdir resumed>) = 0 [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] set_robust_list(0x555571b2b6a0, 24 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5303] <... futex resumed>) = 0 [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5299] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5312 [pid 5312] <... set_robust_list resumed>) = 0 [pid 5306] mkdir("./bus", 000 [pid 5305] chdir("./bus" [pid 5303] mkdir("./bus", 000 [pid 5302] <... futex resumed>) = 0 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] chdir("./3" [pid 5306] <... mkdir resumed>) = 0 [pid 5305] <... chdir resumed>) = 0 [pid 5302] mkdirat(AT_FDCWD, "./file1", 000 [pid 5312] <... chdir resumed>) = 0 [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... mkdirat resumed>) = 0 [pid 5298] <... futex resumed>) = 0 [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5306] <... futex resumed>) = 1 [pid 5305] <... futex resumed>) = 1 [pid 5303] <... mkdir resumed>) = 0 [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] <... prctl resumed>) = 0 [pid 5306] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... futex resumed>) = 0 [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5312] setpgid(0, 0 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5303] <... futex resumed>) = 1 [pid 5302] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5299] <... futex resumed>) = 0 [pid 5312] <... setpgid resumed>) = 0 [pid 5306] chdir("./bus" [pid 5305] mkdirat(AT_FDCWD, "./file1", 000 [pid 5303] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5306] <... chdir resumed>) = 0 [pid 5312] <... openat resumed>) = 3 [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] chdir("./bus" [pid 5299] <... futex resumed>) = 0 [pid 5298] <... futex resumed>) = 0 [pid 5312] write(3, "1000", 4 [pid 5306] <... futex resumed>) = 1 [pid 5305] <... mkdirat resumed>) = 0 [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5301] <... futex resumed>) = 0 [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5298] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] <... write resumed>) = 4 [pid 5306] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] chdir("./bus" [pid 5302] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5312] close(3 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5305] <... futex resumed>) = 1 [pid 5303] <... chdir resumed>) = 0 [pid 5302] <... futex resumed>) = 0 [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5298] exit_group(0 [pid 5312] <... close resumed>) = 0 [pid 5306] mkdirat(AT_FDCWD, "./file1", 000 [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... exit_group resumed>) = ? [pid 5312] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5302] +++ exited with 0 +++ [pid 5300] <... futex resumed>) = 0 [pid 5312] write(1, "executing program\n", 18) = 18 [pid 5312] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5312] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5312] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5312] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5298] +++ exited with 0 +++ [pid 5312] <... mprotect resumed>) = 0 executing program [pid 5303] <... futex resumed>) = 1 [pid 5300] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] <... futex resumed>) = 0 [pid 5312] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5306] <... mkdirat resumed>) = 0 [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5303] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5299] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] chdir("./bus" [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5299] <... futex resumed>) = 0 [pid 5252] restart_syscall(<... resuming interrupted clone ...> [pid 5306] <... futex resumed>) = 1 [pid 5305] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5303] mkdirat(AT_FDCWD, "./file1", 000 [pid 5301] <... futex resumed>) = 0 [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5306] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... mkdirat resumed>) = 0 [pid 5301] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5305] <... futex resumed>) = 1 [pid 5303] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = 0 [pid 5300] <... futex resumed>) = 0 [pid 5252] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5313 attached [pid 5306] chdir("./bus" [pid 5305] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5303] <... futex resumed>) = 1 [pid 5301] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] exit_group(0 [pid 5299] <... futex resumed>) = 0 [pid 5313] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5312] <... clone3 resumed> => {parent_tid=[5313]}, 88) = 5313 [pid 5306] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5305] <... futex resumed>) = ? [pid 5303] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] <... exit_group resumed>) = ? [pid 5299] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... rseq resumed>) = 0 [pid 5312] rt_sigprocmask(SIG_SETMASK, [], [pid 5306] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] +++ exited with 0 +++ [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5299] <... futex resumed>) = 0 [pid 5252] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5313] set_robust_list(0x7f4212c489a0, 24 [pid 5312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5303] chdir("./bus" [pid 5301] <... futex resumed>) = 0 [pid 5300] +++ exited with 0 +++ [pid 5299] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5313] <... set_robust_list resumed>) = 0 [pid 5312] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] exit_group(0 [pid 5252] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5303] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5313] rt_sigprocmask(SIG_SETMASK, [], [pid 5312] <... futex resumed>) = 0 [pid 5306] <... futex resumed>) = ? [pid 5301] <... exit_group resumed>) = ? [pid 5252] <... openat resumed>) = 3 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5303] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5312] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] newfstatat(3, "", [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5303] <... futex resumed>) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5303] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5299] exit_group(0 [pid 5313] sync( [pid 5252] getdents64(3, [pid 5307] <... futex resumed>) = ? [pid 5303] <... futex resumed>) = ? [pid 5307] +++ exited with 0 +++ [pid 5303] +++ exited with 0 +++ [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5306] +++ exited with 0 +++ [pid 5252] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5301] +++ exited with 0 +++ [pid 5299] <... exit_group resumed>) = ? [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... restart_syscall resumed>) = 0 [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5250] restart_syscall(<... resuming interrupted clone ...> [pid 5251] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] <... restart_syscall resumed>) = 0 [pid 5251] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5251] newfstatat(3, "", [pid 5250] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] getdents64(3, [pid 5250] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5250] <... openat resumed>) = 3 [pid 5251] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] newfstatat(3, "", [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5250] getdents64(3, [pid 5251] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5251] unlink("./2/binderfs" [pid 5250] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... unlink resumed>) = 0 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5299] +++ exited with 0 +++ [pid 5252] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5252] unlink("./2/binderfs" [pid 5250] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] restart_syscall(<... resuming interrupted clone ...> [pid 5250] unlink("./2/binderfs" [pid 5253] <... restart_syscall resumed>) = 0 [pid 5250] <... unlink resumed>) = 0 [pid 5250] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5253] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5253] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5253] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 143.196433][ T5308] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 143.211610][ T5308] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 143.222201][ T5308] Remounting filesystem read-only [ 143.222886][ T5311] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5253] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] <... unlink resumed>) = 0 [pid 5312] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5312] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5312] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5312] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} => {parent_tid=[5314]}, 88) = 5314 [pid 5312] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5312] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5312] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5314 attached [pid 5314] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053) = 0 [pid 5314] set_robust_list(0x7f4212c279a0, 24) = 0 [pid 5314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5314] memfd_create("syzkaller", 0) = 3 [pid 5314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5253] unlink("./2/binderfs" [ 143.229498][ T5309] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 143.239295][ T5311] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 143.251864][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 143.261479][ T5311] Remounting filesystem read-only [ 143.275323][ T5309] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 143.286433][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5252] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5314] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5253] <... unlink resumed>) = 0 [pid 5250] <... umount2 resumed>) = 0 [pid 5253] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] newfstatat(AT_FDCWD, "./2/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5250] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5250] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5250] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] close(4) = 0 [pid 5250] rmdir("./2/bus") = 0 [pid 5251] <... umount2 resumed>) = 0 [pid 5250] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5250] close(3) = 0 [pid 5251] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./2/bus", [pid 5250] rmdir("./2" [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] <... rmdir resumed>) = 0 [pid 5251] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] mkdir("./3", 0777 [pid 5251] <... openat resumed>) = 4 [pid 5250] <... mkdir resumed>) = 0 [pid 5251] newfstatat(4, "", [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] <... openat resumed>) = 3 [pid 5251] getdents64(4, [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5251] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] getdents64(4, [pid 5250] <... ioctl resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5251] close(4 [pid 5250] close(3 [pid 5251] <... close resumed>) = 0 [pid 5314] <... write resumed>) = 1048576 [pid 5251] rmdir("./2/bus") = 0 [pid 5250] <... close resumed>) = 0 [ 143.286540][ T5310] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 143.313454][ T5310] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 143.317727][ T5309] Remounting filesystem read-only [ 143.339528][ T5310] Remounting filesystem read-only [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] getdents64(3, [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5315 [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5251] close(3./strace-static-x86_64: Process 5315 attached [pid 5314] munmap(0x7f420a800000, 138412032 [pid 5251] <... close resumed>) = 0 [pid 5315] set_robust_list(0x555571b2b6a0, 24 [pid 5314] <... munmap resumed>) = 0 [pid 5251] rmdir("./2" [pid 5315] <... set_robust_list resumed>) = 0 [pid 5315] chdir("./3" [pid 5251] <... rmdir resumed>) = 0 [pid 5314] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5253] <... umount2 resumed>) = 0 [pid 5315] <... chdir resumed>) = 0 [pid 5314] <... openat resumed>) = 4 [pid 5253] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... umount2 resumed>) = 0 [ 143.345367][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 143.356147][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [pid 5251] mkdir("./3", 0777 [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5314] ioctl(4, LOOP_SET_FD, 3 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] newfstatat(AT_FDCWD, "./2/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] <... mkdir resumed>) = 0 [pid 5253] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5253] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5253] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5253] close(4 [pid 5315] <... prctl resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5252] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5253] rmdir("./2/bus" [pid 5315] setpgid(0, 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... openat resumed>) = 3 [pid 5251] ioctl(3, LOOP_CLR_FD [pid 5252] newfstatat(AT_FDCWD, "./2/bus", [pid 5315] <... setpgid resumed>) = 0 [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] <... sync resumed>) = 0 [pid 5253] <... rmdir resumed>) = 0 [pid 5251] <... ioctl resumed>) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] close(3 [pid 5313] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5313] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5315] <... openat resumed>) = 3 [pid 5253] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] close(3) = 0 [pid 5253] rmdir("./2") = 0 [pid 5253] mkdir("./3", 0777 [pid 5315] write(3, "1000", 4 [pid 5252] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] <... mkdir resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5253] ioctl(3, LOOP_CLR_FD) = 0 [pid 5253] close(3 [pid 5315] <... write resumed>) = 4 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5315] close(3 [pid 5252] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] <... close resumed>) = 0 [pid 5315] <... close resumed>) = 0 [pid 5252] <... openat resumed>) = 4 [pid 5315] symlink("/dev/binderfs", "./binderfs" [pid 5252] newfstatat(4, "", [pid 5315] <... symlink resumed>) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5315] write(1, "executing program\n", 18) = 18 [pid 5252] getdents64(4, [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... ioctl resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5315] <... futex resumed>) = 0 [pid 5252] getdents64(4, [pid 5315] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5315] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5252] close(4 [pid 5315] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5252] <... close resumed>) = 0 [pid 5315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5252] rmdir("./2/bus") = 0 [pid 5315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5252] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5315] <... mmap resumed>) = 0x7f4212c28000 [pid 5252] close(3 [pid 5315] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5252] <... close resumed>) = 0 [pid 5252] rmdir("./2") = 0 [pid 5314] close(3 [pid 5252] mkdir("./3", 0777 [pid 5315] <... mprotect resumed>) = 0 [pid 5314] <... close resumed>) = 0 [pid 5314] close(4./strace-static-x86_64: Process 5316 attached [pid 5252] <... mkdir resumed>) = 0 [pid 5314] <... close resumed>) = 0 [pid 5316] set_robust_list(0x555571b2b6a0, 24) = 0 [pid 5315] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5314] mkdir("./bus", 0777 [pid 5316] chdir("./3") = 0 [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5316] setpgid(0, 0) = 0 [pid 5314] <... mkdir resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5316] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5317 attached [ 143.389973][ T5314] loop0: detected capacity change from 0 to 2048 [pid 5316] write(3, "1000", 4 [pid 5315] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5314] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5316 [pid 5316] <... write resumed>) = 4 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5317 [pid 5317] set_robust_list(0x555571b2b6a0, 24 [pid 5316] close(3 [pid 5315] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5252] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5319 attached [pid 5316] <... close resumed>) = 0 executing program [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5319] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5315] <... clone3 resumed> => {parent_tid=[5319]}, 88) = 5319 [pid 5319] <... rseq resumed>) = 0 [pid 5252] <... ioctl resumed>) = 0 [pid 5319] set_robust_list(0x7f4212c489a0, 24 [pid 5315] rt_sigprocmask(SIG_SETMASK, [], [pid 5252] close(3 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5316] symlink("/dev/binderfs", "./binderfs" [pid 5315] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5317] chdir("./3" [pid 5316] <... symlink resumed>) = 0 [pid 5315] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... mount resumed>) = 0 [pid 5319] <... set_robust_list resumed>) = 0 [pid 5317] <... chdir resumed>) = 0 [pid 5316] write(1, "executing program\n", 18 [pid 5315] <... futex resumed>) = 0 [pid 5314] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5319] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5316] <... write resumed>) = 18 [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5314] <... openat resumed>) = 3 [pid 5319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5319] sync( [pid 5317] <... prctl resumed>) = 0 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] chdir("./bus" [pid 5317] setpgid(0, 0 [pid 5316] <... futex resumed>) = 0 [pid 5314] <... chdir resumed>) = 0 [pid 5317] <... setpgid resumed>) = 0 [pid 5316] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5314] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5314] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5317] <... openat resumed>) = 3 [pid 5316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5317] write(3, "1000", 4 [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5314] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... write resumed>) = 4 [pid 5316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5314] <... futex resumed>) = 1 [pid 5312] <... futex resumed>) = 0 [pid 5317] close(3 [pid 5316] <... mmap resumed>) = 0x7f4212c28000 [pid 5314] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5312] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... close resumed>) = 0 [pid 5316] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5313] <... futex resumed>) = 0 [pid 5312] <... futex resumed>) = 1 [pid 5317] symlink("/dev/binderfs", "./binderfs" [pid 5316] <... mprotect resumed>) = 0 [pid 5313] mkdir("./bus", 000 [pid 5312] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5317] <... symlink resumed>) = 0 [pid 5316] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5317] write(1, "executing program\n", 18 [pid 5316] <... rt_sigprocmask resumed>[], 8) = 0 executing program [pid 5317] <... write resumed>) = 18 [ 143.474173][ T5318] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5320 attached [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5316] <... clone3 resumed> => {parent_tid=[5320]}, 88) = 5320 [pid 5317] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5316] rt_sigprocmask(SIG_SETMASK, [], [pid 5313] <... mkdir resumed>) = 0 [pid 5252] <... close resumed>) = 0 [pid 5320] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5317] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5313] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5321 attached [pid 5320] <... rseq resumed>) = 0 [pid 5317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5316] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... futex resumed>) = 1 [pid 5312] <... futex resumed>) = 0 [pid 5313] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5312] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5321 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5312] <... futex resumed>) = 0 [pid 5321] set_robust_list(0x555571b2b6a0, 24 [pid 5320] set_robust_list(0x7f4212c489a0, 24 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5313] chdir("./bus" [pid 5312] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] <... set_robust_list resumed>) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] rt_sigprocmask(SIG_SETMASK, [], [pid 5317] <... mmap resumed>) = 0x7f4212c28000 [pid 5320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5317] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5321] <... set_robust_list resumed>) = 0 [pid 5320] sync( [pid 5317] <... mprotect resumed>) = 0 [pid 5313] <... chdir resumed>) = 0 [pid 5321] chdir("./3" [pid 5317] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5313] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... chdir resumed>) = 0 [pid 5317] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5315] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5313] <... futex resumed>) = 1 [pid 5312] <... futex resumed>) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5315] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... prctl resumed>) = 0 [pid 5315] <... futex resumed>) = 0 [pid 5313] mkdirat(AT_FDCWD, "./file1", 000 [pid 5312] <... futex resumed>) = 0 [pid 5315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5312] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] setpgid(0, 0 [pid 5315] <... mmap resumed>) = 0x7f4212c07000 [pid 5321] <... setpgid resumed>) = 0 [pid 5315] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5315] <... mprotect resumed>) = 0 [pid 5317] <... clone3 resumed> => {parent_tid=[5322]}, 88) = 5322 [pid 5315] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5321] <... openat resumed>) = 3 [pid 5317] rt_sigprocmask(SIG_SETMASK, [], [pid 5315] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5321] write(3, "1000", 4 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5315] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5321] <... write resumed>) = 4 [pid 5317] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5323 attached [pid 5321] close(3 [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5322 attached [pid 5323] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5321] <... close resumed>) = 0 [pid 5315] <... clone3 resumed> => {parent_tid=[5323]}, 88) = 5323 [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 5315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 143.520998][ T5318] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5323] <... rseq resumed>) = 0 [pid 5322] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5321] <... symlink resumed>) = 0 [pid 5315] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... rseq resumed>) = 0 [pid 5322] set_robust_list(0x7f4212c489a0, 24) = 0 [pid 5322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5322] sync( [pid 5315] <... futex resumed>) = 0 [pid 5323] set_robust_list(0x7f4212c279a0, 24 [pid 5315] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5323] <... set_robust_list resumed>) = 0 executing program [pid 5323] rt_sigprocmask(SIG_SETMASK, [], [pid 5321] write(1, "executing program\n", 18 [pid 5323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5321] <... write resumed>) = 18 [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] memfd_create("syzkaller", 0 [pid 5321] <... futex resumed>) = 0 [pid 5321] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5316] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5323] <... memfd_create resumed>) = 3 [pid 5316] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5316] <... futex resumed>) = 0 [pid 5316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5316] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5316] <... mprotect resumed>) = 0 [pid 5321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5316] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5323] <... mmap resumed>) = 0x7f420a800000 [pid 5316] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5321] <... mmap resumed>) = 0x7f4212c28000 [pid 5316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5324 attached => {parent_tid=[5324]}, 88) = 5324 [pid 5316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5316] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5324] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5316] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5324] <... rseq resumed>) = 0 [pid 5324] set_robust_list(0x7f4212c279a0, 24) = 0 [pid 5324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5324] memfd_create("syzkaller", 0) = 3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5321] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5312] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5321] <... mprotect resumed>) = 0 [pid 5317] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5312] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5314] chdir("./bus" [ 143.576050][ T5318] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5312] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5317] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5325 attached [pid 5321] <... clone3 resumed> => {parent_tid=[5325]}, 88) = 5325 [pid 5317] <... futex resumed>) = 0 [pid 5324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5319] <... sync resumed>) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5314] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5313] <... mkdirat resumed>) = 0 [pid 5321] rt_sigprocmask(SIG_SETMASK, [], [pid 5325] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5322] <... sync resumed>) = 0 [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5320] <... sync resumed>) = 0 [pid 5319] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... mmap resumed>) = 0x7f4212c07000 [pid 5314] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... rseq resumed>) = 0 [pid 5322] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... futex resumed>) = 0 [pid 5317] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5314] <... futex resumed>) = 1 [pid 5313] <... futex resumed>) = 0 [pid 5312] <... futex resumed>) = 0 [pid 5325] set_robust_list(0x7f4212c489a0, 24 [pid 5322] <... futex resumed>) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5320] <... futex resumed>) = 0 [pid 5319] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] <... mprotect resumed>) = 0 [pid 5314] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5313] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5312] exit_group(0 [pid 5325] <... set_robust_list resumed>) = 0 [pid 5322] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5314] <... futex resumed>) = ? [pid 5313] <... futex resumed>) = ? [pid 5312] <... exit_group resumed>) = ? [pid 5325] rt_sigprocmask(SIG_SETMASK, [], [pid 5314] +++ exited with 0 +++ [pid 5325] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5323] <... write resumed>) = 1048576 [pid 5317] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5313] +++ exited with 0 +++ [pid 5312] +++ exited with 0 +++ [pid 5325] sync( [pid 5317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5249] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5326 attached [pid 5317] <... clone3 resumed> => {parent_tid=[5326]}, 88) = 5326 [ 143.618069][ T5318] Remounting filesystem read-only [pid 5249] <... restart_syscall resumed>) = 0 [pid 5326] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5325] <... sync resumed>) = 0 [pid 5324] <... write resumed>) = 1048576 [pid 5317] rt_sigprocmask(SIG_SETMASK, [], [pid 5326] <... rseq resumed>) = 0 [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] munmap(0x7f420a800000, 138412032 [pid 5317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5326] set_robust_list(0x7f4212c279a0, 24 [pid 5325] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5317] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5326] <... set_robust_list resumed>) = 0 [pid 5325] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] memfd_create("syzkaller", 0) = 3 [pid 5317] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5324] munmap(0x7f420a800000, 138412032 [pid 5323] <... munmap resumed>) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5325] memfd_create("syzkaller", 0 [pid 5324] <... munmap resumed>) = 0 [pid 5323] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5249] <... openat resumed>) = 3 [pid 5326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5323] <... openat resumed>) = 4 [pid 5249] newfstatat(3, "", [pid 5325] <... memfd_create resumed>) = 3 [pid 5323] ioctl(4, LOOP_SET_FD, 3 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5324] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5326] <... write resumed>) = 1048576 [pid 5323] <... ioctl resumed>) = 0 [pid 5249] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5249] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] unlink("./3/binderfs") = 0 [pid 5249] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5323] close(3 [pid 5326] munmap(0x7f420a800000, 138412032 [pid 5325] <... mmap resumed>) = 0x7f420a800000 [pid 5324] <... openat resumed>) = 4 [pid 5323] <... close resumed>) = 0 [pid 5326] <... munmap resumed>) = 0 [pid 5323] close(4 [pid 5324] ioctl(4, LOOP_SET_FD, 3 [pid 5323] <... close resumed>) = 0 [pid 5323] mkdir("./bus", 0777) = 0 [pid 5326] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5323] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5326] ioctl(4, LOOP_SET_FD, 3 [pid 5324] <... ioctl resumed>) = 0 [pid 5324] close(3) = 0 [ 143.687791][ T5323] loop1: detected capacity change from 0 to 2048 [ 143.699556][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 143.716413][ T5324] loop2: detected capacity change from 0 to 2048 [ 143.719374][ T5326] loop4: detected capacity change from 0 to 2048 [pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5324] close(4 [pid 5326] <... ioctl resumed>) = 0 [pid 5326] close(3) = 0 [pid 5326] close(4) = 0 [pid 5326] mkdir("./bus", 0777) = 0 [pid 5326] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5324] <... close resumed>) = 0 [pid 5324] mkdir("./bus", 0777) = 0 [pid 5324] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5323] <... mount resumed>) = 0 [pid 5323] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5323] chdir("./bus" [pid 5325] <... write resumed>) = 1048576 [pid 5323] <... chdir resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5325] munmap(0x7f420a800000, 138412032 [ 143.736580][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when detaching log writer [ 143.739049][ T5327] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5323] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5325] <... munmap resumed>) = 0 [pid 5323] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5249] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./3/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5323] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5315] <... futex resumed>) = 0 [pid 5323] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5315] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... futex resumed>) = 0 [pid 5315] <... futex resumed>) = 1 [pid 5325] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5319] mkdir("./bus", 000 [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5319] <... mkdir resumed>) = 0 [pid 5249] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5325] <... openat resumed>) = 4 [pid 5324] <... mount resumed>) = 0 [pid 5319] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5325] ioctl(4, LOOP_SET_FD, 3 [pid 5324] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5319] <... futex resumed>) = 1 [pid 5315] <... futex resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5315] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... openat resumed>) = 4 [pid 5325] <... ioctl resumed>) = 0 [pid 5324] <... openat resumed>) = 3 [pid 5315] <... futex resumed>) = 0 [pid 5324] chdir("./bus") = 0 [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5319] chdir("./bus" [pid 5249] newfstatat(4, "", [pid 5325] close(3 [pid 5324] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... close resumed>) = 0 [pid 5324] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5325] close(4 [pid 5324] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... close resumed>) = 0 [pid 5320] <... futex resumed>) = 0 [pid 5325] mkdir("./bus", 0777 [pid 5316] <... futex resumed>) = 1 [pid 5320] mkdir("./bus", 000 [pid 5325] <... mkdir resumed>) = 0 [pid 5319] <... chdir resumed>) = 0 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5325] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5320] <... mkdir resumed>) = 0 [pid 5319] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5249] getdents64(4, [pid 5326] <... mount resumed>) = 0 [pid 5249] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] close(4) = 0 [pid 5249] rmdir("./3/bus" [pid 5326] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5249] <... rmdir resumed>) = 0 [pid 5319] <... futex resumed>) = 1 [pid 5326] <... openat resumed>) = 3 [pid 5315] <... futex resumed>) = 0 [pid 5315] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5319] mkdirat(AT_FDCWD, "./file1", 000 [pid 5249] getdents64(3, [pid 5326] chdir("./bus" [pid 5319] <... mkdirat resumed>) = 0 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5249] close(3 [pid 5326] <... chdir resumed>) = 0 [pid 5320] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... close resumed>) = 0 [pid 5249] rmdir("./3" [pid 5326] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5320] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5249] <... rmdir resumed>) = 0 [pid 5326] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5320] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 143.793623][ T5328] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 143.818180][ T5325] loop3: detected capacity change from 0 to 2048 [ 143.819888][ T5329] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5249] mkdir("./4", 0777 [pid 5316] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5319] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... mkdir resumed>) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5249] ioctl(3, LOOP_CLR_FD) = 0 [pid 5249] close(3 [pid 5326] <... futex resumed>) = 1 [pid 5320] chdir("./bus" [pid 5319] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5315] <... futex resumed>) = 0 [pid 5326] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5325] <... mount resumed>) = 0 [pid 5320] <... chdir resumed>) = 0 [pid 5319] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... close resumed>) = 0 [pid 5325] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5322] <... futex resumed>) = 0 [pid 5320] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5317] <... futex resumed>) = 1 [pid 5315] <... futex resumed>) = 0 [pid 5320] <... futex resumed>) = 1 [pid 5319] chdir("./bus" [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5316] <... futex resumed>) = 0 [pid 5315] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] mkdir("./bus", 000 [pid 5320] mkdirat(AT_FDCWD, "./file1", 000 [pid 5319] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5316] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5325] <... openat resumed>) = 3 [pid 5316] <... futex resumed>) = 0 [pid 5319] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5319] <... futex resumed>) = 1 [pid 5315] <... futex resumed>) = 0 [pid 5320] <... mkdirat resumed>) = 0 [pid 5319] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5315] exit_group(0 [pid 5325] chdir("./bus" [pid 5320] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5315] <... exit_group resumed>) = ? [pid 5319] <... futex resumed>) = ? [pid 5323] <... futex resumed>) = ? [pid 5325] <... chdir resumed>) = 0 [pid 5319] +++ exited with 0 +++ [pid 5323] +++ exited with 0 +++ [pid 5315] +++ exited with 0 +++ [pid 5325] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5320] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] chdir("./bus" [pid 5316] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] restart_syscall(<... resuming interrupted clone ...> [pid 5325] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5320] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5316] <... futex resumed>) = 0 [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... restart_syscall resumed>) = 0 [pid 5316] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5331 attached [pid 5325] mkdir("./bus", 000 [pid 5321] <... futex resumed>) = 0 [pid 5320] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5320] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5320] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] exit_group(0 [pid 5250] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5331] set_robust_list(0x555571b2b6a0, 24 [pid 5324] <... futex resumed>) = ? [pid 5322] <... mkdir resumed>) = 0 [pid 5320] <... futex resumed>) = ? [pid 5316] <... exit_group resumed>) = ? [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5331 [pid 5320] +++ exited with 0 +++ [pid 5250] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5250] newfstatat(3, "", [pid 5331] <... set_robust_list resumed>) = 0 [pid 5324] +++ exited with 0 +++ [pid 5322] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] +++ exited with 0 +++ [pid 5325] <... mkdir resumed>) = 0 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5331] chdir("./4" [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5250] getdents64(3, [pid 5331] <... chdir resumed>) = 0 [pid 5325] <... futex resumed>) = 1 [pid 5322] chdir("./bus" [pid 5317] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [ 143.867389][ T5330] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5322] <... chdir resumed>) = 0 [pid 5321] <... futex resumed>) = 0 [pid 5317] <... futex resumed>) = 0 [pid 5251] <... restart_syscall resumed>) = 0 [pid 5250] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5331] <... prctl resumed>) = 0 [pid 5322] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5331] setpgid(0, 0 [pid 5322] <... futex resumed>) = 0 [pid 5331] <... setpgid resumed>) = 0 [pid 5322] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5322] mkdirat(AT_FDCWD, "./file1", 000 [pid 5317] <... futex resumed>) = 0 [pid 5250] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5322] <... mkdirat resumed>) = 0 [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5325] <... futex resumed>) = 0 [pid 5321] <... futex resumed>) = 1 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] unlink("./3/binderfs" [pid 5325] chdir("./bus" [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] <... unlink resumed>) = 0 [pid 5325] <... chdir resumed>) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] newfstatat(3, "", [pid 5250] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5325] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] getdents64(3, [pid 5321] <... futex resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5325] mkdirat(AT_FDCWD, "./file1", 000 [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5325] <... mkdirat resumed>) = 0 [pid 5251] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5322] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5331] <... openat resumed>) = 3 [pid 5322] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5322] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] unlink("./3/binderfs" [pid 5331] write(3, "1000", 4 [pid 5317] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... unlink resumed>) = 0 [pid 5331] <... write resumed>) = 4 [pid 5322] <... futex resumed>) = 0 [pid 5317] <... futex resumed>) = 1 [pid 5322] chdir("./bus" [pid 5317] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5331] close(3 [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5331] <... close resumed>) = 0 [pid 5325] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 executing program [pid 5331] symlink("/dev/binderfs", "./binderfs" [pid 5325] chdir("./bus" [pid 5322] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5321] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5325] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5325] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5321] exit_group(0 [pid 5331] <... symlink resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5317] <... futex resumed>) = 0 [pid 5331] write(1, "executing program\n", 18 [pid 5321] <... exit_group resumed>) = ? [pid 5331] <... write resumed>) = 18 [pid 5322] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] exit_group(0 [pid 5331] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] <... futex resumed>) = ? [pid 5322] <... futex resumed>) = ? [pid 5317] <... exit_group resumed>) = ? [pid 5331] <... futex resumed>) = 0 [pid 5326] +++ exited with 0 +++ [pid 5322] +++ exited with 0 +++ [pid 5325] +++ exited with 0 +++ [pid 5321] +++ exited with 0 +++ [pid 5317] +++ exited with 0 +++ [pid 5331] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5331] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5252] restart_syscall(<... resuming interrupted clone ...> [pid 5331] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5252] <... restart_syscall resumed>) = 0 [pid 5331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5252] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5252] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5331] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5252] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] unlink("./3/binderfs") = 0 [pid 5252] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5331] <... mprotect resumed>) = 0 [ 143.961992][ T5327] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 143.989281][ T5328] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 143.997095][ T5327] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5331] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5331] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5253] <... openat resumed>) = 3 [pid 5331] <... clone3 resumed> => {parent_tid=[5332]}, 88) = 5332 [pid 5253] newfstatat(3, "", ./strace-static-x86_64: Process 5332 attached [pid 5331] rt_sigprocmask(SIG_SETMASK, [], [pid 5332] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5332] <... rseq resumed>) = 0 [pid 5331] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] set_robust_list(0x7f4212c489a0, 24 [pid 5253] getdents64(3, [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5332] rt_sigprocmask(SIG_SETMASK, [], [pid 5331] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5332] sync( [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] unlink("./3/binderfs") = 0 [ 144.012233][ T5328] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.012459][ T5330] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.022728][ T5327] Remounting filesystem read-only [ 144.042392][ T5328] Remounting filesystem read-only [ 144.051063][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5253] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5331] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5331] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5251] <... umount2 resumed>) = 0 [pid 5251] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./3/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5251] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5251] close(4) = 0 [pid 5251] rmdir("./3/bus") = 0 [pid 5331] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5251] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5251] close(3) = 0 [pid 5251] rmdir("./3" [pid 5331] <... mprotect resumed>) = 0 [pid 5251] <... rmdir resumed>) = 0 [pid 5251] mkdir("./4", 0777 [ 144.062229][ T5330] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.062977][ T5329] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.072377][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 144.104481][ T5330] Remounting filesystem read-only [pid 5331] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5333 attached [pid 5251] <... mkdir resumed>) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5251] ioctl(3, LOOP_CLR_FD) = 0 [pid 5251] close(3 [pid 5333] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053) = 0 [pid 5331] <... clone3 resumed> => {parent_tid=[5333]}, 88) = 5333 [pid 5331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5331] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5331] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5251] <... close resumed>) = 0 [pid 5333] set_robust_list(0x7f4212c279a0, 24 [pid 5250] <... umount2 resumed>) = 0 [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555571b2b690) = 5334 ./strace-static-x86_64: Process 5334 attached [pid 5333] <... set_robust_list resumed>) = 0 [pid 5250] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5333] rt_sigprocmask(SIG_SETMASK, [], [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5250] newfstatat(AT_FDCWD, "./3/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5333] memfd_create("syzkaller", 0 [pid 5250] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5334] set_robust_list(0x555571b2b6a0, 24 [pid 5250] newfstatat(4, "", [pid 5253] <... umount2 resumed>) = 0 [pid 5333] <... memfd_create resumed>) = 3 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5250] getdents64(4, [pid 5334] chdir("./4" [pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5250] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] close(4) = 0 [pid 5334] <... chdir resumed>) = 0 [pid 5250] rmdir("./3/bus" [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... rmdir resumed>) = 0 [pid 5334] <... prctl resumed>) = 0 [pid 5334] setpgid(0, 0) = 0 [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5250] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5250] close(3 [pid 5333] <... mmap resumed>) = 0x7f420a800000 [pid 5253] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... close resumed>) = 0 [pid 5334] write(3, "1000", 4) = 4 [pid 5250] rmdir("./3" [pid 5334] close(3 [pid 5250] <... rmdir resumed>) = 0 [pid 5334] <... close resumed>) = 0 [pid 5334] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5250] mkdir("./4", 0777 [pid 5334] write(1, "executing program\n", 18) = 18 executing program [pid 5250] <... mkdir resumed>) = 0 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] <... umount2 resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5334] <... futex resumed>) = 0 [pid 5253] newfstatat(AT_FDCWD, "./3/bus", [pid 5334] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5334] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5253] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... openat resumed>) = 3 [pid 5334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5253] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5334] <... mmap resumed>) = 0x7f4212c28000 [pid 5253] <... openat resumed>) = 4 [pid 5334] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... ioctl resumed>) = 0 [pid 5334] <... mprotect resumed>) = 0 [pid 5252] newfstatat(AT_FDCWD, "./3/bus", [pid 5250] close(3 [pid 5332] <... sync resumed>) = 0 [ 144.109756][ T5329] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.120794][ T5329] Remounting filesystem read-only [ 144.136312][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 144.145980][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [pid 5253] newfstatat(4, "", [pid 5334] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5332] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5332] <... futex resumed>) = 0 [pid 5253] getdents64(4, [pid 5252] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5332] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] getdents64(4, [pid 5334] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5252] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5250] <... close resumed>) = 0 [pid 5334] <... clone3 resumed> => {parent_tid=[5335]}, 88) = 5335 [pid 5252] newfstatat(4, "", [pid 5334] rt_sigprocmask(SIG_SETMASK, [], [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] close(4 [pid 5334] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5333] <... write resumed>) = 1048576 [pid 5253] <... close resumed>) = 0 [pid 5252] getdents64(4, [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] rmdir("./3/bus"./strace-static-x86_64: Process 5335 attached [pid 5334] <... futex resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5336 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... rmdir resumed>) = 0 [pid 5252] getdents64(4, [pid 5253] getdents64(3, [pid 5335] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5253] close(3 [pid 5335] <... rseq resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5252] close(4 [pid 5253] rmdir("./3" [pid 5335] set_robust_list(0x7f4212c489a0, 24 [pid 5252] <... close resumed>) = 0 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5252] rmdir("./3/bus"./strace-static-x86_64: Process 5336 attached [pid 5335] rt_sigprocmask(SIG_SETMASK, [], [pid 5333] munmap(0x7f420a800000, 138412032 [pid 5253] <... rmdir resumed>) = 0 [pid 5252] <... rmdir resumed>) = 0 [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] sync( [pid 5253] mkdir("./4", 0777) = 0 [pid 5252] getdents64(3, [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5336] set_robust_list(0x555571b2b6a0, 24 [pid 5333] <... munmap resumed>) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5252] close(3 [pid 5333] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5253] ioctl(3, LOOP_CLR_FD [pid 5333] <... openat resumed>) = 4 [pid 5252] <... close resumed>) = 0 [pid 5333] ioctl(4, LOOP_SET_FD, 3 [pid 5253] <... ioctl resumed>) = 0 [pid 5253] close(3 [pid 5252] rmdir("./3") = 0 [pid 5252] mkdir("./4", 0777 [pid 5253] <... close resumed>) = 0 [pid 5252] <... mkdir resumed>) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5337 attached [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... sync resumed>) = 0 [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5337] set_robust_list(0x555571b2b6a0, 24 [pid 5336] chdir("./4" [pid 5337] <... set_robust_list resumed>) = 0 [pid 5336] <... chdir resumed>) = 0 [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5337 [pid 5252] <... ioctl resumed>) = 0 [pid 5335] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5252] close(3 [pid 5337] chdir("./4" [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] <... chdir resumed>) = 0 [pid 5336] <... prctl resumed>) = 0 [pid 5335] memfd_create("syzkaller", 0 [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5336] setpgid(0, 0 [pid 5334] <... futex resumed>) = 0 [pid 5337] <... prctl resumed>) = 0 [pid 5336] <... setpgid resumed>) = 0 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5337] setpgid(0, 0) = 0 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] <... memfd_create resumed>) = 3 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5336] <... openat resumed>) = 3 [pid 5337] <... openat resumed>) = 3 [pid 5336] write(3, "1000", 4 [pid 5335] <... mmap resumed>) = 0x7f420a800000 [pid 5252] <... close resumed>) = 0 [pid 5337] write(3, "1000", 4 [pid 5336] <... write resumed>) = 4 [pid 5337] <... write resumed>) = 4 [pid 5337] close(3 [pid 5336] close(3 [pid 5335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5333] <... ioctl resumed>) = 0 [pid 5337] <... close resumed>) = 0 [pid 5336] <... close resumed>) = 0 [pid 5337] symlink("/dev/binderfs", "./binderfs" [pid 5336] symlink("/dev/binderfs", "./binderfs" [pid 5333] close(3 [pid 5337] <... symlink resumed>) = 0 [pid 5336] <... symlink resumed>) = 0 [pid 5333] <... close resumed>) = 0 [pid 5333] close(4executing program executing program [pid 5337] write(1, "executing program\n", 18 [pid 5336] write(1, "executing program\n", 18 [pid 5337] <... write resumed>) = 18 [pid 5336] <... write resumed>) = 18 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = 0 [pid 5333] <... close resumed>) = 0 [pid 5337] <... futex resumed>) = 0 [pid 5336] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5333] mkdir("./bus", 0777 [pid 5337] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5336] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5338 [ 144.264855][ T5333] loop0: detected capacity change from 0 to 2048 ./strace-static-x86_64: Process 5338 attached [pid 5337] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5333] <... mkdir resumed>) = 0 [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5333] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5338] set_robust_list(0x555571b2b6a0, 24 [pid 5337] <... mmap resumed>) = 0x7f4212c28000 [pid 5336] <... mmap resumed>) = 0x7f4212c28000 [pid 5337] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5336] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5338] <... set_robust_list resumed>) = 0 [pid 5338] chdir("./4" [pid 5337] <... mprotect resumed>) = 0 [pid 5336] <... mprotect resumed>) = 0 [pid 5338] <... chdir resumed>) = 0 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5336] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5338] <... prctl resumed>) = 0 [pid 5337] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5336] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5338] setpgid(0, 0 [pid 5337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5339 attached [pid 5338] <... setpgid resumed>) = 0 [pid 5336] <... clone3 resumed> => {parent_tid=[5339]}, 88) = 5339 [pid 5339] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053./strace-static-x86_64: Process 5340 attached [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] <... rseq resumed>) = 0 [pid 5337] <... clone3 resumed> => {parent_tid=[5340]}, 88) = 5340 [pid 5336] rt_sigprocmask(SIG_SETMASK, [], [pid 5339] set_robust_list(0x7f4212c489a0, 24 [pid 5337] rt_sigprocmask(SIG_SETMASK, [], [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] <... openat resumed>) = 3 [pid 5340] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5339] rt_sigprocmask(SIG_SETMASK, [], [pid 5338] write(3, "1000", 4 [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] <... write resumed>) = 1048576 [pid 5340] <... rseq resumed>) = 0 [pid 5339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5338] <... write resumed>) = 4 [pid 5337] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = 0 [pid 5333] <... mount resumed>) = 0 [pid 5340] set_robust_list(0x7f4212c489a0, 24 [pid 5339] sync( [pid 5338] close(3 [pid 5337] <... futex resumed>) = 0 [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5335] munmap(0x7f420a800000, 138412032 [pid 5333] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5340] <... set_robust_list resumed>) = 0 [pid 5338] <... close resumed>) = 0 [pid 5337] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5335] <... munmap resumed>) = 0 [pid 5333] <... openat resumed>) = 3 [pid 5340] rt_sigprocmask(SIG_SETMASK, [], [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 5335] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5333] chdir("./bus" [pid 5340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5340] sync( [pid 5335] <... openat resumed>) = 4 [pid 5333] <... chdir resumed>) = 0 [pid 5335] ioctl(4, LOOP_SET_FD, 3executing program [pid 5338] <... symlink resumed>) = 0 [pid 5333] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5338] write(1, "executing program\n", 18) = 18 [pid 5333] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5338] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5333] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5333] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5338] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5333] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5331] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... sync resumed>) = 0 [pid 5338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5332] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5332] mkdir("./bus", 000 [pid 5331] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] <... futex resumed>) = 1 [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5336] <... futex resumed>) = 0 [pid 5339] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] <... mmap resumed>) = 0x7f4212c28000 [pid 5338] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5338] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... futex resumed>) = 0 [pid 5338] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5336] <... futex resumed>) = 1 [pid 5332] <... mkdir resumed>) = 0 [pid 5338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5342 attached [pid 5339] memfd_create("syzkaller", 0 [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5332] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... memfd_create resumed>) = 3 [pid 5338] <... clone3 resumed> => {parent_tid=[5342]}, 88) = 5342 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5332] <... futex resumed>) = 1 [pid 5331] <... futex resumed>) = 0 [pid 5342] <... rseq resumed>) = 0 [ 144.342093][ T5341] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 144.369547][ T5335] loop2: detected capacity change from 0 to 2048 [pid 5338] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... mmap resumed>) = 0x7f420a800000 [pid 5338] <... futex resumed>) = 0 [pid 5332] chdir("./bus" [pid 5331] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] set_robust_list(0x7f4212c489a0, 24) = 0 [pid 5342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5342] sync( [pid 5335] <... ioctl resumed>) = 0 [pid 5335] close(3) = 0 [pid 5335] close(4 [pid 5332] <... chdir resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5332] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5332] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5337] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5332] mkdirat(AT_FDCWD, "./file1", 000 [pid 5331] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = 0 [pid 5335] <... close resumed>) = 0 [pid 5331] <... futex resumed>) = 0 [pid 5335] mkdir("./bus", 0777 [pid 5331] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5335] <... mkdir resumed>) = 0 [pid 5335] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5337] <... mmap resumed>) = 0x7f4212c07000 [pid 5337] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5337] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5344 attached [pid 5338] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5338] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5344] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5337] <... clone3 resumed> => {parent_tid=[5344]}, 88) = 5344 [pid 5344] <... rseq resumed>) = 0 [pid 5338] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5337] rt_sigprocmask(SIG_SETMASK, [], [pid 5344] set_robust_list(0x7f4212c279a0, 24 [pid 5338] <... mprotect resumed>) = 0 [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5337] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] rt_sigprocmask(SIG_SETMASK, [], [pid 5337] <... futex resumed>) = 0 [pid 5344] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5344] memfd_create("syzkaller", 0 [pid 5337] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5344] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5345 attached [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5338] <... clone3 resumed> => {parent_tid=[5345]}, 88) = 5345 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] <... rseq resumed>) = 0 [pid 5338] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] set_robust_list(0x7f4212c279a0, 24 [pid 5338] <... futex resumed>) = 0 [pid 5335] <... mount resumed>) = 0 [pid 5345] <... set_robust_list resumed>) = 0 [pid 5338] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 144.398799][ T5341] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.428449][ T5343] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5335] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5345] rt_sigprocmask(SIG_SETMASK, [], [pid 5335] <... openat resumed>) = 3 [pid 5335] chdir("./bus") = 0 [pid 5335] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] memfd_create("syzkaller", 0 [pid 5335] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5334] <... futex resumed>) = 0 [pid 5345] <... memfd_create resumed>) = 3 [pid 5335] mkdir("./bus", 000 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5331] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5345] <... mmap resumed>) = 0x7f420a800000 [pid 5335] <... mkdir resumed>) = 0 [pid 5331] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5333] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5335] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5333] chdir("./bus" [pid 5331] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] <... write resumed>) = 1048576 [pid 5335] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5334] <... futex resumed>) = 0 [pid 5344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5335] chdir("./bus" [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5335] <... chdir resumed>) = 0 [pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] munmap(0x7f420a800000, 138412032 [pid 5335] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5335] mkdirat(AT_FDCWD, "./file1", 000) = 0 [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5334] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] <... munmap resumed>) = 0 [pid 5334] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5335] chdir("./bus") = -1 ENOENT (No such file or directory) [pid 5335] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5335] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] exit_group(0 [pid 5335] <... futex resumed>) = ? [pid 5334] <... exit_group resumed>) = ? [pid 5335] +++ exited with 0 +++ [pid 5334] +++ exited with 0 +++ [ 144.461137][ T5341] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5339] ioctl(4, LOOP_SET_FD, 3 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5251] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5251] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5251] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5251] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] unlink("./4/binderfs") = 0 [ 144.507430][ T5339] loop1: detected capacity change from 0 to 2048 [ 144.520250][ T5341] Remounting filesystem read-only [ 144.531279][ T5343] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.533725][ T5333] NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [pid 5251] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5345] <... write resumed>) = 1048576 [pid 5344] <... write resumed>) = 1048576 [pid 5339] <... ioctl resumed>) = 0 [pid 5332] <... mkdirat resumed>) = -1 EIO (Input/output error) [pid 5331] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5345] munmap(0x7f420a800000, 138412032) = 0 [pid 5345] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5345] ioctl(4, LOOP_SET_FD, 3 [pid 5344] munmap(0x7f420a800000, 138412032 [pid 5339] close(3 [pid 5332] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] <... close resumed>) = 0 [pid 5332] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] <... munmap resumed>) = 0 [pid 5339] close(4 [pid 5333] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5339] <... close resumed>) = 0 [pid 5333] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] mkdir("./bus", 0777 [pid 5333] <... futex resumed>) = 0 [pid 5344] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5339] <... mkdir resumed>) = 0 [pid 5333] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5339] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5331] exit_group(0 [pid 5333] <... futex resumed>) = ? [pid 5332] <... futex resumed>) = ? [pid 5331] <... exit_group resumed>) = ? [ 144.547074][ T5345] loop3: detected capacity change from 0 to 2048 [ 144.560671][ T5343] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.587066][ T5343] Remounting filesystem read-only [ 144.589580][ T5346] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5344] <... openat resumed>) = 4 [pid 5345] <... ioctl resumed>) = 0 [pid 5339] <... mount resumed>) = 0 [pid 5333] +++ exited with 0 +++ [pid 5344] ioctl(4, LOOP_SET_FD, 3 [pid 5332] +++ exited with 0 +++ [pid 5331] +++ exited with 0 +++ [pid 5345] close(3) = 0 [pid 5339] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5345] close(4 [pid 5339] <... openat resumed>) = 3 [pid 5344] <... ioctl resumed>) = 0 [pid 5345] <... close resumed>) = 0 [pid 5344] close(3 [pid 5339] chdir("./bus" [pid 5345] mkdir("./bus", 0777 [pid 5344] <... close resumed>) = 0 [pid 5339] <... chdir resumed>) = 0 [pid 5345] <... mkdir resumed>) = 0 [pid 5344] close(4 [pid 5339] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5249] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5345] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5344] <... close resumed>) = 0 [pid 5339] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5344] mkdir("./bus", 0777 [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5339] <... futex resumed>) = 1 [pid 5336] <... futex resumed>) = 0 [pid 5249] newfstatat(3, "", [pid 5339] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5339] mkdir("./bus", 000 [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] <... mkdir resumed>) = 0 [pid 5249] getdents64(3, [pid 5344] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5339] <... mkdir resumed>) = 0 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5339] <... futex resumed>) = 1 [pid 5336] <... futex resumed>) = 0 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5339] chdir("./bus" [pid 5336] <... futex resumed>) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5339] <... chdir resumed>) = 0 [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 144.599479][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 144.612643][ T5344] loop4: detected capacity change from 0 to 2048 [pid 5249] unlink("./4/binderfs" [pid 5344] <... mount resumed>) = 0 [pid 5339] <... futex resumed>) = 0 [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... umount2 resumed>) = 0 [pid 5249] <... unlink resumed>) = 0 [pid 5251] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./4/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5251] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5251] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5251] getdents64(4, [pid 5344] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5339] mkdirat(AT_FDCWD, "./file1", 000 [pid 5336] <... futex resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] close(4 [pid 5344] <... openat resumed>) = 3 [pid 5251] <... close resumed>) = 0 [pid 5251] rmdir("./4/bus") = 0 [pid 5251] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [ 144.655568][ T5347] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 144.665793][ T5348] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 144.679251][ T5346] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.696936][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5344] chdir("./bus" [pid 5251] close(3) = 0 [pid 5251] rmdir("./4") = 0 [pid 5251] mkdir("./5", 0777 [pid 5345] <... mount resumed>) = 0 [pid 5344] <... chdir resumed>) = 0 [pid 5251] <... mkdir resumed>) = 0 [pid 5344] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5345] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5345] chdir("./bus" [pid 5344] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5251] <... openat resumed>) = 3 [pid 5345] <... chdir resumed>) = 0 [pid 5344] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5344] <... futex resumed>) = 1 [pid 5337] <... futex resumed>) = 0 [pid 5251] ioctl(3, LOOP_CLR_FD [pid 5345] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5344] mkdir("./bus", 000 [pid 5337] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... ioctl resumed>) = 0 [pid 5337] <... futex resumed>) = 0 [pid 5251] close(3 [pid 5345] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5344] <... mkdir resumed>) = 0 [pid 5337] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5344] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5344] <... futex resumed>) = 0 [ 144.705754][ T5346] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.706598][ T5346] Remounting filesystem read-only [ 144.734524][ T5347] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5251] <... close resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5345] <... futex resumed>) = 1 [pid 5344] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] <... sync resumed>) = 0 [pid 5339] <... mkdirat resumed>) = 0 [pid 5338] <... futex resumed>) = 0 [pid 5337] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5249] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5349 attached [pid 5345] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = 0 [pid 5336] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] set_robust_list(0x555571b2b6a0, 24 [pid 5345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5344] chdir("./bus" [pid 5340] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... futex resumed>) = 0 [pid 5338] <... futex resumed>) = 0 [pid 5337] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] <... futex resumed>) = 0 [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5349 [pid 5349] <... set_robust_list resumed>) = 0 [pid 5345] mkdir("./bus", 000 [pid 5344] <... chdir resumed>) = 0 [pid 5340] <... futex resumed>) = 0 [pid 5339] chdir("./bus" [pid 5338] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] newfstatat(AT_FDCWD, "./4/bus", [pid 5349] chdir("./5" [pid 5344] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5349] <... chdir resumed>) = 0 [pid 5344] <... futex resumed>) = 1 [pid 5337] <... futex resumed>) = 0 [pid 5249] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] <... prctl resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5349] setpgid(0, 0 [pid 5249] <... openat resumed>) = 4 [pid 5349] <... setpgid resumed>) = 0 [pid 5249] newfstatat(4, "", [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5349] <... openat resumed>) = 3 [pid 5249] getdents64(4, [pid 5349] write(3, "1000", 4 [pid 5249] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5349] <... write resumed>) = 4 [pid 5249] close(4 [pid 5345] <... mkdir resumed>) = 0 [pid 5344] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] <... sync resumed>) = 0 [pid 5339] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5337] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] <... futex resumed>) = 0 [pid 5339] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = 1 [pid 5345] <... futex resumed>) = 1 [pid 5342] <... futex resumed>) = 0 [pid 5340] mkdirat(AT_FDCWD, "./file1", 000 [pid 5339] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5337] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] <... futex resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5349] close(3 [pid 5345] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5339] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] exit_group(0 [pid 5349] <... close resumed>) = 0 [pid 5339] <... futex resumed>) = ? [ 144.750591][ T5347] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.760919][ T5347] Remounting filesystem read-only [ 144.793095][ T5339] NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [pid 5336] <... exit_group resumed>) = ? [pid 5349] symlink("/dev/binderfs", "./binderfs" [pid 5342] chdir("./bus" [pid 5339] +++ exited with 0 +++ [pid 5338] <... futex resumed>) = 0 [pid 5336] +++ exited with 0 +++ [pid 5249] rmdir("./4/bus"executing program [pid 5349] <... symlink resumed>) = 0 [pid 5342] <... chdir resumed>) = 0 [pid 5340] <... mkdirat resumed>) = -1 EROFS (Read-only file system) [pid 5338] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5249] <... rmdir resumed>) = 0 [pid 5349] write(1, "executing program\n", 18 [pid 5340] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] getdents64(3, [pid 5349] <... write resumed>) = 18 [pid 5337] <... futex resumed>) = 0 [pid 5337] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5340] <... futex resumed>) = 1 [pid 5337] <... futex resumed>) = 0 [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] close(3 [pid 5340] chdir("./bus" [pid 5349] <... futex resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5342] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5342] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5349] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5338] <... futex resumed>) = 0 [pid 5249] rmdir("./4" [pid 5340] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5349] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5338] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... rmdir resumed>) = 0 [pid 5349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5342] <... futex resumed>) = 0 [pid 5340] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] <... futex resumed>) = 1 [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5342] mkdirat(AT_FDCWD, "./file1", 000 [pid 5340] <... futex resumed>) = 1 [pid 5338] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5342] <... mkdirat resumed>) = 0 [pid 5340] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5337] <... futex resumed>) = 0 [pid 5249] mkdir("./5", 0777 [pid 5349] <... mmap resumed>) = 0x7f4212c28000 [pid 5342] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] exit_group(0 [pid 5349] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5342] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5250] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5349] <... mprotect resumed>) = 0 [pid 5342] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5349] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5250] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5344] <... futex resumed>) = ? [pid 5342] chdir("./bus" [pid 5337] <... exit_group resumed>) = ? [pid 5349] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5344] +++ exited with 0 +++ [pid 5342] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5338] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... openat resumed>) = 3 [pid 5349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5342] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5340] <... futex resumed>) = ? [pid 5338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5350 attached [pid 5342] <... futex resumed>) = 0 [pid 5250] newfstatat(3, "", [pid 5349] <... clone3 resumed> => {parent_tid=[5350]}, 88) = 5350 [pid 5342] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] exit_group(0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5350] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5349] rt_sigprocmask(SIG_SETMASK, [], [pid 5345] <... futex resumed>) = ? [pid 5342] <... futex resumed>) = ? [pid 5338] <... exit_group resumed>) = ? [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5350] <... rseq resumed>) = 0 [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5345] +++ exited with 0 +++ [pid 5342] +++ exited with 0 +++ [pid 5340] +++ exited with 0 +++ [pid 5337] +++ exited with 0 +++ [pid 5249] <... openat resumed>) = 3 [pid 5350] set_robust_list(0x7f4212c489a0, 24 [pid 5349] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] getdents64(3, [pid 5350] <... set_robust_list resumed>) = 0 [pid 5349] <... futex resumed>) = 0 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5249] ioctl(3, LOOP_CLR_FD [pid 5350] rt_sigprocmask(SIG_SETMASK, [], [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5338] +++ exited with 0 +++ [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5250] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5350] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... ioctl resumed>) = 0 [pid 5350] sync( [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5249] close(3 [pid 5253] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5252] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5252] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5252] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 144.819696][ T5340] NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [ 144.841213][ T5340] NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [pid 5252] unlink("./4/binderfs" [pid 5253] newfstatat(3, "", [pid 5250] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] <... close resumed>) = 0 [pid 5252] <... unlink resumed>) = 0 [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5351 ./strace-static-x86_64: Process 5351 attached [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] unlink("./4/binderfs" [pid 5351] set_robust_list(0x555571b2b6a0, 24) = 0 [pid 5253] getdents64(3, [pid 5250] <... unlink resumed>) = 0 [pid 5351] chdir("./5" [pid 5250] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5253] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5351] <... chdir resumed>) = 0 [pid 5349] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 144.889695][ T5348] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 144.907702][ T5348] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 144.921020][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 144.922105][ T5348] Remounting filesystem read-only [pid 5253] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5351] <... prctl resumed>) = 0 [pid 5349] <... futex resumed>) = 0 [pid 5253] unlink("./4/binderfs" [pid 5351] setpgid(0, 0 [pid 5349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5351] <... setpgid resumed>) = 0 [pid 5349] <... mmap resumed>) = 0x7f4212c07000 [pid 5253] <... unlink resumed>) = 0 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5253] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5349] <... mprotect resumed>) = 0 [pid 5351] <... openat resumed>) = 3 [pid 5349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5351] write(3, "1000", 4) = 4 [pid 5351] close(3 [pid 5349] <... clone3 resumed> => {parent_tid=[5352]}, 88) = 5352 [pid 5351] <... close resumed>) = 0 [pid 5351] symlink("/dev/binderfs", "./binderfs" [pid 5349] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5352 attached executing program [pid 5252] <... umount2 resumed>) = 0 [pid 5351] <... symlink resumed>) = 0 [pid 5352] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053) = 0 [pid 5351] write(1, "executing program\n", 18 [pid 5349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5351] <... write resumed>) = 18 [pid 5349] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5349] <... futex resumed>) = 0 [pid 5351] <... futex resumed>) = 0 [pid 5349] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5352] set_robust_list(0x7f4212c279a0, 24 [pid 5351] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5352] <... set_robust_list resumed>) = 0 [pid 5351] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5252] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5352] memfd_create("syzkaller", 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] newfstatat(AT_FDCWD, "./4/bus", [pid 5352] <... memfd_create resumed>) = 3 [pid 5351] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5252] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5352] <... mmap resumed>) = 0x7f420a800000 [pid 5351] <... mmap resumed>) = 0x7f4212c28000 [pid 5253] <... umount2 resumed>) = 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... umount2 resumed>) = 0 [pid 5351] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5253] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5351] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] <... openat resumed>) = 4 [pid 5250] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5351] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] newfstatat(AT_FDCWD, "./4/bus", [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5351] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] newfstatat(4, "", [pid 5250] newfstatat(AT_FDCWD, "./4/bus", [pid 5253] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5353 attached [pid 5352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5350] <... sync resumed>) = 0 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] getdents64(4, [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5353] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5253] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5351] <... clone3 resumed> => {parent_tid=[5353]}, 88) = 5353 [pid 5253] <... openat resumed>) = 4 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5351] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] newfstatat(4, "", [pid 5250] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5351] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5353] <... rseq resumed>) = 0 [pid 5352] <... write resumed>) = 1048576 [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] getdents64(4, [pid 5250] <... openat resumed>) = 4 [pid 5353] set_robust_list(0x7f4212c489a0, 24 [pid 5352] munmap(0x7f420a800000, 138412032 [pid 5351] <... futex resumed>) = 0 [pid 5350] <... futex resumed>) = 0 [pid 5252] getdents64(4, [pid 5250] newfstatat(4, "", [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] <... munmap resumed>) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5350] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5353] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] getdents64(4, [pid 5353] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5252] close(4 [pid 5250] getdents64(4, [ 144.939739][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 144.940110][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when detaching log writer [ 144.966713][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5353] sync( [pid 5253] close(4 [pid 5252] <... close resumed>) = 0 [pid 5352] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5252] rmdir("./4/bus" [pid 5250] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5352] <... openat resumed>) = 4 [pid 5253] <... close resumed>) = 0 [pid 5253] rmdir("./4/bus" [pid 5250] getdents64(4, [pid 5352] ioctl(4, LOOP_SET_FD, 3 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5253] <... rmdir resumed>) = 0 [pid 5250] close(4) = 0 [pid 5250] rmdir("./4/bus") = 0 [pid 5253] getdents64(3, [pid 5250] getdents64(3, [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5353] <... sync resumed>) = 0 [pid 5352] <... ioctl resumed>) = 0 [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] close(3 [pid 5353] <... futex resumed>) = 1 [pid 5352] <... close resumed>) = 0 [pid 5351] <... futex resumed>) = 0 [pid 5353] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5352] close(4 [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] memfd_create("syzkaller", 0 [pid 5352] <... close resumed>) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5252] <... rmdir resumed>) = 0 [pid 5250] close(3 [pid 5353] <... memfd_create resumed>) = 3 [pid 5352] mkdir("./bus", 0777 [pid 5353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] <... mkdir resumed>) = 0 [pid 5253] close(3 [pid 5252] getdents64(3, [pid 5250] <... close resumed>) = 0 [pid 5353] <... mmap resumed>) = 0x7f420a800000 [pid 5253] <... close resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] rmdir("./4" [pid 5250] rmdir("./4" [pid 5352] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5253] <... rmdir resumed>) = 0 [pid 5250] <... rmdir resumed>) = 0 [pid 5253] mkdir("./5", 0777 [pid 5250] mkdir("./5", 0777 [pid 5253] <... mkdir resumed>) = 0 [pid 5252] close(3 [pid 5250] <... mkdir resumed>) = 0 [pid 5252] <... close resumed>) = 0 [pid 5252] rmdir("./4" [pid 5352] <... mount resumed>) = 0 [pid 5252] <... rmdir resumed>) = 0 [pid 5352] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5252] mkdir("./5", 0777 [pid 5352] chdir("./bus" [pid 5252] <... mkdir resumed>) = 0 [pid 5352] <... chdir resumed>) = 0 [pid 5352] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5352] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5352] <... futex resumed>) = 1 [pid 5352] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5252] <... openat resumed>) = 3 [pid 5252] ioctl(3, LOOP_CLR_FD) = 0 [pid 5252] close(3 [pid 5353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5349] <... futex resumed>) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5349] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... openat resumed>) = 3 [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] ioctl(3, LOOP_CLR_FD) = 0 [pid 5350] <... futex resumed>) = 0 [pid 5250] <... ioctl resumed>) = 0 [pid 5250] close(3 [pid 5350] mkdir("./bus", 000) = 0 [pid 5253] close(3 [pid 5250] <... close resumed>) = 0 [ 145.011434][ T5352] loop2: detected capacity change from 0 to 2048 [ 145.040588][ T5354] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5350] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... write resumed>) = 1048576 [pid 5353] munmap(0x7f420a800000, 138412032 [pid 5350] <... futex resumed>) = 1 [pid 5349] <... futex resumed>) = 0 [pid 5253] <... close resumed>) = 0 [pid 5252] <... close resumed>) = 0 [pid 5353] <... munmap resumed>) = 0 [pid 5350] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5353] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5349] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... openat resumed>) = 4 [pid 5353] ioctl(4, LOOP_SET_FD, 3 [pid 5350] <... futex resumed>) = 0 [pid 5349] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5355 attached [pid 5350] chdir("./bus" [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5355 [pid 5350] <... chdir resumed>) = 0 [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5350] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5356 attached [pid 5355] set_robust_list(0x555571b2b6a0, 24 [pid 5350] <... futex resumed>) = 1 [pid 5349] <... futex resumed>) = 0 [pid 5349] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] set_robust_list(0x555571b2b6a0, 24 [pid 5355] <... set_robust_list resumed>) = 0 [pid 5350] mkdirat(AT_FDCWD, "./file1", 000 [pid 5349] <... futex resumed>) = 0 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5356 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5356] <... set_robust_list resumed>) = 0 [pid 5355] chdir("./5" [pid 5350] <... mkdirat resumed>) = 0 [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] <... chdir resumed>) = 0 [pid 5350] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5357 attached [pid 5356] chdir("./5" [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5350] <... futex resumed>) = 0 [pid 5349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5357 [pid 5357] set_robust_list(0x555571b2b6a0, 24 [pid 5356] <... chdir resumed>) = 0 [pid 5355] <... prctl resumed>) = 0 [pid 5350] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5349] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... set_robust_list resumed>) = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... futex resumed>) = 0 [pid 5356] <... prctl resumed>) = 0 [pid 5350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5356] setpgid(0, 0 [pid 5355] setpgid(0, 0 [pid 5349] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5357] chdir("./5" [pid 5356] <... setpgid resumed>) = 0 [pid 5355] <... setpgid resumed>) = 0 [pid 5350] chdir("./bus" [pid 5357] <... chdir resumed>) = 0 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] <... openat resumed>) = 3 [pid 5357] <... prctl resumed>) = 0 [pid 5356] write(3, "1000", 4 [pid 5355] <... openat resumed>) = 3 [pid 5350] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] setpgid(0, 0 [pid 5356] <... write resumed>) = 4 [pid 5355] write(3, "1000", 4 [pid 5350] <... futex resumed>) = 1 [pid 5349] <... futex resumed>) = 0 [pid 5357] <... setpgid resumed>) = 0 [pid 5356] close(3 [pid 5355] <... write resumed>) = 4 [pid 5353] <... ioctl resumed>) = 0 [pid 5350] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5349] exit_group(0 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5356] <... close resumed>) = 0 [pid 5355] close(3 [pid 5353] close(3 [pid 5352] <... futex resumed>) = ? [pid 5350] <... futex resumed>) = ? [pid 5349] <... exit_group resumed>) = ? [pid 5357] <... openat resumed>) = 3 [pid 5356] symlink("/dev/binderfs", "./binderfs" [pid 5355] <... close resumed>) = 0 [pid 5353] <... close resumed>) = 0 [pid 5352] +++ exited with 0 +++ [pid 5350] +++ exited with 0 +++ [pid 5349] +++ exited with 0 +++ [pid 5357] write(3, "1000", 4 [pid 5355] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5356] <... symlink resumed>) = 0 [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5356] write(1, "executing program\n", 18 [pid 5251] <... restart_syscall resumed>) = 0 [pid 5251] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program ) = -1 EINVAL (Invalid argument) [pid 5356] <... write resumed>) = 18 [pid 5251] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] close(4 [pid 5251] <... openat resumed>) = 3 [pid 5356] <... futex resumed>) = 0 [pid 5353] <... close resumed>) = 0 [pid 5251] newfstatat(3, "", executing program [pid 5357] <... write resumed>) = 4 [pid 5356] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5355] write(1, "executing program\n", 18 [pid 5353] mkdir("./bus", 0777 [pid 5357] close(3 [pid 5355] <... write resumed>) = 18 [pid 5357] <... close resumed>) = 0 [pid 5357] symlink("/dev/binderfs", "./binderfs" [pid 5356] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... mkdir resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5357] <... symlink resumed>) = 0 [pid 5356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5355] <... futex resumed>) = 0 [pid 5353] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5251] getdents64(3, executing program [pid 5357] write(1, "executing program\n", 18 [pid 5356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5357] <... write resumed>) = 18 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5355] <... rt_sigaction resumed>NULL, 8) = 0 [ 145.109363][ T5353] loop0: detected capacity change from 0 to 2048 [pid 5251] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... mmap resumed>) = 0x7f4212c28000 [pid 5355] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5357] <... futex resumed>) = 0 [pid 5356] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5357] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5356] <... mprotect resumed>) = 0 [pid 5355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5357] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5356] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5355] <... mmap resumed>) = 0x7f4212c28000 [pid 5357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5356] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5355] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5355] <... mprotect resumed>) = 0 [pid 5251] newfstatat(AT_FDCWD, "./5/binderfs", ./strace-static-x86_64: Process 5358 attached [pid 5357] <... mmap resumed>) = 0x7f4212c28000 [pid 5251] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5358] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5356] <... clone3 resumed> => {parent_tid=[5358]}, 88) = 5358 [pid 5251] unlink("./5/binderfs" [pid 5358] <... rseq resumed>) = 0 [pid 5356] rt_sigprocmask(SIG_SETMASK, [], [pid 5251] <... unlink resumed>) = 0 [pid 5358] set_robust_list(0x7f4212c489a0, 24 [pid 5357] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5251] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5358] <... set_robust_list resumed>) = 0 [pid 5357] <... mprotect resumed>) = 0 [pid 5356] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5358] rt_sigprocmask(SIG_SETMASK, [], [pid 5357] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5356] <... futex resumed>) = 0 [pid 5358] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5357] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5358] sync( [pid 5357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5360 attached ./strace-static-x86_64: Process 5359 attached => {parent_tid=[5360]}, 88) = 5360 [pid 5357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5357] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5359] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5357] <... futex resumed>) = 0 [pid 5355] <... clone3 resumed> => {parent_tid=[5359]}, 88) = 5359 [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5359] <... rseq resumed>) = 0 [pid 5355] rt_sigprocmask(SIG_SETMASK, [], [pid 5360] <... rseq resumed>) = 0 [pid 5359] set_robust_list(0x7f4212c489a0, 24 [pid 5355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5353] <... mount resumed>) = 0 [pid 5360] set_robust_list(0x7f4212c489a0, 24 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5355] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5360] <... set_robust_list resumed>) = 0 [pid 5359] rt_sigprocmask(SIG_SETMASK, [], [pid 5355] <... futex resumed>) = 0 [pid 5360] rt_sigprocmask(SIG_SETMASK, [], [pid 5359] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5359] sync( [pid 5360] sync( [pid 5353] <... openat resumed>) = 3 [pid 5353] chdir("./bus") = 0 [pid 5353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5351] <... futex resumed>) = 0 [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5353] mkdir("./bus", 000 [pid 5356] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5356] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5356] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5356] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 145.191122][ T5361] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 145.197949][ T5354] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.227532][ T5354] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} => {parent_tid=[5362]}, 88) = 5362 [pid 5356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5356] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5362 attached [pid 5353] <... mkdir resumed>) = 0 [pid 5362] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053) = 0 [pid 5362] set_robust_list(0x7f4212c279a0, 24) = 0 [pid 5362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5362] memfd_create("syzkaller", 0) = 3 [pid 5362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5357] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5357] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5357] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} => {parent_tid=[5363]}, 88) = 5363 [pid 5357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5357] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5357] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5353] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5363 attached [pid 5353] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5351] <... futex resumed>) = 0 [pid 5353] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5351] <... futex resumed>) = 0 [pid 5363] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5355] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] chdir("./bus" [pid 5251] <... umount2 resumed>) = 0 [pid 5355] <... futex resumed>) = 0 [pid 5355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5355] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5355] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5364 attached [pid 5363] <... rseq resumed>) = 0 [pid 5353] <... chdir resumed>) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5251] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5363] set_robust_list(0x7f4212c279a0, 24 [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5363] <... set_robust_list resumed>) = 0 [pid 5353] <... futex resumed>) = 0 [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] newfstatat(AT_FDCWD, "./5/bus", [pid 5363] rt_sigprocmask(SIG_SETMASK, [], [pid 5353] mkdirat(AT_FDCWD, "./file1", 000 [pid 5351] <... futex resumed>) = 0 [pid 5363] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 145.239210][ T5354] Remounting filesystem read-only [ 145.245192][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 145.261915][ T5361] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.276922][ T5361] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [pid 5364] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5363] memfd_create("syzkaller", 0 [pid 5355] <... clone3 resumed> => {parent_tid=[5364]}, 88) = 5364 [pid 5251] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5364] <... rseq resumed>) = 0 [pid 5363] <... memfd_create resumed>) = 3 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5364] set_robust_list(0x7f4212c279a0, 24 [pid 5355] rt_sigprocmask(SIG_SETMASK, [], [pid 5364] <... set_robust_list resumed>) = 0 [pid 5355] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5364] rt_sigprocmask(SIG_SETMASK, [], [pid 5355] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5364] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5355] <... futex resumed>) = 0 [pid 5251] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5364] memfd_create("syzkaller", 0 [pid 5355] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5251] <... openat resumed>) = 4 [pid 5364] <... memfd_create resumed>) = 3 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5251] newfstatat(4, "", [pid 5364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5363] <... mmap resumed>) = 0x7f420a800000 [pid 5362] <... write resumed>) = 1048576 [pid 5353] <... mkdirat resumed>) = -1 EIO (Input/output error) [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5364] <... mmap resumed>) = 0x7f420a800000 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5362] munmap(0x7f420a800000, 138412032 [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] getdents64(4, [pid 5362] <... munmap resumed>) = 0 [pid 5353] <... futex resumed>) = 1 [pid 5351] <... futex resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5360] <... sync resumed>) = 0 [pid 5359] <... sync resumed>) = 0 [pid 5358] <... sync resumed>) = 0 [pid 5351] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] getdents64(4, [pid 5360] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] chdir("./bus" [pid 5351] <... futex resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5360] <... futex resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5358] <... futex resumed>) = 0 [pid 5351] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5362] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5360] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5358] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] close(4) = 0 [ 145.289041][ T5361] Remounting filesystem read-only [pid 5362] <... openat resumed>) = 4 [pid 5251] rmdir("./5/bus" [pid 5362] ioctl(4, LOOP_SET_FD, 3 [pid 5251] <... rmdir resumed>) = 0 [pid 5363] <... write resumed>) = 1048576 [pid 5362] <... ioctl resumed>) = 0 [pid 5364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5363] munmap(0x7f420a800000, 138412032 [pid 5362] close(3 [pid 5353] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5251] getdents64(3, [pid 5362] <... close resumed>) = 0 [pid 5353] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... munmap resumed>) = 0 [pid 5362] close(4 [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5362] <... close resumed>) = 0 [pid 5362] mkdir("./bus", 0777 [pid 5353] <... futex resumed>) = 1 [pid 5351] <... futex resumed>) = 0 [pid 5353] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5351] exit_group(0 [pid 5362] <... mkdir resumed>) = 0 [pid 5353] <... futex resumed>) = ? [pid 5351] <... exit_group resumed>) = ? [pid 5364] <... write resumed>) = 1048576 [pid 5353] +++ exited with 0 +++ [pid 5364] munmap(0x7f420a800000, 138412032 [pid 5363] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5362] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5351] +++ exited with 0 +++ [pid 5251] close(3 [pid 5364] <... munmap resumed>) = 0 [pid 5363] <... openat resumed>) = 4 [pid 5251] <... close resumed>) = 0 [ 145.319011][ T5362] loop4: detected capacity change from 0 to 2048 [ 145.319717][ T5353] NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [pid 5363] ioctl(4, LOOP_SET_FD, 3 [pid 5251] rmdir("./5") = 0 [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5364] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5364] ioctl(4, LOOP_SET_FD, 3 [pid 5249] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] mkdir("./6", 0777) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5251] ioctl(3, LOOP_CLR_FD) = 0 [pid 5251] close(3 [pid 5249] <... openat resumed>) = 3 [pid 5249] newfstatat(3, "", [pid 5363] <... ioctl resumed>) = 0 [pid 5363] close(3) = 0 [pid 5363] close(4) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5363] mkdir("./bus", 0777 [pid 5364] <... ioctl resumed>) = 0 [pid 5363] <... mkdir resumed>) = 0 [pid 5364] close(3) = 0 [pid 5364] close(4) = 0 [pid 5363] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5364] mkdir("./bus", 0777 [pid 5251] <... close resumed>) = 0 [pid 5364] <... mkdir resumed>) = 0 [pid 5249] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5364] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 145.375116][ T5363] loop3: detected capacity change from 0 to 2048 [ 145.383929][ T5364] loop1: detected capacity change from 0 to 2048 [ 145.391570][ T5365] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5249] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] unlink("./5/binderfs") = 0 [pid 5249] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5367 [pid 5364] <... mount resumed>) = 0 [pid 5364] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5364] chdir("./bus") = 0 [pid 5364] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5364] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5364] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5355] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5367 attached [pid 5362] <... mount resumed>) = 0 [pid 5367] set_robust_list(0x555571b2b6a0, 24 [pid 5363] <... mount resumed>) = 0 [pid 5362] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5355] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... set_robust_list resumed>) = 0 [pid 5367] chdir("./6" [pid 5359] <... futex resumed>) = 0 [pid 5355] <... futex resumed>) = 1 [pid 5367] <... chdir resumed>) = 0 [pid 5362] <... openat resumed>) = 3 [pid 5359] mkdir("./bus", 000 [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5363] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5362] chdir("./bus" [pid 5367] <... prctl resumed>) = 0 [pid 5363] <... openat resumed>) = 3 [pid 5362] <... chdir resumed>) = 0 [pid 5367] setpgid(0, 0 [pid 5363] chdir("./bus" [pid 5362] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5367] <... setpgid resumed>) = 0 [pid 5363] <... chdir resumed>) = 0 [pid 5362] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5363] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5362] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... openat resumed>) = 3 [pid 5363] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5362] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5367] write(3, "1000", 4 [pid 5363] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5362] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... write resumed>) = 4 [pid 5367] close(3 [pid 5363] <... futex resumed>) = 1 [pid 5358] <... futex resumed>) = 0 [pid 5357] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = 1 [pid 5367] <... close resumed>) = 0 [pid 5358] mkdir("./bus", 000 [pid 5367] symlink("/dev/binderfs", "./binderfs" [pid 5363] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5359] <... mkdir resumed>) = 0 [pid 5360] <... futex resumed>) = 0 [pid 5357] <... futex resumed>) = 1 [pid 5360] mkdir("./bus", 000 [pid 5367] <... symlink resumed>) = 0 [pid 5359] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] write(1, "executing program\n", 18 [pid 5360] <... mkdir resumed>) = 0 [pid 5359] <... futex resumed>) = 1 [pid 5358] <... mkdir resumed>) = 0 [pid 5355] <... futex resumed>) = 0 [pid 5367] <... write resumed>) = 18 [pid 5360] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5355] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 0 [pid 5356] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5358] chdir("./bus" [pid 5356] <... futex resumed>) = 0 [pid 5367] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5358] <... chdir resumed>) = 0 [pid 5367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5358] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5360] <... futex resumed>) = 1 [pid 5359] chdir("./bus" [pid 5358] <... futex resumed>) = 0 [pid 5357] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5367] <... mmap resumed>) = 0x7f4212c28000 [pid 5360] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] <... chdir resumed>) = 0 [pid 5358] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5359] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5357] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5367] <... mprotect resumed>) = 0 [pid 5360] chdir("./bus" [pid 5359] <... futex resumed>) = 1 [pid 5358] mkdirat(AT_FDCWD, "./file1", 000 [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5355] <... futex resumed>) = 0 [pid 5249] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5367] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5355] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... mkdirat resumed>) = 0 [pid 5367] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5360] <... chdir resumed>) = 0 [pid 5359] mkdirat(AT_FDCWD, "./file1", 000 [pid 5358] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] <... futex resumed>) = 0 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5360] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5369 attached ) = 1 [pid 5359] <... mkdirat resumed>) = 0 [pid 5358] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] newfstatat(AT_FDCWD, "./5/bus", [pid 5360] mkdirat(AT_FDCWD, "./file1", 000 [pid 5358] chdir("./bus" [pid 5357] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5357] <... futex resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5356] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5358] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5369] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5367] <... clone3 resumed> => {parent_tid=[5369]}, 88) = 5369 [pid 5360] <... mkdirat resumed>) = 0 [pid 5358] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5249] <... openat resumed>) = 4 [pid 5369] <... rseq resumed>) = 0 [pid 5369] set_robust_list(0x7f4212c489a0, 24) = 0 [pid 5369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5369] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] exit_group(0 [pid 5249] newfstatat(4, "", [pid 5356] <... exit_group resumed>) = ? [pid 5362] <... futex resumed>) = ? [pid 5367] rt_sigprocmask(SIG_SETMASK, [], [pid 5362] +++ exited with 0 +++ [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5360] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = 0 [ 145.429495][ T5366] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 145.442850][ T5368] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 145.442984][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5249] getdents64(4, [pid 5369] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 1 [pid 5360] chdir("./bus" [pid 5357] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5369] sync( [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5357] <... futex resumed>) = 0 [pid 5249] getdents64(4, [pid 5360] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] +++ exited with 0 +++ [pid 5357] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5356] +++ exited with 0 +++ [pid 5249] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5360] <... futex resumed>) = 0 [pid 5359] <... futex resumed>) = 1 [pid 5357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5355] <... futex resumed>) = 0 [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5249] close(4 [pid 5360] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] exit_group(0 [pid 5355] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] restart_syscall(<... resuming interrupted clone ...> [pid 5249] <... close resumed>) = 0 [pid 5363] <... futex resumed>) = ? [pid 5360] <... futex resumed>) = ? [pid 5359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5357] <... exit_group resumed>) = ? [pid 5355] <... futex resumed>) = 0 [pid 5249] rmdir("./5/bus" [pid 5363] +++ exited with 0 +++ [pid 5360] +++ exited with 0 +++ [pid 5359] chdir("./bus" [pid 5357] +++ exited with 0 +++ [pid 5355] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... restart_syscall resumed>) = 0 [pid 5249] <... rmdir resumed>) = 0 [pid 5359] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5249] getdents64(3, [pid 5359] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5359] <... futex resumed>) = 1 [pid 5355] <... futex resumed>) = 0 [pid 5253] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5359] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5355] exit_group(0 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] close(3 [pid 5359] <... futex resumed>) = ? [pid 5355] <... exit_group resumed>) = ? [pid 5253] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5359] +++ exited with 0 +++ [pid 5249] <... close resumed>) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5364] <... futex resumed>) = ? [pid 5253] newfstatat(3, "", [pid 5252] <... openat resumed>) = 3 [pid 5249] rmdir("./5" [pid 5364] +++ exited with 0 +++ [pid 5355] +++ exited with 0 +++ [pid 5252] newfstatat(3, "", [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5249] <... rmdir resumed>) = 0 [pid 5253] getdents64(3, [pid 5252] getdents64(3, [pid 5249] mkdir("./6", 0777 [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5249] <... mkdir resumed>) = 0 [pid 5252] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5250] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5253] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... openat resumed>) = 3 [pid 5250] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5249] ioctl(3, LOOP_CLR_FD [pid 5253] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5250] <... openat resumed>) = 3 [pid 5252] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] <... ioctl resumed>) = 0 [pid 5252] unlink("./5/binderfs" [pid 5250] newfstatat(3, "", [ 145.514139][ T5365] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.526754][ T5365] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 145.540858][ T5365] Remounting filesystem read-only [pid 5249] close(3 [pid 5253] unlink("./5/binderfs" [pid 5367] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5252] <... unlink resumed>) = 0 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] <... close resumed>) = 0 [pid 5253] <... unlink resumed>) = 0 [pid 5252] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] getdents64(3, [pid 5253] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5367] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5367] <... futex resumed>) = 0 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5367] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5367] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5371 attached [pid 5371] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5367] <... clone3 resumed> => {parent_tid=[5371]}, 88) = 5371 [pid 5371] <... rseq resumed>) = 0 [pid 5367] rt_sigprocmask(SIG_SETMASK, [], [pid 5371] set_robust_list(0x7f4212c279a0, 24 [pid 5367] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5367] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5370 [pid 5371] rt_sigprocmask(SIG_SETMASK, [], [pid 5367] <... futex resumed>) = 0 [pid 5371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5367] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5371] memfd_create("syzkaller", 0) = 3 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [pid 5250] newfstatat(AT_FDCWD, "./5/binderfs", ./strace-static-x86_64: Process 5370 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5370] set_robust_list(0x555571b2b6a0, 24 [pid 5250] unlink("./5/binderfs") = 0 [pid 5250] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5370] <... set_robust_list resumed>) = 0 [ 145.556796][ T5366] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.569089][ T5366] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 145.579895][ T5366] Remounting filesystem read-only [ 145.587281][ T5252] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 145.599427][ T5368] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5370] chdir("./6" [pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5370] <... chdir resumed>) = 0 [pid 5252] <... umount2 resumed>) = 0 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5370] <... prctl resumed>) = 0 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] setpgid(0, 0 [pid 5252] newfstatat(AT_FDCWD, "./5/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5370] <... setpgid resumed>) = 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5252] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5370] <... openat resumed>) = 3 [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] write(3, "1000", 4 [pid 5252] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5370] <... write resumed>) = 4 [pid 5252] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5370] close(3) = 0 [pid 5252] getdents64(4, [pid 5370] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5370] write(1, "executing program\n", 18 [pid 5252] getdents64(4, [pid 5370] <... write resumed>) = 18 [pid 5253] <... umount2 resumed>) = 0 [pid 5252] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] close(4 [pid 5370] <... futex resumed>) = 0 [pid 5370] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5252] <... close resumed>) = 0 [pid 5370] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5252] rmdir("./5/bus" [pid 5370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5371] <... write resumed>) = 1048576 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] newfstatat(AT_FDCWD, "./5/bus", [pid 5252] <... rmdir resumed>) = 0 [pid 5371] munmap(0x7f420a800000, 138412032 [pid 5370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] getdents64(3, [pid 5371] <... munmap resumed>) = 0 [pid 5370] <... mmap resumed>) = 0x7f4212c28000 [pid 5253] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5370] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5370] <... mprotect resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5370] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] <... openat resumed>) = 4 [pid 5370] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] newfstatat(4, "", [pid 5371] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5372 attached [pid 5371] <... openat resumed>) = 4 [pid 5253] getdents64(4, [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5372] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5370] <... clone3 resumed> => {parent_tid=[5372]}, 88) = 5372 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5372] <... rseq resumed>) = 0 [pid 5371] ioctl(4, LOOP_SET_FD, 3 [pid 5370] rt_sigprocmask(SIG_SETMASK, [], [ 145.611896][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 145.622640][ T5368] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 145.638213][ T5368] Remounting filesystem read-only [ 145.650342][ T5250] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5253] getdents64(4, [pid 5252] close(3 [pid 5372] set_robust_list(0x7f4212c489a0, 24 [pid 5252] <... close resumed>) = 0 [pid 5250] <... umount2 resumed>) = 0 [pid 5372] <... set_robust_list resumed>) = 0 [pid 5252] rmdir("./5" [pid 5372] rt_sigprocmask(SIG_SETMASK, [], [pid 5252] <... rmdir resumed>) = 0 [pid 5250] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5371] <... ioctl resumed>) = 0 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5252] mkdir("./6", 0777 [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] close(3 [pid 5370] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... sync resumed>) = 0 [pid 5253] close(4 [pid 5250] newfstatat(AT_FDCWD, "./5/bus", [pid 5372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5371] <... close resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5369] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... close resumed>) = 0 [pid 5252] <... mkdir resumed>) = 0 [pid 5372] sync( [pid 5371] close(4 [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... futex resumed>) = 0 [pid 5253] rmdir("./5/bus" [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5371] <... close resumed>) = 0 [pid 5369] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] <... rmdir resumed>) = 0 [pid 5371] mkdir("./bus", 0777 [pid 5253] getdents64(3, [pid 5371] <... mkdir resumed>) = 0 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] close(3) = 0 [pid 5253] rmdir("./5" [pid 5250] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5371] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5250] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5250] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5253] <... rmdir resumed>) = 0 [pid 5250] newfstatat(4, "", [pid 5253] mkdir("./6", 0777) = 0 [pid 5252] <... openat resumed>) = 3 [pid 5250] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5252] ioctl(3, LOOP_CLR_FD [pid 5253] <... openat resumed>) = 3 [pid 5252] <... ioctl resumed>) = 0 [pid 5250] getdents64(4, [pid 5253] ioctl(3, LOOP_CLR_FD) = 0 [pid 5252] close(3 [pid 5250] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5253] close(3) = 0 [pid 5252] <... close resumed>) = 0 [pid 5250] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5250] close(4 [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5371] <... mount resumed>) = 0 [pid 5252] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... close resumed>) = 0 [pid 5250] rmdir("./5/bus" [pid 5372] <... sync resumed>) = 0 [pid 5371] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5250] <... rmdir resumed>) = 0 [pid 5250] getdents64(3, [pid 5370] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5250] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5370] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] close(3 [pid 5370] <... futex resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5250] rmdir("./5" [pid 5371] <... openat resumed>) = 3 [pid 5370] <... mmap resumed>) = 0x7f4212c07000 [pid 5370] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5250] <... rmdir resumed>) = 0 [pid 5372] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] chdir("./bus" [pid 5372] <... futex resumed>) = 0 [pid 5250] mkdir("./6", 0777 [pid 5372] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] <... chdir resumed>) = 0 [pid 5370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5250] <... mkdir resumed>) = 0 [pid 5371] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5374 attached [pid 5371] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5250] <... openat resumed>) = 3 [pid 5374] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5371] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] ioctl(3, LOOP_CLR_FD [pid 5374] <... rseq resumed>) = 0 [pid 5367] <... futex resumed>) = 0 [pid 5374] set_robust_list(0x7f4212c279a0, 24 [pid 5250] <... ioctl resumed>) = 0 [pid 5367] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5371] <... futex resumed>) = 1 [pid 5374] rt_sigprocmask(SIG_SETMASK, [], [pid 5369] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 1 [pid 5371] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5250] close(3 [pid 5374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5370] <... clone3 resumed> => {parent_tid=[5374]}, 88) = 5374 [pid 5369] mkdir("./bus", 000 [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5376 attached ./strace-static-x86_64: Process 5375 attached [pid 5374] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] rt_sigprocmask(SIG_SETMASK, [], [pid 5250] <... close resumed>) = 0 [pid 5376] set_robust_list(0x555571b2b6a0, 24) = 0 [pid 5375] set_robust_list(0x555571b2b6a0, 24 [pid 5370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5375 [pid 5252] <... clone resumed>, child_tidptr=0x555571b2b690) = 5376 [pid 5376] chdir("./6" [pid 5370] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] <... chdir resumed>) = 0 [pid 5375] <... set_robust_list resumed>) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5370] <... futex resumed>) = 1 [ 145.669938][ T5371] loop2: detected capacity change from 0 to 2048 [ 145.708814][ T5373] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5369] <... mkdir resumed>) = 0 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] chdir("./6" [pid 5374] memfd_create("syzkaller", 0 [pid 5370] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5250] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] <... prctl resumed>) = 0 [pid 5375] <... chdir resumed>) = 0 [pid 5374] <... memfd_create resumed>) = 3 [pid 5369] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5369] <... futex resumed>) = 1 [pid 5375] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5377 attached [pid 5376] setpgid(0, 0 [pid 5375] setpgid(0, 0 [pid 5374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5369] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] <... futex resumed>) = 0 [pid 5375] <... setpgid resumed>) = 0 [pid 5367] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5369] <... futex resumed>) = 0 [pid 5367] <... futex resumed>) = 1 [pid 5374] <... mmap resumed>) = 0x7f420a800000 [pid 5369] chdir("./bus" [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... clone resumed>, child_tidptr=0x555571b2b690) = 5377 [pid 5369] <... chdir resumed>) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5369] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] <... setpgid resumed>) = 0 [pid 5369] <... futex resumed>) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] <... openat resumed>) = 3 [pid 5369] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5367] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] set_robust_list(0x555571b2b6a0, 24 [pid 5369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5367] <... futex resumed>) = 0 [pid 5377] <... set_robust_list resumed>) = 0 [pid 5376] <... openat resumed>) = 3 [pid 5369] mkdirat(AT_FDCWD, "./file1", 000 [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}executing program [pid 5377] chdir("./6" [pid 5376] write(3, "1000", 4 [pid 5369] <... mkdirat resumed>) = 0 [pid 5376] <... write resumed>) = 4 [pid 5369] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] close(3 [pid 5369] <... futex resumed>) = 1 [pid 5367] <... futex resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 5367] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... chdir resumed>) = 0 [pid 5376] symlink("/dev/binderfs", "./binderfs" [pid 5369] chdir("./bus" [pid 5367] <... futex resumed>) = 0 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] <... symlink resumed>) = 0 [pid 5369] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5367] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5377] <... prctl resumed>) = 0 [pid 5369] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] setpgid(0, 0 [pid 5376] write(1, "executing program\n", 18 [pid 5369] <... futex resumed>) = 0 [pid 5367] exit_group(0 [pid 5377] <... setpgid resumed>) = 0 [pid 5376] <... write resumed>) = 18 [pid 5371] <... futex resumed>) = ? [pid 5367] <... exit_group resumed>) = ? [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] write(3, "1000", 4 [pid 5371] +++ exited with 0 +++ [pid 5369] +++ exited with 0 +++ [pid 5367] +++ exited with 0 +++ [pid 5377] <... openat resumed>) = 3 [pid 5376] <... futex resumed>) = 0 [pid 5374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5375] <... write resumed>) = 4 [pid 5377] write(3, "1000", 4 [pid 5376] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5377] <... write resumed>) = 4 [pid 5375] close(3 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5377] close(3 [pid 5376] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5375] <... close resumed>) = 0 [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5377] <... close resumed>) = 0 [pid 5376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5375] symlink("/dev/binderfs", "./binderfs" [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5375] <... symlink resumed>) = 0 [pid 5376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5377] <... symlink resumed>) = 0 executing program [pid 5375] write(1, "executing program\n", 18 [pid 5376] <... mmap resumed>) = 0x7f4212c28000 [pid 5375] <... write resumed>) = 18 [pid 5376] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] <... mprotect resumed>) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5377] write(1, "executing program\n", 18 [pid 5375] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5376] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5375] <... rt_sigaction resumed>NULL, 8) = 0 executing program [pid 5375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5251] <... restart_syscall resumed>) = 0 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5377] <... write resumed>) = 18 [pid 5376] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5377] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5375] <... mmap resumed>) = 0x7f4212c28000 [pid 5251] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5375] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5378 attached [pid 5377] <... futex resumed>) = 0 [pid 5375] <... mprotect resumed>) = 0 [pid 5251] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5377] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5376] <... clone3 resumed> => {parent_tid=[5378]}, 88) = 5378 [pid 5251] <... openat resumed>) = 3 [pid 5377] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5376] rt_sigprocmask(SIG_SETMASK, [], [pid 5375] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5251] newfstatat(3, "", [pid 5377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5376] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5378] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5376] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] getdents64(3, [pid 5378] <... rseq resumed>) = 0 [pid 5375] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5376] <... futex resumed>) = 0 [pid 5251] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5251] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5379 attached [pid 5378] set_robust_list(0x7f4212c489a0, 24 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5374] <... write resumed>) = 1048576 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5379] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5375] <... clone3 resumed> => {parent_tid=[5379]}, 88) = 5379 [pid 5251] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5379] <... rseq resumed>) = 0 [pid 5375] rt_sigprocmask(SIG_SETMASK, [], [pid 5379] set_robust_list(0x7f4212c489a0, 24 [pid 5251] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5379] <... set_robust_list resumed>) = 0 [pid 5251] unlink("./6/binderfs" [pid 5379] rt_sigprocmask(SIG_SETMASK, [], [pid 5375] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5251] <... unlink resumed>) = 0 [pid 5379] sync( [pid 5375] <... futex resumed>) = 0 [pid 5251] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5378] <... set_robust_list resumed>) = 0 [pid 5377] <... mmap resumed>) = 0x7f4212c28000 [pid 5378] rt_sigprocmask(SIG_SETMASK, [], [pid 5377] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5378] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5377] <... mprotect resumed>) = 0 [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5374] munmap(0x7f420a800000, 138412032 [pid 5378] sync( [pid 5377] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5374] <... munmap resumed>) = 0 [pid 5377] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5374] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5374] <... openat resumed>) = 4 [pid 5374] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5380 attached [pid 5377] <... clone3 resumed> => {parent_tid=[5380]}, 88) = 5380 [pid 5377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5377] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5377] <... futex resumed>) = 0 [pid 5377] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5374] <... ioctl resumed>) = 0 [pid 5380] <... rseq resumed>) = 0 [pid 5380] set_robust_list(0x7f4212c489a0, 24 [pid 5374] close(3) = 0 [pid 5374] close(4) = 0 [pid 5374] mkdir("./bus", 0777) = 0 [pid 5374] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5380] <... set_robust_list resumed>) = 0 [pid 5380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5380] sync( [pid 5376] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5375] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5375] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5376] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5376] <... mmap resumed>) = 0x7f4212c07000 [pid 5376] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0}./strace-static-x86_64: Process 5381 attached => {parent_tid=[5381]}, 88) = 5381 [pid 5376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5376] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5376] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5375] <... mmap resumed>) = 0x7f4212c07000 [pid 5381] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [ 145.817252][ T5373] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.831328][ T5374] loop0: detected capacity change from 0 to 2048 [ 145.839479][ T5373] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 145.859912][ T5373] Remounting filesystem read-only [pid 5375] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5381] <... rseq resumed>) = 0 [pid 5375] <... mprotect resumed>) = 0 [pid 5381] set_robust_list(0x7f4212c279a0, 24) = 0 [pid 5375] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5381] rt_sigprocmask(SIG_SETMASK, [], [pid 5375] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5381] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5383 attached [pid 5374] <... mount resumed>) = 0 [pid 5374] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5374] chdir("./bus" [pid 5383] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5374] <... chdir resumed>) = 0 [pid 5383] <... rseq resumed>) = 0 [pid 5383] set_robust_list(0x7f4212c279a0, 24 [pid 5374] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5383] <... set_robust_list resumed>) = 0 [pid 5374] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5383] rt_sigprocmask(SIG_SETMASK, [], [pid 5374] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5374] <... futex resumed>) = 1 [pid 5383] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5374] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] <... futex resumed>) = 0 [pid 5370] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = 0 [pid 5370] <... futex resumed>) = 1 [pid 5372] mkdir("./bus", 000 [pid 5375] <... clone3 resumed> => {parent_tid=[5383]}, 88) = 5383 [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5381] <... memfd_create resumed>) = 3 [pid 5377] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5375] rt_sigprocmask(SIG_SETMASK, [], [pid 5377] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5375] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] <... mmap resumed>) = 0x7f420a800000 [pid 5377] <... mmap resumed>) = 0x7f4212c07000 [pid 5375] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5375] <... futex resumed>) = 1 [pid 5377] <... mprotect resumed>) = 0 [pid 5375] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5377] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5372] <... mkdir resumed>) = 0 [pid 5377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5372] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5384 attached ) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5377] <... clone3 resumed> => {parent_tid=[5384]}, 88) = 5384 [pid 5372] chdir("./bus" [pid 5370] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] rt_sigprocmask(SIG_SETMASK, [], [pid 5372] <... chdir resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5377] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5372] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5383] <... futex resumed>) = 0 [pid 5377] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = 0 [pid 5370] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5384] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5383] memfd_create("syzkaller", 0 [pid 5377] <... futex resumed>) = 0 [pid 5372] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... rseq resumed>) = 0 [pid 5383] <... memfd_create resumed>) = 3 [pid 5377] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5370] <... futex resumed>) = 0 [pid 5384] set_robust_list(0x7f4212c279a0, 24 [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5372] mkdirat(AT_FDCWD, "./file1", 000 [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] <... set_robust_list resumed>) = 0 [pid 5383] <... mmap resumed>) = 0x7f420a800000 [pid 5372] <... mkdirat resumed>) = 0 [pid 5384] rt_sigprocmask(SIG_SETMASK, [], [pid 5372] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5372] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5384] memfd_create("syzkaller", 0 [pid 5372] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5370] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5370] <... futex resumed>) = 0 [ 145.874411][ T5382] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 145.889239][ T5251] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5384] <... memfd_create resumed>) = 3 [pid 5381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5372] chdir("./bus" [pid 5370] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5372] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5384] <... mmap resumed>) = 0x7f420a800000 [pid 5372] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5370] exit_group(0 [pid 5374] <... futex resumed>) = ? [pid 5370] <... exit_group resumed>) = ? [pid 5374] +++ exited with 0 +++ [pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5381] <... write resumed>) = 1048576 [pid 5251] <... umount2 resumed>) = 0 [pid 5372] +++ exited with 0 +++ [pid 5370] +++ exited with 0 +++ [pid 5249] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5249] restart_syscall(<... resuming interrupted clone ...> [pid 5251] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5381] munmap(0x7f420a800000, 138412032 [pid 5251] newfstatat(AT_FDCWD, "./6/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] <... restart_syscall resumed>) = 0 [pid 5249] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5249] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5251] openat(AT_FDCWD, "./6/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] <... openat resumed>) = 4 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(4, "", [pid 5249] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5381] <... munmap resumed>) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5249] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5381] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5249] unlink("./6/binderfs" [pid 5381] <... openat resumed>) = 4 [pid 5249] <... unlink resumed>) = 0 [ 145.922418][ T5382] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 145.944293][ T5382] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [ 145.955443][ T5382] Remounting filesystem read-only [pid 5381] ioctl(4, LOOP_SET_FD, 3 [pid 5249] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5251] getdents64(4, 0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5379] <... sync resumed>) = 0 [pid 5251] getdents64(4, [pid 5379] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5379] <... futex resumed>) = 0 [pid 5251] close(4 [pid 5379] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] <... close resumed>) = 0 [pid 5251] rmdir("./6/bus") = 0 [pid 5251] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5251] close(3) = 0 [pid 5251] rmdir("./6") = 0 [pid 5383] <... write resumed>) = 1048576 [pid 5384] <... write resumed>) = 1048576 [pid 5381] <... ioctl resumed>) = 0 [pid 5383] munmap(0x7f420a800000, 138412032 [pid 5251] mkdir("./7", 0777 [pid 5384] munmap(0x7f420a800000, 138412032 [pid 5383] <... munmap resumed>) = 0 [pid 5381] close(3 [pid 5383] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5384] <... munmap resumed>) = 0 [pid 5381] <... close resumed>) = 0 [pid 5380] <... sync resumed>) = 0 [pid 5378] <... sync resumed>) = 0 [pid 5251] <... mkdir resumed>) = 0 [pid 5249] <... umount2 resumed>) = 0 [pid 5384] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5383] <... openat resumed>) = 4 [pid 5381] close(4 [pid 5380] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... openat resumed>) = 4 [pid 5378] <... futex resumed>) = 0 [pid 5381] <... close resumed>) = 0 [pid 5383] ioctl(4, LOOP_SET_FD, 3 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5378] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5380] <... futex resumed>) = 0 [pid 5381] mkdir("./bus", 0777 [pid 5251] <... openat resumed>) = 3 [pid 5380] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] ioctl(3, LOOP_CLR_FD) = 0 [pid 5251] close(3 [pid 5384] ioctl(4, LOOP_SET_FD, 3 [pid 5381] <... mkdir resumed>) = 0 [ 145.969550][ T5381] loop3: detected capacity change from 0 to 2048 [ 145.976881][ T5249] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 146.012258][ T5383] loop4: detected capacity change from 0 to 2048 [pid 5249] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5383] <... ioctl resumed>) = 0 [pid 5381] mount("/dev/loop3", "./bus", "nilfs2", 0, "" [pid 5251] <... close resumed>) = 0 [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5383] close(3) = 0 [pid 5383] close(4) = 0 [pid 5383] mkdir("./bus", 0777) = 0 [pid 5249] newfstatat(AT_FDCWD, "./6/bus", [pid 5251] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5249] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5383] mount("/dev/loop4", "./bus", "nilfs2", 0, "" [pid 5249] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] openat(AT_FDCWD, "./6/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5249] newfstatat(4, "", [pid 5251] <... clone resumed>, child_tidptr=0x555571b2b690) = 5385 [pid 5249] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5385 attached [pid 5384] <... ioctl resumed>) = 0 [pid 5249] getdents64(4, [pid 5385] set_robust_list(0x555571b2b6a0, 24 [pid 5249] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5249] getdents64(4, 0x555571b34770 /* 0 entries */, 32768) = 0 [pid 5249] close(4 [pid 5385] <... set_robust_list resumed>) = 0 [pid 5384] close(3 [pid 5249] <... close resumed>) = 0 [pid 5385] chdir("./7" [pid 5384] <... close resumed>) = 0 [pid 5383] <... mount resumed>) = 0 [pid 5249] rmdir("./6/bus" [pid 5381] <... mount resumed>) = 0 [pid 5384] close(4 [pid 5383] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5383] chdir("./bus" [pid 5249] <... rmdir resumed>) = 0 [pid 5384] <... close resumed>) = 0 [pid 5381] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5249] getdents64(3, [pid 5385] <... chdir resumed>) = 0 [pid 5384] mkdir("./bus", 0777 [pid 5383] <... chdir resumed>) = 0 [pid 5381] <... openat resumed>) = 3 [pid 5249] <... getdents64 resumed>0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5383] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5384] <... mkdir resumed>) = 0 [pid 5383] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] chdir("./bus" [pid 5249] close(3 [pid 5383] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5383] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] <... chdir resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5375] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... prctl resumed>) = 0 [pid 5249] rmdir("./6" [pid 5381] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5385] setpgid(0, 0 [pid 5249] <... rmdir resumed>) = 0 [pid 5385] <... setpgid resumed>) = 0 [pid 5381] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5249] mkdir("./7", 0777 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5384] mount("/dev/loop1", "./bus", "nilfs2", 0, "" [pid 5381] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5381] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] <... mkdir resumed>) = 0 [pid 5385] <... openat resumed>) = 3 [pid 5376] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5378] <... futex resumed>) = 0 [pid 5376] <... futex resumed>) = 1 [pid 5378] mkdir("./bus", 000 [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] <... openat resumed>) = 3 [pid 5379] mkdir("./bus", 000 [ 146.030816][ T5384] loop1: detected capacity change from 0 to 2048 [ 146.052802][ T5386] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 146.060257][ T5387] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5249] ioctl(3, LOOP_CLR_FD) = 0 [pid 5249] close(3 [pid 5385] write(3, "1000", 4) = 4 [pid 5385] close(3) = 0 [pid 5385] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5385] write(1, "executing program\n", 18) = 18 [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5385] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5385] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5379] <... mkdir resumed>) = 0 [pid 5378] <... mkdir resumed>) = 0 [pid 5378] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5385] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5388 attached => {parent_tid=[5388]}, 88) = 5388 [pid 5385] rt_sigprocmask(SIG_SETMASK, [], [pid 5388] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5388] <... rseq resumed>) = 0 [pid 5379] <... futex resumed>) = 1 [pid 5378] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5379] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5375] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] <... futex resumed>) = 0 [pid 5378] chdir("./bus" [pid 5375] <... futex resumed>) = 1 [pid 5379] chdir("./bus" [pid 5388] set_robust_list(0x7f4212c489a0, 24 [pid 5385] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5379] <... chdir resumed>) = 0 [pid 5388] <... set_robust_list resumed>) = 0 [pid 5388] rt_sigprocmask(SIG_SETMASK, [], [pid 5385] <... futex resumed>) = 0 [pid 5379] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5388] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... chdir resumed>) = 0 [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5388] sync( [pid 5379] <... futex resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5249] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5379] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5378] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 5390 attached [pid 5384] <... mount resumed>) = 0 [pid 5379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5378] <... futex resumed>) = 1 [pid 5376] <... futex resumed>) = 0 [pid 5375] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... clone resumed>, child_tidptr=0x555571b2b690) = 5390 [pid 5384] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5379] mkdirat(AT_FDCWD, "./file1", 000 [pid 5378] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] <... futex resumed>) = 0 [pid 5376] <... futex resumed>) = 0 [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] mkdirat(AT_FDCWD, "./file1", 000 [pid 5379] <... mkdirat resumed>) = 0 [pid 5379] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] <... openat resumed>) = 3 [pid 5379] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5384] chdir("./bus" [pid 5375] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] set_robust_list(0x555571b2b6a0, 24 [pid 5375] <... futex resumed>) = 0 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5379] chdir("./bus" [pid 5375] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5379] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5390] chdir("./7" [pid 5384] <... chdir resumed>) = 0 [pid 5379] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5379] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5390] <... chdir resumed>) = 0 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5390] setpgid(0, 0) = 0 [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 146.147906][ T5389] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 146.161216][ T5386] NILFS (loop3): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 146.173600][ T5386] NILFS error (device loop3): nilfs_bmap_propagate: broken bmap (inode number=2) [ 146.190789][ T5386] Remounting filesystem read-only [pid 5390] write(3, "1000", 4 [pid 5385] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5384] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5379] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5378] <... mkdirat resumed>) = -1 EIO (Input/output error) [pid 5375] exit_group(0 [pid 5390] <... write resumed>) = 4 [pid 5384] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = ? [pid 5379] <... futex resumed>) = ? [pid 5375] <... exit_group resumed>) = ? [pid 5390] close(3 [pid 5384] <... futex resumed>) = 1 [pid 5383] +++ exited with 0 +++ [pid 5379] +++ exited with 0 +++ [pid 5377] <... futex resumed>) = 0 [pid 5390] <... close resumed>) = 0 [pid 5377] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... futex resumed>) = 0 [pid 5377] <... futex resumed>) = 1 [pid 5380] mkdir("./bus", 000 [pid 5377] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5390] symlink("/dev/binderfs", "./binderfs" [pid 5385] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5384] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5380] <... mkdir resumed>) = 0 [pid 5378] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] +++ exited with 0 +++ [pid 5390] <... symlink resumed>) = 0 executing program [pid 5380] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] write(1, "executing program\n", 18 [pid 5380] <... futex resumed>) = 1 [pid 5377] <... futex resumed>) = 0 [pid 5390] <... write resumed>) = 18 [pid 5380] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 0 [pid 5390] <... futex resumed>) = 0 [pid 5380] chdir("./bus" [pid 5385] <... futex resumed>) = 0 [pid 5378] <... futex resumed>) = 1 [pid 5377] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5376] <... futex resumed>) = 0 [pid 5390] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, [pid 5385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5380] <... chdir resumed>) = 0 [pid 5378] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5385] <... mmap resumed>) = 0x7f4212c07000 [pid 5378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5376] <... futex resumed>) = 0 [pid 5253] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5385] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE [pid 5378] chdir("./bus" [pid 5376] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] <... mprotect resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5385] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5253] <... openat resumed>) = 3 [pid 5385] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5253] newfstatat(3, "", [pid 5385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5253] getdents64(3, [pid 5385] <... clone3 resumed> => {parent_tid=[5391]}, 88) = 5391 [pid 5253] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5385] rt_sigprocmask(SIG_SETMASK, [], [pid 5253] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5385] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5385] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5385] <... futex resumed>) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5391 attached [pid 5390] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5385] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5380] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5253] unlink("./6/binderfs") = 0 [ 146.198599][ T5387] NILFS (loop4): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 146.210197][ T5387] NILFS error (device loop4): nilfs_bmap_propagate: broken bmap (inode number=2) [ 146.221231][ T5387] Remounting filesystem read-only [ 146.228015][ T5389] NILFS (loop1): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [pid 5253] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5391] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5380] <... futex resumed>) = 0 [pid 5378] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5377] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... rseq resumed>) = 0 [pid 5390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5380] mkdirat(AT_FDCWD, "./file1", 000 [pid 5378] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = 0 [pid 5391] set_robust_list(0x7f4212c279a0, 24 [pid 5390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5378] <... futex resumed>) = 1 [pid 5377] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5391] <... set_robust_list resumed>) = 0 [pid 5390] <... mmap resumed>) = 0x7f4212c28000 [pid 5378] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5391] rt_sigprocmask(SIG_SETMASK, [], [pid 5390] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE [pid 5391] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5390] <... mprotect resumed>) = 0 [pid 5391] memfd_create("syzkaller", 0 [pid 5390] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5376] <... futex resumed>) = 0 [pid 5391] <... memfd_create resumed>) = 3 [pid 5390] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0} [pid 5376] exit_group(0./strace-static-x86_64: Process 5392 attached [pid 5391] <... mmap resumed>) = 0x7f420a800000 [pid 5392] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5390] <... clone3 resumed> => {parent_tid=[5392]}, 88) = 5392 [pid 5392] <... rseq resumed>) = 0 [pid 5390] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] set_robust_list(0x7f4212c489a0, 24 [pid 5391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5390] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5381] <... futex resumed>) = ? [pid 5378] <... futex resumed>) = ? [pid 5376] <... exit_group resumed>) = ? [pid 5392] <... set_robust_list resumed>) = 0 [pid 5390] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] +++ exited with 0 +++ [pid 5392] rt_sigprocmask(SIG_SETMASK, [], [pid 5390] <... futex resumed>) = 0 [pid 5392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5390] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5392] sync( [pid 5381] +++ exited with 0 +++ [pid 5376] +++ exited with 0 +++ [pid 5252] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5252] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5252] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5252] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5391] <... write resumed>) = 1048576 [pid 5253] <... umount2 resumed>) = 0 [pid 5252] newfstatat(3, "", [pid 5391] munmap(0x7f420a800000, 138412032 [pid 5253] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 146.240656][ T5378] NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=18) [ 146.244140][ T5389] NILFS error (device loop1): nilfs_bmap_propagate: broken bmap (inode number=2) [ 146.261565][ T5253] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 146.279595][ T5389] Remounting filesystem read-only [ 146.288657][ T5380] ------------[ cut here ]------------ [pid 5392] <... sync resumed>) = 0 [pid 5388] <... sync resumed>) = 0 [pid 5392] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5391] <... munmap resumed>) = 0 [pid 5388] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] getdents64(3, [pid 5392] <... futex resumed>) = 1 [pid 5390] <... futex resumed>) = 0 [pid 5388] <... futex resumed>) = 0 [pid 5392] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5390] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5388] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] newfstatat(AT_FDCWD, "./6/bus", [pid 5252] <... getdents64 resumed>0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5392] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5391] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5390] <... futex resumed>) = 0 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5392] memfd_create("syzkaller", 0 [pid 5391] <... openat resumed>) = 4 [pid 5390] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5253] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5377] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5252] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] <... memfd_create resumed>) = 3 [pid 5391] ioctl(4, LOOP_SET_FD, 3 [pid 5377] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5392] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5384] <... futex resumed>) = 0 [pid 5377] <... futex resumed>) = 1 [pid 5392] <... mmap resumed>) = 0x7f420a800000 [pid 5384] chdir("./bus" [pid 5377] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5392] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5391] <... ioctl resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./6/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5391] close(3 [pid 5253] <... openat resumed>) = 4 [pid 5252] unlink("./6/binderfs" [pid 5391] <... close resumed>) = 0 [pid 5253] newfstatat(4, "", [pid 5252] <... unlink resumed>) = 0 [ 146.294449][ T5380] WARNING: CPU: 0 PID: 5380 at fs/buffer.c:1177 mark_buffer_dirty+0x2e5/0x520 [ 146.303822][ T5380] Modules linked in: [ 146.307942][ T5380] CPU: 0 UID: 0 PID: 5380 Comm: syz-executor321 Not tainted 6.12.0-rc3-syzkaller-00013-geca631b8fe80 #0 [ 146.311914][ T5391] loop2: detected capacity change from 0 to 2048 [ 146.319146][ T5380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 146.319200][ T5380] RIP: 0010:mark_buffer_dirty+0x2e5/0x520 [pid 5391] close(4 [pid 5253] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5391] <... close resumed>) = 0 [pid 5253] getdents64(4, [pid 5391] mkdir("./bus", 0777 [pid 5253] <... getdents64 resumed>0x555571b34770 /* 2 entries */, 32768) = 48 [pid 5391] <... mkdir resumed>) = 0 [pid 5253] getdents64(4, [pid 5391] mount("/dev/loop2", "./bus", "nilfs2", 0, "" [pid 5253] <... getdents64 resumed>0x555571b34770 /* 0 entries */, 32768) = 0 [ 146.341558][ T5380] Code: 89 df e8 9e 89 db ff 48 8b 3b be 20 00 00 00 5b 41 5e 41 5f 5d e9 fb e8 fb ff e8 76 fc 74 ff e9 73 ff ff ff e8 6c fc 74 ff 90 <0f> 0b 90 e9 61 fd ff ff e8 5e fc 74 ff 90 0f 0b 90 e9 88 fd ff ff [ 146.361320][ T5380] RSP: 0018:ffffc900042879f8 EFLAGS: 00010293 [ 146.367593][ T5380] RAX: ffffffff821fea94 RBX: ffff8880685d5a01 RCX: ffff8880270bbc00 [ 146.375105][ T5393] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 146.375779][ T5380] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 146.375802][ T5380] RBP: 0000000000000000 R08: ffffffff821fe7f1 R09: 1ffff1100ebd34e8 [ 146.375821][ T5380] R10: dffffc0000000000 R11: ffffed100ebd34e9 R12: dffffc0000000000 [ 146.410500][ T5380] R13: ffffc90004287ac0 R14: ffff888075e9a740 R15: ffffc90004287ac0 [ 146.418571][ T5380] FS: 00007f4212c486c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 146.427631][ T5380] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.434295][ T5380] CR2: 00007ffcd107beac CR3: 0000000022792000 CR4: 00000000003526f0 [pid 5253] close(4) = 0 [pid 5253] rmdir("./6/bus") = 0 [pid 5253] getdents64(3, 0x555571b2c730 /* 0 entries */, 32768) = 0 [pid 5253] close(3) = 0 [pid 5253] rmdir("./6") = 0 [pid 5253] mkdir("./7", 0777) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5377] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5253] ioctl(3, LOOP_CLR_FD) = 0 [pid 5253] close(3) = 0 [pid 5391] <... mount resumed>) = 0 [pid 5391] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5391] chdir("./bus") = 0 [pid 5391] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5391] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5391] <... futex resumed>) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5385] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5391] futex(0x7f4212d1a6b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] mkdir("./bus", 000 [pid 5253] <... clone resumed>, child_tidptr=0x555571b2b690) = 5394 [pid 5388] <... mkdir resumed>) = 0 [pid 5388] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5385] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5388] chdir("./bus") = 0 [pid 5388] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5385] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5388] mkdirat(AT_FDCWD, "./file1", 000) = 0 [pid 5388] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5388] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5388] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5385] <... futex resumed>) = 0 [pid 5388] chdir("./bus" [pid 5385] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5388] <... chdir resumed>) = -1 ENOENT (No such file or directory) [pid 5388] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5385] <... futex resumed>) = 0 [pid 5388] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5385] exit_group(0 [pid 5391] <... futex resumed>) = ? [pid 5388] <... futex resumed>) = ? [pid 5385] <... exit_group resumed>) = ? [pid 5391] +++ exited with 0 +++ [pid 5388] +++ exited with 0 +++ [pid 5385] +++ exited with 0 +++ [ 146.442389][ T5380] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 146.450501][ T5380] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 146.458614][ T5380] Call Trace: [ 146.461949][ T5380] [ 146.464941][ T5380] ? __warn+0x168/0x4e0 [ 146.469232][ T5380] ? mark_buffer_dirty+0x2e5/0x520 [ 146.474426][ T5380] ? report_bug+0x2b3/0x500 [ 146.479084][ T5380] ? mark_buffer_dirty+0x2e5/0x520 [ 146.484275][ T5380] ? handle_bug+0x60/0x90 [ 146.488734][ T5380] ? exc_invalid_op+0x1a/0x50 [ 146.493478][ T5380] ? asm_exc_invalid_op+0x1a/0x20 [ 146.498666][ T5380] ? mark_buffer_dirty+0x41/0x520 [ 146.503762][ T5380] ? mark_buffer_dirty+0x2e4/0x520 [ 146.509013][ T5380] ? mark_buffer_dirty+0x2e5/0x520 [ 146.514196][ T5380] ? mark_buffer_dirty+0x2e4/0x520 [ 146.519498][ T5380] nilfs_palloc_commit_alloc_entry+0x4b/0x160 [ 146.525653][ T5380] nilfs_ifile_create_inode+0x1dd/0x3a0 [ 146.531418][ T5380] ? __pfx_nilfs_ifile_create_inode+0x10/0x10 [ 146.537578][ T5380] ? _raw_spin_unlock+0x28/0x50 [ 146.542514][ T5380] ? new_inode+0x1b7/0x1d0 ./strace-static-x86_64: Process 5394 attached [pid 5392] <... write resumed>) = 1048576 [pid 5251] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- [pid 5394] set_robust_list(0x555571b2b6a0, 24 [pid 5392] munmap(0x7f420a800000, 138412032 [pid 5251] restart_syscall(<... resuming interrupted clone ...> [pid 5394] <... set_robust_list resumed>) = 0 [pid 5392] <... munmap resumed>) = 0 [pid 5251] <... restart_syscall resumed>) = 0 [pid 5394] chdir("./7" [pid 5392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5394] <... chdir resumed>) = 0 [pid 5392] ioctl(4, LOOP_SET_FD, 3 [pid 5251] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5251] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... openat resumed>) = 3 [pid 5394] <... prctl resumed>) = 0 [pid 5251] newfstatat(3, "", [pid 5394] setpgid(0, 0) = 0 [pid 5251] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5251] getdents64(3, 0x555571b2c730 /* 4 entries */, 32768) = 104 [pid 5394] <... openat resumed>) = 3 [pid 5394] write(3, "1000", 4) = 4 [pid 5394] close(3) = 0 [ 146.547041][ T5380] nilfs_new_inode+0x254/0x830 [ 146.551874][ T5380] ? __pfx_nilfs_new_inode+0x10/0x10 [ 146.557386][ T5380] ? rcu_read_lock_any_held+0xb7/0x160 [ 146.562924][ T5380] ? rcu_is_watching+0x15/0xb0 [ 146.567872][ T5380] ? trace_nilfs2_transaction_transition+0x9e/0x230 [ 146.574545][ T5380] ? nilfs_transaction_begin+0x4fd/0x6e0 [ 146.574873][ T5392] loop0: detected capacity change from 0 to 2048 [ 146.580266][ T5380] ? inc_nlink+0x4e/0x150 [ 146.580310][ T5380] nilfs_mkdir+0x10d/0x340 executing program [pid 5394] symlink("/dev/binderfs", "./binderfs" [pid 5251] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5394] <... symlink resumed>) = 0 [pid 5251] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5251] unlink("./7/binderfs" [pid 5394] write(1, "executing program\n", 18 [pid 5251] <... unlink resumed>) = 0 [pid 5394] <... write resumed>) = 18 [pid 5251] umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5394] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5394] rt_sigaction(SIGRT_1, {sa_handler=0x7f4212cb7fa0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4212ca9150}, NULL, 8) = 0 [pid 5394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c28000 [pid 5394] mprotect(0x7f4212c29000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c48990, parent_tid=0x7f4212c48990, exit_signal=0, stack=0x7f4212c28000, stack_size=0x20300, tls=0x7f4212c486c0}./strace-static-x86_64: Process 5395 attached => {parent_tid=[5395]}, 88) = 5395 [pid 5395] rseq(0x7f4212c48fe0, 0x20, 0, 0x53053053 [pid 5394] rt_sigprocmask(SIG_SETMASK, [], [pid 5395] <... rseq resumed>) = 0 [pid 5394] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5395] set_robust_list(0x7f4212c489a0, 24 [pid 5394] futex(0x7f4212d1a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5395] <... set_robust_list resumed>) = 0 [pid 5394] futex(0x7f4212d1a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 146.580352][ T5380] ? __pfx_nilfs_mkdir+0x10/0x10 [ 146.601779][ T5380] ? bpf_lsm_inode_mkdir+0x9/0x10 [ 146.606970][ T5380] ? security_inode_mkdir+0xbe/0x340 [ 146.612333][ T5380] vfs_mkdir+0x2f9/0x4f0 [ 146.616716][ T5380] do_mkdirat+0x264/0x3a0 [ 146.621141][ T5380] ? __pfx_do_mkdirat+0x10/0x10 [ 146.622489][ T5393] NILFS (loop2): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 146.626092][ T5380] ? getname_flags+0x1e3/0x540 [ 146.626134][ T5380] __x64_sys_mkdirat+0x87/0xa0 [ 146.626169][ T5380] do_syscall_64+0xf3/0x230 [ 146.639080][ T5393] NILFS error (device loop2): nilfs_bmap_propagate: broken bmap (inode number=2) [ 146.642345][ T5380] ? clear_bhb_loop+0x35/0x90 [ 146.642381][ T5380] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 146.648368][ T5393] Remounting filesystem read-only [ 146.651750][ T5380] RIP: 0033:0x7f4212c91b89 [ 146.651803][ T5380] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [pid 5395] sync( [pid 5394] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5394] futex(0x7f4212d1a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4212c07000 [pid 5394] mprotect(0x7f4212c08000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4212c27990, parent_tid=0x7f4212c27990, exit_signal=0, stack=0x7f4212c07000, stack_size=0x20300, tls=0x7f4212c276c0} => {parent_tid=[5396]}, 88) = 5396 [pid 5394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5394] futex(0x7f4212d1a6b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5394] futex(0x7f4212d1a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5392] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5396 attached [pid 5395] <... sync resumed>) = 0 [pid 5392] close(3 [pid 5396] rseq(0x7f4212c27fe0, 0x20, 0, 0x53053053 [pid 5395] futex(0x7f4212d1a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5392] <... close resumed>) = 0 [pid 5396] <... rseq resumed>) = 0 [pid 5395] <... futex resumed>) = 0 [pid 5392] close(4 [pid 5396] set_robust_list(0x7f4212c279a0, 24 [pid 5395] futex(0x7f4212d1a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] <... close resumed>) = 0 [pid 5396] <... set_robust_list resumed>) = 0 [pid 5392] mkdir("./bus", 0777 [pid 5396] rt_sigprocmask(SIG_SETMASK, [], [pid 5392] <... mkdir resumed>) = 0 [pid 5396] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 146.651825][ T5380] RSP: 002b:00007f4212c48218 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 146.709495][ T5380] RAX: ffffffffffffffda RBX: 00007f4212d1a6a8 RCX: 00007f4212c91b89 [ 146.717566][ T5380] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 00000000ffffff9c [ 146.725586][ T5380] RBP: 00007f4212d1a6a0 R08: 0000000000000000 R09: 0000000000000000 [ 146.733685][ T5380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4212ce6b98 [ 146.741941][ T5380] R13: 00007f4212ce60c0 R14: 0000000020000a40 R15: 0031656c69662f2e [pid 5396] memfd_create("syzkaller", 0 [pid 5392] mount("/dev/loop0", "./bus", "nilfs2", 0, "" [pid 5396] <... memfd_create resumed>) = 3 [pid 5396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f420a800000 [ 146.750039][ T5380] [ 146.753127][ T5380] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 146.760462][ T5380] CPU: 0 UID: 0 PID: 5380 Comm: syz-executor321 Not tainted 6.12.0-rc3-syzkaller-00013-geca631b8fe80 #0 [ 146.771626][ T5380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 146.781825][ T5380] Call Trace: [ 146.785153][ T5380] [ 146.788131][ T5380] dump_stack_lvl+0x241/0x360 [ 146.792908][ T5380] ? __pfx_dump_stack_lvl+0x10/0x10 [ 146.798170][ T5380] ? __pfx__printk+0x10/0x10 [ 146.802827][ T5380] ? _printk+0xd5/0x120 [ 146.807055][ T5380] ? __init_begin+0x41000/0x41000 [ 146.812151][ T5380] ? vscnprintf+0x5d/0x90 [ 146.816542][ T5380] panic+0x349/0x880 [ 146.820487][ T5380] ? __warn+0x177/0x4e0 [ 146.824675][ T5380] ? __pfx_panic+0x10/0x10 [ 146.829109][ T5380] ? show_trace_log_lvl+0x3b2/0x410 [ 146.834343][ T5380] __warn+0x34b/0x4e0 [ 146.838350][ T5380] ? mark_buffer_dirty+0x2e5/0x520 [ 146.843510][ T5380] report_bug+0x2b3/0x500 [ 146.847873][ T5380] ? mark_buffer_dirty+0x2e5/0x520 [ 146.853016][ T5380] handle_bug+0x60/0x90 [ 146.857197][ T5380] exc_invalid_op+0x1a/0x50 [ 146.861728][ T5380] asm_exc_invalid_op+0x1a/0x20 [ 146.866620][ T5380] RIP: 0010:mark_buffer_dirty+0x2e5/0x520 [ 146.872379][ T5380] Code: 89 df e8 9e 89 db ff 48 8b 3b be 20 00 00 00 5b 41 5e 41 5f 5d e9 fb e8 fb ff e8 76 fc 74 ff e9 73 ff ff ff e8 6c fc 74 ff 90 <0f> 0b 90 e9 61 fd ff ff e8 5e fc 74 ff 90 0f 0b 90 e9 88 fd ff ff [ 146.892018][ T5380] RSP: 0018:ffffc900042879f8 EFLAGS: 00010293 [ 146.898116][ T5380] RAX: ffffffff821fea94 RBX: ffff8880685d5a01 RCX: ffff8880270bbc00 [ 146.906112][ T5380] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 146.914106][ T5380] RBP: 0000000000000000 R08: ffffffff821fe7f1 R09: 1ffff1100ebd34e8 [ 146.922104][ T5380] R10: dffffc0000000000 R11: ffffed100ebd34e9 R12: dffffc0000000000 [ 146.930096][ T5380] R13: ffffc90004287ac0 R14: ffff888075e9a740 R15: ffffc90004287ac0 [ 146.938095][ T5380] ? mark_buffer_dirty+0x41/0x520 [ 146.943150][ T5380] ? mark_buffer_dirty+0x2e4/0x520 [ 146.948294][ T5380] ? mark_buffer_dirty+0x2e4/0x520 [ 146.953432][ T5380] nilfs_palloc_commit_alloc_entry+0x4b/0x160 [ 146.959535][ T5380] nilfs_ifile_create_inode+0x1dd/0x3a0 [ 146.965113][ T5380] ? __pfx_nilfs_ifile_create_inode+0x10/0x10 [ 146.971214][ T5380] ? _raw_spin_unlock+0x28/0x50 [ 146.976101][ T5380] ? new_inode+0x1b7/0x1d0 [ 146.980587][ T5380] nilfs_new_inode+0x254/0x830 [ 146.985381][ T5380] ? __pfx_nilfs_new_inode+0x10/0x10 [ 146.990691][ T5380] ? rcu_read_lock_any_held+0xb7/0x160 [ 146.996184][ T5380] ? rcu_is_watching+0x15/0xb0 [ 147.000978][ T5380] ? trace_nilfs2_transaction_transition+0x9e/0x230 [ 147.007607][ T5380] ? nilfs_transaction_begin+0x4fd/0x6e0 [ 147.013274][ T5380] ? inc_nlink+0x4e/0x150 [ 147.017640][ T5380] nilfs_mkdir+0x10d/0x340 [ 147.022092][ T5380] ? __pfx_nilfs_mkdir+0x10/0x10 [ 147.027069][ T5380] ? bpf_lsm_inode_mkdir+0x9/0x10 [ 147.032124][ T5380] ? security_inode_mkdir+0xbe/0x340 [ 147.037433][ T5380] vfs_mkdir+0x2f9/0x4f0 [ 147.041713][ T5380] do_mkdirat+0x264/0x3a0 [ 147.046078][ T5380] ? __pfx_do_mkdirat+0x10/0x10 [ 147.050960][ T5380] ? getname_flags+0x1e3/0x540 [ 147.055757][ T5380] __x64_sys_mkdirat+0x87/0xa0 [ 147.060555][ T5380] do_syscall_64+0xf3/0x230 [ 147.065081][ T5380] ? clear_bhb_loop+0x35/0x90 [ 147.069779][ T5380] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 147.075703][ T5380] RIP: 0033:0x7f4212c91b89 [ 147.080155][ T5380] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 147.099793][ T5380] RSP: 002b:00007f4212c48218 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 147.108238][ T5380] RAX: ffffffffffffffda RBX: 00007f4212d1a6a8 RCX: 00007f4212c91b89 [ 147.116226][ T5380] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 00000000ffffff9c [ 147.124220][ T5380] RBP: 00007f4212d1a6a0 R08: 0000000000000000 R09: 0000000000000000 [ 147.132211][ T5380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4212ce6b98 [ 147.140203][ T5380] R13: 00007f4212ce60c0 R14: 0000000020000a40 R15: 0031656c69662f2e [ 147.148210][ T5380] [ 147.151590][ T5380] Kernel Offset: disabled [ 147.155975][ T5380] Rebooting in 86400 seconds..