./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1096126662 <...> Warning: Permanently added '10.128.10.43' (ED25519) to the list of known hosts. execve("./syz-executor1096126662", ["./syz-executor1096126662"], 0x7ffd18a86b30 /* 10 vars */) = 0 brk(NULL) = 0x5555557b9000 brk(0x5555557b9e00) = 0x5555557b9e00 arch_prctl(ARCH_SET_FS, 0x5555557b9480) = 0 set_tid_address(0x5555557b9750) = 5028 set_robust_list(0x5555557b9760, 24) = 0 rseq(0x5555557b9da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1096126662", 4096) = 28 getrandom("\xea\xa0\x0b\x81\x95\x5d\x04\xa6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555557b9e00 brk(0x5555557dae00) = 0x5555557dae00 brk(0x5555557db000) = 0x5555557db000 mprotect(0x7fbc44b1a000, 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 getpid() = 5028 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "5028", 4) = 4 close(3) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7fbc44a5f160, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fbc44a5f160, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555557b9750) = 5029 ./strace-static-x86_64: Process 5029 attached [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] set_robust_list(0x5555557b9760, 24) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5030 attached [pid 5028] <... clone resumed>, child_tidptr=0x5555557b9750) = 5030 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... openat resumed>) = 3 [pid 5030] set_robust_list(0x5555557b9760, 24 [pid 5029] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5031 attached [pid 5030] <... set_robust_list resumed>) = 0 [pid 5028] <... clone resumed>, child_tidptr=0x5555557b9750) = 5031 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5031] set_robust_list(0x5555557b9760, 24 [pid 5030] <... openat resumed>) = 3 [pid 5031] <... set_robust_list resumed>) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5029] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5032 attached [pid 5032] set_robust_list(0x5555557b9760, 24) = 0 [pid 5028] <... clone resumed>, child_tidptr=0x5555557b9750) = 5032 [pid 5032] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5031] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5030] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5029] close(3 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5032] <... openat resumed>) = 3 [pid 5031] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5029] <... close resumed>) = 0 [pid 5032] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5032] close(3) = 0 [pid 5028] <... clone resumed>, child_tidptr=0x5555557b9750) = 5033 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5032] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5034 attached [pid 5034] set_robust_list(0x5555557b9760, 24) = 0 [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5035 attached [pid 5035] set_robust_list(0x5555557b9760, 24 [pid 5034] <... prctl resumed>) = 0 [pid 5035] <... set_robust_list resumed>) = 0 [pid 5034] setpgid(0, 0 [pid 5028] <... clone resumed>, child_tidptr=0x5555557b9750) = 5035 [pid 5035] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5034] <... setpgid resumed>) = 0 [pid 5032] <... clone resumed>, child_tidptr=0x5555557b9750) = 5034 [pid 5034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5033 attached [pid 5030] <... close resumed>) = 0 [pid 5033] set_robust_list(0x5555557b9760, 24 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] <... openat resumed>) = 3 [pid 5035] <... openat resumed>) = 3 [pid 5034] write(3, "1000", 4) = 4 [pid 5033] <... set_robust_list resumed>) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] close(3 [pid 5035] ioctl(3, LOOP_CLR_FD [pid 5034] <... close resumed>) = 0 [pid 5034] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5034] <... futex resumed>) = 0 [pid 5035] close(3 [pid 5034] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5035] <... close resumed>) = 0 [pid 5034] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5037 attached [pid 5035] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5031] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5036 attached [pid 5037] set_robust_list(0x5555557b9760, 24 [pid 5034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5033] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5030] <... clone resumed>, child_tidptr=0x5555557b9750) = 5036 [pid 5029] <... clone resumed>, child_tidptr=0x5555557b9750) = 5037 [pid 5037] <... set_robust_list resumed>) = 0 [pid 5037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] set_robust_list(0x5555557b9760, 24 [pid 5034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5037] <... prctl resumed>) = 0 [pid 5036] <... set_robust_list resumed>) = 0 [pid 5034] <... mmap resumed>) = 0x7fbc44a34000 [pid 5033] <... openat resumed>) = 3 [pid 5031] close(3 [pid 5037] setpgid(0, 0 [pid 5034] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5037] <... setpgid resumed>) = 0 [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5035] <... clone resumed>, child_tidptr=0x5555557b9750) = 5038 [pid 5034] <... mprotect resumed>) = 0 [pid 5031] <... close resumed>) = 0 ./strace-static-x86_64: Process 5038 attached [pid 5037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] <... prctl resumed>) = 0 [pid 5033] ioctl(3, LOOP_CLR_FD [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5038] set_robust_list(0x5555557b9760, 24 [pid 5037] <... openat resumed>) = 3 [pid 5036] setpgid(0, 0 [pid 5034] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5033] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5033] close(3 [pid 5036] <... setpgid resumed>) = 0 [pid 5034] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5033] <... close resumed>) = 0 [pid 5037] write(3, "1000", 4 [pid 5036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5033] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5037] <... write resumed>) = 4 [pid 5036] <... openat resumed>) = 3 [pid 5037] close(3./strace-static-x86_64: Process 5039 attached ) = 0 [pid 5039] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... clone3 resumed> => {parent_tid=[5039]}, 88) = 5039 ./strace-static-x86_64: Process 5040 attached [pid 5039] <... rseq resumed>) = 0 [pid 5038] <... set_robust_list resumed>) = 0 [pid 5037] <... futex resumed>) = 0 [pid 5036] write(3, "1000", 4 [pid 5034] rt_sigprocmask(SIG_SETMASK, [], [pid 5040] set_robust_list(0x5555557b9760, 24 [pid 5039] set_robust_list(0x7fbc44a549a0, 24 [pid 5038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5037] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5040] <... set_robust_list resumed>) = 0 [pid 5039] <... set_robust_list resumed>) = 0 [pid 5038] <... prctl resumed>) = 0 [pid 5037] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5036] <... write resumed>) = 4 [pid 5034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5033] <... clone resumed>, child_tidptr=0x5555557b9750) = 5040 [pid 5040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5039] rt_sigprocmask(SIG_SETMASK, [], [pid 5037] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5036] close(3 [pid 5034] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] <... prctl resumed>) = 0 [pid 5039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5038] setpgid(0, 0 [pid 5037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] <... close resumed>) = 0 [pid 5034] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5041 attached [pid 5040] setpgid(0, 0 [pid 5039] memfd_create("syzkaller", 0 [pid 5037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... setpgid resumed>) = 0 [pid 5034] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5041] set_robust_list(0x5555557b9760, 24 [pid 5040] <... setpgid resumed>) = 0 [pid 5038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5037] <... mmap resumed>) = 0x7fbc44a34000 [pid 5036] <... futex resumed>) = 0 [pid 5031] <... clone resumed>, child_tidptr=0x5555557b9750) = 5041 [pid 5041] <... set_robust_list resumed>) = 0 [pid 5036] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, NULL, 8) = 0 [pid 5036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5037] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5037] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5038] <... openat resumed>) = 3 [pid 5036] <... mmap resumed>) = 0x7fbc44a34000 [pid 5041] <... prctl resumed>) = 0 [pid 5041] setpgid(0, 0 [pid 5036] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5040] <... openat resumed>) = 3 [pid 5038] write(3, "1000", 4) = 4 [pid 5036] <... mprotect resumed>) = 0 [pid 5040] write(3, "1000", 4) = 4 [pid 5041] <... setpgid resumed>) = 0 [pid 5038] close(3 [pid 5037] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5037] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5041] <... openat resumed>) = 3 [pid 5040] close(3 [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5038] <... close resumed>) = 0 [pid 5041] write(3, "1000", 4 [pid 5037] <... clone3 resumed> => {parent_tid=[5043]}, 88) = 5043 [pid 5041] <... write resumed>) = 4 [pid 5040] <... close resumed>) = 0 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] rt_sigprocmask(SIG_SETMASK, [], [pid 5036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5041] close(3 [pid 5037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5041] <... close resumed>) = 0 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = 0 [pid 5038] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5044 attached ./strace-static-x86_64: Process 5043 attached [pid 5041] <... futex resumed>) = 0 [pid 5040] <... futex resumed>) = 0 [pid 5038] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5044] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5043] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5041] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5040] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5038] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5036] <... clone3 resumed> => {parent_tid=[5044]}, 88) = 5044 [pid 5044] <... rseq resumed>) = 0 [pid 5043] <... rseq resumed>) = 0 [pid 5041] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5040] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5044] set_robust_list(0x7fbc44a549a0, 24 [pid 5043] set_robust_list(0x7fbc44a549a0, 24 [pid 5041] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5044] <... set_robust_list resumed>) = 0 [pid 5043] <... set_robust_list resumed>) = 0 [pid 5041] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5039] <... memfd_create resumed>) = 3 [pid 5040] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5043] rt_sigprocmask(SIG_SETMASK, [], [pid 5041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5043] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5041] <... mmap resumed>) = 0x7fbc44a34000 [pid 5039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5038] <... mmap resumed>) = 0x7fbc44a34000 [pid 5036] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] rt_sigprocmask(SIG_SETMASK, [], [pid 5043] memfd_create("syzkaller", 0 [pid 5041] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5039] <... mmap resumed>) = 0x7fbc3c634000 [pid 5038] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5043] <... memfd_create resumed>) = 3 [pid 5041] <... mprotect resumed>) = 0 [pid 5040] <... mmap resumed>) = 0x7fbc44a34000 [pid 5038] <... mprotect resumed>) = 0 [pid 5036] <... futex resumed>) = 0 [pid 5044] memfd_create("syzkaller", 0 [pid 5043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5041] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5040] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5044] <... memfd_create resumed>) = 3 [pid 5043] <... mmap resumed>) = 0x7fbc3c634000 [pid 5041] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5040] <... mprotect resumed>) = 0 [pid 5038] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5040] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5038] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5044] <... mmap resumed>) = 0x7fbc3c634000 [pid 5040] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5041] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0}./strace-static-x86_64: Process 5045 attached [pid 5040] <... clone3 resumed> => {parent_tid=[5046]}, 88) = 5046 ./strace-static-x86_64: Process 5046 attached [pid 5040] rt_sigprocmask(SIG_SETMASK, [], [pid 5041] <... clone3 resumed> => {parent_tid=[5045]}, 88) = 5045 [pid 5041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5046] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5041] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 60.253869][ T5039] syz-executor109[5039]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5045] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5046] <... rseq resumed>) = 0 [pid 5045] <... rseq resumed>) = 0 [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] set_robust_list(0x7fbc44a549a0, 24 [pid 5046] set_robust_list(0x7fbc44a549a0, 24 [pid 5045] <... set_robust_list resumed>) = 0 [pid 5038] <... clone3 resumed> => {parent_tid=[5047]}, 88) = 5047 [pid 5040] <... futex resumed>) = 0 [pid 5045] rt_sigprocmask(SIG_SETMASK, [], [pid 5038] rt_sigprocmask(SIG_SETMASK, [], [pid 5046] <... set_robust_list resumed>) = 0 [pid 5045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5047 attached [pid 5041] <... futex resumed>) = 0 [pid 5047] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5046] rt_sigprocmask(SIG_SETMASK, [], [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5047] <... rseq resumed>) = 0 [pid 5047] set_robust_list(0x7fbc44a549a0, 24 [pid 5046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5045] memfd_create("syzkaller", 0 [pid 5038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5047] <... set_robust_list resumed>) = 0 [pid 5047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5046] memfd_create("syzkaller", 0 [pid 5045] <... memfd_create resumed>) = 3 [pid 5044] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5043] <... write resumed>) = 1048576 [pid 5039] <... write resumed>) = 1048576 [pid 5038] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] memfd_create("syzkaller", 0 [pid 5043] munmap(0x7fbc3c634000, 1048576 [pid 5047] <... memfd_create resumed>) = 3 [pid 5046] <... memfd_create resumed>) = 3 [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5044] <... write resumed>) = 1048576 [pid 5043] <... munmap resumed>) = 0 [pid 5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5043] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5047] <... mmap resumed>) = 0x7fbc3c634000 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5045] <... mmap resumed>) = 0x7fbc3c634000 [pid 5043] <... openat resumed>) = 4 [pid 5038] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5043] ioctl(4, LOOP_SET_FD, 3 [pid 5046] <... mmap resumed>) = 0x7fbc3c634000 [pid 5045] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5043] <... ioctl resumed>) = 0 [pid 5039] munmap(0x7fbc3c634000, 1048576 [pid 5047] <... write resumed>) = 1048576 [pid 5044] munmap(0x7fbc3c634000, 1048576 [pid 5039] <... munmap resumed>) = 0 [pid 5043] close(3 [pid 5047] munmap(0x7fbc3c634000, 1048576 [pid 5044] <... munmap resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5044] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5043] mkdir("./file2", 0777 [pid 5039] <... openat resumed>) = 4 [pid 5047] <... munmap resumed>) = 0 [pid 5044] <... openat resumed>) = 4 [pid 5043] <... mkdir resumed>) = 0 [pid 5039] ioctl(4, LOOP_SET_FD, 3 [ 60.375055][ T5043] loop0: detected capacity change from 0 to 2048 [pid 5044] ioctl(4, LOOP_SET_FD, 3 [pid 5046] <... write resumed>) = 1048576 [pid 5045] <... write resumed>) = 1048576 [pid 5045] munmap(0x7fbc3c634000, 1048576) = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5045] ioctl(4, LOOP_SET_FD, 3 [pid 5047] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5043] mount("/dev/loop0", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5047] <... openat resumed>) = 4 [pid 5047] ioctl(4, LOOP_SET_FD, 3 [pid 5046] munmap(0x7fbc3c634000, 1048576) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5046] ioctl(4, LOOP_SET_FD, 3 [pid 5044] <... ioctl resumed>) = 0 [pid 5039] <... ioctl resumed>) = 0 [pid 5039] close(3 [pid 5044] close(3 [pid 5039] <... close resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5039] mkdir("./file2", 0777 [pid 5044] mkdir("./file2", 0777 [pid 5039] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5044] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5039] mount("/dev/loop3", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5045] <... ioctl resumed>) = 0 [pid 5044] mount("/dev/loop1", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5045] close(3) = 0 [pid 5045] mkdir("./file2", 0777) = -1 EEXIST (File exists) [pid 5046] <... ioctl resumed>) = 0 [pid 5045] mount("/dev/loop2", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5046] close(3) = 0 [pid 5046] mkdir("./file2", 0777 [pid 5047] <... ioctl resumed>) = 0 [pid 5046] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5047] close(3) = 0 [ 60.416835][ T5039] loop3: detected capacity change from 0 to 2048 [ 60.424935][ T5044] loop1: detected capacity change from 0 to 2048 [ 60.432680][ T5045] loop2: detected capacity change from 0 to 2048 [ 60.445302][ T5047] loop5: detected capacity change from 0 to 2048 [ 60.450849][ T5046] loop4: detected capacity change from 0 to 2048 [pid 5047] mkdir("./file2", 0777 [pid 5046] mount("/dev/loop4", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5047] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5047] mount("/dev/loop5", "./file2", "nilfs2", MS_I_VERSION, "" [pid 5039] <... mount resumed>) = 0 [pid 5039] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5039] chdir("./file2") = 0 [pid 5039] ioctl(4, LOOP_CLR_FD) = 0 [pid 5039] close(4) = 0 [pid 5039] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5039] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5034] <... futex resumed>) = 0 [pid 5034] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] <... futex resumed>) = 0 [pid 5034] <... futex resumed>) = 1 [pid 5039] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [ 60.495462][ T5051] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 60.511426][ T5052] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5034] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] <... mount resumed>) = 0 [pid 5044] <... mount resumed>) = 0 [pid 5039] <... open resumed>) = 4 [pid 5043] <... mount resumed>) = 0 [pid 5043] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5043] chdir("./file2") = 0 [pid 5043] ioctl(4, LOOP_CLR_FD) = 0 [pid 5043] close(4) = 0 [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = 0 [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5043] <... futex resumed>) = 1 [pid 5043] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5034] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5034] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5045] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5044] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5039] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... mmap resumed>) = 0x7fbc3c713000 [pid 5034] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE [pid 5039] <... futex resumed>) = 0 [pid 5044] <... openat resumed>) = 3 [pid 5039] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5045] <... openat resumed>) = 3 [pid 5044] chdir("./file2" [pid 5034] <... mprotect resumed>) = 0 [pid 5043] <... open resumed>) = 4 [pid 5034] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5044] <... chdir resumed>) = 0 [ 60.541816][ T5053] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 60.552189][ T5054] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 60.564686][ T28] audit: type=1800 audit(1695994714.507:2): pid=5039 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="file2" dev="loop3" ino=16 res=0 errno=0 [pid 5044] ioctl(4, LOOP_CLR_FD [pid 5034] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} => {parent_tid=[5057]}, 88) = 5057 [pid 5034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5034] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5034] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5044] <... ioctl resumed>) = 0 [pid 5044] close(4./strace-static-x86_64: Process 5057 attached [pid 5047] <... mount resumed>) = 0 [pid 5046] <... mount resumed>) = 0 [pid 5045] chdir("./file2" [pid 5044] <... close resumed>) = 0 [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] <... futex resumed>) = 1 [pid 5037] <... futex resumed>) = 0 [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5047] chdir("./file2") = 0 [pid 5044] <... futex resumed>) = 1 [pid 5057] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [pid 5043] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5047] ioctl(4, LOOP_CLR_FD) = 0 [pid 5057] <... rseq resumed>) = 0 [pid 5047] close(4 [pid 5044] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] set_robust_list(0x7fbc3c7339a0, 24 [pid 5047] <... close resumed>) = 0 [pid 5045] <... chdir resumed>) = 0 [pid 5047] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5043] <... open resumed>) = 5 [pid 5057] <... set_robust_list resumed>) = 0 [pid 5045] ioctl(4, LOOP_CLR_FD [pid 5038] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] rt_sigprocmask(SIG_SETMASK, [], [pid 5045] <... ioctl resumed>) = 0 [pid 5038] <... futex resumed>) = 1 [ 60.588526][ T5055] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 60.599215][ T5056] NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5045] close(4 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... futex resumed>) = 0 [pid 5057] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5045] <... close resumed>) = 0 [pid 5036] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 0 [pid 5036] <... futex resumed>) = 1 [pid 5044] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... open resumed>) = 5 [pid 5047] <... futex resumed>) = 0 [pid 5046] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5045] <... futex resumed>) = 1 [pid 5044] <... open resumed>) = 4 [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... futex resumed>) = 0 [pid 5034] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5045] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5041] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... open resumed>) = 4 [pid 5041] <... futex resumed>) = 0 [pid 5045] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5046] <... openat resumed>) = 3 [pid 5045] <... futex resumed>) = 0 [pid 5041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5057] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... open resumed>) = 4 [pid 5044] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] <... futex resumed>) = 1 [pid 5057] <... futex resumed>) = 0 [pid 5047] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 1 [pid 5043] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5041] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... futex resumed>) = 0 [pid 5057] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5047] <... futex resumed>) = 1 [pid 5044] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5041] <... futex resumed>) = 0 [pid 5038] <... futex resumed>) = 0 [pid 5036] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5044] <... open resumed>) = 5 [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5038] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... open resumed>) = 5 [pid 5044] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = 0 [pid 5036] <... futex resumed>) = 0 [pid 5047] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] chdir("./file2" [pid 5045] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5044] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... futex resumed>) = 0 [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... futex resumed>) = 0 [pid 5045] <... open resumed>) = 5 [pid 5044] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5047] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [ 60.637863][ T28] audit: type=1800 audit(1695994714.537:3): pid=5043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="file2" dev="loop0" ino=16 res=0 errno=0 [ 60.658333][ T28] audit: type=1800 audit(1695994714.577:4): pid=5043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="bus" dev="loop0" ino=18 res=0 errno=0 [pid 5045] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5045] <... futex resumed>) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5047] ftruncate(5, 33587199 [pid 5045] ftruncate(5, 33587199 [pid 5041] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = 0 [pid 5047] <... ftruncate resumed>) = 0 [pid 5045] <... ftruncate resumed>) = 0 [pid 5041] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... futex resumed>) = 1 [pid 5047] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 0 [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] <... futex resumed>) = 1 [pid 5044] ftruncate(5, 33587199 [pid 5038] <... futex resumed>) = 0 [pid 5047] sendfile(4, 5, NULL, 281474978811908 [pid 5045] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... ftruncate resumed>) = 0 [pid 5038] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... futex resumed>) = 1 [pid 5044] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... futex resumed>) = 0 [pid 5039] <... futex resumed>) = 0 [pid 5038] <... futex resumed>) = 0 [pid 5034] <... futex resumed>) = 1 [pid 5046] <... chdir resumed>) = 0 [pid 5044] <... futex resumed>) = 1 [pid 5041] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] ftruncate(5, 33587199 [pid 5038] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... futex resumed>) = 0 [pid 5041] <... futex resumed>) = 0 [ 60.679395][ T28] audit: type=1800 audit(1695994714.587:5): pid=5044 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="file2" dev="loop0" ino=16 res=0 errno=0 [ 60.700411][ T28] audit: type=1800 audit(1695994714.587:6): pid=5057 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="bus" dev="loop3" ino=18 res=0 errno=0 [ 60.704059][ T5047] NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16) [pid 5039] <... ftruncate resumed>) = 0 [pid 5036] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] ioctl(4, LOOP_CLR_FD [pid 5045] sendfile(4, 5, NULL, 281474978811908 [pid 5044] sendfile(4, 5, NULL, 281474978811908 [pid 5041] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... futex resumed>) = 1 [pid 5034] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5043] <... futex resumed>) = 0 [pid 5046] <... ioctl resumed>) = 0 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] <... futex resumed>) = 0 [pid 5043] ftruncate(5, 33587199) = 0 [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5036] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5038] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5043] <... futex resumed>) = 0 [pid 5038] <... mmap resumed>) = 0x7fbc3c713000 [pid 5043] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} => {parent_tid=[5058]}, 88) = 5058 [pid 5038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5038] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 60.721748][ T28] audit: type=1800 audit(1695994714.617:7): pid=5045 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="file2" dev="loop5" ino=16 res=0 errno=0 [ 60.734513][ T5044] NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16) [ 60.750823][ T28] audit: type=1800 audit(1695994714.627:8): pid=5047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="file2" dev="loop5" ino=16 res=0 errno=0 [pid 5038] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5058 attached [pid 5046] close(4 [pid 5037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5034] <... futex resumed>) = 1 [pid 5039] <... futex resumed>) = 0 [pid 5039] sendfile(4, 5, NULL, 281474978811908 [pid 5058] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [pid 5046] <... close resumed>) = 0 [pid 5041] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 60.782925][ T5039] NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16) [ 60.783489][ T5047] Remounting filesystem read-only [ 60.798303][ T28] audit: type=1800 audit(1695994714.627:9): pid=5044 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="bus" dev="loop0" ino=18 res=0 errno=0 [ 60.798929][ T5045] NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16) [pid 5041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5058] <... rseq resumed>) = 0 [pid 5047] <... sendfile resumed>) = -1 EIO (Input/output error) [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] <... futex resumed>) = 0 [pid 5041] <... mmap resumed>) = 0x7fbc3c713000 [pid 5038] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5037] <... futex resumed>) = 1 [pid 5036] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5043] sendfile(4, 5, NULL, 281474978811908 [pid 5041] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE [pid 5038] futex(0x7fbc44b2062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... mprotect resumed>) = 0 [pid 5038] <... futex resumed>) = 0 [pid 5036] <... futex resumed>) = 0 [pid 5041] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5041] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5038] <... mmap resumed>) = 0x7fbc3c6f2000 [pid 5036] <... mmap resumed>) = 0x7fbc3c713000 [pid 5041] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} [pid 5038] mprotect(0x7fbc3c6f3000, 131072, PROT_READ|PROT_WRITE [pid 5036] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE [pid 5038] <... mprotect resumed>) = 0 [pid 5036] <... mprotect resumed>) = 0 [pid 5041] <... clone3 resumed> => {parent_tid=[5059]}, 88) = 5059 [pid 5038] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5041] rt_sigprocmask(SIG_SETMASK, [], [pid 5038] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5036] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5041] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c712990, parent_tid=0x7fbc3c712990, exit_signal=0, stack=0x7fbc3c6f2000, stack_size=0x20240, tls=0x7fbc3c7126c0} [pid 5036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} [pid 5041] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... clone3 resumed> => {parent_tid=[5061]}, 88) = 5061 [pid 5036] <... clone3 resumed> => {parent_tid=[5060]}, 88) = 5060 [pid 5041] <... futex resumed>) = 0 [pid 5038] rt_sigprocmask(SIG_SETMASK, [], [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5046] <... futex resumed>) = 1 [pid 5041] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5038] futex(0x7fbc44b20628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = 0 [pid 5036] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b2062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5061 attached ./strace-static-x86_64: Process 5059 attached [pid 5061] rseq(0x7fbc3c712fe0, 0x20, 0, 0x53053053 [pid 5059] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [pid 5061] <... rseq resumed>) = 0 [pid 5059] <... rseq resumed>) = 0 [pid 5061] set_robust_list(0x7fbc3c7129a0, 24 [pid 5059] set_robust_list(0x7fbc3c7339a0, 24 [pid 5061] <... set_robust_list resumed>) = 0 [pid 5059] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5060 attached [pid 5061] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] set_robust_list(0x7fbc3c7339a0, 24 [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5034] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5061] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5059] rt_sigprocmask(SIG_SETMASK, [], [pid 5061] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5060] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [pid 5058] <... set_robust_list resumed>) = 0 [pid 5034] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5059] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5061] futex(0x7fbc44b2062c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5059] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5038] <... futex resumed>) = 0 [pid 5034] <... futex resumed>) = 1 [pid 5058] rt_sigprocmask(SIG_SETMASK, [], [pid 5061] futex(0x7fbc44b20628, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... rseq resumed>) = 0 [pid 5059] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5057] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b20628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] <... futex resumed>) = 0 [pid 5059] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = 1 [pid 5061] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5059] <... futex resumed>) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5038] futex(0x7fbc44b2062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5059] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5041] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5061] futex(0x7fbc44b2062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5061] <... futex resumed>) = 0 [pid 5059] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5041] <... futex resumed>) = 0 [pid 5061] futex(0x7fbc44b20628, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5059] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... futex resumed>) = 0 [pid 5041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5059] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5041] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5041] <... futex resumed>) = 0 [pid 5059] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5041] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5059] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5059] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5039] <... sendfile resumed>) = -1 EIO (Input/output error) [pid 5060] set_robust_list(0x7fbc3c7339a0, 24 [pid 5057] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5034] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5060] <... set_robust_list resumed>) = 0 [pid 5058] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5060] rt_sigprocmask(SIG_SETMASK, [], [pid 5058] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5060] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5060] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5058] <... futex resumed>) = 0 [pid 5057] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] <... open resumed>) = 6 [pid 5060] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5058] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5057] <... futex resumed>) = 1 [pid 5034] <... futex resumed>) = 0 [pid 5057] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... futex resumed>) = 1 [pid 5057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] <... futex resumed>) = 0 [pid 5034] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5060] write(6, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5057] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5047] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] <... futex resumed>) = 0 [pid 5036] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... futex resumed>) = 0 [pid 5038] exit_group(0 [pid 5036] <... futex resumed>) = 0 [pid 5061] <... futex resumed>) = ? [pid 5058] <... futex resumed>) = ? [pid 5057] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5047] <... futex resumed>) = ? [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... exit_group resumed>) = ? [pid 5036] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5034] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] +++ exited with 0 +++ [pid 5058] +++ exited with 0 +++ [pid 5057] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] +++ exited with 0 +++ [pid 5046] <... futex resumed>) = 0 [pid 5040] <... futex resumed>) = 1 [pid 5038] +++ exited with 0 +++ [pid 5057] <... futex resumed>) = 0 [pid 5046] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5038, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5057] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5046] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5034] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... sendfile resumed>) = -1 EIO (Input/output error) [pid 5045] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5045] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5041] exit_group(0 [pid 5059] <... futex resumed>) = ? [pid 5045] <... futex resumed>) = ? [pid 5041] <... exit_group resumed>) = ? [pid 5059] +++ exited with 0 +++ [pid 5045] +++ exited with 0 +++ [pid 5041] +++ exited with 0 +++ [pid 5034] <... futex resumed>) = 0 [ 60.818618][ T28] audit: type=1800 audit(1695994714.627:10): pid=5047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="bus" dev="loop5" ino=18 res=0 errno=0 [ 60.856270][ T5039] Remounting filesystem read-only [pid 5057] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5034] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... futex resumed>) = 0 [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5041, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5057] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... futex resumed>) = 0 [pid 5037] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5031] restart_syscall(<... resuming interrupted clone ...> [pid 5046] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] <... restart_syscall resumed>) = 0 [pid 5046] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5037] <... futex resumed>) = 0 [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5035] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5046] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5039] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... mmap resumed>) = 0x7fbc3c713000 [pid 5035] <... openat resumed>) = 3 [pid 5031] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE [pid 5039] <... futex resumed>) = 0 [pid 5035] ioctl(3, LOOP_CLR_FD [pid 5031] <... openat resumed>) = 3 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... futex resumed>) = 0 [pid 5037] <... mprotect resumed>) = 0 [pid 5035] <... ioctl resumed>) = 0 [pid 5034] exit_group(0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5057] <... futex resumed>) = ? [pid 5046] ftruncate(-1, 33587199 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5035] close(3 [pid 5034] <... exit_group resumed>) = ? [pid 5031] <... ioctl resumed>) = 0 [pid 5057] +++ exited with 0 +++ [pid 5046] <... ftruncate resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5035] <... close resumed>) = 0 [pid 5031] close(3 [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} [pid 5035] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] <... close resumed>) = 0 ./strace-static-x86_64: Process 5063 attached ./strace-static-x86_64: Process 5062 attached [pid 5046] <... futex resumed>) = 1 [pid 5043] <... sendfile resumed>) = -1 EIO (Input/output error) [pid 5040] <... futex resumed>) = 0 [pid 5036] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5063] set_robust_list(0x5555557b9760, 24 [pid 5062] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [ 60.894702][ T5044] Remounting filesystem read-only [ 60.900225][ T5043] NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16) [ 60.911345][ T5060] NILFS (loop0): discard dirty page: offset=0, ino=19 [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] +++ exited with 0 +++ [pid 5037] <... clone3 resumed> => {parent_tid=[5062]}, 88) = 5062 [pid 5036] futex(0x7fbc44b2062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] <... clone resumed>, child_tidptr=0x5555557b9750) = 5063 [pid 5034] +++ exited with 0 +++ [pid 5063] <... set_robust_list resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... futex resumed>) = 0 [pid 5037] rt_sigprocmask(SIG_SETMASK, [], [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5046] sendfile(-1, -1, NULL, 281474978811908 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5032] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5034, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5031] <... clone resumed>, child_tidptr=0x5555557b9750) = 5064 [pid 5063] <... prctl resumed>) = 0 [pid 5046] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5063] setpgid(0, 0 [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = 0 [pid 5032] <... openat resumed>) = 3 [pid 5063] <... setpgid resumed>) = 0 [pid 5062] <... rseq resumed>) = 0 [pid 5046] <... futex resumed>) = 1 [pid 5044] <... sendfile resumed>) = -1 EIO (Input/output error) [pid 5043] <... futex resumed>) = 0 [pid 5040] <... futex resumed>) = 0 [pid 5037] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... futex resumed>) = 0 [pid 5032] ioctl(3, LOOP_CLR_FD [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5062] set_robust_list(0x7fbc3c7339a0, 24 [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5032] <... ioctl resumed>) = 0 [pid 5063] <... openat resumed>) = 3 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... futex resumed>) = 0 [pid 5040] <... futex resumed>) = 0 [pid 5036] <... mmap resumed>) = 0x7fbc3c6f2000 [pid 5032] close(3 [pid 5063] write(3, "1000", 4 [pid 5062] rt_sigprocmask(SIG_SETMASK, [], [pid 5046] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5044] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] mprotect(0x7fbc3c6f3000, 131072, PROT_READ|PROT_WRITE [pid 5032] <... close resumed>) = 0 [pid 5063] <... write resumed>) = 4 [pid 5046] <... open resumed>) = -1 EROFS (Read-only file system) [pid 5036] <... mprotect resumed>) = 0 [pid 5032] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5065 attached [pid 5063] close(3 [pid 5062] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5064 attached [pid 5065] set_robust_list(0x5555557b9760, 24 [pid 5063] <... close resumed>) = 0 [pid 5062] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5046] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5036] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5032] <... clone resumed>, child_tidptr=0x5555557b9750) = 5065 [pid 5065] <... set_robust_list resumed>) = 0 [pid 5064] set_robust_list(0x5555557b9760, 24 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5062] <... open resumed>) = -1 EEXIST (File exists) [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c712990, parent_tid=0x7fbc3c712990, exit_signal=0, stack=0x7fbc3c6f2000, stack_size=0x20240, tls=0x7fbc3c7126c0}./strace-static-x86_64: Process 5066 attached [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5064] <... set_robust_list resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5062] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... futex resumed>) = 0 [pid 5065] <... prctl resumed>) = 0 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5063] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5062] <... futex resumed>) = 1 [pid 5046] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5066] rseq(0x7fbc3c712fe0, 0x20, 0, 0x53053053 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... futex resumed>) = 0 [pid 5036] <... clone3 resumed> => {parent_tid=[5066]}, 88) = 5066 [pid 5065] setpgid(0, 0 [pid 5063] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5046] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... setpgid resumed>) = 0 [pid 5063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = 1 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5046] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] <... openat resumed>) = 3 [pid 5063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] write(3, "1000", 4 [pid 5063] <... mmap resumed>) = 0x7fbc44a34000 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] <... futex resumed>) = 0 [pid 5065] <... write resumed>) = 4 [pid 5063] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5046] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5040] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] close(3 [pid 5063] <... mprotect resumed>) = 0 [pid 5046] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5065] <... close resumed>) = 0 [pid 5063] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5046] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5046] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5065] <... futex resumed>) = 0 [pid 5063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5046] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] exit_group(0./strace-static-x86_64: Process 5067 attached [pid 5065] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5046] <... futex resumed>) = ? [pid 5040] <... exit_group resumed>) = ? [pid 5067] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5065] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5063] <... clone3 resumed> => {parent_tid=[5067]}, 88) = 5067 [pid 5046] +++ exited with 0 +++ [pid 5040] +++ exited with 0 +++ [pid 5067] <... rseq resumed>) = 0 [pid 5065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5063] rt_sigprocmask(SIG_SETMASK, [], [pid 5067] set_robust_list(0x7fbc44a549a0, 24 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5067] <... set_robust_list resumed>) = 0 [pid 5065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] rt_sigprocmask(SIG_SETMASK, [], [pid 5065] <... mmap resumed>) = 0x7fbc44a34000 [pid 5063] <... futex resumed>) = 0 [pid 5043] <... futex resumed>) = 0 [pid 5033] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5040, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5066] <... rseq resumed>) = 0 [pid 5065] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5064] <... prctl resumed>) = 0 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5062] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [ 60.937411][ T5060] NILFS (loop0): discard dirty block: blocknr=0, size=1024 [ 60.964447][ T28] audit: type=1800 audit(1695994714.627:11): pid=5045 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor109" name="bus" dev="loop5" ino=18 res=0 errno=0 [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5067] memfd_create("syzkaller", 0 [pid 5065] <... mprotect resumed>) = 0 [pid 5067] <... memfd_create resumed>) = 3 [pid 5065] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5065] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5067] <... mmap resumed>) = 0x7fbc3c634000 [pid 5065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0}./strace-static-x86_64: Process 5068 attached => {parent_tid=[5068]}, 88) = 5068 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5066] set_robust_list(0x7fbc3c7129a0, 24 [pid 5065] rt_sigprocmask(SIG_SETMASK, [], [pid 5064] setpgid(0, 0 [pid 5043] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5036] futex(0x7fbc44b20628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... rseq resumed>) = 0 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] set_robust_list(0x7fbc44a549a0, 24 [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... setpgid resumed>) = 0 [pid 5043] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... futex resumed>) = 0 [pid 5068] <... set_robust_list resumed>) = 0 [pid 5066] rt_sigprocmask(SIG_SETMASK, [], [pid 5065] <... futex resumed>) = 0 [pid 5068] rt_sigprocmask(SIG_SETMASK, [], [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5068] memfd_create("syzkaller", 0) = 3 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbc3c634000 [pid 5066] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5066] write(6, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] futex(0x7fbc44b2062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5043] <... futex resumed>) = 1 [pid 5037] <... futex resumed>) = 0 [pid 5037] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... openat resumed>) = 3 [pid 5043] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5064] write(3, "1000", 4 [pid 5043] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] <... futex resumed>) = 0 [pid 5033] <... openat resumed>) = 3 [pid 5067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5064] <... write resumed>) = 4 [pid 5043] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [ 60.985198][ T5060] NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024 [ 60.997392][ T5060] NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024 [ 61.023627][ T5060] NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024 [pid 5037] exit_group(0) = ? [pid 5062] <... futex resumed>) = ? [pid 5043] <... futex resumed>) = ? [pid 5033] ioctl(3, LOOP_CLR_FD [pid 5064] close(3) = 0 [pid 5033] <... ioctl resumed>) = 0 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] close(3 [pid 5043] +++ exited with 0 +++ [pid 5033] <... close resumed>) = 0 [pid 5064] <... futex resumed>) = 0 [pid 5064] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5036] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5033] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555557b9750) = 5069 ./strace-static-x86_64: Process 5069 attached [pid 5064] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5062] +++ exited with 0 +++ [pid 5037] +++ exited with 0 +++ [pid 5064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5037, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5029] restart_syscall(<... resuming interrupted clone ...> [pid 5064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc44a34000 [pid 5029] <... restart_syscall resumed>) = 0 [pid 5064] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5069] set_robust_list(0x5555557b9760, 24) = 0 [pid 5064] <... mprotect resumed>) = 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} => {parent_tid=[5070]}, 88) = 5070 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5067] <... write resumed>) = 1048576 [pid 5064] rt_sigprocmask(SIG_SETMASK, [], [pid 5029] <... ioctl resumed>) = 0 [pid 5069] <... prctl resumed>) = 0 [pid 5064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5060] <... write resumed>) = -1 EROFS (Read-only file system) [pid 5029] close(3 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... close resumed>) = 0 [pid 5064] <... futex resumed>) = 0 [pid 5060] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached [pid 5070] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053) = 0 [pid 5070] set_robust_list(0x7fbc44a549a0, 24) = 0 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5060] <... futex resumed>) = 0 [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] memfd_create("syzkaller", 0 [pid 5067] munmap(0x7fbc3c634000, 1048576 [pid 5060] futex(0x7fbc44b20618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] <... clone resumed>, child_tidptr=0x5555557b9750) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5070] <... memfd_create resumed>) = 3 [pid 5071] set_robust_list(0x5555557b9760, 24 [ 61.034229][ T5066] NILFS (loop0): nilfs_get_block (ino=19): a race condition while inserting a data block at offset=0 [ 61.046185][ T5066] ------------[ cut here ]------------ [ 61.051758][ T5066] kernel BUG at fs/buffer.c:2782! [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5070] <... mmap resumed>) = 0x7fbc3c634000 [pid 5067] <... munmap resumed>) = 0 [pid 5069] setpgid(0, 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... setpgid resumed>) = 0 [pid 5071] <... prctl resumed>) = 0 [pid 5068] <... write resumed>) = 1048576 [pid 5067] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] setpgid(0, 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... setpgid resumed>) = 0 [pid 5067] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5071] write(3, "1000", 4 [pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5068] munmap(0x7fbc3c634000, 1048576 [pid 5067] ioctl(4, LOOP_CLR_FD [pid 5071] <... write resumed>) = 4 [pid 5071] close(3) = 0 [pid 5067] <... ioctl resumed>) = 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... munmap resumed>) = 0 [pid 5071] <... futex resumed>) = 0 [pid 5071] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, NULL, 8) = 0 [pid 5071] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc44a34000 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5071] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5071] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5067] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5067] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5067] close(4./strace-static-x86_64: Process 5072 attached [pid 5068] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... close resumed>) = 0 [pid 5072] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5071] <... clone3 resumed> => {parent_tid=[5072]}, 88) = 5072 [pid 5068] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] close(3 [pid 5072] <... rseq resumed>) = 0 [pid 5071] rt_sigprocmask(SIG_SETMASK, [], [pid 5068] ioctl(4, LOOP_CLR_FD [pid 5072] set_robust_list(0x7fbc44a549a0, 24 [pid 5068] <... ioctl resumed>) = 0 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] <... write resumed>) = 1048576 [pid 5072] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5071] <... futex resumed>) = 0 [pid 5072] memfd_create("syzkaller", 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5072] <... memfd_create resumed>) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbc3c634000 [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5067] <... close resumed>) = 0 [pid 5068] ioctl(4, LOOP_SET_FD, 3 [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... futex resumed>) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5068] close(4 [pid 5067] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... close resumed>) = 0 [pid 5067] <... open resumed>) = -1 EISDIR (Is a directory) [pid 5063] <... futex resumed>) = 0 [pid 5068] close(3 [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... close resumed>) = 0 [pid 5067] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] munmap(0x7fbc3c634000, 1048576 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... munmap resumed>) = 0 [pid 5067] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = 1 [pid 5067] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... open resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5067] ftruncate(3, 33587199 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... ftruncate resumed>) = 0 [pid 5063] <... futex resumed>) = 0 [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... futex resumed>) = 0 [pid 5063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] ioctl(4, LOOP_SET_FD, 3 [pid 5067] sendfile(-1, 3, NULL, 281474978811908 [pid 5070] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5067] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5070] ioctl(4, LOOP_CLR_FD [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... ioctl resumed>) = 0 [pid 5067] <... futex resumed>) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5070] ioctl(4, LOOP_SET_FD, 3 [pid 5067] <... open resumed>) = 4 [ 61.105908][ T5066] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 61.112015][ T5066] CPU: 1 PID: 5066 Comm: syz-executor109 Not tainted 6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0 [ 61.122437][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 61.132586][ T5066] RIP: 0010:submit_bh_wbc+0x515/0x530 [pid 5070] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5070] close(4) = 0 [pid 5070] close(3) = 0 [pid 5072] <... write resumed>) = 1048576 [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5068] <... futex resumed>) = 1 [pid 5067] write(4, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5065] <... futex resumed>) = 0 [pid 5063] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000 [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5068] <... open resumed>) = -1 EISDIR (Is a directory) [pid 5065] <... futex resumed>) = 0 [pid 5063] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... futex resumed>) = 0 [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5068] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... open resumed>) = 3 [pid 5065] <... futex resumed>) = 0 [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... futex resumed>) = 0 [pid 5068] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] ftruncate(3, 33587199 [pid 5065] <... futex resumed>) = 0 [pid 5068] <... ftruncate resumed>) = 0 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5070] <... futex resumed>) = 1 [pid 5068] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] <... futex resumed>) = 0 [pid 5068] sendfile(-1, 3, NULL, 281474978811908 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000) = -1 EEXIST (File exists) [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5068] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] <... futex resumed>) = 0 [pid 5068] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5065] <... futex resumed>) = 0 [pid 5068] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5065] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] munmap(0x7fbc3c634000, 1048576 [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5065] <... futex resumed>) = 0 [pid 5068] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5065] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... munmap resumed>) = 0 [pid 5068] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5068] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... futex resumed>) = 0 [pid 5065] exit_group(0) = ? [pid 5068] <... futex resumed>) = ? [pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5072] ioctl(4, LOOP_CLR_FD) = 0 [pid 5072] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5072] close(4) = 0 [pid 5072] close(3 [pid 5068] +++ exited with 0 +++ [pid 5065] +++ exited with 0 +++ [pid 5032] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5065, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5032] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5032] ioctl(3, LOOP_CLR_FD) = 0 [pid 5032] close(3) = 0 [pid 5032] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555557b9750) = 5073 [pid 5072] <... close resumed>) = 0 [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... futex resumed>) = 1 [pid 5072] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000) = -1 EISDIR (Is a directory) [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... futex resumed>) = 1 [ 61.137989][ T5066] Code: e8 f0 93 84 ff be 00 10 00 00 48 c7 c7 80 d6 45 8d 4c 89 ea e8 2c 3b 6e 02 e9 b1 fe ff ff e8 d2 93 84 ff 0f 0b e8 cb 93 84 ff <0f> 0b e8 c4 93 84 ff 0f 0b e8 bd 93 84 ff 0f 0b e8 b6 93 84 ff 0f [ 61.157608][ T5066] RSP: 0018:ffffc90003ddf858 EFLAGS: 00010293 [ 61.163691][ T5066] RAX: ffffffff820976a5 RBX: 0000000000000000 RCX: ffff888027e48000 [ 61.171670][ T5066] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 61.179654][ T5066] RBP: 0000000000000000 R08: ffffffff82097234 R09: 1ffff1100ff5f8cb [ 61.187639][ T5066] R10: dffffc0000000000 R11: ffffed100ff5f8cc R12: ffff88807fafc658 [ 61.195622][ T5066] R13: 1ffff1100ff5f8cb R14: 0000000000000000 R15: ffff88807fafc658 [pid 5072] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 3 [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... futex resumed>) = 1 [pid 5072] ftruncate(3, 33587199) = 0 [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [ 61.203605][ T5066] FS: 00007fbc3c7126c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 61.212551][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.219147][ T5066] CR2: 00007fbc44aec112 CR3: 000000007366f000 CR4: 00000000003506e0 [ 61.227112][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.235068][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.243026][ T5066] Call Trace: [ 61.246301][ T5066] [ 61.249307][ T5066] ? __die_body+0x8b/0xe0 [ 61.253715][ T5066] ? die+0xa1/0xd0 [ 61.257423][ T5066] ? do_trap+0x153/0x380 [ 61.261671][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.266425][ T5066] ? do_error_trap+0x1dc/0x2c0 [ 61.271179][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.276024][ T5066] ? do_int3+0x50/0x50 [ 61.280259][ T5066] ? handle_invalid_op+0x34/0x40 [ 61.285194][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.289944][ T5066] ? exc_invalid_op+0x33/0x50 [ 61.294607][ T5066] ? asm_exc_invalid_op+0x1a/0x20 [ 61.299621][ T5066] ? submit_bh_wbc+0xa4/0x530 [ 61.304284][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.309036][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.313788][ T5066] ? submit_bh_wbc+0x515/0x530 [ 61.318548][ T5066] __block_write_begin_int+0x12c0/0x1a50 [ 61.324196][ T5066] ? folio_add_lru+0x27b/0x9d0 [ 61.328952][ T5066] ? nilfs_inode_sub_blocks+0xe0/0xe0 [ 61.334314][ T5066] ? folio_zero_new_buffers+0x530/0x530 [ 61.339846][ T5066] ? pagecache_get_page+0x243/0x590 [ 61.345034][ T5066] ? nilfs_inode_sub_blocks+0xe0/0xe0 [ 61.350491][ T5066] block_write_begin+0x9b/0x1e0 [ 61.355327][ T5066] nilfs_write_begin+0xa0/0x110 [ 61.360164][ T5066] generic_perform_write+0x31b/0x630 [ 61.365444][ T5066] ? generic_file_direct_write+0x3f0/0x3f0 [ 61.371236][ T5066] ? generic_file_direct_write+0x3a2/0x3f0 [ 61.377030][ T5066] __generic_file_write_iter+0x1b4/0x230 [ 61.382654][ T5066] generic_file_write_iter+0xaf/0x310 [ 61.388034][ T5066] vfs_write+0x782/0xaf0 [ 61.392292][ T5066] ? file_end_write+0x250/0x250 [ 61.397147][ T5066] ? __fget_files+0x28/0x4a0 [ 61.401735][ T5066] ? __fget_files+0x435/0x4a0 [ 61.406431][ T5066] ? __fdget_pos+0x2b0/0x340 [ 61.411011][ T5066] ? ksys_write+0x7b/0x2c0 [ 61.415425][ T5066] ksys_write+0x1a0/0x2c0 [ 61.419780][ T5066] ? __ia32_sys_read+0x90/0x90 [ 61.424535][ T5066] ? syscall_enter_from_user_mode+0x32/0x230 [ 61.430503][ T5066] ? syscall_enter_from_user_mode+0x8c/0x230 [ 61.436470][ T5066] do_syscall_64+0x41/0xc0 [ 61.440874][ T5066] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.446840][ T5066] RIP: 0033:0x7fbc44a9fb69 [ 61.451244][ T5066] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1b 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 [ 61.470878][ T5066] RSP: 002b:00007fbc3c712168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 61.479324][ T5066] RAX: ffffffffffffffda RBX: 00007fbc44b20628 RCX: 00007fbc44a9fb69 [ 61.487302][ T5066] RDX: 00000000000000a0 RSI: 0000000020000380 RDI: 0000000000000006 [ 61.495267][ T5066] RBP: 00007fbc44b20620 R08: 00007ffd94a68bd7 R09: 0000000000000000 [pid 5072] sendfile(-1, 3, NULL, 281474978811908 [pid 5071] <... futex resumed>) = 0 [pid 5072] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5063] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5063] <... futex resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5071] <... futex resumed>) = 0 [pid 5063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5072] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] <... mmap resumed>) = 0x7fbc3c713000 [pid 5063] mprotect(0x7fbc3c714000, 131072, PROT_READ|PROT_WRITE [pid 5072] <... open resumed>) = -1 EEXIST (File exists) [pid 5063] <... mprotect resumed>) = 0 [pid 5063] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc3c733990, parent_tid=0x7fbc3c733990, exit_signal=0, stack=0x7fbc3c713000, stack_size=0x20240, tls=0x7fbc3c7336c0} => {parent_tid=[5074]}, 88) = 5074 [pid 5063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5063] futex(0x7fbc44b20618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7fbc44b2061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512./strace-static-x86_64: Process 5074 attached ) = -1 EBADF (Bad file descriptor) [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] <... futex resumed>) = 0 [pid 5072] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160) = -1 EBADF (Bad file descriptor) [pid 5072] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] rseq(0x7fbc3c733fe0, 0x20, 0, 0x53053053 [pid 5071] exit_group(0 [pid 5072] <... futex resumed>) = ? [pid 5071] <... exit_group resumed>) = ? [pid 5072] +++ exited with 0 +++ [pid 5071] +++ exited with 0 +++ [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = 0 [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached , child_tidptr=0x5555557b9750) = 5075 [pid 5074] <... rseq resumed>) = 0 [pid 5074] set_robust_list(0x7fbc3c7339a0, 24) = 0 [pid 5074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5074] write(4, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 5070] <... futex resumed>) = 0 [pid 5070] open("./file2", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|FASYNC, 000) = -1 EISDIR (Is a directory) [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5070] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... open resumed>) = 3 [pid 5064] <... futex resumed>) = 0 [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5064] <... futex resumed>) = 1 [pid 5070] ftruncate(3, 33587199 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] <... ftruncate resumed>) = 0 [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] sendfile(-1, 3, NULL, 281474978811908) = -1 EBADF (Bad file descriptor) [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] open("./file0", O_RDWR|O_CREAT|O_EXCL|O_DIRECT, 000) = -1 EEXIST (File exists) [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] write(-1, "\x34\xfd\x98\xaa\x1d\x0e\x7a\xde\xc9\x37\xa5\xf3\x31\xa7\x5f\x48\x79\x34\xf5\x02\x42\xa0\x75\x19\x44\x93\x69\x72\x89\x6c\x29\xa5\x06\x8c\x8e\xcb\xa1\xaa\x0a\x4e\x2a\x63\x1b\x51\x80\xe1\xfb\xde\x79\xf4\x50\x2d\xc4\xc4\xa1\xfb\xa9\xdc\xd9\xed\x83\xe6\x39\xae\xfa\x1b\x87\x63\x1c\x33\xd1\xa8\x2c\xb0\xc0\x03\x56\x76\xdd\xfe\xb0\xfe\x79\x84\xd7\x51\x9b\x0f\x83\x9d\x49\x7f\xc9\xd6\x4e\xf1\x4d\x1d\xe2\x22"..., 512) = -1 EBADF (Bad file descriptor) [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5064] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] <... futex resumed>) = 1 [pid 5070] write(-1, "\x16\x00\x00\x00\x98\x00\x00\xfa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x30\x00\x00\x00\x1b\x00\x7f\xff\x00\x00\x60\x00\x95\xa0\x91\xf4\x74\xa7\xff\x3e\x35\x65\x73\x26\x68\x1e\x04\xee\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x3f\x01\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160) = -1 EBADF (Bad file descriptor) [pid 5070] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = 0 [pid 5064] exit_group(0) = ? [pid 5070] <... futex resumed>) = ? [pid 5067] <... write resumed>) = 512 [pid 5067] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.503241][ T5066] R10: 0000000000000098 R11: 0000000000000246 R12: 00007fbc44b2062c [ 61.511208][ T5066] R13: 000000000000006e R14: 00007ffd94a68af0 R15: 00007ffd94a68bd8 [ 61.519180][ T5066] [ 61.522187][ T5066] Modules linked in: [pid 5067] futex(0x7fbc44b20608, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5075 attached [pid 5073] set_robust_list(0x5555557b9760, 24 [pid 5069] write(3, "1000", 4 [pid 5075] set_robust_list(0x5555557b9760, 24 [pid 5074] <... write resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... set_robust_list resumed>) = 0 [pid 5069] <... write resumed>) = 4 [pid 5063] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5075] <... set_robust_list resumed>) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] close(3 [pid 5075] <... prctl resumed>) = 0 [pid 5073] <... prctl resumed>) = 0 [pid 5075] setpgid(0, 0 [pid 5073] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 5075] <... setpgid resumed>) = 0 [pid 5073] <... setpgid resumed>) = 0 [pid 5069] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... futex resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 5069] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5075] write(3, "1000", 4 [pid 5073] write(3, "1000", 4 [pid 5069] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5075] <... write resumed>) = 4 [pid 5073] <... write resumed>) = 4 [pid 5069] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5075] close(3 [pid 5073] close(3 [pid 5069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] futex(0x7fbc44b2060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... mmap resumed>) = 0x7fbc44a34000 [pid 5075] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 0 [pid 5069] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5075] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5073] rt_sigaction(SIGRT_1, {sa_handler=0x7fbc44ac5520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc44a67ac0}, [pid 5069] <... mprotect resumed>) = 0 [pid 5075] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5073] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5069] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5075] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5069] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5069] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5075] <... mmap resumed>) = 0x7fbc44a34000 [pid 5073] <... mmap resumed>) = 0x7fbc44a34000 [pid 5075] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5073] mprotect(0x7fbc44a35000, 131072, PROT_READ|PROT_WRITE [pid 5069] <... clone3 resumed> => {parent_tid=[5076]}, 88) = 5076 ./strace-static-x86_64: Process 5076 attached [pid 5075] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5073] <... mprotect resumed>) = 0 [pid 5069] rt_sigprocmask(SIG_SETMASK, [], [pid 5076] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5075] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5076] <... rseq resumed>) = 0 [pid 5075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5076] set_robust_list(0x7fbc44a549a0, 24 [pid 5073] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5075] <... clone3 resumed> => {parent_tid=[5077]}, 88) = 5077 [pid 5069] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] rt_sigprocmask(SIG_SETMASK, [], [pid 5073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbc44a54990, parent_tid=0x7fbc44a54990, exit_signal=0, stack=0x7fbc44a34000, stack_size=0x20240, tls=0x7fbc44a546c0} [pid 5069] <... futex resumed>) = 0 [pid 5076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5069] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] memfd_create("syzkaller", 0 [pid 5075] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... clone3 resumed> => {parent_tid=[5078]}, 88) = 5078 [pid 5076] <... memfd_create resumed>) = 3 [pid 5075] <... futex resumed>) = 0 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5078 attached ./strace-static-x86_64: Process 5077 attached [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 61.583192][ T5066] ---[ end trace 0000000000000000 ]--- [ 61.588694][ T5066] RIP: 0010:submit_bh_wbc+0x515/0x530 [ 61.594448][ T5066] Code: e8 f0 93 84 ff be 00 10 00 00 48 c7 c7 80 d6 45 8d 4c 89 ea e8 2c 3b 6e 02 e9 b1 fe ff ff e8 d2 93 84 ff 0f 0b e8 cb 93 84 ff <0f> 0b e8 c4 93 84 ff 0f 0b e8 bd 93 84 ff 0f 0b e8 b6 93 84 ff 0f [ 61.616012][ T5066] RSP: 0018:ffffc90003ddf858 EFLAGS: 00010293 [ 61.624519][ T5066] RAX: ffffffff820976a5 RBX: 0000000000000000 RCX: ffff888027e48000 [pid 5078] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5077] rseq(0x7fbc44a54fe0, 0x20, 0, 0x53053053 [pid 5076] <... mmap resumed>) = 0x7fbc3c634000 [pid 5073] futex(0x7fbc44b20608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... rseq resumed>) = 0 [pid 5077] <... rseq resumed>) = 0 [pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5073] <... futex resumed>) = 0 [pid 5078] set_robust_list(0x7fbc44a549a0, 24 [pid 5077] set_robust_list(0x7fbc44a549a0, 24 [pid 5073] futex(0x7fbc44b2060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... set_robust_list resumed>) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5078] rt_sigprocmask(SIG_SETMASK, [], [pid 5077] rt_sigprocmask(SIG_SETMASK, [], [pid 5078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5077] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5078] memfd_create("syzkaller", 0 [pid 5077] memfd_create("syzkaller", 0 [pid 5078] <... memfd_create resumed>) = 3 [pid 5077] <... memfd_create resumed>) = 3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... mmap resumed>) = 0x7fbc3c634000 [pid 5077] <... mmap resumed>) = 0x7fbc3c634000 [pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5070] +++ exited with 0 +++ [pid 5064] +++ exited with 0 +++ [pid 5074] futex(0x7fbc44b2061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5063] exit_group(0) = ? [pid 5031] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5031] ioctl(3, LOOP_CLR_FD) = 0 [pid 5031] close(3 [pid 5074] <... futex resumed>) = ? [pid 5067] <... futex resumed>) = ? [pid 5031] <... close resumed>) = 0 [ 61.634201][ T5066] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 61.642549][ T5066] RBP: 0000000000000000 R08: ffffffff82097234 R09: 1ffff1100ff5f8cb [ 61.650966][ T5066] R10: dffffc0000000000 R11: ffffed100ff5f8cc R12: ffff88807fafc658 [ 61.660036][ T5066] R13: 1ffff1100ff5f8cb R14: 0000000000000000 R15: ffff88807fafc658 [ 61.669407][ T5066] FS: 00007fbc3c7126c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached [pid 5078] <... write resumed>) = 1048576 [pid 5074] +++ exited with 0 +++ [pid 5067] +++ exited with 0 +++ [pid 5063] +++ exited with 0 +++ [pid 5031] <... clone resumed>, child_tidptr=0x5555557b9750) = 5079 [pid 5079] set_robust_list(0x5555557b9760, 24 [pid 5035] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5079] <... set_robust_list resumed>) = 0 [pid 5076] <... write resumed>) = 1048576 [pid 5076] munmap(0x7fbc3c634000, 1048576) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5076] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5076] ioctl(4, LOOP_CLR_FD) = 0 [pid 5078] munmap(0x7fbc3c634000, 1048576 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... munmap resumed>) = 0 [pid 5076] ioctl(4, LOOP_SET_FD, 3 [pid 5078] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5078] <... openat resumed>) = 4 [ 61.681136][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.688287][ T5066] CR2: 00007fbc44aeb858 CR3: 000000007366f000 CR4: 00000000003506f0 [ 61.697905][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.707586][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.716532][ T5066] Kernel panic - not syncing: Fatal exception [ 61.722724][ T5066] Kernel Offset: disabled [ 61.727041][ T5066] Rebooting in 86400 seconds..