./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor198041834 <...> Warning: Permanently added '10.128.0.124' (ED25519) to the list of known hosts. execve("./syz-executor198041834", ["./syz-executor198041834"], 0x7ffd87e27450 /* 10 vars */) = 0 brk(NULL) = 0x5555555bc000 brk(0x5555555bcd40) = 0x5555555bcd40 arch_prctl(ARCH_SET_FS, 0x5555555bc3c0) = 0 set_tid_address(0x5555555bc690) = 5027 set_robust_list(0x5555555bc6a0, 24) = 0 rseq(0x5555555bcce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor198041834", 4096) = 27 getrandom("\x9b\x45\xfc\x20\xd8\xad\xc5\x97", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555555bcd40 brk(0x5555555ddd40) = 0x5555555ddd40 brk(0x5555555de000) = 0x5555555de000 mprotect(0x7f0d05329000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5028 attached , child_tidptr=0x5555555bc690) = 5028 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] set_robust_list(0x5555555bc6a0, 24) = 0 [pid 5028] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5029 attached [pid 5027] <... clone resumed>, child_tidptr=0x5555555bc690) = 5029 [pid 5028] <... openat resumed>) = 3 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] set_robust_list(0x5555555bc6a0, 24 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5029] <... set_robust_list resumed>) = 0 [pid 5028] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5029] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5028] close(3./strace-static-x86_64: Process 5030 attached [pid 5027] <... clone resumed>, child_tidptr=0x5555555bc690) = 5030 [pid 5028] <... close resumed>) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] set_robust_list(0x5555555bc6a0, 24./strace-static-x86_64: Process 5031 attached [pid 5028] <... clone resumed>, child_tidptr=0x5555555bc690) = 5031 [pid 5031] set_robust_list(0x5555555bc6a0, 24) = 0 [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5031] setpgid(0, 0) = 0 [pid 5031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1000", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5031] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, NULL, 8) = 0 [pid 5031] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d0523f000 [pid 5031] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5031] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5031] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0} [pid 5030] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5032 attached [pid 5032] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053 [pid 5031] <... clone3 resumed> => {parent_tid=[5032]}, 88) = 5032 [pid 5030] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5032] <... rseq resumed>) = 0 [pid 5031] rt_sigprocmask(SIG_SETMASK, [], [pid 5032] set_robust_list(0x7f0d0525f9a0, 24 [pid 5031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5032] <... set_robust_list resumed>) = 0 [pid 5031] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] rt_sigprocmask(SIG_SETMASK, [], [pid 5031] <... futex resumed>) = 0 [pid 5032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5031] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5032] memfd_create("syzkaller", 0 [pid 5030] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5033 attached [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5027] <... clone resumed>, child_tidptr=0x5555555bc690) = 5033 [pid 5033] set_robust_list(0x5555555bc6a0, 24 [pid 5030] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5032] <... memfd_create resumed>) = 3 [pid 5032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0cfce3f000 [pid 5030] close(3 [pid 5029] close(3 [pid 5033] <... set_robust_list resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5029] <... close resumed>) = 0 ./strace-static-x86_64: Process 5034 attached [pid 5034] set_robust_list(0x5555555bc6a0, 24 [pid 5033] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5027] <... clone resumed>, child_tidptr=0x5555555bc690) = 5034 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5034] <... set_robust_list resumed>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5034] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5034] close(3) = 0 [pid 5034] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] <... clone resumed>, child_tidptr=0x5555555bc690) = 5035 [pid 5029] <... clone resumed>, child_tidptr=0x5555555bc690) = 5036 ./strace-static-x86_64: Process 5036 attached ./strace-static-x86_64: Process 5035 attached [pid 5033] <... openat resumed>) = 3 [pid 5036] set_robust_list(0x5555555bc6a0, 24 [pid 5035] set_robust_list(0x5555555bc6a0, 24./strace-static-x86_64: Process 5037 attached [pid 5036] <... set_robust_list resumed>) = 0 [pid 5035] <... set_robust_list resumed>) = 0 [pid 5033] ioctl(3, LOOP_CLR_FD [pid 5027] <... clone resumed>, child_tidptr=0x5555555bc690) = 5037 [pid 5037] set_robust_list(0x5555555bc6a0, 24 [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5037] <... set_robust_list resumed>) = 0 [pid 5036] <... prctl resumed>) = 0 [pid 5033] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5036] setpgid(0, 0) = 0 [pid 5033] close(3 [pid 5037] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5035] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5039 attached [pid 5036] <... openat resumed>) = 3 [pid 5034] <... clone resumed>, child_tidptr=0x5555555bc690) = 5039 [pid 5039] set_robust_list(0x5555555bc6a0, 24 [pid 5035] setpgid(0, 0 [pid 5033] <... close resumed>) = 0 [pid 5035] <... setpgid resumed>) = 0 [pid 5033] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5039] <... set_robust_list resumed>) = 0 [pid 5039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] write(3, "1000", 4 [pid 5039] <... prctl resumed>) = 0 [pid 5039] setpgid(0, 0 [pid 5035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... setpgid resumed>) = 0 [pid 5039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5037] <... openat resumed>) = 3 [pid 5036] <... write resumed>) = 4 [pid 5036] close(3 [pid 5039] <... openat resumed>) = 3 [pid 5036] <... close resumed>) = 0 [pid 5036] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] write(3, "1000", 4 [pid 5036] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, NULL, 8) = 0 [pid 5039] <... write resumed>) = 4 [pid 5036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5039] close(3 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5039] <... close resumed>) = 0 [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d0523f000 [pid 5039] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE [pid 5039] <... futex resumed>) = 0 [pid 5036] <... mprotect resumed>) = 0 [pid 5039] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5039] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5037] ioctl(3, LOOP_CLR_FD [pid 5036] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5035] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5040 attached [pid 5039] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5037] <... ioctl resumed>) = -1 ENXIO (No such device or address) [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=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0} [pid 5035] write(3, "1000", 4 [pid 5033] <... clone resumed>, child_tidptr=0x5555555bc690) = 5040 [pid 5040] set_robust_list(0x5555555bc6a0, 24 [pid 5037] close(3 [pid 5035] <... write resumed>) = 4 [pid 5037] <... close resumed>) = 0 [pid 5035] close(3 [pid 5037] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5035] <... close resumed>) = 0 [pid 5040] <... set_robust_list resumed>) = 0 [pid 5039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5040] <... prctl resumed>) = 0 [pid 5039] <... mmap resumed>) = 0x7f0d0523f000 [pid 5036] <... clone3 resumed> => {parent_tid=[5041]}, 88) = 5041 [pid 5035] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] setpgid(0, 0 [pid 5039] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE [pid 5037] <... clone resumed>, child_tidptr=0x5555555bc690) = 5042 [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5035] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5042 attached [pid 5040] <... setpgid resumed>) = 0 [pid 5039] <... mprotect resumed>) = 0 [ 74.686911][ T5032] syz-executor198[5032]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5035] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, [pid 5042] set_robust_list(0x5555555bc6a0, 24 [pid 5040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5036] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5041 attached [pid 5042] <... set_robust_list resumed>) = 0 [pid 5040] <... openat resumed>) = 3 [pid 5039] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5036] <... futex resumed>) = 0 [pid 5035] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5041] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053 [pid 5040] write(3, "1000", 4 [pid 5039] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0} [pid 5036] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5035] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5043 attached [pid 5041] <... rseq resumed>) = 0 [pid 5040] <... write resumed>) = 4 [pid 5043] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053 [pid 5041] set_robust_list(0x7f0d0525f9a0, 24 [pid 5040] close(3 [pid 5039] <... clone3 resumed> => {parent_tid=[5043]}, 88) = 5043 [pid 5043] <... rseq resumed>) = 0 [pid 5042] <... prctl resumed>) = 0 [pid 5041] <... set_robust_list resumed>) = 0 [pid 5040] <... close resumed>) = 0 [pid 5039] rt_sigprocmask(SIG_SETMASK, [], [pid 5035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5043] set_robust_list(0x7f0d0525f9a0, 24 [pid 5042] setpgid(0, 0 [pid 5041] rt_sigprocmask(SIG_SETMASK, [], [pid 5040] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5035] <... mmap resumed>) = 0x7f0d0523f000 [pid 5042] <... setpgid resumed>) = 0 [pid 5035] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5041] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5039] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5041] memfd_create("syzkaller", 0 [pid 5039] <... futex resumed>) = 0 [pid 5035] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5043] <... set_robust_list resumed>) = 0 [pid 5041] <... memfd_create resumed>) = 3 [pid 5040] <... futex resumed>) = 0 [pid 5039] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5043] rt_sigprocmask(SIG_SETMASK, [], [pid 5041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5040] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, [pid 5043] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5042] <... openat resumed>) = 3 [pid 5041] <... mmap resumed>) = 0x7f0cfce3f000 [pid 5035] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5043] memfd_create("syzkaller", 0 [pid 5042] write(3, "1000", 4 [pid 5035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0} [pid 5043] <... memfd_create resumed>) = 3 [pid 5040] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5044 attached [pid 5043] <... mmap resumed>) = 0x7f0cfce3f000 [pid 5042] <... write resumed>) = 4 [pid 5040] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5044] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053 [pid 5042] close(3 [pid 5040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5035] <... clone3 resumed> => {parent_tid=[5044]}, 88) = 5044 [pid 5044] <... rseq resumed>) = 0 [pid 5042] <... close resumed>) = 0 [pid 5042] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] rt_sigprocmask(SIG_SETMASK, [], [pid 5044] set_robust_list(0x7f0d0525f9a0, 24 [pid 5042] <... futex resumed>) = 0 [pid 5035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5044] <... set_robust_list resumed>) = 0 [pid 5042] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d052c8860, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d052b9f10}, [pid 5035] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] rt_sigprocmask(SIG_SETMASK, [], [pid 5042] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5035] <... futex resumed>) = 0 [pid 5044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5040] <... mmap resumed>) = 0x7f0d0523f000 [pid 5035] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5040] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE [pid 5042] <... mmap resumed>) = 0x7f0d0523f000 [pid 5042] mprotect(0x7f0d05240000, 131072, PROT_READ|PROT_WRITE [pid 5040] <... mprotect resumed>) = 0 [pid 5044] memfd_create("syzkaller", 0 [pid 5042] <... mprotect resumed>) = 0 [pid 5040] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5042] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5044] <... memfd_create resumed>) = 3 [pid 5042] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0cfce3f000 [pid 5042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0} [pid 5040] <... rt_sigprocmask resumed>[], 8) = 0 [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=0x7f0d0525f990, parent_tid=0x7f0d0525f990, exit_signal=0, stack=0x7f0d0523f000, stack_size=0x20300, tls=0x7f0d0525f6c0}./strace-static-x86_64: Process 5045 attached => {parent_tid=[5045]}, 88) = 5045 [pid 5040] rt_sigprocmask(SIG_SETMASK, [], [pid 5045] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053) = 0 [pid 5040] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5045] set_robust_list(0x7f0d0525f9a0, 24 [pid 5040] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... set_robust_list resumed>) = 0 [pid 5040] <... futex resumed>) = 0 [pid 5045] rt_sigprocmask(SIG_SETMASK, [], [pid 5042] <... clone3 resumed> => {parent_tid=[5046]}, 88) = 5046 [pid 5040] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5046 attached [pid 5045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5042] rt_sigprocmask(SIG_SETMASK, [], [pid 5046] rseq(0x7f0d0525ffe0, 0x20, 0, 0x53053053) = 0 [pid 5046] set_robust_list(0x7f0d0525f9a0, 24) = 0 [pid 5046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5046] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5045] memfd_create("syzkaller", 0 [pid 5042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5042] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5045] <... memfd_create resumed>) = 3 [pid 5046] <... futex resumed>) = 0 [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5042] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5046] memfd_create("syzkaller", 0 [pid 5045] <... mmap resumed>) = 0x7f0cfce3f000 [pid 5046] <... memfd_create resumed>) = 3 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0cfce3f000 [pid 5032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 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"..., 16777216 [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"..., 16777216 [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"..., 16777216 [pid 5041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 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"..., 16777216 [pid 5032] <... write resumed>) = 16777216 [pid 5032] munmap(0x7f0cfce3f000, 16777216 [pid 5044] <... write resumed>) = 16777216 [pid 5045] <... write resumed>) = 16777216 [pid 5044] munmap(0x7f0cfce3f000, 16777216 [pid 5032] <... munmap resumed>) = 0 [pid 5045] munmap(0x7f0cfce3f000, 16777216 [pid 5032] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5032] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5044] <... munmap resumed>) = 0 [pid 5032] close(3 [pid 5045] <... munmap resumed>) = 0 [pid 5044] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5032] <... close resumed>) = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5032] mkdir("./bus", 0777 [pid 5044] <... openat resumed>) = 4 [pid 5044] ioctl(4, LOOP_SET_FD, 3 [pid 5045] <... openat resumed>) = 4 [pid 5045] ioctl(4, LOOP_SET_FD, 3 [pid 5032] <... mkdir resumed>) = 0 [pid 5032] mount("/dev/loop0", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [pid 5044] <... ioctl resumed>) = 0 [pid 5045] <... ioctl resumed>) = 0 [pid 5045] close(3 [pid 5044] close(3) = 0 [pid 5045] <... close resumed>) = 0 [pid 5044] mkdir("./bus", 0777 [pid 5045] mkdir("./bus", 0777 [pid 5044] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5045] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5044] mount("/dev/loop2", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [ 75.802867][ T5032] loop0: detected capacity change from 0 to 32768 [ 75.836864][ T5044] loop2: detected capacity change from 0 to 32768 [ 75.846552][ T5045] loop3: detected capacity change from 0 to 32768 [pid 5045] mount("/dev/loop3", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [pid 5032] <... mount resumed>) = 0 [pid 5045] <... mount resumed>) = 0 [pid 5044] <... mount resumed>) = 0 [pid 5041] <... write resumed>) = 16777216 [pid 5032] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5045] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5044] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5032] <... openat resumed>) = 3 [pid 5045] <... openat resumed>) = 3 [pid 5044] <... openat resumed>) = 3 [pid 5032] chdir("./bus" [pid 5045] chdir("./bus" [pid 5044] chdir("./bus" [pid 5041] munmap(0x7f0cfce3f000, 16777216 [pid 5032] <... chdir resumed>) = 0 [pid 5045] <... chdir resumed>) = 0 [pid 5044] <... chdir resumed>) = 0 [pid 5032] ioctl(4, LOOP_CLR_FD [pid 5045] ioctl(4, LOOP_CLR_FD [pid 5044] ioctl(4, LOOP_CLR_FD [pid 5032] <... ioctl resumed>) = 0 [pid 5044] <... ioctl resumed>) = 0 [pid 5032] close(4 [pid 5044] close(4 [pid 5032] <... close resumed>) = 0 [pid 5044] <... close resumed>) = 0 [pid 5032] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... ioctl resumed>) = 0 [pid 5032] <... futex resumed>) = 1 [pid 5045] close(4 [pid 5032] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5045] <... close resumed>) = 0 [pid 5044] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 1 [pid 5045] <... futex resumed>) = 1 [pid 5044] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5045] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] <... futex resumed>) = 0 [pid 5035] <... futex resumed>) = 0 [pid 5040] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5035] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... futex resumed>) = 0 [pid 5040] <... futex resumed>) = 1 [pid 5045] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5044] <... futex resumed>) = 0 [pid 5035] <... futex resumed>) = 1 [pid 5044] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5040] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] <... futex resumed>) = 0 [pid 5031] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] <... futex resumed>) = 0 [pid 5031] <... futex resumed>) = 1 [pid 5031] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5032] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5044] <... openat resumed>) = 4 [pid 5032] <... openat resumed>) = 4 [pid 5044] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 1 [pid 5035] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = 1 [pid 5031] <... futex resumed>) = 0 [pid 5035] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5031] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... openat resumed>) = 4 [pid 5044] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5035] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5031] <... futex resumed>) = 0 [pid 5045] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] <... write resumed>) = 16777216 [pid 5041] <... munmap resumed>) = 0 [pid 5035] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5032] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5031] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5040] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5040] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5041] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5041] ioctl(4, LOOP_SET_FD, 3 [pid 5043] munmap(0x7f0cfce3f000, 16777216 [pid 5046] <... write resumed>) = 16777216 [pid 5046] munmap(0x7f0cfce3f000, 16777216 [pid 5041] <... ioctl resumed>) = 0 [pid 5041] close(3) = 0 [pid 5041] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 5041] mount("/dev/loop1", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [pid 5035] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5035] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0cfde1e000 [pid 5040] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5035] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE [pid 5040] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5035] <... mprotect resumed>) = 0 [pid 5040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5035] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5040] <... mmap resumed>) = 0x7f0cfde1e000 [pid 5035] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5040] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE [pid 5035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0} [pid 5040] <... mprotect resumed>) = 0 [pid 5040] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5049 attached [], 8) = 0 [pid 5035] <... clone3 resumed> => {parent_tid=[5049]}, 88) = 5049 [pid 5049] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [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=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0} [pid 5035] rt_sigprocmask(SIG_SETMASK, [], [pid 5049] <... rseq resumed>) = 0 [pid 5035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5049] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5040] <... clone3 resumed> => {parent_tid=[5050]}, 88) = 5050 [pid 5035] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5049] <... set_robust_list resumed>) = 0 [pid 5040] rt_sigprocmask(SIG_SETMASK, [], [pid 5035] <... futex resumed>) = 0 [pid 5049] rt_sigprocmask(SIG_SETMASK, [], [pid 5040] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5035] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5050 attached [pid 5049] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5040] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [pid 5049] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5040] <... futex resumed>) = 0 [pid 5050] <... rseq resumed>) = 0 [pid 5049] <... openat resumed>) = 5 [pid 5043] <... munmap resumed>) = 0 [pid 5040] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 75.968782][ T5041] loop1: detected capacity change from 0 to 32768 [pid 5050] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5031] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] <... set_robust_list resumed>) = 0 [pid 5043] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5031] <... futex resumed>) = 0 [pid 5050] rt_sigprocmask(SIG_SETMASK, [], [pid 5031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5050] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5043] <... openat resumed>) = 4 [pid 5031] <... mmap resumed>) = 0x7f0cfde1e000 [pid 5050] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5031] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE [pid 5050] <... openat resumed>) = 5 [pid 5043] ioctl(4, LOOP_SET_FD, 3 [pid 5031] <... mprotect resumed>) = 0 [pid 5050] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... munmap resumed>) = 0 [pid 5031] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5050] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5031] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5050] futex(0x7f0d0532f6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5049] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5040] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0} [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5049] <... futex resumed>) = 1 [pid 5046] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5035] <... futex resumed>) = 0 [pid 5050] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 22115424 [pid 5040] <... futex resumed>) = 0 [pid 5035] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5051 attached [pid 5049] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 22115424 [pid 5046] <... openat resumed>) = 4 [pid 5040] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] <... futex resumed>) = 0 [pid 5031] <... clone3 resumed> => {parent_tid=[5051]}, 88) = 5051 [pid 5051] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [pid 5035] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] rt_sigprocmask(SIG_SETMASK, [], [pid 5051] <... rseq resumed>) = 0 [pid 5046] ioctl(4, LOOP_SET_FD, 3 [pid 5041] <... mount resumed>) = 0 [pid 5031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5031] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... set_robust_list resumed>) = 0 [pid 5031] <... futex resumed>) = 0 [pid 5051] rt_sigprocmask(SIG_SETMASK, [], [pid 5031] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5041] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5041] chdir("./bus") = 0 [pid 5046] <... ioctl resumed>) = 0 [pid 5043] <... ioctl resumed>) = 0 [pid 5041] ioctl(4, LOOP_CLR_FD) = 0 [pid 5046] close(3 [pid 5043] close(3 [pid 5041] close(4 [pid 5046] <... close resumed>) = 0 [pid 5043] <... close resumed>) = 0 [pid 5041] <... close resumed>) = 0 [pid 5046] mkdir("./bus", 0777 [pid 5043] mkdir("./bus", 0777 [pid 5041] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5041] <... futex resumed>) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5046] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5043] mount("/dev/loop4", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [pid 5041] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5046] mount("/dev/loop5", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "quota,nodiscard,nodiscard,nodiscard,discard=0x0000000000000008,iocharset=cp852,uid=0x000000000000000"... [pid 5044] <... write resumed>) = 1048064 [pid 5032] <... write resumed>) = 1048064 [pid 5044] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = 0 [pid 5044] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5032] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5041] <... openat resumed>) = 4 [ 76.040486][ T5043] loop4: detected capacity change from 0 to 32768 [ 76.074016][ T5046] loop5: detected capacity change from 0 to 32768 [pid 5041] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5045] <... write resumed>) = 1048064 [pid 5041] <... futex resumed>) = 1 [pid 5040] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5036] <... futex resumed>) = 0 [pid 5035] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5036] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5036] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5031] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5031] <... futex resumed>) = 1 [pid 5045] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5032] <... futex resumed>) = 0 [pid 5031] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] <... futex resumed>) = 0 [pid 5032] write(-1, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 22115424 [pid 5045] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5032] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5032] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5031] <... futex resumed>) = 0 [pid 5032] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] <... mount resumed>) = 0 [pid 5043] <... mount resumed>) = 0 [pid 5043] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5046] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5046] chdir("./bus" [pid 5043] <... openat resumed>) = 3 [pid 5046] <... chdir resumed>) = 0 [pid 5043] chdir("./bus") = 0 [pid 5046] ioctl(4, LOOP_CLR_FD) = 0 [pid 5043] ioctl(4, LOOP_CLR_FD [pid 5046] close(4 [pid 5043] <... ioctl resumed>) = 0 [pid 5046] <... close resumed>) = 0 [pid 5043] close(4 [pid 5036] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5043] <... close resumed>) = 0 [pid 5046] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5043] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... futex resumed>) = 0 [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5046] <... futex resumed>) = 1 [pid 5043] <... futex resumed>) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5039] <... futex resumed>) = 0 [pid 5046] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5043] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5039] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... mmap resumed>) = 0x7f0cfde1e000 [pid 5043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5043] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5042] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] <... futex resumed>) = 0 [pid 5036] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE [pid 5042] <... futex resumed>) = 1 [pid 5042] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5046] <... futex resumed>) = 0 [pid 5039] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... mprotect resumed>) = 0 [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5043] <... openat resumed>) = 4 [pid 5041] <... write resumed>) = 1048064 [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=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0} [pid 5046] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 [pid 5041] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... openat resumed>) = 4 [pid 5046] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5041] futex(0x7f0d0532f6c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5052 attached [pid 5046] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5043] futex(0x7f0d0532f6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... clone3 resumed> => {parent_tid=[5052]}, 88) = 5052 [pid 5052] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [pid 5043] <... futex resumed>) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5039] <... futex resumed>) = 0 [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5052] <... rseq resumed>) = 0 [pid 5043] write(4, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf"..., 1048064 [pid 5042] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5039] <... futex resumed>) = 0 [pid 5036] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5039] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... futex resumed>) = 0 [pid 5052] <... set_robust_list resumed>) = 0 [pid 5036] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5052] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5052] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7f0d0532f6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5052] futex(0x7f0d0532f6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] <... futex resumed>) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5041] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 22115424 [pid 5036] futex(0x7f0d0532f6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5042] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0cfde1e000 [pid 5042] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0} => {parent_tid=[5053]}, 88) = 5053 ./strace-static-x86_64: Process 5053 attached [pid 5042] rt_sigprocmask(SIG_SETMASK, [], [pid 5039] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5053] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [pid 5042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] <... rseq resumed>) = 0 [pid 5042] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5042] <... futex resumed>) = 0 [pid 5053] <... set_robust_list resumed>) = 0 [pid 5042] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] <... futex resumed>) = 0 [pid 5053] rt_sigprocmask(SIG_SETMASK, [], [pid 5039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5053] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5053] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5039] <... mmap resumed>) = 0x7f0cfde1e000 [pid 5053] <... openat resumed>) = 5 [pid 5039] mprotect(0x7f0cfde1f000, 131072, PROT_READ|PROT_WRITE [pid 5053] futex(0x7f0d0532f6dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5053] futex(0x7f0d0532f6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5042] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5039] <... mprotect resumed>) = 0 [pid 5053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... futex resumed>) = 0 [pid 5039] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5053] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 22115424 [pid 5042] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5039] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0cfde3e990, parent_tid=0x7f0cfde3e990, exit_signal=0, stack=0x7f0cfde1e000, stack_size=0x20300, tls=0x7f0cfde3e6c0}./strace-static-x86_64: Process 5054 attached => {parent_tid=[5054]}, 88) = 5054 [pid 5054] rseq(0x7f0cfde3efe0, 0x20, 0, 0x53053053 [pid 5039] rt_sigprocmask(SIG_SETMASK, [], [pid 5036] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5054] <... rseq resumed>) = 0 [pid 5039] futex(0x7f0d0532f6d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] set_robust_list(0x7f0cfde3e9a0, 24 [pid 5039] futex(0x7f0d0532f6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5054] <... set_robust_list resumed>) = 0 [pid 5054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5054] openat(AT_FDCWD, "blkio.bfq.sectors", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5042] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 76.337562][ T5046] ================================================================================ [ 76.337729][ T5053] ================================================================================ [ 76.357244][ T5046] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:622:9 [ 76.381877][ T5046] index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]') [ 76.385835][ T5053] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:270:11 [ 76.390463][ T5046] CPU: 0 PID: 5046 Comm: syz-executor198 Not tainted 6.6.0-rc4-syzkaller-00037-g3006adf3be79 #0 [ 76.408260][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 76.418340][ T5046] Call Trace: [ 76.419685][ T5053] index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]') [ 76.421617][ T5046] [ 76.421628][ T5046] dump_stack_lvl+0x1e7/0x2d0 [ 76.437521][ T5046] ? __get_metapage+0x9b2/0x1040 [ 76.442493][ T5046] ? nf_tcp_handle_invalid+0x650/0x650 [ 76.447979][ T5046] ? panic+0x770/0x770 [ 76.452113][ T5046] __ubsan_handle_out_of_bounds+0x11c/0x150 [ 76.458068][ T5046] xtInsert+0xf45/0xfa0 [ 76.462840][ T5046] ? xtSearch+0x1ca0/0x1ca0 [ 76.467416][ T5046] ? mark_lock+0x9a/0x340 [ 76.471781][ T5046] ? dquot_drop+0x2a0/0x2a0 [ 76.476311][ T5046] ? rcu_is_watching+0x15/0xb0 [ 76.481090][ T5046] ? __mark_inode_dirty+0x3e7/0xd90 [ 76.486310][ T5046] extAlloc+0xa74/0x1000 [ 76.490578][ T5046] ? jfs_ioc_trim+0x660/0x660 [ 76.495265][ T5046] ? clear_nonspinnable+0x60/0x60 [ 76.500303][ T5046] jfs_get_block+0x41b/0xe60 [ 76.507020][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 76.511987][ T5046] ? _raw_spin_unlock+0x28/0x40 [ 76.516853][ T5046] ? folio_create_buffers+0x132/0x250 [ 76.522235][ T5046] __block_write_begin_int+0x54d/0x1ac0 [ 76.527787][ T5046] ? folio_add_lru+0x27b/0x9d0 [ 76.532575][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 76.537521][ T5046] ? folio_zero_new_buffers+0x530/0x530 [ 76.543082][ T5046] ? pagecache_get_page+0x243/0x590 [ 76.548295][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 76.553244][ T5046] block_write_begin+0x9b/0x1e0 [ 76.558111][ T5046] jfs_write_begin+0x31/0x70 [ 76.562716][ T5046] generic_perform_write+0x31b/0x630 [ 76.568026][ T5046] ? generic_file_direct_write+0x3f0/0x3f0 [ 76.573849][ T5046] ? __mnt_drop_write_file+0xc2/0x100 [ 76.579236][ T5046] ? __generic_file_write_iter+0x101/0x230 [ 76.585054][ T5046] generic_file_write_iter+0xaf/0x310 [ 76.590458][ T5046] vfs_write+0x782/0xaf0 [ 76.594728][ T5046] ? file_end_write+0x250/0x250 [ 76.599596][ T5046] ? __fget_files+0x28/0x4a0 [ 76.604189][ T5046] ? __fget_files+0x435/0x4a0 [ 76.608880][ T5046] ? __fdget_pos+0x2b0/0x340 [ 76.613475][ T5046] ? ksys_write+0x7b/0x2c0 [ 76.617912][ T5046] ksys_write+0x1a0/0x2c0 [ 76.622263][ T5046] ? __ia32_sys_read+0x90/0x90 [ 76.627041][ T5046] ? syscall_enter_from_user_mode+0x32/0x230 [ 76.633037][ T5046] ? syscall_enter_from_user_mode+0x8c/0x230 [ 76.639046][ T5046] do_syscall_64+0x41/0xc0 [ 76.643473][ T5046] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 76.649374][ T5046] RIP: 0033:0x7f0d052a2979 [ 76.653797][ T5046] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 76.673470][ T5046] RSP: 002b:00007f0d0525f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.681896][ T5046] RAX: ffffffffffffffda RBX: 00007f0d0532f6c8 RCX: 00007f0d052a2979 [ 76.689870][ T5046] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004 [ 76.697845][ T5046] RBP: 00007f0d0532f6c0 R08: 0000000000000000 R09: 0000000000000000 [ 76.705819][ T5046] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d052fc30c [ 76.713967][ T5046] R13: 00007f0d052f607e R14: 7261637369646f6e R15: 6573726168636f69 [ 76.721960][ T5046] [ 76.725402][ T5053] CPU: 0 PID: 5053 Comm: syz-executor198 Not tainted 6.6.0-rc4-syzkaller-00037-g3006adf3be79 #0 [ 76.726552][ T5046] ================================================================================ [ 76.735829][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 76.735845][ T5053] Call Trace: [ 76.735856][ T5053] [ 76.735865][ T5053] dump_stack_lvl+0x1e7/0x2d0 [ 76.735897][ T5053] ? nf_tcp_handle_invalid+0x650/0x650 [ 76.735920][ T5053] ? panic+0x770/0x770 [ 76.735956][ T5053] ? folio_unlock+0x126/0x2f0 [ 76.747099][ T5046] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [pid 5039] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5039] futex(0x7f0d0532f6ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0cfddfd000 [pid 5039] mprotect(0x7f0cfddfe000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5039] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5039] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0cfde1d990, parent_tid=0x7f0cfde1d990, exit_signal=0, stack=0x7f0cfddfd000, stack_size=0x20300, tls=0x7f0cfde1d6c0} => {parent_tid=[5055]}, 88) = 5055 [pid 5039] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5039] futex(0x7f0d0532f6e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 76.755267][ T5053] __ubsan_handle_out_of_bounds+0x11c/0x150 [ 76.755296][ T5053] ? __lock_acquire+0x1345/0x7f70 [ 76.755318][ T5053] xtSearch+0x10e8/0x1ca0 [ 76.755365][ T5053] xtLookup+0x2c4/0x8e0 [ 76.755398][ T5053] ? jfs_umount_rw+0x130/0x130 [ 76.755420][ T5053] ? block_write_begin+0x9b/0x1e0 [ 76.755476][ T5053] extHint+0x295/0x710 [ 76.755502][ T5053] ? extAlloc+0x1000/0x1000 [ 76.755524][ T5053] ? clear_nonspinnable+0x60/0x60 [ 76.755552][ T5053] jfs_get_block+0x3ab/0xe60 [ 76.755586][ T5053] ? jfs_dirty_inode+0x240/0x240 [ 76.755617][ T5053] ? _raw_spin_unlock+0x28/0x40 [ 76.755642][ T5053] ? folio_create_buffers+0x132/0x250 [ 76.755665][ T5053] __block_write_begin_int+0x54d/0x1ac0 [ 76.755684][ T5053] ? folio_add_lru+0x27b/0x9d0 [ 76.755722][ T5053] ? jfs_dirty_inode+0x240/0x240 [ 76.755744][ T5053] ? folio_zero_new_buffers+0x530/0x530 [ 76.755768][ T5053] ? pagecache_get_page+0x243/0x590 [ 76.755796][ T5053] ? jfs_dirty_inode+0x240/0x240 [ 76.755818][ T5053] block_write_begin+0x9b/0x1e0 [ 76.755841][ T5053] jfs_write_begin+0x31/0x70 [ 76.755865][ T5053] generic_perform_write+0x31b/0x630 [ 76.755899][ T5053] ? generic_file_direct_write+0x3f0/0x3f0 [ 76.755926][ T5053] ? __generic_file_write_iter+0x101/0x230 [ 76.755948][ T5053] generic_file_write_iter+0xaf/0x310 [ 76.755971][ T5053] vfs_write+0x782/0xaf0 [ 76.756007][ T5053] ? file_end_write+0x250/0x250 [ 76.756037][ T5053] ? __fget_files+0x28/0x4a0 [ 76.756052][ T5053] ? __fget_files+0x435/0x4a0 [ 76.756077][ T5053] ? __fdget_pos+0x2b0/0x340 [ 76.756091][ T5053] ? ksys_write+0x7b/0x2c0 [ 76.756119][ T5053] ksys_write+0x1a0/0x2c0 [ 76.756150][ T5053] ? __ia32_sys_read+0x90/0x90 [ 76.756178][ T5053] ? syscall_enter_from_user_mode+0x32/0x230 [ 76.756204][ T5053] ? syscall_enter_from_user_mode+0x8c/0x230 [ 76.756230][ T5053] do_syscall_64+0x41/0xc0 [ 76.756249][ T5053] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 76.756268][ T5053] RIP: 0033:0x7f0d052a2979 [ 76.756283][ T5053] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 76.756297][ T5053] RSP: 002b:00007f0cfde3e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.756314][ T5053] RAX: ffffffffffffffda RBX: 00007f0d0532f6d8 RCX: 00007f0d052a2979 [ 76.756326][ T5053] RDX: 0000000001517460 RSI: 0000000020000580 RDI: 0000000000000005 [ 76.756337][ T5053] RBP: 00007f0d0532f6d0 R08: 0000000000000000 R09: 0000000000000000 [ 76.756347][ T5053] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d052fc30c [ 76.756357][ T5053] R13: 000000000000006e R14: 7261637369646f6e R15: 00007ffc84df0ce8 [ 76.756384][ T5053] [ 76.756390][ T5046] CPU: 1 PID: 5046 Comm: syz-executor198 Not tainted 6.6.0-rc4-syzkaller-00037-g3006adf3be79 #0 [ 77.064939][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 77.075048][ T5046] Call Trace: [ 77.078353][ T5046] [ 77.081304][ T5046] dump_stack_lvl+0x1e7/0x2d0 [ 77.086011][ T5046] ? nf_tcp_handle_invalid+0x650/0x650 [ 77.091490][ T5046] ? panic+0x770/0x770 [ 77.095611][ T5046] ? vscnprintf+0x5d/0x80 [ 77.099967][ T5046] panic+0x30f/0x770 [ 77.104005][ T5046] ? check_panic_on_warn+0x21/0xa0 [ 77.109262][ T5046] ? __memcpy_flushcache+0x2b0/0x2b0 [ 77.114582][ T5046] ? dump_stack_lvl+0x253/0x2d0 [ 77.119467][ T5046] check_panic_on_warn+0x82/0xa0 [ 77.124433][ T5046] __ubsan_handle_out_of_bounds+0x13c/0x150 [ 77.130356][ T5046] xtInsert+0xf45/0xfa0 [ 77.134556][ T5046] ? xtSearch+0x1ca0/0x1ca0 [ 77.139101][ T5046] ? mark_lock+0x9a/0x340 [ 77.143539][ T5046] ? dquot_drop+0x2a0/0x2a0 [ 77.148074][ T5046] ? rcu_is_watching+0x15/0xb0 [ 77.152898][ T5046] ? __mark_inode_dirty+0x3e7/0xd90 [ 77.158153][ T5046] extAlloc+0xa74/0x1000 [ 77.162448][ T5046] ? jfs_ioc_trim+0x660/0x660 [ 77.167330][ T5046] ? clear_nonspinnable+0x60/0x60 [ 77.172950][ T5046] jfs_get_block+0x41b/0xe60 [ 77.177604][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 77.182585][ T5046] ? _raw_spin_unlock+0x28/0x40 [ 77.187575][ T5046] ? folio_create_buffers+0x132/0x250 [ 77.192970][ T5046] __block_write_begin_int+0x54d/0x1ac0 [ 77.198539][ T5046] ? folio_add_lru+0x27b/0x9d0 [ 77.203361][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 77.208343][ T5046] ? folio_zero_new_buffers+0x530/0x530 [ 77.213943][ T5046] ? pagecache_get_page+0x243/0x590 [ 77.219179][ T5046] ? jfs_dirty_inode+0x240/0x240 [ 77.224267][ T5046] block_write_begin+0x9b/0x1e0 [ 77.229155][ T5046] jfs_write_begin+0x31/0x70 [ 77.234055][ T5046] generic_perform_write+0x31b/0x630 [ 77.239370][ T5046] ? generic_file_direct_write+0x3f0/0x3f0 [ 77.245192][ T5046] ? __mnt_drop_write_file+0xc2/0x100 [ 77.250684][ T5046] ? __generic_file_write_iter+0x101/0x230 [ 77.256516][ T5046] generic_file_write_iter+0xaf/0x310 [ 77.261907][ T5046] vfs_write+0x782/0xaf0 [ 77.266178][ T5046] ? file_end_write+0x250/0x250 [ 77.271052][ T5046] ? __fget_files+0x28/0x4a0 [ 77.275687][ T5046] ? __fget_files+0x435/0x4a0 [ 77.280394][ T5046] ? __fdget_pos+0x2b0/0x340 [ 77.285005][ T5046] ? ksys_write+0x7b/0x2c0 [ 77.289461][ T5046] ksys_write+0x1a0/0x2c0 [ 77.293814][ T5046] ? __ia32_sys_read+0x90/0x90 [ 77.298603][ T5046] ? syscall_enter_from_user_mode+0x32/0x230 [ 77.304616][ T5046] ? syscall_enter_from_user_mode+0x8c/0x230 [ 77.310617][ T5046] do_syscall_64+0x41/0xc0 [ 77.315057][ T5046] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 77.321069][ T5046] RIP: 0033:0x7f0d052a2979 [ 77.325512][ T5046] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 77.345140][ T5046] RSP: 002b:00007f0d0525f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.353598][ T5046] RAX: ffffffffffffffda RBX: 00007f0d0532f6c8 RCX: 00007f0d052a2979 [ 77.361678][ T5046] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004 [ 77.369681][ T5046] RBP: 00007f0d0532f6c0 R08: 0000000000000000 R09: 0000000000000000 [ 77.377669][ T5046] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d052fc30c [ 77.385655][ T5046] R13: 00007f0d052f607e R14: 7261637369646f6e R15: 6573726168636f69 [ 77.393663][ T5046] [ 77.397019][ T5046] Kernel Offset: disabled [ 77.401452][ T5046] Rebooting in 86400 seconds..