./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1491725551 <...> Warning: Permanently added '10.128.0.251' (ED25519) to the list of known hosts. execve("./syz-executor1491725551", ["./syz-executor1491725551"], 0x7ffcf2ade3f0 /* 10 vars */) = 0 brk(NULL) = 0x5555934bc000 brk(0x5555934bcd40) = 0x5555934bcd40 arch_prctl(ARCH_SET_FS, 0x5555934bc3c0) = 0 set_tid_address(0x5555934bc690) = 5072 set_robust_list(0x5555934bc6a0, 24) = 0 rseq(0x5555934bcce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1491725551", 4096) = 28 getrandom("\x3a\x62\xe5\x39\xfe\xfa\x67\x36", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555934bcd40 brk(0x5555934ddd40) = 0x5555934ddd40 brk(0x5555934de000) = 0x5555934de000 mprotect(0x7f7d8d3c3000, 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 5073 attached , child_tidptr=0x5555934bc690) = 5073 [pid 5073] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5073] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [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=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0} => {parent_tid=[5074]}, 88) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5074] <... rseq resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] <... futex resumed>) = 0 [pid 5074] rt_sigprocmask(SIG_SETMASK, [], [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] <... futex resumed>) = 0 [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] mkdirat(AT_FDCWD, "./file1", 000 [pid 5073] <... futex resumed>) = 1 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... mkdirat resumed>) = 0 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] <... futex resumed>) = 0 [pid 5074] mkdirat(AT_FDCWD, "./bus", 000 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... mkdirat resumed>) = 0 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] <... futex resumed>) = 0 [pid 5074] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... mount resumed>) = 0 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = 1 [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] chdir("./bus" [pid 5073] <... futex resumed>) = 0 [pid 5074] <... chdir resumed>) = 0 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] <... futex resumed>) = 0 [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5074] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... open resumed>) = 3 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] <... futex resumed>) = 0 [pid 5074] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... mknod resumed>) = 0 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] <... futex resumed>) = 0 [pid 5074] open("./file0", O_RDWR [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... open resumed>) = 4 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] <... futex resumed>) = 0 [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC) = 5 [pid 5074] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5074] splice(4, NULL, 5, NULL, 3286, 0 [ 63.851206][ T5074] evm: overlay not supported [pid 5073] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5073] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5073] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [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=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5075 attached [pid 5075] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053) = 0 [pid 5073] <... clone3 resumed> => {parent_tid=[5075]}, 88) = 5075 [pid 5075] set_robust_list(0x7f7d8d2d99a0, 24 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] <... set_robust_list resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5073] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000 [pid 5073] <... futex resumed>) = 0 [pid 5075] <... open resumed>) = 6 [pid 5073] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = 0 [pid 5075] <... futex resumed>) = 1 [pid 5073] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5073] <... futex resumed>) = 0 [pid 5075] <... openat resumed>) = 7 [pid 5073] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 0 [pid 5075] write(7, "0x0000000000000000", 18) = 18 [pid 5073] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5073] futex(0x7f7d8d3c942c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... mmap resumed>) = 0x7f7d8d298000 [pid 5075] <... futex resumed>) = 0 [pid 5075] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] mprotect(0x7f7d8d299000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [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=0x7f7d8d2b8990, parent_tid=0x7f7d8d2b8990, exit_signal=0, stack=0x7f7d8d298000, stack_size=0x20300, tls=0x7f7d8d2b86c0}./strace-static-x86_64: Process 5078 attached [pid 5078] rseq(0x7f7d8d2b8fe0, 0x20, 0, 0x53053053 [pid 5073] <... clone3 resumed> => {parent_tid=[5078]}, 88) = 5078 [pid 5078] <... rseq resumed>) = 0 [pid 5078] set_robust_list(0x7f7d8d2b89a0, 24) = 0 [pid 5078] rt_sigprocmask(SIG_SETMASK, [], [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5078] sendfile(6, 7, NULL, 4 [pid 5073] futex(0x7f7d8d3c9428, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 64.014703][ T5078] [ 64.017053][ T5078] ====================================================== [ 64.024058][ T5078] WARNING: possible circular locking dependency detected [ 64.031062][ T5078] 6.9.0-rc7-syzkaller-00012-gdccb07f2914c #0 Not tainted [ 64.038077][ T5078] ------------------------------------------------------ [ 64.045090][ T5078] syz-executor149/5078 is trying to acquire lock: [ 64.051478][ T5078] ffff88802a978888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x53/0x3b0 [ 64.060261][ T5078] [pid 5073] futex(0x7f7d8d3c942c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 64.060261][ T5078] but task is already holding lock: [ 64.067608][ T5078] ffff88802d80b540 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 [ 64.075974][ T5078] [ 64.075974][ T5078] which lock already depends on the new lock. [ 64.075974][ T5078] [ 64.086372][ T5078] [ 64.086372][ T5078] the existing dependency chain (in reverse order) is: [ 64.095374][ T5078] [ 64.095374][ T5078] -> #4 (&p->lock){+.+.}-{3:3}: [ 64.102392][ T5078] lock_acquire+0x1ed/0x550 [ 64.107402][ T5078] __mutex_lock+0x136/0xd70 [ 64.112419][ T5078] seq_read_iter+0xb7/0xd60 [ 64.117437][ T5078] copy_splice_read+0x662/0xb60 [ 64.122803][ T5078] splice_file_to_pipe+0x299/0x500 [ 64.128418][ T5078] do_sendfile+0x515/0xdc0 [ 64.133345][ T5078] __se_sys_sendfile64+0x17c/0x1e0 [ 64.138970][ T5078] do_syscall_64+0xf5/0x240 [ 64.143987][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.150388][ T5078] [ 64.150388][ T5078] -> #3 (&pipe->mutex){+.+.}-{3:3}: [ 64.157776][ T5078] lock_acquire+0x1ed/0x550 [ 64.162793][ T5078] __mutex_lock+0x136/0xd70 [ 64.167827][ T5078] iter_file_splice_write+0x335/0x14e0 [ 64.173811][ T5078] backing_file_splice_write+0x2bc/0x4c0 [ 64.179953][ T5078] ovl_splice_write+0x3cf/0x500 [ 64.185324][ T5078] do_splice+0xd77/0x1880 [ 64.190177][ T5078] __se_sys_splice+0x331/0x4a0 [ 64.195481][ T5078] do_syscall_64+0xf5/0x240 [ 64.200498][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.206935][ T5078] [ 64.206935][ T5078] -> #2 (sb_writers#4){.+.+}-{0:0}: [ 64.214353][ T5078] lock_acquire+0x1ed/0x550 [ 64.219429][ T5078] sb_start_write+0x4d/0x1c0 [ 64.224533][ T5078] mnt_want_write+0x3f/0x90 [ 64.229547][ T5078] ovl_create_object+0x13b/0x370 [ 64.234998][ T5078] path_openat+0x1425/0x3240 [ 64.240097][ T5078] do_filp_open+0x235/0x490 [ 64.245111][ T5078] do_sys_openat2+0x13e/0x1d0 [ 64.250303][ T5078] __x64_sys_open+0x225/0x270 [ 64.255494][ T5078] do_syscall_64+0xf5/0x240 [ 64.260510][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.266929][ T5078] [ 64.266929][ T5078] -> #1 (&ovl_i_mutex_dir_key[depth]){++++}-{3:3}: [ 64.275618][ T5078] lock_acquire+0x1ed/0x550 [ 64.280648][ T5078] down_read+0xb1/0xa40 [ 64.285310][ T5078] lookup_slow+0x45/0x70 [ 64.290058][ T5078] walk_component+0x2e1/0x410 [ 64.295249][ T5078] path_lookupat+0x16f/0x450 [ 64.300351][ T5078] filename_lookup+0x256/0x610 [ 64.305630][ T5078] kern_path+0x35/0x50 [ 64.310214][ T5078] lookup_bdev+0xc5/0x290 [ 64.315049][ T5078] resume_store+0x1a0/0x710 [ 64.320065][ T5078] kernfs_fop_write_iter+0x3a1/0x500 [ 64.325864][ T5078] vfs_write+0xa84/0xcb0 [ 64.330636][ T5078] ksys_write+0x1a0/0x2c0 [ 64.335477][ T5078] do_syscall_64+0xf5/0x240 [ 64.340581][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.346990][ T5078] [ 64.346990][ T5078] -> #0 (&of->mutex){+.+.}-{3:3}: [ 64.354188][ T5078] validate_chain+0x18cb/0x58e0 [ 64.359553][ T5078] __lock_acquire+0x1346/0x1fd0 [ 64.364912][ T5078] lock_acquire+0x1ed/0x550 [ 64.369921][ T5078] __mutex_lock+0x136/0xd70 [ 64.374938][ T5078] kernfs_seq_start+0x53/0x3b0 [ 64.380225][ T5078] traverse+0x14f/0x550 [ 64.384892][ T5078] seq_read_iter+0xc5e/0xd60 [ 64.389995][ T5078] copy_splice_read+0x662/0xb60 [ 64.395367][ T5078] splice_file_to_pipe+0x299/0x500 [ 64.401003][ T5078] do_sendfile+0x515/0xdc0 [ 64.405975][ T5078] __se_sys_sendfile64+0x17c/0x1e0 [ 64.411606][ T5078] do_syscall_64+0xf5/0x240 [ 64.416635][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.423064][ T5078] [ 64.423064][ T5078] other info that might help us debug this: [ 64.423064][ T5078] [ 64.433279][ T5078] Chain exists of: [ 64.433279][ T5078] &of->mutex --> &pipe->mutex --> &p->lock [ 64.433279][ T5078] [ 64.445001][ T5078] Possible unsafe locking scenario: [ 64.445001][ T5078] [ 64.452448][ T5078] CPU0 CPU1 [ 64.457798][ T5078] ---- ---- [ 64.463156][ T5078] lock(&p->lock); [ 64.466956][ T5078] lock(&pipe->mutex); [ 64.473622][ T5078] lock(&p->lock); [ 64.479942][ T5078] lock(&of->mutex); [ 64.483932][ T5078] [ 64.483932][ T5078] *** DEADLOCK *** [ 64.483932][ T5078] [ 64.492062][ T5078] 2 locks held by syz-executor149/5078: [ 64.497597][ T5078] #0: ffff88807de89868 (&pipe->mutex){+.+.}-{3:3}, at: splice_file_to_pipe+0x2e/0x500 [ 64.507240][ T5078] #1: ffff88802d80b540 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 [ 64.516042][ T5078] [ 64.516042][ T5078] stack backtrace: [ 64.521914][ T5078] CPU: 0 PID: 5078 Comm: syz-executor149 Not tainted 6.9.0-rc7-syzkaller-00012-gdccb07f2914c #0 [ 64.532307][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.542365][ T5078] Call Trace: [ 64.545636][ T5078] [ 64.548560][ T5078] dump_stack_lvl+0x241/0x360 [ 64.553250][ T5078] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.558453][ T5078] ? print_circular_bug+0x130/0x1a0 [ 64.563649][ T5078] check_noncircular+0x36a/0x4a0 [ 64.568584][ T5078] ? __pfx_check_noncircular+0x10/0x10 [ 64.574051][ T5078] ? lockdep_lock+0x123/0x2b0 [ 64.578726][ T5078] ? _find_first_zero_bit+0xd4/0x100 [ 64.584022][ T5078] validate_chain+0x18cb/0x58e0 [ 64.588869][ T5078] ? __pfx_validate_chain+0x10/0x10 [ 64.594112][ T5078] ? mark_lock+0x9a/0x350 [ 64.598435][ T5078] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.604407][ T5078] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.610731][ T5078] ? mark_lock+0x9a/0x350 [ 64.615058][ T5078] ? lockdep_hardirqs_on+0x99/0x150 [ 64.620253][ T5078] __lock_acquire+0x1346/0x1fd0 [ 64.625105][ T5078] lock_acquire+0x1ed/0x550 [ 64.629634][ T5078] ? kernfs_seq_start+0x53/0x3b0 [ 64.634590][ T5078] ? __pfx_lock_acquire+0x10/0x10 [ 64.639601][ T5078] ? __pfx___might_resched+0x10/0x10 [ 64.644878][ T5078] __mutex_lock+0x136/0xd70 [ 64.649365][ T5078] ? kernfs_seq_start+0x53/0x3b0 [ 64.654289][ T5078] ? kernfs_seq_start+0x53/0x3b0 [ 64.659233][ T5078] ? __pfx___mutex_lock+0x10/0x10 [ 64.664243][ T5078] ? rcu_is_watching+0x15/0xb0 [ 64.668999][ T5078] ? trace_kmalloc+0x1f/0xd0 [ 64.673583][ T5078] ? __kmalloc_node+0x270/0x4f0 [ 64.678432][ T5078] ? kvmalloc_node+0x72/0x190 [ 64.683106][ T5078] kernfs_seq_start+0x53/0x3b0 [ 64.687858][ T5078] traverse+0x14f/0x550 [ 64.692006][ T5078] seq_read_iter+0xc5e/0xd60 [ 64.696592][ T5078] ? copy_splice_read+0x18d/0xb60 [ 64.701615][ T5078] ? kernfs_fop_read_iter+0x143/0x640 [ 64.706980][ T5078] ? __pfx___mutex_trylock_common+0x10/0x10 [ 64.712883][ T5078] copy_splice_read+0x662/0xb60 [ 64.717731][ T5078] ? __pfx_copy_splice_read+0x10/0x10 [ 64.723096][ T5078] ? __pfx___mutex_lock+0x10/0x10 [ 64.728105][ T5078] ? do_raw_spin_lock+0x14f/0x370 [ 64.733133][ T5078] ? wait_for_space+0x254/0x2e0 [ 64.737972][ T5078] ? __pfx_copy_splice_read+0x10/0x10 [ 64.743333][ T5078] splice_file_to_pipe+0x299/0x500 [ 64.748429][ T5078] do_sendfile+0x515/0xdc0 [ 64.752862][ T5078] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.759177][ T5078] ? __pfx_do_sendfile+0x10/0x10 [ 64.764108][ T5078] ? _raw_spin_unlock_irq+0x2e/0x50 [ 64.769294][ T5078] ? ptrace_notify+0x279/0x380 [ 64.774043][ T5078] __se_sys_sendfile64+0x17c/0x1e0 [ 64.779149][ T5078] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 64.784773][ T5078] ? do_syscall_64+0x102/0x240 [ 64.789536][ T5078] do_syscall_64+0xf5/0x240 [ 64.794027][ T5078] ? clear_bhb_loop+0x35/0x90 [ 64.798694][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.804573][ T5078] RIP: 0033:0x7f7d8d33f8e9 [ 64.808971][ T5078] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 64.828560][ T5078] RSP: 002b:00007f7d8d2b8218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 64.836960][ T5078] RAX: ffffffffffffffda RBX: 00007f7d8d3c9428 RCX: 00007f7d8d33f8e9 [ 64.844917][ T5078] RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 [ 64.852872][ T5078] RBP: 00007f7d8d3c9420 R08: 00007ffdc82d7c57 R09: 0000000000000000 [pid 5073] exit_group(0 [pid 5075] <... futex resumed>) = ? [pid 5073] <... exit_group resumed>) = ? [pid 5075] +++ exited with 0 +++ [pid 5074] <... splice resumed>) = ? [pid 5078] <... sendfile resumed>) = ? [pid 5074] +++ exited with 0 +++ [pid 5078] +++ exited with 0 +++ [pid 5073] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached , child_tidptr=0x5555934bc690) = 5079 [pid 5079] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1000", 4) = 4 [ 64.860835][ T5078] R10: 0000000000000004 R11: 0000000000000246 R12: 00007f7d8d39606c [ 64.868790][ T5078] R13: 0030656c69662f2e R14: 0079616c7265766f R15: 00007f7d8d39603b [ 64.876768][ T5078] [pid 5079] close(3) = 0 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5079] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5080 attached => {parent_tid=[5080]}, 88) = 5080 [pid 5080] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053) = 0 [pid 5080] set_robust_list(0x7f7d8d2fa9a0, 24) = 0 [pid 5080] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] rt_sigprocmask(SIG_SETMASK, [], [pid 5080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... futex resumed>) = 0 [pid 5080] mkdirat(AT_FDCWD, "./file0", 000 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] mkdirat(AT_FDCWD, "./file1", 000) = -1 EEXIST (File exists) [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... futex resumed>) = 0 [pid 5080] mkdirat(AT_FDCWD, "./bus", 000 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... futex resumed>) = 0 [pid 5080] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5080] chdir("./bus" [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... chdir resumed>) = 0 [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5080] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... open resumed>) = 3 [pid 5079] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... futex resumed>) = 0 [pid 5080] <... futex resumed>) = 1 [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5079] <... futex resumed>) = 0 [pid 5080] <... mknod resumed>) = -1 EEXIST (File exists) [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5080] open("./file0", O_RDWR [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... open resumed>) = 4 [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5080] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5080] <... open resumed>) = 5 [pid 5080] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 64.981919][ T5080] overlay: filesystem on ./bus not supported as upperdir [pid 5080] splice(4, NULL, 5, NULL, 3286, 0 [pid 5079] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5079] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5079] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5081 attached [pid 5081] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053) = 0 [pid 5079] <... clone3 resumed> => {parent_tid=[5081]}, 88) = 5081 [pid 5081] set_robust_list(0x7f7d8d2d99a0, 24 [pid 5079] rt_sigprocmask(SIG_SETMASK, [], [pid 5081] <... set_robust_list resumed>) = 0 [pid 5079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5081] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5079] <... futex resumed>) = 0 [pid 5081] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000 [pid 5079] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... open resumed>) = 6 [pid 5081] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5081] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 7 [pid 5081] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5081] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5081] write(7, "0x0000000000000000", 18 [pid 5079] <... futex resumed>) = 0 [pid 5079] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... write resumed>) = 18 [pid 5081] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5081] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... futex resumed>) = 0 [pid 5081] sendfile(6, 7, NULL, 4 [pid 5079] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... sendfile resumed>) = 0 [pid 5081] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [ 65.119394][ T5081] PM: Image not found (code -6) [pid 5081] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] exit_group(0 [pid 5081] <... futex resumed>) = ? [pid 5080] <... splice resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ [pid 5079] <... exit_group resumed>) = ? [pid 5079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached , child_tidptr=0x5555934bc690) = 5084 [pid 5084] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5084] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5085 attached => {parent_tid=[5085]}, 88) = 5085 [pid 5085] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053) = 0 [pid 5084] rt_sigprocmask(SIG_SETMASK, [], [pid 5085] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] rt_sigprocmask(SIG_SETMASK, [], [pid 5084] <... futex resumed>) = 0 [pid 5085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5085] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5085] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] mkdirat(AT_FDCWD, "./file1", 000) = -1 EEXIST (File exists) [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5085] mkdirat(AT_FDCWD, "./bus", 000 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5085] <... futex resumed>) = 1 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5084] <... futex resumed>) = 0 [pid 5085] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5085] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] chdir("./bus" [pid 5084] <... futex resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5085] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5084] <... futex resumed>) = 0 [pid 5085] <... open resumed>) = 3 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5085] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... mknod resumed>) = -1 EEXIST (File exists) [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5085] open("./file0", O_RDWR [pid 5084] <... futex resumed>) = 0 [pid 5085] <... open resumed>) = 4 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... open resumed>) = 5 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] splice(4, NULL, 5, NULL, 3286, 0 [pid 5084] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 65.770849][ T5085] overlay: filesystem on ./bus not supported as upperdir [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5084] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5084] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5084] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5086 attached [pid 5086] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053 [pid 5084] <... clone3 resumed> => {parent_tid=[5086]}, 88) = 5086 [pid 5086] <... rseq resumed>) = 0 [pid 5084] rt_sigprocmask(SIG_SETMASK, [], [pid 5086] set_robust_list(0x7f7d8d2d99a0, 24 [pid 5084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5084] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5084] <... futex resumed>) = 0 [pid 5086] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000 [pid 5084] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5086] <... open resumed>) = 6 [pid 5086] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5086] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5084] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5086] <... openat resumed>) = 7 [pid 5086] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5086] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] write(7, "0x0000000000000000", 18 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5086] <... write resumed>) = 18 [pid 5086] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = 1 [pid 5084] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] sendfile(6, 7, NULL, 4 [pid 5084] <... futex resumed>) = 0 [pid 5086] <... sendfile resumed>) = 0 [pid 5084] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5086] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] <... futex resumed>) = 0 [ 65.943878][ T5086] PM: Image not found (code -6) [pid 5086] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] exit_group(0) = ? [pid 5086] <... futex resumed>) = ? [pid 5086] +++ exited with 0 +++ [pid 5085] <... splice resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555934bc690) = 5089 ./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5089] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5090 attached => {parent_tid=[5090]}, 88) = 5090 [pid 5089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5090] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053) = 0 [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5089] <... futex resumed>) = 0 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5090] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5090] mkdirat(AT_FDCWD, "./file1", 000 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5089] <... futex resumed>) = 0 [pid 5090] mkdirat(AT_FDCWD, "./bus", 000 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = 0 [pid 5090] <... futex resumed>) = 1 [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] chdir("./bus" [pid 5089] <... futex resumed>) = 0 [pid 5090] <... chdir resumed>) = 0 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... open resumed>) = 3 [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5090] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... mknod resumed>) = -1 EEXIST (File exists) [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] open("./file0", O_RDWR [pid 5089] <... futex resumed>) = 0 [pid 5090] <... open resumed>) = 4 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5089] <... futex resumed>) = 0 [pid 5090] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... open resumed>) = 5 [pid 5090] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... futex resumed>) = 0 [ 66.395934][ T5090] overlay: filesystem on ./bus not supported as upperdir [pid 5090] splice(4, NULL, 5, NULL, 3286, 0 [pid 5089] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5089] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5089] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5089] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5091 attached [pid 5091] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053 [pid 5089] <... clone3 resumed> => {parent_tid=[5091]}, 88) = 5091 [pid 5091] <... rseq resumed>) = 0 [pid 5089] rt_sigprocmask(SIG_SETMASK, [], [pid 5091] set_robust_list(0x7f7d8d2d99a0, 24 [pid 5089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] rt_sigprocmask(SIG_SETMASK, [], [pid 5089] <... futex resumed>) = 0 [pid 5091] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5089] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000) = 6 [pid 5091] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] <... futex resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5091] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5089] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... openat resumed>) = 7 [pid 5091] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5091] write(7, "0x0000000000000000", 18 [pid 5089] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... write resumed>) = 18 [pid 5091] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5089] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] sendfile(6, 7, NULL, 4) = 0 [pid 5091] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] <... futex resumed>) = 0 [ 66.575543][ T5091] PM: Image not found (code -6) [pid 5089] exit_group(0 [pid 5091] <... futex resumed>) = ? [pid 5089] <... exit_group resumed>) = ? [pid 5090] <... splice resumed>) = ? [pid 5091] +++ exited with 0 +++ [pid 5090] +++ exited with 0 +++ [pid 5089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached , child_tidptr=0x5555934bc690) = 5094 [pid 5094] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5094] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5095 attached [pid 5095] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053 [pid 5094] <... clone3 resumed> => {parent_tid=[5095]}, 88) = 5095 [pid 5095] <... rseq resumed>) = 0 [pid 5095] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5094] rt_sigprocmask(SIG_SETMASK, [], [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] rt_sigprocmask(SIG_SETMASK, [], [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5094] <... futex resumed>) = 0 [pid 5095] mkdirat(AT_FDCWD, "./file0", 000 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] mkdirat(AT_FDCWD, "./file1", 000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5095] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... futex resumed>) = 0 [pid 5095] mkdirat(AT_FDCWD, "./bus", 000 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5095] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] chdir("./bus" [pid 5094] <... futex resumed>) = 0 [pid 5095] <... chdir resumed>) = 0 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5095] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... open resumed>) = 3 [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5095] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] mknod("./file0", S_IFIFO|S_ISGID|040) = -1 EEXIST (File exists) [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] open("./file0", O_RDWR [pid 5094] <... futex resumed>) = 0 [pid 5095] <... open resumed>) = 4 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... open resumed>) = 5 [pid 5095] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5095] <... futex resumed>) = 1 [pid 5094] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] splice(4, NULL, 5, NULL, 3286, 0 [pid 5094] <... futex resumed>) = 0 [ 66.943468][ T5095] overlay: filesystem on ./bus not supported as upperdir [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5094] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5096 attached => {parent_tid=[5096]}, 88) = 5096 [pid 5096] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053 [pid 5094] rt_sigprocmask(SIG_SETMASK, [], [pid 5096] <... rseq resumed>) = 0 [pid 5096] set_robust_list(0x7f7d8d2d99a0, 24) = 0 [pid 5096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5096] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5094] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5096] <... futex resumed>) = 0 [pid 5096] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000 [pid 5094] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... open resumed>) = 6 [pid 5096] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5096] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... openat resumed>) = 7 [pid 5096] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5096] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... futex resumed>) = 0 [pid 5096] write(7, "0x0000000000000000", 18 [pid 5094] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... write resumed>) = 18 [pid 5096] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5096] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... futex resumed>) = 0 [pid 5096] sendfile(6, 7, NULL, 4) = 0 [pid 5094] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] <... futex resumed>) = 0 [ 67.099730][ T5096] PM: Image not found (code -6) [pid 5096] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] exit_group(0 [pid 5096] <... futex resumed>) = ? [pid 5095] <... splice resumed>) = ? [pid 5094] <... exit_group resumed>) = ? [pid 5095] +++ exited with 0 +++ [pid 5096] +++ exited with 0 +++ [pid 5094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x5555934bc6a0, 24 [pid 5072] <... clone resumed>, child_tidptr=0x5555934bc690) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5099] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5100 attached [pid 5100] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053 [pid 5099] <... clone3 resumed> => {parent_tid=[5100]}, 88) = 5100 [pid 5100] <... rseq resumed>) = 0 [pid 5099] rt_sigprocmask(SIG_SETMASK, [], [pid 5100] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] rt_sigprocmask(SIG_SETMASK, [], [pid 5099] <... futex resumed>) = 0 [pid 5100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] <... futex resumed>) = 0 [pid 5100] mkdirat(AT_FDCWD, "./file1", 000 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5100] <... futex resumed>) = 1 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] mkdirat(AT_FDCWD, "./bus", 000) = -1 EEXIST (File exists) [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 1 [pid 5100] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] <... futex resumed>) = 0 [pid 5100] chdir("./bus" [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... chdir resumed>) = 0 [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... open resumed>) = 3 [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... mknod resumed>) = -1 EEXIST (File exists) [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] <... futex resumed>) = 0 [pid 5100] open("./file0", O_RDWR [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... open resumed>) = 4 [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5100] <... futex resumed>) = 1 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5099] <... futex resumed>) = 0 [pid 5100] <... open resumed>) = 5 [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] splice(4, NULL, 5, NULL, 3286, 0 [ 67.384741][ T5100] overlay: filesystem on ./bus not supported as upperdir [pid 5099] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5099] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5099] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5101 attached [pid 5101] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053 [pid 5099] <... clone3 resumed> => {parent_tid=[5101]}, 88) = 5101 [pid 5101] <... rseq resumed>) = 0 [pid 5101] set_robust_list(0x7f7d8d2d99a0, 24) = 0 [pid 5101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5101] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5099] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 1 [pid 5101] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000 [pid 5099] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] <... open resumed>) = 6 [pid 5101] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5101] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5099] <... futex resumed>) = 0 [pid 5101] <... openat resumed>) = 7 [pid 5099] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5101] write(7, "0x0000000000000000", 18 [pid 5099] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] <... write resumed>) = 18 [pid 5101] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5101] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] sendfile(6, 7, NULL, 4 [pid 5099] <... futex resumed>) = 0 [pid 5101] <... sendfile resumed>) = 0 [pid 5099] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [ 67.546090][ T5101] PM: Image not found (code -6) [pid 5101] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] exit_group(0 [pid 5101] <... futex resumed>) = ? [pid 5100] <... splice resumed>) = ? [pid 5099] <... exit_group resumed>) = ? [pid 5101] +++ exited with 0 +++ [pid 5100] +++ exited with 0 +++ [pid 5099] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x5555934bc6a0, 24 [pid 5072] <... clone resumed>, child_tidptr=0x5555934bc690) = 5104 [pid 5104] <... set_robust_list resumed>) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5104] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5105 attached [pid 5105] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053) = 0 [pid 5105] set_robust_list(0x7f7d8d2fa9a0, 24) = 0 [pid 5105] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] <... clone3 resumed> => {parent_tid=[5105]}, 88) = 5105 [pid 5105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] rt_sigprocmask(SIG_SETMASK, [], [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 1 [pid 5105] mkdirat(AT_FDCWD, "./file0", 000 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] mkdirat(AT_FDCWD, "./file1", 000 [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] <... futex resumed>) = 0 [pid 5105] mkdirat(AT_FDCWD, "./bus", 000 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on," [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] <... futex resumed>) = 0 [pid 5105] chdir("./bus") = 0 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 1 [pid 5105] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... open resumed>) = 3 [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] <... futex resumed>) = 0 [pid 5105] mknod("./file0", S_IFIFO|S_ISGID|040 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... mknod resumed>) = -1 EEXIST (File exists) [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] open("./file0", O_RDWR [pid 5104] <... futex resumed>) = 0 [pid 5105] <... open resumed>) = 4 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5105] open("./bus", O_RDWR|O_TRUNC|O_NOATIME|FASYNC [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] <... open resumed>) = 5 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 67.834133][ T5105] overlay: filesystem on ./bus not supported as upperdir [pid 5105] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 1 [pid 5105] splice(4, NULL, 5, NULL, 3286, 0 [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5104] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5104] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2b9000 [pid 5104] mprotect(0x7f7d8d2ba000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2d9990, parent_tid=0x7f7d8d2d9990, exit_signal=0, stack=0x7f7d8d2b9000, stack_size=0x20300, tls=0x7f7d8d2d96c0}./strace-static-x86_64: Process 5106 attached [pid 5106] rseq(0x7f7d8d2d9fe0, 0x20, 0, 0x53053053 [pid 5104] <... clone3 resumed> => {parent_tid=[5106]}, 88) = 5106 [pid 5106] <... rseq resumed>) = 0 [pid 5106] set_robust_list(0x7f7d8d2d99a0, 24) = 0 [pid 5106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5106] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5104] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = 0 [pid 5104] <... futex resumed>) = 1 [pid 5104] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] open("./file0", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|0x3c, 000) = 6 [pid 5106] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5104] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] openat(AT_FDCWD, "/sys/power/resume", O_RDWR|O_EXCL|O_TRUNC|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5104] <... futex resumed>) = 0 [pid 5106] <... openat resumed>) = 7 [pid 5104] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5104] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] write(7, "0x0000000000000000", 18 [pid 5104] <... futex resumed>) = 0 [pid 5104] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... write resumed>) = 18 [pid 5106] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [pid 5106] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f7d8d3c9418, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] <... futex resumed>) = 0 [pid 5106] sendfile(6, 7, NULL, 4 [pid 5104] futex(0x7f7d8d3c941c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... sendfile resumed>) = 0 [pid 5106] futex(0x7f7d8d3c941c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5104] <... futex resumed>) = 0 [ 68.032749][ T5106] PM: Image not found (code -6) [pid 5106] futex(0x7f7d8d3c9418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] exit_group(0 [pid 5106] <... futex resumed>) = ? [pid 5105] <... splice resumed>) = ? [pid 5104] <... exit_group resumed>) = ? [pid 5106] +++ exited with 0 +++ [pid 5105] +++ exited with 0 +++ [pid 5104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached , child_tidptr=0x5555934bc690) = 5109 [pid 5109] set_robust_list(0x5555934bc6a0, 24) = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 0 [pid 5109] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] rt_sigaction(SIGRT_1, {sa_handler=0x7f7d8d365820, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7d8d356ea0}, NULL, 8) = 0 [pid 5109] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7d8d2da000 [pid 5109] mprotect(0x7f7d8d2db000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5109] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5109] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7d8d2fa990, parent_tid=0x7f7d8d2fa990, exit_signal=0, stack=0x7f7d8d2da000, stack_size=0x20300, tls=0x7f7d8d2fa6c0}./strace-static-x86_64: Process 5110 attached [pid 5110] rseq(0x7f7d8d2fafe0, 0x20, 0, 0x53053053 [pid 5109] <... clone3 resumed> => {parent_tid=[5110]}, 88) = 5110 [pid 5110] <... rseq resumed>) = 0 [pid 5109] rt_sigprocmask(SIG_SETMASK, [], [pid 5110] set_robust_list(0x7f7d8d2fa9a0, 24 [pid 5109] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5109] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5110] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] futex(0x7f7d8d3c940c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5110] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 5110] futex(0x7f7d8d3c940c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5110] futex(0x7f7d8d3c9408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7f7d8d3c9408, FUTEX_WAKE_PRIVATE, 1000000