./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2769083713 <...> DUID 00:04:76:8b:f6:84:a4:3b:36:39:6c:68:e7:10:38:dd:b7:2c forked to background, child pid 3186 [ 26.685816][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.695711][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.6' (ECDSA) to the list of known hosts. execve("./syz-executor2769083713", ["./syz-executor2769083713"], 0x7ffea8c61560 /* 10 vars */) = 0 brk(NULL) = 0x5555571cf000 brk(0x5555571cfc40) = 0x5555571cfc40 arch_prctl(ARCH_SET_FS, 0x5555571cf300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2769083713", 4096) = 28 brk(0x5555571f0c40) = 0x5555571f0c40 brk(0x5555571f1000) = 0x5555571f1000 mprotect(0x7f6067cd6000, 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 3616 attached , child_tidptr=0x5555571cf5d0) = 3616 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1000", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3616] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3616] mknodat(AT_FDCWD, "./file0", 000) = 0 [pid 3616] mkdir("./bus", 000) = 0 [pid 3616] mkdir("./file1", 000) = 0 [pid 3616] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = 0 [pid 3616] chdir("./bus") = 0 syzkaller login: [ 51.035169][ T3616] [ 51.037528][ T3616] ====================================================== [ 51.044527][ T3616] WARNING: possible circular locking dependency detected [ 51.051611][ T3616] 6.1.0-rc3-syzkaller-00152-gf2f32f8af2b0 #0 Not tainted [ 51.058604][ T3616] ------------------------------------------------------ [ 51.065611][ T3616] syz-executor276/3616 is trying to acquire lock: [ 51.072002][ T3616] ffff88814bdf2460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 [ 51.080695][ T3616] [ 51.080695][ T3616] but task is already holding lock: [ 51.088042][ T3616] ffff88801e13e1a0 (&iint->mutex){+.+.}-{3:3}, at: process_measurement+0x7ab/0x1bd0 [ 51.097436][ T3616] [ 51.097436][ T3616] which lock already depends on the new lock. [ 51.097436][ T3616] [ 51.107833][ T3616] [ 51.107833][ T3616] the existing dependency chain (in reverse order) is: [ 51.116826][ T3616] [ 51.116826][ T3616] -> #1 (&iint->mutex){+.+.}-{3:3}: [ 51.124188][ T3616] lock_acquire+0x182/0x3c0 [ 51.129246][ T3616] __mutex_lock_common+0x1bd/0x26e0 [ 51.134968][ T3616] mutex_lock_nested+0x17/0x20 [ 51.140242][ T3616] process_measurement+0x7ab/0x1bd0 [ 51.145965][ T3616] ima_file_check+0xd8/0x130 [ 51.151066][ T3616] path_openat+0x2642/0x2df0 [ 51.156159][ T3616] do_filp_open+0x264/0x4f0 [ 51.161163][ T3616] do_sys_openat2+0x124/0x4e0 [ 51.166344][ T3616] __x64_sys_openat+0x243/0x290 [ 51.171705][ T3616] do_syscall_64+0x3d/0xb0 [ 51.176636][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.183053][ T3616] [ 51.183053][ T3616] -> #0 (sb_writers#4){.+.+}-{0:0}: [ 51.190441][ T3616] validate_chain+0x1898/0x6ae0 [ 51.195817][ T3616] __lock_acquire+0x1292/0x1f60 [ 51.201172][ T3616] lock_acquire+0x182/0x3c0 [ 51.206181][ T3616] sb_start_write+0x4d/0x1a0 [ 51.211277][ T3616] mnt_want_write+0x3b/0x80 [ 51.216283][ T3616] ovl_maybe_copy_up+0x124/0x190 [ 51.221727][ T3616] ovl_open+0xf3/0x290 [ 51.226302][ T3616] do_dentry_open+0x85f/0x11b0 [ 51.231573][ T3616] dentry_open+0xc1/0x120 [ 51.236411][ T3616] ima_calc_file_hash+0x15b/0x1ca0 [ 51.242031][ T3616] ima_collect_measurement+0x444/0x8c0 [ 51.247999][ T3616] process_measurement+0xf4b/0x1bd0 [ 51.253713][ T3616] ima_file_check+0xd8/0x130 [ 51.258826][ T3616] path_openat+0x2642/0x2df0 [ 51.263921][ T3616] do_filp_open+0x264/0x4f0 [ 51.268930][ T3616] do_sys_openat2+0x124/0x4e0 [ 51.274115][ T3616] __x64_sys_open+0x221/0x270 [ 51.279299][ T3616] do_syscall_64+0x3d/0xb0 [ 51.284481][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.290881][ T3616] [ 51.290881][ T3616] other info that might help us debug this: [ 51.290881][ T3616] [ 51.301095][ T3616] Possible unsafe locking scenario: [ 51.301095][ T3616] [ 51.308526][ T3616] CPU0 CPU1 [ 51.313871][ T3616] ---- ---- [ 51.319240][ T3616] lock(&iint->mutex); [ 51.323383][ T3616] lock(sb_writers#4); [ 51.330045][ T3616] lock(&iint->mutex); [ 51.336704][ T3616] lock(sb_writers#4); [ 51.340849][ T3616] [ 51.340849][ T3616] *** DEADLOCK *** [ 51.340849][ T3616] [ 51.348972][ T3616] 1 lock held by syz-executor276/3616: [ 51.354411][ T3616] #0: ffff88801e13e1a0 (&iint->mutex){+.+.}-{3:3}, at: process_measurement+0x7ab/0x1bd0 [ 51.364222][ T3616] [ 51.364222][ T3616] stack backtrace: [ 51.370099][ T3616] CPU: 0 PID: 3616 Comm: syz-executor276 Not tainted 6.1.0-rc3-syzkaller-00152-gf2f32f8af2b0 #0 [ 51.380666][ T3616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 51.390703][ T3616] Call Trace: [ 51.393967][ T3616] [ 51.396885][ T3616] dump_stack_lvl+0x1b1/0x28e [ 51.401559][ T3616] ? nf_tcp_handle_invalid+0x62e/0x62e [ 51.407008][ T3616] ? print_circular_bug+0x13e/0x1c0 [ 51.412206][ T3616] check_noncircular+0x2cc/0x390 [ 51.417141][ T3616] ? add_chain_block+0x850/0x850 [ 51.422106][ T3616] ? lockdep_lock+0x102/0x290 [ 51.426782][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.432137][ T3616] ? _find_first_zero_bit+0xe8/0x110 [ 51.437423][ T3616] validate_chain+0x1898/0x6ae0 [ 51.442267][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.447723][ T3616] ? validate_chain+0x1478/0x6ae0 [ 51.452745][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.458104][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.463472][ T3616] ? stack_trace_save+0x104/0x1e0 [ 51.468510][ T3616] ? stack_trace_save+0x1e0/0x1e0 [ 51.473522][ T3616] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.479141][ T3616] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.485119][ T3616] ? rcu_lock_release+0x5/0x20 [ 51.489899][ T3616] ? trace_lock_release+0x95/0x220 [ 51.495003][ T3616] ? rcu_lock_release+0x5/0x20 [ 51.499768][ T3616] ? lock_release+0x81/0x820 [ 51.504344][ T3616] ? validate_chain+0x177/0x6ae0 [ 51.509265][ T3616] ? __lock_acquire+0x1f60/0x1f60 [ 51.514274][ T3616] ? deref_stack_reg+0x17a/0x210 [ 51.519199][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.524559][ T3616] ? is_bpf_text_address+0x253/0x270 [ 51.529845][ T3616] ? stack_trace_save+0x1e0/0x1e0 [ 51.534857][ T3616] ? kernel_text_address+0x9e/0xd0 [ 51.539955][ T3616] ? __kernel_text_address+0x9/0x40 [ 51.545220][ T3616] ? unwind_get_return_address+0x48/0x80 [ 51.550844][ T3616] ? arch_stack_walk+0x98/0xe0 [ 51.555695][ T3616] ? validate_chain+0x177/0x6ae0 [ 51.560643][ T3616] ? check_noncircular+0x1aa/0x390 [ 51.565759][ T3616] ? lockdep_unlock+0x144/0x2e0 [ 51.570599][ T3616] ? lockdep_lock+0x290/0x290 [ 51.575269][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.580624][ T3616] ? validate_chain+0x1478/0x6ae0 [ 51.585667][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.591031][ T3616] ? validate_chain+0x177/0x6ae0 [ 51.595956][ T3616] ? validate_chain+0x177/0x6ae0 [ 51.600881][ T3616] ? reacquire_held_locks+0x650/0x650 [ 51.606249][ T3616] ? lockdep_unlock+0x144/0x2e0 [ 51.611086][ T3616] ? stack_trace_save+0x1e0/0x1e0 [ 51.616097][ T3616] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.621736][ T3616] ? stack_trace_save+0x1e0/0x1e0 [ 51.626750][ T3616] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.632379][ T3616] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.638376][ T3616] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.643994][ T3616] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.649964][ T3616] ? __stack_depot_save+0x41c/0x4a0 [ 51.655151][ T3616] ? trace_lock_release+0x95/0x220 [ 51.660249][ T3616] ? mark_lock+0x9a/0x350 [ 51.664573][ T3616] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 51.670554][ T3616] ? print_irqtrace_events+0x220/0x220 [ 51.676022][ T3616] ? do_raw_spin_unlock+0x134/0x8a0 [ 51.681210][ T3616] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 51.687088][ T3616] ? lockdep_hardirqs_on+0x8d/0x130 [ 51.692274][ T3616] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 51.698160][ T3616] ? _raw_spin_unlock+0x40/0x40 [ 51.703010][ T3616] ? stack_trace_save+0x104/0x1e0 [ 51.708041][ T3616] ? stack_trace_snprint+0xf0/0xf0 [ 51.713150][ T3616] ? __stack_depot_save+0x41c/0x4a0 [ 51.718435][ T3616] ? __kmem_cache_free+0x71/0x110 [ 51.723464][ T3616] ? kasan_set_track+0x52/0x60 [ 51.728218][ T3616] ? kasan_set_track+0x3d/0x60 [ 51.732974][ T3616] ? kasan_save_free_info+0x27/0x40 [ 51.738176][ T3616] ? ____kasan_slab_free+0xd6/0x120 [ 51.743374][ T3616] ? slab_free_freelist_hook+0x12e/0x1a0 [ 51.749005][ T3616] ? __kmem_cache_free+0x71/0x110 [ 51.754022][ T3616] ? tomoyo_check_open_permission+0x343/0x460 [ 51.760076][ T3616] ? security_file_open+0x50/0x560 [ 51.765169][ T3616] ? do_dentry_open+0x306/0x11b0 [ 51.770094][ T3616] ? dentry_open+0xc1/0x120 [ 51.774598][ T3616] ? ima_calc_file_hash+0x15b/0x1ca0 [ 51.779879][ T3616] ? ima_collect_measurement+0x444/0x8c0 [ 51.785511][ T3616] ? process_measurement+0xf4b/0x1bd0 [ 51.790890][ T3616] ? ima_file_check+0xd8/0x130 [ 51.795645][ T3616] ? path_openat+0x2642/0x2df0 [ 51.800405][ T3616] ? do_filp_open+0x264/0x4f0 [ 51.805116][ T3616] ? do_sys_openat2+0x124/0x4e0 [ 51.809977][ T3616] ? __x64_sys_open+0x221/0x270 [ 51.814822][ T3616] ? do_syscall_64+0x3d/0xb0 [ 51.819454][ T3616] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.825520][ T3616] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.831144][ T3616] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.837116][ T3616] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 51.843089][ T3616] ? rcu_lock_release+0x5/0x20 [ 51.847844][ T3616] ? mark_lock+0x9a/0x350 [ 51.852160][ T3616] __lock_acquire+0x1292/0x1f60 [ 51.857006][ T3616] lock_acquire+0x182/0x3c0 [ 51.861497][ T3616] ? mnt_want_write+0x3b/0x80 [ 51.866175][ T3616] ? read_lock_is_recursive+0x10/0x10 [ 51.871552][ T3616] ? tomoyo_check_path_number_acl+0x270/0x270 [ 51.877606][ T3616] ? __might_sleep+0xc0/0xc0 [ 51.882188][ T3616] ? aa_get_newest_label+0xf4/0x640 [ 51.887390][ T3616] ? apparmor_task_kill+0x540/0x540 [ 51.892602][ T3616] sb_start_write+0x4d/0x1a0 [ 51.897186][ T3616] ? mnt_want_write+0x3b/0x80 [ 51.901858][ T3616] mnt_want_write+0x3b/0x80 [ 51.906359][ T3616] ovl_maybe_copy_up+0x124/0x190 [ 51.911297][ T3616] ovl_open+0xf3/0x290 [ 51.915357][ T3616] ? ovl_mmap+0x430/0x430 [ 51.919678][ T3616] ? tomoyo_file_open+0xe6/0x170 [ 51.924602][ T3616] ? security_file_open+0x3ff/0x560 [ 51.929790][ T3616] ? ovl_mmap+0x430/0x430 [ 51.934116][ T3616] do_dentry_open+0x85f/0x11b0 [ 51.938874][ T3616] dentry_open+0xc1/0x120 [ 51.943194][ T3616] ima_calc_file_hash+0x15b/0x1ca0 [ 51.948297][ T3616] ? ext4_xattr_get+0x479/0x710 [ 51.953140][ T3616] ? ext4_xattr_get+0x479/0x710 [ 51.957984][ T3616] ? __up_read+0x251/0x690 [ 51.962518][ T3616] ? ima_alloc_tfm+0x330/0x330 [ 51.967330][ T3616] ? up_read+0x20/0x20 [ 51.971410][ T3616] ? __down_read_common+0x156/0x2a0 [ 51.976596][ T3616] ? ext4_xattr_get+0x479/0x710 [ 51.981439][ T3616] ? ext4_xattr_inode_get+0x930/0x930 [ 51.986975][ T3616] ? cap_inode_killpriv+0x40/0x40 [ 51.991990][ T3616] ? ext4_initxattrs+0x110/0x110 [ 51.996934][ T3616] ? __vfs_getxattr+0x3de/0x410 [ 52.001778][ T3616] ? vfs_getxattr+0x2e2/0x360 [ 52.006443][ T3616] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.012410][ T3616] ? __vfs_getxattr+0x410/0x410 [ 52.017252][ T3616] ima_collect_measurement+0x444/0x8c0 [ 52.022703][ T3616] ? ima_get_action+0xa0/0xa0 [ 52.027377][ T3616] ? ovl_own_xattr_set+0x10/0x10 [ 52.032326][ T3616] process_measurement+0xf4b/0x1bd0 [ 52.037537][ T3616] ? ima_file_mmap+0x150/0x150 [ 52.042307][ T3616] ? bpf_lsm_file_open+0x5/0x10 [ 52.047157][ T3616] ? inode_to_bdi+0x65/0xd0 [ 52.051651][ T3616] ? file_ra_state_init+0x38/0xb0 [ 52.056684][ T3616] ? do_dentry_open+0xcad/0x11b0 [ 52.061637][ T3616] ? revert_creds+0x16d/0x260 [ 52.066332][ T3616] ? ovl_open_realfile+0x1fa/0x330 [ 52.071607][ T3616] ? ovl_open+0x154/0x290 [ 52.075929][ T3616] ima_file_check+0xd8/0x130 [ 52.080507][ T3616] ? do_dentry_open+0xcad/0x11b0 [ 52.085429][ T3616] ? ima_bprm_check+0x270/0x270 [ 52.090280][ T3616] path_openat+0x2642/0x2df0 [ 52.094871][ T3616] ? do_filp_open+0x4f0/0x4f0 [ 52.099633][ T3616] do_filp_open+0x264/0x4f0 [ 52.104130][ T3616] ? vfs_tmpfile+0x450/0x450 [ 52.108808][ T3616] ? do_raw_spin_unlock+0x134/0x8a0 [ 52.114015][ T3616] ? _raw_spin_unlock+0x24/0x40 [ 52.118850][ T3616] ? alloc_fd+0x5a7/0x640 [ 52.123169][ T3616] do_sys_openat2+0x124/0x4e0 [ 52.127832][ T3616] ? print_irqtrace_events+0x220/0x220 [ 52.133274][ T3616] ? ptrace_stop+0x74d/0x970 [ 52.137856][ T3616] ? do_sys_open+0x220/0x220 [ 52.142434][ T3616] ? lockdep_hardirqs_on+0x8d/0x130 [ 52.147622][ T3616] ? _raw_spin_unlock_irq+0x2a/0x40 [ 52.152825][ T3616] ? ptrace_notify+0x245/0x340 [ 52.157579][ T3616] __x64_sys_open+0x221/0x270 [ 52.162248][ T3616] ? do_sys_openat2+0x4e0/0x4e0 [ 52.167092][ T3616] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 52.173075][ T3616] ? syscall_enter_from_user_mode+0x86/0x1d0 [ 52.179045][ T3616] do_syscall_64+0x3d/0xb0 [ 52.183454][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.189348][ T3616] RIP: 0033:0x7f6067c69e29 [ 52.193759][ T3616] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 52.213351][ T3616] RSP: 002b:00007ffcfd5e2da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 52.221749][ T3616] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f6067c69e29 [ 52.229708][ T3616] RDX: 0000000000000000 RSI: 000000000000007f RDI: 0000000020000180 [pid 3616] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3616] exit_group(0) = ? [pid 3616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3616, si_uid=0, si_status=0, si_utime=0, si_stime=125} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3617 ./strace-static-x86_64: Process 3617 attached [pid 3617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] write(3, "1000", 4) = 4 [pid 3617] close(3) = 0 [pid 3617] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3617] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3617] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3617] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3617] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.237673][ T3616] RBP: 0000000020000040 R08: 00007ffcfd5e2f48 R09: 00007ffcfd5e2f48 [ 52.245640][ T3616] R10: 00007ffcfd5e2f48 R11: 0000000000000246 R12: 00007f6067c2d6b0 [ 52.253597][ T3616] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 52.261560][ T3616] [ 52.275301][ T3616] syz-executor276 (3616) used greatest stack depth: 16088 bytes left [pid 3617] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3617] chdir("./bus") = 0 [pid 3617] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3617] exit_group(0) = ? [pid 3617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3617, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3618 attached , child_tidptr=0x5555571cf5d0) = 3618 [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] setpgid(0, 0) = 0 [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3618] write(3, "1000", 4) = 4 [pid 3618] close(3) = 0 [pid 3618] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3618] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3618] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3618] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3618] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3618] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3618] chdir("./bus") = 0 [pid 3618] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3618] exit_group(0) = ? [pid 3618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3619 ./strace-static-x86_64: Process 3619 attached [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] setpgid(0, 0) = 0 [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] write(3, "1000", 4) = 4 [pid 3619] close(3) = 0 [pid 3619] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3619] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3619] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3619] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3619] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3619] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3619] chdir("./bus") = 0 [pid 3619] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3619] exit_group(0) = ? [pid 3619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3620 ./strace-static-x86_64: Process 3620 attached [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] setpgid(0, 0) = 0 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] write(3, "1000", 4) = 4 [pid 3620] close(3) = 0 [pid 3620] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3620] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3620] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3620] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3620] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.284674][ T3617] overlayfs: filesystem on './bus' not supported as upperdir [ 52.303304][ T3618] overlayfs: filesystem on './bus' not supported as upperdir [ 52.319850][ T3619] overlayfs: filesystem on './bus' not supported as upperdir [pid 3620] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3620] chdir("./bus") = 0 [pid 3620] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3620] exit_group(0) = ? [pid 3620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3621 ./strace-static-x86_64: Process 3621 attached [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3621] setpgid(0, 0) = 0 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3621] write(3, "1000", 4) = 4 [pid 3621] close(3) = 0 [pid 3621] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3621] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3621] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3621] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3621] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3621] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3621] chdir("./bus") = 0 [pid 3621] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3621] exit_group(0) = ? [pid 3621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3622 attached , child_tidptr=0x5555571cf5d0) = 3622 [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3622] setpgid(0, 0) = 0 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3622] write(3, "1000", 4) = 4 [pid 3622] close(3) = 0 [pid 3622] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3622] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3622] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3622] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3622] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3622] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3622] chdir("./bus") = 0 [pid 3622] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3622] exit_group(0) = ? [pid 3622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3623 ./strace-static-x86_64: Process 3623 attached [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3623] setpgid(0, 0) = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3623] write(3, "1000", 4) = 4 [pid 3623] close(3) = 0 [pid 3623] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3623] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3623] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3623] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3623] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.336323][ T3620] overlayfs: filesystem on './bus' not supported as upperdir [ 52.353018][ T3621] overlayfs: filesystem on './bus' not supported as upperdir [ 52.369178][ T3622] overlayfs: filesystem on './bus' not supported as upperdir [pid 3623] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3623] chdir("./bus") = 0 [pid 3623] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3623] exit_group(0) = ? [pid 3623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3624 ./strace-static-x86_64: Process 3624 attached [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3624] setpgid(0, 0) = 0 [pid 3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3624] write(3, "1000", 4) = 4 [pid 3624] close(3) = 0 [pid 3624] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3624] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3624] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3624] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3624] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3624] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3624] chdir("./bus") = 0 [pid 3624] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3624] exit_group(0) = ? [pid 3624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3625 ./strace-static-x86_64: Process 3625 attached [pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3625] setpgid(0, 0) = 0 [pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3625] write(3, "1000", 4) = 4 [pid 3625] close(3) = 0 [pid 3625] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3625] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3625] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3625] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3625] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3625] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3625] chdir("./bus") = 0 [pid 3625] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3625] exit_group(0) = ? [ 52.400608][ T3623] overlayfs: filesystem on './bus' not supported as upperdir [ 52.416921][ T3624] overlayfs: filesystem on './bus' not supported as upperdir [ 52.434799][ T3625] overlayfs: filesystem on './bus' not supported as upperdir [pid 3625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3626 attached , child_tidptr=0x5555571cf5d0) = 3626 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3626] setpgid(0, 0) = 0 [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3626] write(3, "1000", 4) = 4 [pid 3626] close(3) = 0 [pid 3626] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3626] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3626] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3626] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3626] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3626] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3626] chdir("./bus") = 0 [pid 3626] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3626] exit_group(0) = ? [pid 3626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3627 ./strace-static-x86_64: Process 3627 attached [pid 3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3627] setpgid(0, 0) = 0 [pid 3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3627] write(3, "1000", 4) = 4 [pid 3627] close(3) = 0 [pid 3627] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3627] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3627] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3627] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3627] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3627] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3627] chdir("./bus") = 0 [pid 3627] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3627] exit_group(0) = ? [pid 3627] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3628 ./strace-static-x86_64: Process 3628 attached [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3628] setpgid(0, 0) = 0 [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3628] write(3, "1000", 4) = 4 [pid 3628] close(3) = 0 [pid 3628] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3628] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3628] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3628] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3628] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.453069][ T3626] overlayfs: filesystem on './bus' not supported as upperdir [ 52.468478][ T3627] overlayfs: filesystem on './bus' not supported as upperdir [pid 3628] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3628] chdir("./bus") = 0 [pid 3628] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3628] exit_group(0) = ? [pid 3628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3629 ./strace-static-x86_64: Process 3629 attached [pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3629] setpgid(0, 0) = 0 [pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3629] write(3, "1000", 4) = 4 [pid 3629] close(3) = 0 [pid 3629] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3629] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3629] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3629] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3629] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3629] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3629] chdir("./bus") = 0 [pid 3629] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3629] exit_group(0) = ? [pid 3629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3630 ./strace-static-x86_64: Process 3630 attached [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3630] setpgid(0, 0) = 0 [pid 3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1000", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3630] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3630] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3630] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3630] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3630] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3630] chdir("./bus") = 0 [pid 3630] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3630] exit_group(0) = ? [pid 3630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3631 ./strace-static-x86_64: Process 3631 attached [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3631] setpgid(0, 0) = 0 [pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3631] write(3, "1000", 4) = 4 [pid 3631] close(3) = 0 [pid 3631] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3631] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3631] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3631] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3631] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.493517][ T3628] overlayfs: filesystem on './bus' not supported as upperdir [ 52.510331][ T3629] overlayfs: filesystem on './bus' not supported as upperdir [ 52.527027][ T3630] overlayfs: filesystem on './bus' not supported as upperdir [pid 3631] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3631] chdir("./bus") = 0 [pid 3631] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3631] exit_group(0) = ? [pid 3631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3632 attached , child_tidptr=0x5555571cf5d0) = 3632 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3632] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3632] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3632] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3632] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3632] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3632] chdir("./bus") = 0 [pid 3632] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3632] exit_group(0) = ? [pid 3632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3633 ./strace-static-x86_64: Process 3633 attached [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3633] setpgid(0, 0) = 0 [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3633] write(3, "1000", 4) = 4 [pid 3633] close(3) = 0 [pid 3633] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3633] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3633] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3633] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3633] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3633] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3633] chdir("./bus") = 0 [pid 3633] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3633] exit_group(0) = ? [pid 3633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3634 ./strace-static-x86_64: Process 3634 attached [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3634] setpgid(0, 0) = 0 [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3634] write(3, "1000", 4) = 4 [pid 3634] close(3) = 0 [pid 3634] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3634] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3634] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3634] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3634] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.545002][ T3631] overlayfs: filesystem on './bus' not supported as upperdir [ 52.562780][ T3632] overlayfs: filesystem on './bus' not supported as upperdir [ 52.580417][ T3633] overlayfs: filesystem on './bus' not supported as upperdir [pid 3634] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3634] chdir("./bus") = 0 [pid 3634] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3634] exit_group(0) = ? [pid 3634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3635 ./strace-static-x86_64: Process 3635 attached [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setpgid(0, 0) = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1000", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3635] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3635] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3635] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3635] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3635] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3635] chdir("./bus") = 0 [pid 3635] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3635] exit_group(0) = ? [pid 3635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3636 ./strace-static-x86_64: Process 3636 attached [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3636] setpgid(0, 0) = 0 [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3636] write(3, "1000", 4) = 4 [pid 3636] close(3) = 0 [pid 3636] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3636] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3636] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3636] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3636] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3636] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3636] chdir("./bus") = 0 [pid 3636] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3636] exit_group(0) = ? [pid 3636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3637 ./strace-static-x86_64: Process 3637 attached [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3637] setpgid(0, 0) = 0 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3637] write(3, "1000", 4) = 4 [pid 3637] close(3) = 0 [pid 3637] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3637] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3637] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3637] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3637] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.596901][ T3634] overlayfs: filesystem on './bus' not supported as upperdir [ 52.617098][ T3635] overlayfs: filesystem on './bus' not supported as upperdir [ 52.633357][ T3636] overlayfs: filesystem on './bus' not supported as upperdir [pid 3637] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3637] chdir("./bus") = 0 [pid 3637] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3637] exit_group(0) = ? [pid 3637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3638 ./strace-static-x86_64: Process 3638 attached [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3638] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3638] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3638] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3638] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3638] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3638] chdir("./bus") = 0 [pid 3638] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3638] exit_group(0) = ? [pid 3638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3639 ./strace-static-x86_64: Process 3639 attached [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3639] setpgid(0, 0) = 0 [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3639] write(3, "1000", 4) = 4 [pid 3639] close(3) = 0 [pid 3639] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3639] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3639] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3639] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3639] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3639] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3639] chdir("./bus") = 0 [pid 3639] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3639] exit_group(0) = ? [pid 3639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3640 ./strace-static-x86_64: Process 3640 attached [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3640] setpgid(0, 0) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3640] write(3, "1000", 4) = 4 [pid 3640] close(3) = 0 [pid 3640] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3640] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3640] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3640] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3640] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.651851][ T3637] overlayfs: filesystem on './bus' not supported as upperdir [ 52.670057][ T3638] overlayfs: filesystem on './bus' not supported as upperdir [ 52.688864][ T3639] overlayfs: filesystem on './bus' not supported as upperdir [pid 3640] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3640] chdir("./bus") = 0 [pid 3640] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3640] exit_group(0) = ? [pid 3640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3641 ./strace-static-x86_64: Process 3641 attached [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] setpgid(0, 0) = 0 [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3641] write(3, "1000", 4) = 4 [pid 3641] close(3) = 0 [pid 3641] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3641] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3641] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3641] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3641] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3641] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3641] chdir("./bus") = 0 [pid 3641] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3641] exit_group(0) = ? [pid 3641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3642 ./strace-static-x86_64: Process 3642 attached [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3642] setpgid(0, 0) = 0 [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3642] write(3, "1000", 4) = 4 [pid 3642] close(3) = 0 [pid 3642] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3642] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3642] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3642] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3642] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3642] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3642] chdir("./bus") = 0 [pid 3642] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3642] exit_group(0) = ? [pid 3642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3643 attached , child_tidptr=0x5555571cf5d0) = 3643 [pid 3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3643] setpgid(0, 0) = 0 [pid 3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3643] write(3, "1000", 4) = 4 [pid 3643] close(3) = 0 [pid 3643] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3643] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3643] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3643] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3643] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.708514][ T3640] overlayfs: filesystem on './bus' not supported as upperdir [ 52.729174][ T3641] overlayfs: filesystem on './bus' not supported as upperdir [ 52.746890][ T3642] overlayfs: filesystem on './bus' not supported as upperdir [pid 3643] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3643] chdir("./bus") = 0 [pid 3643] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3643] exit_group(0) = ? [pid 3643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3644 ./strace-static-x86_64: Process 3644 attached [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3644] setpgid(0, 0) = 0 [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3644] write(3, "1000", 4) = 4 [pid 3644] close(3) = 0 [pid 3644] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3644] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3644] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3644] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3644] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3644] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3644] chdir("./bus") = 0 [pid 3644] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3644] exit_group(0) = ? [pid 3644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3645 ./strace-static-x86_64: Process 3645 attached [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] setpgid(0, 0) = 0 [pid 3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3645] write(3, "1000", 4) = 4 [pid 3645] close(3) = 0 [pid 3645] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3645] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3645] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3645] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3645] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3645] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3645] chdir("./bus") = 0 [pid 3645] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3645] exit_group(0) = ? [pid 3645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3646 ./strace-static-x86_64: Process 3646 attached [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3646] setpgid(0, 0) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3646] write(3, "1000", 4) = 4 [pid 3646] close(3) = 0 [pid 3646] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3646] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3646] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3646] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3646] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.763526][ T3643] overlayfs: filesystem on './bus' not supported as upperdir [ 52.780216][ T3644] overlayfs: filesystem on './bus' not supported as upperdir [ 52.797068][ T3645] overlayfs: filesystem on './bus' not supported as upperdir [pid 3646] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3646] chdir("./bus") = 0 [pid 3646] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3646] exit_group(0) = ? [pid 3646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3647 ./strace-static-x86_64: Process 3647 attached [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3647] setpgid(0, 0) = 0 [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3647] write(3, "1000", 4) = 4 [pid 3647] close(3) = 0 [pid 3647] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3647] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3647] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3647] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3647] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3647] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3647] chdir("./bus") = 0 [pid 3647] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3647] exit_group(0) = ? [pid 3647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3648 ./strace-static-x86_64: Process 3648 attached [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3648] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3648] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3648] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3648] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3648] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3648] chdir("./bus") = 0 [pid 3648] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3648] exit_group(0) = ? [pid 3648] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3649 ./strace-static-x86_64: Process 3649 attached [pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3649] setpgid(0, 0) = 0 [pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3649] write(3, "1000", 4) = 4 [pid 3649] close(3) = 0 [pid 3649] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3649] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3649] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3649] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3649] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.812820][ T3646] overlayfs: filesystem on './bus' not supported as upperdir [ 52.828861][ T3647] overlayfs: filesystem on './bus' not supported as upperdir [ 52.848317][ T3648] overlayfs: filesystem on './bus' not supported as upperdir [pid 3649] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3649] chdir("./bus") = 0 [pid 3649] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3649] exit_group(0) = ? [pid 3649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3650 attached , child_tidptr=0x5555571cf5d0) = 3650 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3650] setpgid(0, 0) = 0 [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3650] write(3, "1000", 4) = 4 [pid 3650] close(3) = 0 [pid 3650] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3650] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3650] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3650] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3650] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3650] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3650] chdir("./bus") = 0 [pid 3650] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3650] exit_group(0) = ? [pid 3650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3651 ./strace-static-x86_64: Process 3651 attached [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3651] setpgid(0, 0) = 0 [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3651] write(3, "1000", 4) = 4 [pid 3651] close(3) = 0 [pid 3651] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3651] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3651] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3651] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3651] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3651] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3651] chdir("./bus") = 0 [pid 3651] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3651] exit_group(0) = ? [pid 3651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3652 ./strace-static-x86_64: Process 3652 attached [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3652] setpgid(0, 0) = 0 [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] write(3, "1000", 4) = 4 [pid 3652] close(3) = 0 [pid 3652] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3652] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3652] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3652] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3652] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.865059][ T3649] overlayfs: filesystem on './bus' not supported as upperdir [ 52.880089][ T3650] overlayfs: filesystem on './bus' not supported as upperdir [ 52.895971][ T3651] overlayfs: filesystem on './bus' not supported as upperdir [pid 3652] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3652] chdir("./bus") = 0 [pid 3652] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3652] exit_group(0) = ? [pid 3652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3653 ./strace-static-x86_64: Process 3653 attached [pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3653] setpgid(0, 0) = 0 [pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3653] write(3, "1000", 4) = 4 [pid 3653] close(3) = 0 [pid 3653] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3653] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3653] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3653] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3653] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3653] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3653] chdir("./bus") = 0 [pid 3653] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3653] exit_group(0) = ? [pid 3653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3654 ./strace-static-x86_64: Process 3654 attached [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3654] setpgid(0, 0) = 0 [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3654] write(3, "1000", 4) = 4 [pid 3654] close(3) = 0 [pid 3654] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3654] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3654] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3654] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3654] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3654] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3654] chdir("./bus") = 0 [pid 3654] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3654] exit_group(0) = ? [pid 3654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3655 ./strace-static-x86_64: Process 3655 attached [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3655] setpgid(0, 0) = 0 [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3655] write(3, "1000", 4) = 4 [pid 3655] close(3) = 0 [pid 3655] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3655] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3655] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3655] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3655] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.915110][ T3652] overlayfs: filesystem on './bus' not supported as upperdir [ 52.931261][ T3653] overlayfs: filesystem on './bus' not supported as upperdir [ 52.949854][ T3654] overlayfs: filesystem on './bus' not supported as upperdir [pid 3655] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3655] chdir("./bus") = 0 [pid 3655] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3655] exit_group(0) = ? [pid 3655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3656 attached , child_tidptr=0x5555571cf5d0) = 3656 [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3656] setpgid(0, 0) = 0 [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3656] write(3, "1000", 4) = 4 [pid 3656] close(3) = 0 [pid 3656] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3656] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3656] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3656] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3656] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3656] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3656] chdir("./bus") = 0 [pid 3656] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3656] exit_group(0) = ? [pid 3656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3657 ./strace-static-x86_64: Process 3657 attached [pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3657] setpgid(0, 0) = 0 [pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3657] write(3, "1000", 4) = 4 [pid 3657] close(3) = 0 [pid 3657] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3657] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3657] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3657] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3657] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3657] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3657] chdir("./bus") = 0 [pid 3657] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3657] exit_group(0) = ? [pid 3657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3658 ./strace-static-x86_64: Process 3658 attached [pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3658] setpgid(0, 0) = 0 [pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3658] write(3, "1000", 4) = 4 [pid 3658] close(3) = 0 [pid 3658] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3658] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3658] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3658] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3658] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 52.970669][ T3655] overlayfs: filesystem on './bus' not supported as upperdir [ 52.985605][ T3656] overlayfs: filesystem on './bus' not supported as upperdir [ 53.004394][ T3657] overlayfs: filesystem on './bus' not supported as upperdir [pid 3658] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3658] chdir("./bus") = 0 [pid 3658] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3658] exit_group(0) = ? [pid 3658] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3659 ./strace-static-x86_64: Process 3659 attached [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3659] setpgid(0, 0) = 0 [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3659] write(3, "1000", 4) = 4 [pid 3659] close(3) = 0 [pid 3659] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3659] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3659] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3659] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3659] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3659] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3659] chdir("./bus") = 0 [pid 3659] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3659] exit_group(0) = ? [pid 3659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3660 ./strace-static-x86_64: Process 3660 attached [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0) = 0 [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3660] write(3, "1000", 4) = 4 [pid 3660] close(3) = 0 [pid 3660] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3660] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3660] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3660] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3660] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3660] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3660] chdir("./bus") = 0 [pid 3660] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3660] exit_group(0) = ? [pid 3660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3661 ./strace-static-x86_64: Process 3661 attached [pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3661] setpgid(0, 0) = 0 [pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3661] write(3, "1000", 4) = 4 [pid 3661] close(3) = 0 [pid 3661] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3661] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3661] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3661] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3661] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.020992][ T3658] overlayfs: filesystem on './bus' not supported as upperdir [ 53.037451][ T3659] overlayfs: filesystem on './bus' not supported as upperdir [ 53.053909][ T3660] overlayfs: filesystem on './bus' not supported as upperdir [pid 3661] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3661] chdir("./bus") = 0 [pid 3661] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3661] exit_group(0) = ? [pid 3661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3662 attached , child_tidptr=0x5555571cf5d0) = 3662 [pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3662] setpgid(0, 0) = 0 [pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3662] write(3, "1000", 4) = 4 [pid 3662] close(3) = 0 [pid 3662] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3662] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3662] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3662] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3662] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3662] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3662] chdir("./bus") = 0 [pid 3662] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3662] exit_group(0) = ? [pid 3662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3663 attached , child_tidptr=0x5555571cf5d0) = 3663 [pid 3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3663] setpgid(0, 0) = 0 [pid 3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3663] write(3, "1000", 4) = 4 [pid 3663] close(3) = 0 [pid 3663] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3663] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3663] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3663] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3663] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.072842][ T3661] overlayfs: filesystem on './bus' not supported as upperdir [ 53.100070][ T3662] overlayfs: filesystem on './bus' not supported as upperdir [pid 3663] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3663] chdir("./bus") = 0 [pid 3663] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3663] exit_group(0) = ? [pid 3663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3664 ./strace-static-x86_64: Process 3664 attached [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3664] setpgid(0, 0) = 0 [pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3664] write(3, "1000", 4) = 4 [pid 3664] close(3) = 0 [pid 3664] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3664] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3664] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3664] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3664] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3664] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3664] chdir("./bus") = 0 [pid 3664] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3664] exit_group(0) = ? [pid 3664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3665 ./strace-static-x86_64: Process 3665 attached [pid 3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3665] setpgid(0, 0) = 0 [pid 3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3665] write(3, "1000", 4) = 4 [pid 3665] close(3) = 0 [pid 3665] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3665] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3665] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3665] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3665] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3665] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3665] chdir("./bus") = 0 [pid 3665] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3665] exit_group(0) = ? [pid 3665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3666 ./strace-static-x86_64: Process 3666 attached [pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3666] setpgid(0, 0) = 0 [pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3666] write(3, "1000", 4) = 4 [pid 3666] close(3) = 0 [pid 3666] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3666] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3666] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3666] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3666] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3666] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [ 53.117245][ T3663] overlayfs: filesystem on './bus' not supported as upperdir [ 53.133115][ T3664] overlayfs: filesystem on './bus' not supported as upperdir [ 53.149937][ T3665] overlayfs: filesystem on './bus' not supported as upperdir [pid 3666] chdir("./bus") = 0 [pid 3666] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3666] exit_group(0) = ? [pid 3666] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3667 ./strace-static-x86_64: Process 3667 attached [pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3667] setpgid(0, 0) = 0 [pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3667] write(3, "1000", 4) = 4 [pid 3667] close(3) = 0 [pid 3667] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3667] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3667] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3667] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3667] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3667] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3667] chdir("./bus") = 0 [pid 3667] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3667] exit_group(0) = ? [pid 3667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3668 attached [pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3668] setpgid(0, 0) = 0 [pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3668] write(3, "1000", 4) = 4 [pid 3668] close(3) = 0 [pid 3668] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3668] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3668] mknodat(AT_FDCWD, "./file0", 000 [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3668 [pid 3668] <... mknodat resumed>) = -1 EEXIST (File exists) [pid 3668] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3668] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3668] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3668] chdir("./bus") = 0 [pid 3668] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3668] exit_group(0) = ? [pid 3668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3669 ./strace-static-x86_64: Process 3669 attached [pid 3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3669] setpgid(0, 0) = 0 [pid 3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3669] write(3, "1000", 4) = 4 [pid 3669] close(3) = 0 [pid 3669] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3669] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3669] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3669] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3669] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3669] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3669] chdir("./bus") = 0 [pid 3669] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3669] exit_group(0) = ? [pid 3669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3670 ./strace-static-x86_64: Process 3670 attached [pid 3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3670] setpgid(0, 0) = 0 [pid 3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3670] write(3, "1000", 4) = 4 [pid 3670] close(3) = 0 [pid 3670] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3670] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3670] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3670] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3670] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.166669][ T3666] overlayfs: filesystem on './bus' not supported as upperdir [ 53.184735][ T3667] overlayfs: filesystem on './bus' not supported as upperdir [ 53.200253][ T3668] overlayfs: filesystem on './bus' not supported as upperdir [ 53.214576][ T3669] overlayfs: filesystem on './bus' not supported as upperdir [pid 3670] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3670] chdir("./bus") = 0 [pid 3670] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3670] exit_group(0) = ? [pid 3670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3671 attached , child_tidptr=0x5555571cf5d0) = 3671 [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3671] setpgid(0, 0) = 0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3671] write(3, "1000", 4) = 4 [pid 3671] close(3) = 0 [pid 3671] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3671] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3671] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3671] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3671] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3671] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3671] chdir("./bus") = 0 [pid 3671] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3671] exit_group(0) = ? [pid 3671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3672 ./strace-static-x86_64: Process 3672 attached [pid 3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3672] setpgid(0, 0) = 0 [pid 3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3672] write(3, "1000", 4) = 4 [pid 3672] close(3) = 0 [pid 3672] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3672] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3672] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3672] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3672] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.233393][ T3670] overlayfs: filesystem on './bus' not supported as upperdir [ 53.260536][ T3671] overlayfs: filesystem on './bus' not supported as upperdir [pid 3672] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3672] chdir("./bus") = 0 [pid 3672] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3672] exit_group(0) = ? [pid 3672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3673 ./strace-static-x86_64: Process 3673 attached [pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3673] setpgid(0, 0) = 0 [pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3673] write(3, "1000", 4) = 4 [pid 3673] close(3) = 0 [pid 3673] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3673] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3673] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3673] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3673] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3673] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3673] chdir("./bus") = 0 [pid 3673] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3673] exit_group(0) = ? [pid 3673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3674 attached , child_tidptr=0x5555571cf5d0) = 3674 [pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3674] setpgid(0, 0) = 0 [pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3674] write(3, "1000", 4) = 4 [pid 3674] close(3) = 0 [pid 3674] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3674] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3674] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3674] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3674] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3674] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3674] chdir("./bus") = 0 [pid 3674] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3674] exit_group(0) = ? [pid 3674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3675 ./strace-static-x86_64: Process 3675 attached [pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3675] setpgid(0, 0) = 0 [pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3675] write(3, "1000", 4) = 4 [pid 3675] close(3) = 0 [pid 3675] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3675] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3675] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3675] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3675] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.279215][ T3672] overlayfs: filesystem on './bus' not supported as upperdir [ 53.296941][ T3673] overlayfs: filesystem on './bus' not supported as upperdir [ 53.313111][ T3674] overlayfs: filesystem on './bus' not supported as upperdir [pid 3675] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3675] chdir("./bus") = 0 [pid 3675] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3675] exit_group(0) = ? [pid 3675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3676 ./strace-static-x86_64: Process 3676 attached [pid 3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3676] setpgid(0, 0) = 0 [pid 3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3676] write(3, "1000", 4) = 4 [pid 3676] close(3) = 0 [pid 3676] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3676] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3676] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3676] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3676] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3676] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3676] chdir("./bus") = 0 [pid 3676] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3676] exit_group(0) = ? [pid 3676] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3677 ./strace-static-x86_64: Process 3677 attached [pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3677] setpgid(0, 0) = 0 [pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3677] write(3, "1000", 4) = 4 [pid 3677] close(3) = 0 [pid 3677] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3677] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3677] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3677] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3677] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3677] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3677] chdir("./bus") = 0 [pid 3677] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3677] exit_group(0) = ? [pid 3677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3678 ./strace-static-x86_64: Process 3678 attached [pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3678] setpgid(0, 0) = 0 [pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3678] write(3, "1000", 4) = 4 [pid 3678] close(3) = 0 [pid 3678] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3678] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3678] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3678] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3678] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.331727][ T3675] overlayfs: filesystem on './bus' not supported as upperdir [ 53.348498][ T3676] overlayfs: filesystem on './bus' not supported as upperdir [ 53.364947][ T3677] overlayfs: filesystem on './bus' not supported as upperdir [pid 3678] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3678] chdir("./bus") = 0 [pid 3678] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3678] exit_group(0) = ? [pid 3678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3679 ./strace-static-x86_64: Process 3679 attached [pid 3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3679] setpgid(0, 0) = 0 [pid 3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3679] write(3, "1000", 4) = 4 [pid 3679] close(3) = 0 [pid 3679] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3679] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3679] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3679] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3679] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3679] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3679] chdir("./bus") = 0 [pid 3679] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3679] exit_group(0) = ? [pid 3679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3680 ./strace-static-x86_64: Process 3680 attached [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3680] setpgid(0, 0) = 0 [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3680] write(3, "1000", 4) = 4 [pid 3680] close(3) = 0 [pid 3680] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3680] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3680] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3680] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3680] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3680] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3680] chdir("./bus") = 0 [pid 3680] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3680] exit_group(0) = ? [pid 3680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3681 ./strace-static-x86_64: Process 3681 attached [pid 3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3681] setpgid(0, 0) = 0 [pid 3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3681] write(3, "1000", 4) = 4 [pid 3681] close(3) = 0 [pid 3681] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3681] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3681] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3681] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3681] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.382212][ T3678] overlayfs: filesystem on './bus' not supported as upperdir [ 53.398265][ T3679] overlayfs: filesystem on './bus' not supported as upperdir [ 53.416462][ T3680] overlayfs: filesystem on './bus' not supported as upperdir [pid 3681] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3681] chdir("./bus") = 0 [pid 3681] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3681] exit_group(0) = ? [pid 3681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3682 ./strace-static-x86_64: Process 3682 attached [pid 3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3682] setpgid(0, 0) = 0 [pid 3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3682] write(3, "1000", 4) = 4 [pid 3682] close(3) = 0 [pid 3682] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3682] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3682] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3682] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3682] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3682] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3682] chdir("./bus") = 0 [pid 3682] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3682] exit_group(0) = ? [pid 3682] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3683 ./strace-static-x86_64: Process 3683 attached [pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3683] setpgid(0, 0) = 0 [pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3683] write(3, "1000", 4) = 4 [pid 3683] close(3) = 0 [pid 3683] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3683] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3683] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3683] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3683] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.436130][ T3681] overlayfs: filesystem on './bus' not supported as upperdir [ 53.452540][ T3682] overlayfs: filesystem on './bus' not supported as upperdir [pid 3683] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3683] chdir("./bus") = 0 [pid 3683] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3683] exit_group(0) = ? [pid 3683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3684 attached [pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3684] setpgid(0, 0) = 0 [pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3684 [pid 3684] <... openat resumed>) = 3 [pid 3684] write(3, "1000", 4) = 4 [pid 3684] close(3) = 0 [pid 3684] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3684] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3684] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3684] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3684] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3684] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3684] chdir("./bus") = 0 [pid 3684] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3684] exit_group(0) = ? [pid 3684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3685 ./strace-static-x86_64: Process 3685 attached [pid 3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3685] setpgid(0, 0) = 0 [pid 3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3685] write(3, "1000", 4) = 4 [pid 3685] close(3) = 0 [pid 3685] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3685] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3685] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3685] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3685] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3685] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3685] chdir("./bus") = 0 [pid 3685] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3685] exit_group(0) = ? [pid 3685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3686 ./strace-static-x86_64: Process 3686 attached [pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3686] setpgid(0, 0) = 0 [pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3686] write(3, "1000", 4) = 4 [pid 3686] close(3) = 0 [pid 3686] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3686] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3686] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3686] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3686] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.478936][ T3683] overlayfs: filesystem on './bus' not supported as upperdir [ 53.494743][ T3684] overlayfs: filesystem on './bus' not supported as upperdir [ 53.514082][ T3685] overlayfs: filesystem on './bus' not supported as upperdir [pid 3686] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3686] chdir("./bus") = 0 [pid 3686] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3686] exit_group(0) = ? [pid 3686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3687 ./strace-static-x86_64: Process 3687 attached [pid 3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3687] setpgid(0, 0) = 0 [pid 3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3687] write(3, "1000", 4) = 4 [pid 3687] close(3) = 0 [pid 3687] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3687] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3687] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3687] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3687] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3687] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3687] chdir("./bus") = 0 [pid 3687] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3687] exit_group(0) = ? [pid 3687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3688 ./strace-static-x86_64: Process 3688 attached [pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3688] setpgid(0, 0) = 0 [pid 3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3688] write(3, "1000", 4) = 4 [pid 3688] close(3) = 0 [pid 3688] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3688] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3688] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3688] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3688] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3688] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3688] chdir("./bus") = 0 [pid 3688] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3688] exit_group(0) = ? [pid 3688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3689 attached , child_tidptr=0x5555571cf5d0) = 3689 [pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3689] setpgid(0, 0) = 0 [pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3689] write(3, "1000", 4) = 4 [pid 3689] close(3) = 0 [pid 3689] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3689] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3689] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3689] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3689] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.530911][ T3686] overlayfs: filesystem on './bus' not supported as upperdir [ 53.549518][ T3687] overlayfs: filesystem on './bus' not supported as upperdir [ 53.571029][ T3688] overlayfs: filesystem on './bus' not supported as upperdir [pid 3689] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3689] chdir("./bus") = 0 [pid 3689] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3689] exit_group(0) = ? [pid 3689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3690 attached , child_tidptr=0x5555571cf5d0) = 3690 [pid 3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3690] setpgid(0, 0) = 0 [pid 3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3690] write(3, "1000", 4) = 4 [pid 3690] close(3) = 0 [pid 3690] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3690] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3690] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3690] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3690] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3690] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3690] chdir("./bus") = 0 [pid 3690] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3690] exit_group(0) = ? [pid 3690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3691 ./strace-static-x86_64: Process 3691 attached [pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3691] setpgid(0, 0) = 0 [pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3691] write(3, "1000", 4) = 4 [pid 3691] close(3) = 0 [pid 3691] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3691] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3691] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3691] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3691] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3691] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3691] chdir("./bus") = 0 [pid 3691] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3691] exit_group(0) = ? [pid 3691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3692 ./strace-static-x86_64: Process 3692 attached [pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3692] setpgid(0, 0) = 0 [pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3692] write(3, "1000", 4) = 4 [pid 3692] close(3) = 0 [pid 3692] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3692] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3692] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3692] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3692] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.588990][ T3689] overlayfs: filesystem on './bus' not supported as upperdir [ 53.605325][ T3690] overlayfs: filesystem on './bus' not supported as upperdir [ 53.622426][ T3691] overlayfs: filesystem on './bus' not supported as upperdir [pid 3692] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3692] chdir("./bus") = 0 [pid 3692] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3692] exit_group(0) = ? [pid 3692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3693 attached [pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3693] setpgid(0, 0) = 0 [pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3693 [pid 3693] <... openat resumed>) = 3 [pid 3693] write(3, "1000", 4) = 4 [pid 3693] close(3) = 0 [pid 3693] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3693] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3693] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3693] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3693] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3693] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3693] chdir("./bus") = 0 [pid 3693] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3693] exit_group(0) = ? [pid 3693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3694 ./strace-static-x86_64: Process 3694 attached [pid 3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3694] setpgid(0, 0) = 0 [pid 3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3694] write(3, "1000", 4) = 4 [pid 3694] close(3) = 0 [pid 3694] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3694] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3694] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3694] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3694] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3694] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3694] chdir("./bus") = 0 [pid 3694] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3694] exit_group(0) = ? [pid 3694] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3695 attached , child_tidptr=0x5555571cf5d0) = 3695 [pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3695] setpgid(0, 0) = 0 [pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3695] write(3, "1000", 4) = 4 [pid 3695] close(3) = 0 [pid 3695] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3695] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3695] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3695] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3695] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.640465][ T3692] overlayfs: filesystem on './bus' not supported as upperdir [ 53.658168][ T3693] overlayfs: filesystem on './bus' not supported as upperdir [ 53.674880][ T3694] overlayfs: filesystem on './bus' not supported as upperdir [pid 3695] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3695] chdir("./bus") = 0 [pid 3695] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3695] exit_group(0) = ? [pid 3695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3696 ./strace-static-x86_64: Process 3696 attached [pid 3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3696] setpgid(0, 0) = 0 [pid 3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3696] write(3, "1000", 4) = 4 [pid 3696] close(3) = 0 [pid 3696] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3696] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3696] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3696] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3696] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3696] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3696] chdir("./bus") = 0 [pid 3696] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3696] exit_group(0) = ? [pid 3696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3697 attached , child_tidptr=0x5555571cf5d0) = 3697 [pid 3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3697] setpgid(0, 0) = 0 [pid 3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3697] write(3, "1000", 4) = 4 [pid 3697] close(3) = 0 [pid 3697] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3697] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3697] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3697] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3697] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3697] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3697] chdir("./bus") = 0 [pid 3697] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3697] exit_group(0) = ? [pid 3697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3698 ./strace-static-x86_64: Process 3698 attached [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3698] setpgid(0, 0) = 0 [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3698] write(3, "1000", 4) = 4 [pid 3698] close(3) = 0 [pid 3698] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3698] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3698] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3698] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3698] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.694636][ T3695] overlayfs: filesystem on './bus' not supported as upperdir [ 53.711535][ T3696] overlayfs: filesystem on './bus' not supported as upperdir [ 53.728658][ T3697] overlayfs: filesystem on './bus' not supported as upperdir [pid 3698] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3698] chdir("./bus") = 0 [pid 3698] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3698] exit_group(0) = ? [pid 3698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3699 ./strace-static-x86_64: Process 3699 attached [pid 3699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3699] setpgid(0, 0) = 0 [pid 3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3699] write(3, "1000", 4) = 4 [pid 3699] close(3) = 0 [pid 3699] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3699] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3699] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3699] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3699] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3699] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3699] chdir("./bus") = 0 [pid 3699] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3699] exit_group(0) = ? [pid 3699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3700 ./strace-static-x86_64: Process 3700 attached [pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3700] setpgid(0, 0) = 0 [pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3700] write(3, "1000", 4) = 4 [pid 3700] close(3) = 0 [pid 3700] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3700] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3700] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3700] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3700] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3700] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3700] chdir("./bus") = 0 [pid 3700] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3700] exit_group(0) = ? [pid 3700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3701 ./strace-static-x86_64: Process 3701 attached [pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3701] setpgid(0, 0) = 0 [pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3701] write(3, "1000", 4) = 4 [pid 3701] close(3) = 0 [pid 3701] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3701] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3701] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3701] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3701] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.747443][ T3698] overlayfs: filesystem on './bus' not supported as upperdir [ 53.764929][ T3699] overlayfs: filesystem on './bus' not supported as upperdir [ 53.781870][ T3700] overlayfs: filesystem on './bus' not supported as upperdir [pid 3701] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3701] chdir("./bus") = 0 [pid 3701] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3701] exit_group(0) = ? [pid 3701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3702 ./strace-static-x86_64: Process 3702 attached [pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3702] setpgid(0, 0) = 0 [pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3702] write(3, "1000", 4) = 4 [pid 3702] close(3) = 0 [pid 3702] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3702] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3702] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3702] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3702] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3702] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3702] chdir("./bus") = 0 [pid 3702] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3702] exit_group(0) = ? [pid 3702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3703 ./strace-static-x86_64: Process 3703 attached [pid 3703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3703] setpgid(0, 0) = 0 [pid 3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3703] write(3, "1000", 4) = 4 [pid 3703] close(3) = 0 [pid 3703] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3703] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3703] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3703] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3703] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3703] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3703] chdir("./bus") = 0 [pid 3703] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3703] exit_group(0) = ? [pid 3703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3704 ./strace-static-x86_64: Process 3704 attached [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3704] setpgid(0, 0) = 0 [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3704] write(3, "1000", 4) = 4 [pid 3704] close(3) = 0 [pid 3704] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3704] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3704] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3704] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3704] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.800788][ T3701] overlayfs: filesystem on './bus' not supported as upperdir [ 53.817553][ T3702] overlayfs: filesystem on './bus' not supported as upperdir [ 53.834308][ T3703] overlayfs: filesystem on './bus' not supported as upperdir [pid 3704] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3704] chdir("./bus") = 0 [pid 3704] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3704] exit_group(0) = ? [pid 3704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3705 attached , child_tidptr=0x5555571cf5d0) = 3705 [pid 3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3705] setpgid(0, 0) = 0 [pid 3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3705] write(3, "1000", 4) = 4 [pid 3705] close(3) = 0 [pid 3705] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3705] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3705] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3705] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3705] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3705] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3705] chdir("./bus") = 0 [pid 3705] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3705] exit_group(0) = ? [pid 3705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3706 ./strace-static-x86_64: Process 3706 attached [pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3706] setpgid(0, 0) = 0 [pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3706] write(3, "1000", 4) = 4 [pid 3706] close(3) = 0 [pid 3706] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3706] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3706] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3706] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3706] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3706] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3706] chdir("./bus") = 0 [pid 3706] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3706] exit_group(0) = ? [pid 3706] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3707 ./strace-static-x86_64: Process 3707 attached [pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3707] setpgid(0, 0) = 0 [pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3707] write(3, "1000", 4) = 4 [pid 3707] close(3) = 0 [pid 3707] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3707] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3707] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3707] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3707] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.853219][ T3704] overlayfs: filesystem on './bus' not supported as upperdir [ 53.872376][ T3705] overlayfs: filesystem on './bus' not supported as upperdir [ 53.889619][ T3706] overlayfs: filesystem on './bus' not supported as upperdir [pid 3707] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3707] chdir("./bus") = 0 [pid 3707] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3707] exit_group(0) = ? [pid 3707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3708 ./strace-static-x86_64: Process 3708 attached [pid 3708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3708] setpgid(0, 0) = 0 [pid 3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3708] write(3, "1000", 4) = 4 [pid 3708] close(3) = 0 [pid 3708] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3708] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3708] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3708] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3708] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3708] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3708] chdir("./bus") = 0 [pid 3708] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3708] exit_group(0) = ? [pid 3708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3709 attached , child_tidptr=0x5555571cf5d0) = 3709 [pid 3709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3709] setpgid(0, 0) = 0 [pid 3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3709] write(3, "1000", 4) = 4 [pid 3709] close(3) = 0 [pid 3709] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3709] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3709] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3709] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3709] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3709] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3709] chdir("./bus") = 0 [pid 3709] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3709] exit_group(0) = ? [pid 3709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3710 ./strace-static-x86_64: Process 3710 attached [pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3710] setpgid(0, 0) = 0 [pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3710] write(3, "1000", 4) = 4 [pid 3710] close(3) = 0 [pid 3710] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3710] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3710] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3710] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3710] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.905781][ T3707] overlayfs: filesystem on './bus' not supported as upperdir [ 53.923023][ T3708] overlayfs: filesystem on './bus' not supported as upperdir [ 53.939340][ T3709] overlayfs: filesystem on './bus' not supported as upperdir [pid 3710] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3710] chdir("./bus") = 0 [pid 3710] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3710] exit_group(0) = ? [pid 3710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3711 ./strace-static-x86_64: Process 3711 attached [pid 3711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3711] setpgid(0, 0) = 0 [pid 3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3711] write(3, "1000", 4) = 4 [pid 3711] close(3) = 0 [pid 3711] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3711] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3711] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3711] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3711] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3711] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3711] chdir("./bus") = 0 [pid 3711] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3711] exit_group(0) = ? [pid 3711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3712 ./strace-static-x86_64: Process 3712 attached [pid 3712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3712] setpgid(0, 0) = 0 [pid 3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3712] write(3, "1000", 4) = 4 [pid 3712] close(3) = 0 [pid 3712] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3712] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3712] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3712] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3712] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3712] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3712] chdir("./bus") = 0 [pid 3712] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3712] exit_group(0) = ? [pid 3712] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3713 attached , child_tidptr=0x5555571cf5d0) = 3713 [pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3713] setpgid(0, 0) = 0 [pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3713] write(3, "1000", 4) = 4 [pid 3713] close(3) = 0 [pid 3713] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3713] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3713] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3713] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3713] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 53.956248][ T3710] overlayfs: filesystem on './bus' not supported as upperdir [ 53.975598][ T3711] overlayfs: filesystem on './bus' not supported as upperdir [ 53.992167][ T3712] overlayfs: filesystem on './bus' not supported as upperdir [pid 3713] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3713] chdir("./bus") = 0 [pid 3713] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3713] exit_group(0) = ? [pid 3713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3714 ./strace-static-x86_64: Process 3714 attached [pid 3714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3714] setpgid(0, 0) = 0 [pid 3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3714] write(3, "1000", 4) = 4 [pid 3714] close(3) = 0 [pid 3714] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3714] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3714] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3714] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3714] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3714] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3714] chdir("./bus") = 0 [pid 3714] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3714] exit_group(0) = ? [pid 3714] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3715 ./strace-static-x86_64: Process 3715 attached [pid 3715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3715] setpgid(0, 0) = 0 [pid 3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3715] write(3, "1000", 4) = 4 [pid 3715] close(3) = 0 [pid 3715] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3715] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3715] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3715] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3715] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3715] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3715] chdir("./bus") = 0 [pid 3715] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3715] exit_group(0) = ? [pid 3715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3716 ./strace-static-x86_64: Process 3716 attached [pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3716] setpgid(0, 0) = 0 [pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3716] write(3, "1000", 4) = 4 [pid 3716] close(3) = 0 [pid 3716] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3716] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3716] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3716] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3716] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.010591][ T3713] overlayfs: filesystem on './bus' not supported as upperdir [ 54.026704][ T3714] overlayfs: filesystem on './bus' not supported as upperdir [ 54.043459][ T3715] overlayfs: filesystem on './bus' not supported as upperdir [pid 3716] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3716] chdir("./bus") = 0 [pid 3716] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3716] exit_group(0) = ? [pid 3716] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3717 ./strace-static-x86_64: Process 3717 attached [pid 3717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3717] setpgid(0, 0) = 0 [pid 3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3717] write(3, "1000", 4) = 4 [pid 3717] close(3) = 0 [pid 3717] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3717] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3717] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3717] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3717] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3717] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3717] chdir("./bus") = 0 [pid 3717] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3717] exit_group(0) = ? [pid 3717] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3718 ./strace-static-x86_64: Process 3718 attached [pid 3718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3718] setpgid(0, 0) = 0 [pid 3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3718] write(3, "1000", 4) = 4 [pid 3718] close(3) = 0 [pid 3718] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3718] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3718] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3718] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3718] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3718] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3718] chdir("./bus") = 0 [pid 3718] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3718] exit_group(0) = ? [pid 3718] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3719 attached , child_tidptr=0x5555571cf5d0) = 3719 [pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3719] setpgid(0, 0) = 0 [pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3719] write(3, "1000", 4) = 4 [pid 3719] close(3) = 0 [pid 3719] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3719] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3719] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3719] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3719] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.060333][ T3716] overlayfs: filesystem on './bus' not supported as upperdir [ 54.077118][ T3717] overlayfs: filesystem on './bus' not supported as upperdir [ 54.092764][ T3718] overlayfs: filesystem on './bus' not supported as upperdir [pid 3719] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3719] chdir("./bus") = 0 [pid 3719] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3719] exit_group(0) = ? [pid 3719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3720 ./strace-static-x86_64: Process 3720 attached [pid 3720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3720] setpgid(0, 0) = 0 [pid 3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3720] write(3, "1000", 4) = 4 [pid 3720] close(3) = 0 [pid 3720] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3720] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3720] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3720] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3720] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3720] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3720] chdir("./bus") = 0 [pid 3720] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3720] exit_group(0) = ? [pid 3720] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3721 ./strace-static-x86_64: Process 3721 attached [pid 3721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3721] setpgid(0, 0) = 0 [pid 3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3721] write(3, "1000", 4) = 4 [pid 3721] close(3) = 0 [pid 3721] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3721] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3721] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3721] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3721] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3721] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3721] chdir("./bus") = 0 [pid 3721] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3721] exit_group(0) = ? [pid 3721] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3722 ./strace-static-x86_64: Process 3722 attached [pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3722] setpgid(0, 0) = 0 [pid 3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3722] write(3, "1000", 4) = 4 [pid 3722] close(3) = 0 [pid 3722] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3722] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3722] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3722] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3722] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.109756][ T3719] overlayfs: filesystem on './bus' not supported as upperdir [ 54.125830][ T3720] overlayfs: filesystem on './bus' not supported as upperdir [ 54.144687][ T3721] overlayfs: filesystem on './bus' not supported as upperdir [pid 3722] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3722] chdir("./bus") = 0 [pid 3722] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3722] exit_group(0) = ? [pid 3722] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3723 ./strace-static-x86_64: Process 3723 attached [pid 3723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3723] setpgid(0, 0) = 0 [pid 3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3723] write(3, "1000", 4) = 4 [pid 3723] close(3) = 0 [pid 3723] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3723] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3723] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3723] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3723] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3723] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3723] chdir("./bus") = 0 [pid 3723] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3723] exit_group(0) = ? [pid 3723] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3724 ./strace-static-x86_64: Process 3724 attached [pid 3724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3724] setpgid(0, 0) = 0 [pid 3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3724] write(3, "1000", 4) = 4 [pid 3724] close(3) = 0 [pid 3724] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3724] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3724] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3724] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3724] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3724] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3724] chdir("./bus") = 0 [pid 3724] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3724] exit_group(0) = ? [pid 3724] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3725 ./strace-static-x86_64: Process 3725 attached [pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3725] setpgid(0, 0) = 0 [pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3725] write(3, "1000", 4) = 4 [pid 3725] close(3) = 0 [pid 3725] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3725] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3725] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3725] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3725] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.164042][ T3722] overlayfs: filesystem on './bus' not supported as upperdir [ 54.180249][ T3723] overlayfs: filesystem on './bus' not supported as upperdir [ 54.196627][ T3724] overlayfs: filesystem on './bus' not supported as upperdir [pid 3725] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3725] chdir("./bus") = 0 [pid 3725] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3725] exit_group(0) = ? [pid 3725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3726 attached , child_tidptr=0x5555571cf5d0) = 3726 [pid 3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3726] setpgid(0, 0) = 0 [pid 3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3726] write(3, "1000", 4) = 4 [pid 3726] close(3) = 0 [pid 3726] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3726] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3726] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3726] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3726] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3726] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3726] chdir("./bus") = 0 [pid 3726] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3726] exit_group(0) = ? [pid 3726] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3726, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3727 ./strace-static-x86_64: Process 3727 attached [pid 3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3727] setpgid(0, 0) = 0 [pid 3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3727] write(3, "1000", 4) = 4 [pid 3727] close(3) = 0 [pid 3727] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3727] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3727] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3727] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3727] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3727] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3727] chdir("./bus") = 0 [pid 3727] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3727] exit_group(0) = ? [pid 3727] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3728 attached [pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3728] setpgid(0, 0) = 0 [pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3728] write(3, "1000", 4) = 4 [pid 3728] close(3) = 0 [pid 3728] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3728 [pid 3728] <... openat resumed>) = 3 [pid 3728] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3728] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3728] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3728] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.213874][ T3725] overlayfs: filesystem on './bus' not supported as upperdir [ 54.231405][ T3726] overlayfs: filesystem on './bus' not supported as upperdir [ 54.250408][ T3727] overlayfs: filesystem on './bus' not supported as upperdir [pid 3728] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3728] chdir("./bus") = 0 [pid 3728] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3728] exit_group(0) = ? [pid 3728] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3729 ./strace-static-x86_64: Process 3729 attached [pid 3729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3729] setpgid(0, 0) = 0 [pid 3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3729] write(3, "1000", 4) = 4 [pid 3729] close(3) = 0 [pid 3729] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3729] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3729] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3729] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3729] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3729] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3729] chdir("./bus") = 0 [pid 3729] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3729] exit_group(0) = ? [pid 3729] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3730 ./strace-static-x86_64: Process 3730 attached [pid 3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3730] setpgid(0, 0) = 0 [pid 3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3730] write(3, "1000", 4) = 4 [pid 3730] close(3) = 0 [pid 3730] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3730] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3730] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3730] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3730] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3730] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3730] chdir("./bus") = 0 [pid 3730] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3730] exit_group(0) = ? [pid 3730] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3731 ./strace-static-x86_64: Process 3731 attached [pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3731] setpgid(0, 0) = 0 [pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3731] write(3, "1000", 4) = 4 [pid 3731] close(3) = 0 [pid 3731] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3731] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3731] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3731] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3731] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.266917][ T3728] overlayfs: filesystem on './bus' not supported as upperdir [ 54.282805][ T3729] overlayfs: filesystem on './bus' not supported as upperdir [ 54.298884][ T3730] overlayfs: filesystem on './bus' not supported as upperdir [pid 3731] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3731] chdir("./bus") = 0 [pid 3731] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3731] exit_group(0) = ? [pid 3731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3732 ./strace-static-x86_64: Process 3732 attached [pid 3732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3732] setpgid(0, 0) = 0 [pid 3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3732] write(3, "1000", 4) = 4 [pid 3732] close(3) = 0 [pid 3732] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3732] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3732] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3732] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3732] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3732] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3732] chdir("./bus") = 0 [pid 3732] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3732] exit_group(0) = ? [pid 3732] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3733 ./strace-static-x86_64: Process 3733 attached [pid 3733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3733] setpgid(0, 0) = 0 [pid 3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3733] write(3, "1000", 4) = 4 [pid 3733] close(3) = 0 [pid 3733] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3733] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3733] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3733] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3733] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3733] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3733] chdir("./bus") = 0 [pid 3733] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3733] exit_group(0) = ? [pid 3733] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3734 ./strace-static-x86_64: Process 3734 attached [pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3734] setpgid(0, 0) = 0 [pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3734] write(3, "1000", 4) = 4 [pid 3734] close(3) = 0 [pid 3734] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3734] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3734] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3734] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3734] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3734] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3734] chdir("./bus") = 0 [ 54.313276][ T3731] overlayfs: filesystem on './bus' not supported as upperdir [ 54.328438][ T3732] overlayfs: filesystem on './bus' not supported as upperdir [ 54.344490][ T3733] overlayfs: filesystem on './bus' not supported as upperdir [pid 3734] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3734] exit_group(0) = ? [pid 3734] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3735 attached , child_tidptr=0x5555571cf5d0) = 3735 [pid 3735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3735] setpgid(0, 0) = 0 [pid 3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3735] write(3, "1000", 4) = 4 [pid 3735] close(3) = 0 [pid 3735] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3735] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3735] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3735] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3735] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3735] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3735] chdir("./bus") = 0 [pid 3735] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3735] exit_group(0) = ? [pid 3735] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3736 ./strace-static-x86_64: Process 3736 attached [pid 3736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3736] setpgid(0, 0) = 0 [pid 3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3736] write(3, "1000", 4) = 4 [pid 3736] close(3) = 0 [pid 3736] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3736] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3736] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3736] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3736] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3736] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3736] chdir("./bus") = 0 [pid 3736] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3736] exit_group(0) = ? [pid 3736] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3737 attached , child_tidptr=0x5555571cf5d0) = 3737 [pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3737] setpgid(0, 0) = 0 [pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3737] write(3, "1000", 4) = 4 [pid 3737] close(3) = 0 [pid 3737] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3737] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3737] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3737] mkdir("./bus", 000) = -1 EEXIST (File exists) [ 54.360337][ T3734] overlayfs: filesystem on './bus' not supported as upperdir [ 54.378461][ T3735] overlayfs: filesystem on './bus' not supported as upperdir [ 54.396039][ T3736] overlayfs: filesystem on './bus' not supported as upperdir [pid 3737] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3737] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3737] chdir("./bus") = 0 [pid 3737] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3737] exit_group(0) = ? [pid 3737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3738 ./strace-static-x86_64: Process 3738 attached [pid 3738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3738] setpgid(0, 0) = 0 [pid 3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3738] write(3, "1000", 4) = 4 [pid 3738] close(3) = 0 [pid 3738] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3738] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3738] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3738] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3738] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3738] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3738] chdir("./bus") = 0 [pid 3738] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3738] exit_group(0) = ? [pid 3738] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3738, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3739 ./strace-static-x86_64: Process 3739 attached [pid 3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3739] setpgid(0, 0) = 0 [pid 3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3739] write(3, "1000", 4) = 4 [pid 3739] close(3) = 0 [pid 3739] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3739] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3739] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3739] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3739] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3739] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3739] chdir("./bus") = 0 [pid 3739] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3739] exit_group(0) = ? [pid 3739] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3740 ./strace-static-x86_64: Process 3740 attached [pid 3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3740] setpgid(0, 0) = 0 [pid 3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3740] write(3, "1000", 4) = 4 [pid 3740] close(3) = 0 [pid 3740] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3740] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3740] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3740] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3740] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.411928][ T3737] overlayfs: filesystem on './bus' not supported as upperdir [ 54.429256][ T3738] overlayfs: filesystem on './bus' not supported as upperdir [ 54.444981][ T3739] overlayfs: filesystem on './bus' not supported as upperdir [pid 3740] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3740] chdir("./bus") = 0 [pid 3740] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3740] exit_group(0) = ? [pid 3740] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3741 ./strace-static-x86_64: Process 3741 attached [pid 3741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3741] setpgid(0, 0) = 0 [pid 3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3741] write(3, "1000", 4) = 4 [pid 3741] close(3) = 0 [pid 3741] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3741] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3741] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3741] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3741] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3741] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3741] chdir("./bus") = 0 [pid 3741] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3741] exit_group(0) = ? [pid 3741] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3742 ./strace-static-x86_64: Process 3742 attached [pid 3742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3742] setpgid(0, 0) = 0 [pid 3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3742] write(3, "1000", 4) = 4 [pid 3742] close(3) = 0 [pid 3742] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3742] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3742] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3742] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3742] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3742] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3742] chdir("./bus") = 0 [pid 3742] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3742] exit_group(0) = ? [pid 3742] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3743 ./strace-static-x86_64: Process 3743 attached [pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3743] setpgid(0, 0) = 0 [pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3743] write(3, "1000", 4) = 4 [pid 3743] close(3) = 0 [pid 3743] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3743] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3743] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3743] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3743] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.462869][ T3740] overlayfs: filesystem on './bus' not supported as upperdir [ 54.479595][ T3741] overlayfs: filesystem on './bus' not supported as upperdir [ 54.497007][ T3742] overlayfs: filesystem on './bus' not supported as upperdir [pid 3743] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3743] chdir("./bus") = 0 [pid 3743] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3743] exit_group(0) = ? [pid 3743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3744 ./strace-static-x86_64: Process 3744 attached [pid 3744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3744] setpgid(0, 0) = 0 [pid 3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3744] write(3, "1000", 4) = 4 [pid 3744] close(3) = 0 [pid 3744] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3744] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3744] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3744] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3744] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3744] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3744] chdir("./bus") = 0 [pid 3744] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3744] exit_group(0) = ? [pid 3744] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3745 ./strace-static-x86_64: Process 3745 attached [pid 3745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3745] setpgid(0, 0) = 0 [pid 3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3745] write(3, "1000", 4) = 4 [pid 3745] close(3) = 0 [pid 3745] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3745] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3745] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3745] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3745] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3745] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3745] chdir("./bus") = 0 [pid 3745] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3745] exit_group(0) = ? [pid 3745] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3746 attached , child_tidptr=0x5555571cf5d0) = 3746 [pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3746] setpgid(0, 0) = 0 [pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3746] write(3, "1000", 4) = 4 [pid 3746] close(3) = 0 [pid 3746] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3746] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3746] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3746] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3746] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.515099][ T3743] overlayfs: filesystem on './bus' not supported as upperdir [ 54.532191][ T3744] overlayfs: filesystem on './bus' not supported as upperdir [ 54.549139][ T3745] overlayfs: filesystem on './bus' not supported as upperdir [pid 3746] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3746] chdir("./bus") = 0 [pid 3746] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3746] exit_group(0) = ? [pid 3746] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3747 ./strace-static-x86_64: Process 3747 attached [pid 3747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3747] setpgid(0, 0) = 0 [pid 3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3747] write(3, "1000", 4) = 4 [pid 3747] close(3) = 0 [pid 3747] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3747] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3747] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3747] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3747] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3747] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3747] chdir("./bus") = 0 [pid 3747] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3747] exit_group(0) = ? [pid 3747] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3748 ./strace-static-x86_64: Process 3748 attached [pid 3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3748] setpgid(0, 0) = 0 [pid 3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3748] write(3, "1000", 4) = 4 [pid 3748] close(3) = 0 [pid 3748] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3748] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3748] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3748] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3748] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3748] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3748] chdir("./bus") = 0 [pid 3748] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3748] exit_group(0) = ? [pid 3748] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3749 attached , child_tidptr=0x5555571cf5d0) = 3749 [pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3749] setpgid(0, 0) = 0 [pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3749] write(3, "1000", 4) = 4 [pid 3749] close(3) = 0 [pid 3749] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3749] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3749] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3749] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3749] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.564530][ T3746] overlayfs: filesystem on './bus' not supported as upperdir [ 54.582352][ T3747] overlayfs: filesystem on './bus' not supported as upperdir [ 54.598946][ T3748] overlayfs: filesystem on './bus' not supported as upperdir [pid 3749] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3749] chdir("./bus") = 0 [pid 3749] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3749] exit_group(0) = ? [pid 3749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3750 ./strace-static-x86_64: Process 3750 attached [pid 3750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3750] setpgid(0, 0) = 0 [pid 3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3750] write(3, "1000", 4) = 4 [pid 3750] close(3) = 0 [pid 3750] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3750] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3750] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3750] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3750] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3750] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3750] chdir("./bus") = 0 [pid 3750] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3750] exit_group(0) = ? [pid 3750] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3750, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3751 attached , child_tidptr=0x5555571cf5d0) = 3751 [pid 3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3751] setpgid(0, 0) = 0 [pid 3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3751] write(3, "1000", 4) = 4 [pid 3751] close(3) = 0 [pid 3751] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3751] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3751] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3751] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3751] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3751] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3751] chdir("./bus") = 0 [pid 3751] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3751] exit_group(0) = ? [pid 3751] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3752 ./strace-static-x86_64: Process 3752 attached [pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3752] setpgid(0, 0) = 0 [pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3752] write(3, "1000", 4) = 4 [pid 3752] close(3) = 0 [pid 3752] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3752] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3752] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3752] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3752] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.617666][ T3749] overlayfs: filesystem on './bus' not supported as upperdir [ 54.634371][ T3750] overlayfs: filesystem on './bus' not supported as upperdir [ 54.650985][ T3751] overlayfs: filesystem on './bus' not supported as upperdir [pid 3752] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3752] chdir("./bus") = 0 [pid 3752] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3752] exit_group(0) = ? [pid 3752] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3753 ./strace-static-x86_64: Process 3753 attached [pid 3753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3753] setpgid(0, 0) = 0 [pid 3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3753] write(3, "1000", 4) = 4 [pid 3753] close(3) = 0 [pid 3753] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3753] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3753] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3753] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3753] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3753] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3753] chdir("./bus") = 0 [pid 3753] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3753] exit_group(0) = ? [pid 3753] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3754 attached , child_tidptr=0x5555571cf5d0) = 3754 [pid 3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3754] setpgid(0, 0) = 0 [pid 3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3754] write(3, "1000", 4) = 4 [pid 3754] close(3) = 0 [pid 3754] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3754] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3754] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3754] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3754] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3754] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3754] chdir("./bus") = 0 [pid 3754] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3754] exit_group(0) = ? [pid 3754] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3755 attached , child_tidptr=0x5555571cf5d0) = 3755 [pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3755] setpgid(0, 0) = 0 [pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3755] write(3, "1000", 4) = 4 [pid 3755] close(3) = 0 [pid 3755] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3755] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3755] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3755] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3755] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.667306][ T3752] overlayfs: filesystem on './bus' not supported as upperdir [ 54.684488][ T3753] overlayfs: filesystem on './bus' not supported as upperdir [ 54.700760][ T3754] overlayfs: filesystem on './bus' not supported as upperdir [pid 3755] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3755] chdir("./bus") = 0 [pid 3755] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3755] exit_group(0) = ? [pid 3755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3756 ./strace-static-x86_64: Process 3756 attached [pid 3756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3756] setpgid(0, 0) = 0 [pid 3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3756] write(3, "1000", 4) = 4 [pid 3756] close(3) = 0 [pid 3756] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3756] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3756] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3756] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3756] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3756] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3756] chdir("./bus") = 0 [pid 3756] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3756] exit_group(0) = ? [pid 3756] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3757 ./strace-static-x86_64: Process 3757 attached [pid 3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3757] setpgid(0, 0) = 0 [pid 3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3757] write(3, "1000", 4) = 4 [pid 3757] close(3) = 0 [pid 3757] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3757] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3757] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3757] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3757] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3757] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3757] chdir("./bus") = 0 [pid 3757] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3757] exit_group(0) = ? [pid 3757] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3758 attached , child_tidptr=0x5555571cf5d0) = 3758 [pid 3758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3758] setpgid(0, 0) = 0 [pid 3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3758] write(3, "1000", 4) = 4 [pid 3758] close(3) = 0 [pid 3758] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3758] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3758] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3758] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3758] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.717743][ T3755] overlayfs: filesystem on './bus' not supported as upperdir [ 54.736280][ T3756] overlayfs: filesystem on './bus' not supported as upperdir [ 54.751950][ T3757] overlayfs: filesystem on './bus' not supported as upperdir [pid 3758] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3758] chdir("./bus") = 0 [pid 3758] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3758] exit_group(0) = ? [pid 3758] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3758, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3759 ./strace-static-x86_64: Process 3759 attached [pid 3759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3759] setpgid(0, 0) = 0 [pid 3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3759] write(3, "1000", 4) = 4 [pid 3759] close(3) = 0 [pid 3759] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3759] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3759] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3759] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3759] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3759] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3759] chdir("./bus") = 0 [pid 3759] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3759] exit_group(0) = ? [pid 3759] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3759, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3760 ./strace-static-x86_64: Process 3760 attached [pid 3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3760] setpgid(0, 0) = 0 [pid 3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3760] write(3, "1000", 4) = 4 [pid 3760] close(3) = 0 [pid 3760] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3760] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3760] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3760] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3760] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3760] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3760] chdir("./bus") = 0 [pid 3760] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3760] exit_group(0) = ? [pid 3760] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3760, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3761 ./strace-static-x86_64: Process 3761 attached [pid 3761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3761] setpgid(0, 0) = 0 [pid 3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3761] write(3, "1000", 4) = 4 [pid 3761] close(3) = 0 [pid 3761] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3761] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3761] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3761] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3761] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.770328][ T3758] overlayfs: filesystem on './bus' not supported as upperdir [ 54.789157][ T3759] overlayfs: filesystem on './bus' not supported as upperdir [ 54.807277][ T3760] overlayfs: filesystem on './bus' not supported as upperdir [pid 3761] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3761] chdir("./bus") = 0 [pid 3761] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3761] exit_group(0) = ? [pid 3761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3762 ./strace-static-x86_64: Process 3762 attached [pid 3762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3762] setpgid(0, 0) = 0 [pid 3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3762] write(3, "1000", 4) = 4 [pid 3762] close(3) = 0 [pid 3762] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3762] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3762] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3762] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3762] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3762] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3762] chdir("./bus") = 0 [pid 3762] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3762] exit_group(0) = ? [pid 3762] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3762, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3763 ./strace-static-x86_64: Process 3763 attached [pid 3763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3763] setpgid(0, 0) = 0 [pid 3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3763] write(3, "1000", 4) = 4 [pid 3763] close(3) = 0 [pid 3763] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3763] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3763] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3763] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3763] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3763] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3763] chdir("./bus") = 0 [pid 3763] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3763] exit_group(0) = ? [pid 3763] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3764 ./strace-static-x86_64: Process 3764 attached [pid 3764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3764] setpgid(0, 0) = 0 [pid 3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3764] write(3, "1000", 4) = 4 [pid 3764] close(3) = 0 [pid 3764] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3764] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3764] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3764] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3764] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.823606][ T3761] overlayfs: filesystem on './bus' not supported as upperdir [ 54.839858][ T3762] overlayfs: filesystem on './bus' not supported as upperdir [ 54.857153][ T3763] overlayfs: filesystem on './bus' not supported as upperdir [pid 3764] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3764] chdir("./bus") = 0 [pid 3764] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3764] exit_group(0) = ? [pid 3764] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3764, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3765 ./strace-static-x86_64: Process 3765 attached [pid 3765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3765] setpgid(0, 0) = 0 [pid 3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3765] write(3, "1000", 4) = 4 [pid 3765] close(3) = 0 [pid 3765] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3765] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3765] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3765] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3765] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3765] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3765] chdir("./bus") = 0 [pid 3765] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3765] exit_group(0) = ? [pid 3765] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3765, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3766 ./strace-static-x86_64: Process 3766 attached [pid 3766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3766] setpgid(0, 0) = 0 [pid 3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3766] write(3, "1000", 4) = 4 [pid 3766] close(3) = 0 [pid 3766] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3766] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3766] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3766] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3766] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.876326][ T3764] overlayfs: filesystem on './bus' not supported as upperdir [ 54.904015][ T3765] overlayfs: filesystem on './bus' not supported as upperdir [pid 3766] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3766] chdir("./bus") = 0 [pid 3766] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3766] exit_group(0) = ? [pid 3766] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3767 attached , child_tidptr=0x5555571cf5d0) = 3767 [pid 3767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3767] setpgid(0, 0) = 0 [pid 3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3767] write(3, "1000", 4) = 4 [pid 3767] close(3) = 0 [pid 3767] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3767] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3767] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3767] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3767] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3767] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3767] chdir("./bus") = 0 [pid 3767] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3767] exit_group(0) = ? [pid 3767] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3768 attached , child_tidptr=0x5555571cf5d0) = 3768 [pid 3768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3768] setpgid(0, 0) = 0 [pid 3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3768] write(3, "1000", 4) = 4 [pid 3768] close(3) = 0 [pid 3768] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3768] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3768] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3768] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3768] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3768] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3768] chdir("./bus") = 0 [pid 3768] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3768] exit_group(0) = ? [pid 3768] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3768, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3769 ./strace-static-x86_64: Process 3769 attached [pid 3769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3769] setpgid(0, 0) = 0 [pid 3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3769] write(3, "1000", 4) = 4 [pid 3769] close(3) = 0 [pid 3769] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3769] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3769] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3769] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3769] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 54.923549][ T3766] overlayfs: filesystem on './bus' not supported as upperdir [ 54.941522][ T3767] overlayfs: filesystem on './bus' not supported as upperdir [ 54.960021][ T3768] overlayfs: filesystem on './bus' not supported as upperdir [pid 3769] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3769] chdir("./bus") = 0 [pid 3769] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3769] exit_group(0) = ? [pid 3769] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3770 ./strace-static-x86_64: Process 3770 attached [pid 3770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3770] setpgid(0, 0) = 0 [pid 3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3770] write(3, "1000", 4) = 4 [pid 3770] close(3) = 0 [pid 3770] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3770] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3770] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3770] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3770] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3770] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3770] chdir("./bus") = 0 [pid 3770] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3770] exit_group(0) = ? [pid 3770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3771 ./strace-static-x86_64: Process 3771 attached [pid 3771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3771] setpgid(0, 0) = 0 [pid 3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3771] write(3, "1000", 4) = 4 [pid 3771] close(3) = 0 [pid 3771] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3771] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3771] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3771] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3771] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3771] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3771] chdir("./bus") = 0 [pid 3771] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3771] exit_group(0) = ? [pid 3771] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3771, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3772 attached , child_tidptr=0x5555571cf5d0) = 3772 [pid 3772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3772] setpgid(0, 0) = 0 [pid 3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3772] write(3, "1000", 4) = 4 [pid 3772] close(3) = 0 [pid 3772] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3772] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3772] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3772] mkdir("./bus", 000) = -1 EEXIST (File exists) [ 54.977411][ T3769] overlayfs: filesystem on './bus' not supported as upperdir [ 54.996228][ T3770] overlayfs: filesystem on './bus' not supported as upperdir [ 55.013666][ T3771] overlayfs: filesystem on './bus' not supported as upperdir [pid 3772] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3772] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3772] chdir("./bus") = 0 [pid 3772] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3772] exit_group(0) = ? [pid 3772] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3773 ./strace-static-x86_64: Process 3773 attached [pid 3773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3773] setpgid(0, 0) = 0 [pid 3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3773] write(3, "1000", 4) = 4 [pid 3773] close(3) = 0 [pid 3773] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3773] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3773] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3773] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3773] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3773] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3773] chdir("./bus") = 0 [pid 3773] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3773] exit_group(0) = ? [pid 3773] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3774 attached [pid 3774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3774 [pid 3774] <... prctl resumed>) = 0 [pid 3774] setpgid(0, 0) = 0 [pid 3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3774] write(3, "1000", 4) = 4 [pid 3774] close(3) = 0 [pid 3774] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3774] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3774] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3774] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3774] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3774] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3774] chdir("./bus") = 0 [pid 3774] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3774] exit_group(0) = ? [pid 3774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3774, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3775 attached , child_tidptr=0x5555571cf5d0) = 3775 [pid 3775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3775] setpgid(0, 0) = 0 [pid 3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3775] write(3, "1000", 4) = 4 [pid 3775] close(3) = 0 [pid 3775] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3775] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3775] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3775] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3775] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.032388][ T3772] overlayfs: filesystem on './bus' not supported as upperdir [ 55.048907][ T3773] overlayfs: filesystem on './bus' not supported as upperdir [ 55.063935][ T3774] overlayfs: filesystem on './bus' not supported as upperdir [pid 3775] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3775] chdir("./bus") = 0 [pid 3775] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3775] exit_group(0) = ? [pid 3775] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3776 ./strace-static-x86_64: Process 3776 attached [pid 3776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3776] setpgid(0, 0) = 0 [pid 3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3776] write(3, "1000", 4) = 4 [pid 3776] close(3) = 0 [pid 3776] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3776] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3776] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3776] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3776] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3776] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3776] chdir("./bus") = 0 [pid 3776] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3776] exit_group(0) = ? [pid 3776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3777 attached , child_tidptr=0x5555571cf5d0) = 3777 [pid 3777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3777] setpgid(0, 0) = 0 [pid 3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3777] write(3, "1000", 4) = 4 [pid 3777] close(3) = 0 [pid 3777] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3777] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3777] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3777] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3777] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3777] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3777] chdir("./bus") = 0 [pid 3777] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3777] exit_group(0) = ? [pid 3777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3777, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3778 ./strace-static-x86_64: Process 3778 attached [pid 3778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3778] setpgid(0, 0) = 0 [pid 3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3778] write(3, "1000", 4) = 4 [pid 3778] close(3) = 0 [pid 3778] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3778] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3778] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3778] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3778] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.080701][ T3775] overlayfs: filesystem on './bus' not supported as upperdir [ 55.095727][ T3776] overlayfs: filesystem on './bus' not supported as upperdir [ 55.112808][ T3777] overlayfs: filesystem on './bus' not supported as upperdir [pid 3778] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3778] chdir("./bus") = 0 [pid 3778] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3778] exit_group(0) = ? [pid 3778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3779 attached , child_tidptr=0x5555571cf5d0) = 3779 [pid 3779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3779] setpgid(0, 0) = 0 [pid 3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3779] write(3, "1000", 4) = 4 [pid 3779] close(3) = 0 [pid 3779] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3779] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3779] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3779] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3779] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3779] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3779] chdir("./bus") = 0 [pid 3779] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3779] exit_group(0) = ? [pid 3779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3780 ./strace-static-x86_64: Process 3780 attached [pid 3780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3780] setpgid(0, 0) = 0 [pid 3780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3780] write(3, "1000", 4) = 4 [pid 3780] close(3) = 0 [pid 3780] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3780] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3780] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3780] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3780] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3780] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3780] chdir("./bus") = 0 [pid 3780] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3780] exit_group(0) = ? [pid 3780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3780, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3781 attached , child_tidptr=0x5555571cf5d0) = 3781 [pid 3781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3781] setpgid(0, 0) = 0 [pid 3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3781] write(3, "1000", 4) = 4 [pid 3781] close(3) = 0 [pid 3781] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3781] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3781] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3781] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3781] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.130259][ T3778] overlayfs: filesystem on './bus' not supported as upperdir [ 55.146993][ T3779] overlayfs: filesystem on './bus' not supported as upperdir [ 55.164140][ T3780] overlayfs: filesystem on './bus' not supported as upperdir [pid 3781] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3781] chdir("./bus") = 0 [pid 3781] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3781] exit_group(0) = ? [pid 3781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3782 ./strace-static-x86_64: Process 3782 attached [pid 3782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3782] setpgid(0, 0) = 0 [pid 3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3782] write(3, "1000", 4) = 4 [pid 3782] close(3) = 0 [pid 3782] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3782] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3782] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3782] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3782] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3782] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3782] chdir("./bus") = 0 [pid 3782] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3782] exit_group(0) = ? [pid 3782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3782, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3783 attached , child_tidptr=0x5555571cf5d0) = 3783 [pid 3783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3783] setpgid(0, 0) = 0 [pid 3783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3783] write(3, "1000", 4) = 4 [pid 3783] close(3) = 0 [pid 3783] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3783] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3783] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3783] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3783] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3783] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3783] chdir("./bus") = 0 [pid 3783] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3783] exit_group(0) = ? [pid 3783] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3783, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3784 attached [pid 3784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3784] setpgid(0, 0) = 0 [pid 3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3784 [pid 3784] <... openat resumed>) = 3 [pid 3784] write(3, "1000", 4) = 4 [pid 3784] close(3) = 0 [pid 3784] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3784] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3784] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3784] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3784] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.185388][ T3781] overlayfs: filesystem on './bus' not supported as upperdir [ 55.204011][ T3782] overlayfs: filesystem on './bus' not supported as upperdir [ 55.221236][ T3783] overlayfs: filesystem on './bus' not supported as upperdir [pid 3784] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3784] chdir("./bus") = 0 [pid 3784] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3784] exit_group(0) = ? [pid 3784] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3784, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3785 ./strace-static-x86_64: Process 3785 attached [pid 3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3785] setpgid(0, 0) = 0 [pid 3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3785] write(3, "1000", 4) = 4 [pid 3785] close(3) = 0 [pid 3785] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3785] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3785] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3785] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3785] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3785] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3785] chdir("./bus") = 0 [pid 3785] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3785] exit_group(0) = ? [pid 3785] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3785, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3786 attached , child_tidptr=0x5555571cf5d0) = 3786 [pid 3786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3786] setpgid(0, 0) = 0 [pid 3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3786] write(3, "1000", 4) = 4 [pid 3786] close(3) = 0 [pid 3786] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3786] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3786] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3786] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3786] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3786] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3786] chdir("./bus") = 0 [pid 3786] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3786] exit_group(0) = ? [pid 3786] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3786, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3787 ./strace-static-x86_64: Process 3787 attached [pid 3787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3787] setpgid(0, 0) = 0 [pid 3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3787] write(3, "1000", 4) = 4 [pid 3787] close(3) = 0 [pid 3787] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3787] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3787] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3787] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3787] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.240324][ T3784] overlayfs: filesystem on './bus' not supported as upperdir [ 55.258001][ T3785] overlayfs: filesystem on './bus' not supported as upperdir [ 55.274685][ T3786] overlayfs: filesystem on './bus' not supported as upperdir [pid 3787] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3787] chdir("./bus") = 0 [pid 3787] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3787] exit_group(0) = ? [pid 3787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3787, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3788 ./strace-static-x86_64: Process 3788 attached [pid 3788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3788] setpgid(0, 0) = 0 [pid 3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3788] write(3, "1000", 4) = 4 [pid 3788] close(3) = 0 [pid 3788] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3788] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3788] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3788] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3788] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3788] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3788] chdir("./bus") = 0 [pid 3788] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3788] exit_group(0) = ? [pid 3788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3788, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3789 ./strace-static-x86_64: Process 3789 attached [pid 3789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3789] setpgid(0, 0) = 0 [pid 3789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3789] write(3, "1000", 4) = 4 [pid 3789] close(3) = 0 [pid 3789] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3789] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3789] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3789] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3789] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3789] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3789] chdir("./bus") = 0 [pid 3789] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3789] exit_group(0) = ? [pid 3789] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3789, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3790 attached , child_tidptr=0x5555571cf5d0) = 3790 [pid 3790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3790] setpgid(0, 0) = 0 [pid 3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3790] write(3, "1000", 4) = 4 [pid 3790] close(3) = 0 [pid 3790] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3790] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3790] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3790] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3790] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.290098][ T3787] overlayfs: filesystem on './bus' not supported as upperdir [ 55.307377][ T3788] overlayfs: filesystem on './bus' not supported as upperdir [ 55.324277][ T3789] overlayfs: filesystem on './bus' not supported as upperdir [pid 3790] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3790] chdir("./bus") = 0 [pid 3790] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3790] exit_group(0) = ? [pid 3790] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3790, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3791 ./strace-static-x86_64: Process 3791 attached [pid 3791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3791] setpgid(0, 0) = 0 [pid 3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3791] write(3, "1000", 4) = 4 [pid 3791] close(3) = 0 [pid 3791] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3791] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3791] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3791] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3791] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3791] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3791] chdir("./bus") = 0 [pid 3791] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3791] exit_group(0) = ? [pid 3791] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3791, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3792 ./strace-static-x86_64: Process 3792 attached [pid 3792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3792] setpgid(0, 0) = 0 [pid 3792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3792] write(3, "1000", 4) = 4 [pid 3792] close(3) = 0 [pid 3792] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3792] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3792] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3792] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3792] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3792] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3792] chdir("./bus") = 0 [pid 3792] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3792] exit_group(0) = ? [pid 3792] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3792, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3793 ./strace-static-x86_64: Process 3793 attached [pid 3793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3793] setpgid(0, 0) = 0 [pid 3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3793] write(3, "1000", 4) = 4 [pid 3793] close(3) = 0 [pid 3793] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3793] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3793] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3793] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3793] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.340406][ T3790] overlayfs: filesystem on './bus' not supported as upperdir [ 55.356853][ T3791] overlayfs: filesystem on './bus' not supported as upperdir [ 55.372094][ T3792] overlayfs: filesystem on './bus' not supported as upperdir [pid 3793] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3793] chdir("./bus") = 0 [pid 3793] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3793] exit_group(0) = ? [pid 3793] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3793, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3794 ./strace-static-x86_64: Process 3794 attached [pid 3794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3794] setpgid(0, 0) = 0 [pid 3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3794] write(3, "1000", 4) = 4 [pid 3794] close(3) = 0 [pid 3794] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3794] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3794] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3794] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3794] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3794] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3794] chdir("./bus") = 0 [pid 3794] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3794] exit_group(0) = ? [pid 3794] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3794, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3795 ./strace-static-x86_64: Process 3795 attached [pid 3795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3795] setpgid(0, 0) = 0 [pid 3795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3795] write(3, "1000", 4) = 4 [pid 3795] close(3) = 0 [pid 3795] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3795] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3795] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3795] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3795] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3795] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3795] chdir("./bus") = 0 [pid 3795] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3795] exit_group(0) = ? [pid 3795] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3795, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3796 attached , child_tidptr=0x5555571cf5d0) = 3796 [pid 3796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3796] setpgid(0, 0) = 0 [pid 3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3796] write(3, "1000", 4) = 4 [pid 3796] close(3) = 0 [pid 3796] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3796] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3796] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3796] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3796] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.391459][ T3793] overlayfs: filesystem on './bus' not supported as upperdir [ 55.408070][ T3794] overlayfs: filesystem on './bus' not supported as upperdir [ 55.426313][ T3795] overlayfs: filesystem on './bus' not supported as upperdir [pid 3796] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3796] chdir("./bus") = 0 [pid 3796] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3796] exit_group(0) = ? [pid 3796] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3796, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3797 ./strace-static-x86_64: Process 3797 attached [pid 3797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3797] setpgid(0, 0) = 0 [pid 3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3797] write(3, "1000", 4) = 4 [pid 3797] close(3) = 0 [pid 3797] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3797] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3797] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3797] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3797] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3797] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3797] chdir("./bus") = 0 [pid 3797] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3797] exit_group(0) = ? [pid 3797] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3797, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3798 ./strace-static-x86_64: Process 3798 attached [pid 3798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3798] setpgid(0, 0) = 0 [pid 3798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3798] write(3, "1000", 4) = 4 [pid 3798] close(3) = 0 [pid 3798] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3798] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3798] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3798] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3798] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3798] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3798] chdir("./bus") = 0 [pid 3798] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3798] exit_group(0) = ? [pid 3798] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3798, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3799 ./strace-static-x86_64: Process 3799 attached [pid 3799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3799] setpgid(0, 0) = 0 [pid 3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3799] write(3, "1000", 4) = 4 [pid 3799] close(3) = 0 [pid 3799] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3799] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3799] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3799] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3799] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.445718][ T3796] overlayfs: filesystem on './bus' not supported as upperdir [ 55.462743][ T3797] overlayfs: filesystem on './bus' not supported as upperdir [ 55.479048][ T3798] overlayfs: filesystem on './bus' not supported as upperdir [pid 3799] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3799] chdir("./bus") = 0 [pid 3799] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3799] exit_group(0) = ? [pid 3799] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3799, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3800 ./strace-static-x86_64: Process 3800 attached [pid 3800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3800] setpgid(0, 0) = 0 [pid 3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3800] write(3, "1000", 4) = 4 [pid 3800] close(3) = 0 [pid 3800] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3800] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3800] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3800] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3800] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3800] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3800] chdir("./bus") = 0 [pid 3800] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3800] exit_group(0) = ? [pid 3800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3800, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3801 ./strace-static-x86_64: Process 3801 attached [pid 3801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3801] setpgid(0, 0) = 0 [pid 3801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3801] write(3, "1000", 4) = 4 [pid 3801] close(3) = 0 [pid 3801] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3801] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3801] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3801] mkdir("./bus", 000) = -1 EEXIST (File exists) [ 55.494637][ T3799] overlayfs: filesystem on './bus' not supported as upperdir [ 55.511677][ T3800] overlayfs: filesystem on './bus' not supported as upperdir [pid 3801] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3801] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3801] chdir("./bus") = 0 [pid 3801] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3801] exit_group(0) = ? [pid 3801] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3801, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3802 ./strace-static-x86_64: Process 3802 attached [pid 3802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3802] setpgid(0, 0) = 0 [pid 3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3802] write(3, "1000", 4) = 4 [pid 3802] close(3) = 0 [pid 3802] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3802] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3802] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3802] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3802] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3802] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3802] chdir("./bus") = 0 [pid 3802] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3802] exit_group(0) = ? [pid 3802] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3802, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3803 ./strace-static-x86_64: Process 3803 attached [pid 3803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3803] setpgid(0, 0) = 0 [pid 3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3803] write(3, "1000", 4) = 4 [pid 3803] close(3) = 0 [pid 3803] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3803] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3803] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3803] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3803] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3803] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3803] chdir("./bus") = 0 [pid 3803] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3803] exit_group(0) = ? [pid 3803] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3803, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3804 ./strace-static-x86_64: Process 3804 attached [pid 3804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3804] setpgid(0, 0) = 0 [pid 3804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3804] write(3, "1000", 4) = 4 [pid 3804] close(3) = 0 [pid 3804] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3804] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3804] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3804] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3804] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.539134][ T3801] overlayfs: filesystem on './bus' not supported as upperdir [ 55.560261][ T3802] overlayfs: filesystem on './bus' not supported as upperdir [ 55.577247][ T3803] overlayfs: filesystem on './bus' not supported as upperdir [pid 3804] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3804] chdir("./bus") = 0 [pid 3804] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3804] exit_group(0) = ? [pid 3804] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3804, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3805 ./strace-static-x86_64: Process 3805 attached [pid 3805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3805] setpgid(0, 0) = 0 [pid 3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3805] write(3, "1000", 4) = 4 [pid 3805] close(3) = 0 [pid 3805] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3805] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3805] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3805] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3805] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3805] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3805] chdir("./bus") = 0 [pid 3805] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3805] exit_group(0) = ? [pid 3805] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3805, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3806 ./strace-static-x86_64: Process 3806 attached [pid 3806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3806] setpgid(0, 0) = 0 [pid 3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3806] write(3, "1000", 4) = 4 [pid 3806] close(3) = 0 [pid 3806] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3806] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3806] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3806] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3806] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3806] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3806] chdir("./bus") = 0 [pid 3806] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3806] exit_group(0) = ? [pid 3806] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3806, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3807 ./strace-static-x86_64: Process 3807 attached [pid 3807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3807] setpgid(0, 0) = 0 [pid 3807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3807] write(3, "1000", 4) = 4 [pid 3807] close(3) = 0 [pid 3807] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3807] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3807] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3807] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3807] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.595267][ T3804] overlayfs: filesystem on './bus' not supported as upperdir [ 55.611573][ T3805] overlayfs: filesystem on './bus' not supported as upperdir [ 55.627493][ T3806] overlayfs: filesystem on './bus' not supported as upperdir [pid 3807] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3807] chdir("./bus") = 0 [pid 3807] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3807] exit_group(0) = ? [pid 3807] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3807, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3808 attached , child_tidptr=0x5555571cf5d0) = 3808 [pid 3808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3808] setpgid(0, 0) = 0 [pid 3808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3808] write(3, "1000", 4) = 4 [pid 3808] close(3) = 0 [pid 3808] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3808] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3808] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3808] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3808] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3808] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3808] chdir("./bus") = 0 [pid 3808] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3808] exit_group(0) = ? [pid 3808] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3808, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3809 attached , child_tidptr=0x5555571cf5d0) = 3809 [pid 3809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3809] setpgid(0, 0) = 0 [pid 3809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3809] write(3, "1000", 4) = 4 [pid 3809] close(3) = 0 [pid 3809] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3809] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3809] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3809] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3809] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3809] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3809] chdir("./bus") = 0 [pid 3809] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3809] exit_group(0) = ? [pid 3809] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3809, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3810 attached , child_tidptr=0x5555571cf5d0) = 3810 [pid 3810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3810] setpgid(0, 0) = 0 [pid 3810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3810] write(3, "1000", 4) = 4 [pid 3810] close(3) = 0 [pid 3810] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3810] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3810] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3810] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3810] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.643255][ T3807] overlayfs: filesystem on './bus' not supported as upperdir [ 55.659316][ T3808] overlayfs: filesystem on './bus' not supported as upperdir [ 55.675659][ T3809] overlayfs: filesystem on './bus' not supported as upperdir [pid 3810] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3810] chdir("./bus") = 0 [pid 3810] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3810] exit_group(0) = ? [pid 3810] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3810, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3811 ./strace-static-x86_64: Process 3811 attached [pid 3811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3811] setpgid(0, 0) = 0 [pid 3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3811] write(3, "1000", 4) = 4 [pid 3811] close(3) = 0 [pid 3811] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3811] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3811] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3811] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3811] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3811] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3811] chdir("./bus") = 0 [pid 3811] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3811] exit_group(0) = ? [pid 3811] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3811, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3812 ./strace-static-x86_64: Process 3812 attached [pid 3812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3812] setpgid(0, 0) = 0 [pid 3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3812] write(3, "1000", 4) = 4 [pid 3812] close(3) = 0 [pid 3812] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3812] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3812] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3812] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3812] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3812] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3812] chdir("./bus") = 0 [pid 3812] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3812] exit_group(0) = ? [pid 3812] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3812, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3813 ./strace-static-x86_64: Process 3813 attached [pid 3813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3813] setpgid(0, 0) = 0 [pid 3813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3813] write(3, "1000", 4) = 4 [pid 3813] close(3) = 0 [pid 3813] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3813] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3813] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3813] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3813] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.693858][ T3810] overlayfs: filesystem on './bus' not supported as upperdir [ 55.710140][ T3811] overlayfs: filesystem on './bus' not supported as upperdir [ 55.728621][ T3812] overlayfs: filesystem on './bus' not supported as upperdir [pid 3813] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3813] chdir("./bus") = 0 [pid 3813] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3813] exit_group(0) = ? [pid 3813] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3813, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3814 ./strace-static-x86_64: Process 3814 attached [pid 3814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3814] setpgid(0, 0) = 0 [pid 3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3814] write(3, "1000", 4) = 4 [pid 3814] close(3) = 0 [pid 3814] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3814] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3814] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3814] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3814] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3814] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3814] chdir("./bus") = 0 [pid 3814] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3814] exit_group(0) = ? [pid 3814] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3814, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3815 ./strace-static-x86_64: Process 3815 attached [pid 3815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3815] setpgid(0, 0) = 0 [pid 3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3815] write(3, "1000", 4) = 4 [pid 3815] close(3) = 0 [pid 3815] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3815] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3815] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3815] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3815] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.745520][ T3813] overlayfs: filesystem on './bus' not supported as upperdir [ 55.774677][ T3814] overlayfs: filesystem on './bus' not supported as upperdir [pid 3815] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3815] chdir("./bus") = 0 [pid 3815] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3815] exit_group(0) = ? [pid 3815] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3815, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3816 ./strace-static-x86_64: Process 3816 attached [pid 3816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3816] setpgid(0, 0) = 0 [pid 3816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3816] write(3, "1000", 4) = 4 [pid 3816] close(3) = 0 [pid 3816] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3816] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3816] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3816] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3816] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3816] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3816] chdir("./bus") = 0 [pid 3816] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3816] exit_group(0) = ? [pid 3816] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3816, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3817 ./strace-static-x86_64: Process 3817 attached [pid 3817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3817] setpgid(0, 0) = 0 [pid 3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3817] write(3, "1000", 4) = 4 [pid 3817] close(3) = 0 [pid 3817] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3817] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3817] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3817] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3817] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3817] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3817] chdir("./bus") = 0 [pid 3817] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3817] exit_group(0) = ? [pid 3817] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3817, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3818 ./strace-static-x86_64: Process 3818 attached [pid 3818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3818] setpgid(0, 0) = 0 [pid 3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3818] write(3, "1000", 4) = 4 [pid 3818] close(3) = 0 [pid 3818] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3818] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3818] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3818] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3818] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.790596][ T3815] overlayfs: filesystem on './bus' not supported as upperdir [ 55.808462][ T3816] overlayfs: filesystem on './bus' not supported as upperdir [ 55.824618][ T3817] overlayfs: filesystem on './bus' not supported as upperdir [pid 3818] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3818] chdir("./bus") = 0 [pid 3818] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3818] exit_group(0) = ? [pid 3818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3818, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3819 ./strace-static-x86_64: Process 3819 attached [pid 3819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3819] setpgid(0, 0) = 0 [pid 3819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3819] write(3, "1000", 4) = 4 [pid 3819] close(3) = 0 [pid 3819] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3819] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3819] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3819] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3819] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3819] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3819] chdir("./bus") = 0 [pid 3819] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3819] exit_group(0) = ? [pid 3819] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3819, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3820 ./strace-static-x86_64: Process 3820 attached [pid 3820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3820] setpgid(0, 0) = 0 [pid 3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3820] write(3, "1000", 4) = 4 [pid 3820] close(3) = 0 [pid 3820] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3820] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3820] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3820] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3820] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3820] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3820] chdir("./bus") = 0 [pid 3820] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3820] exit_group(0) = ? [pid 3820] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3820, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3821 ./strace-static-x86_64: Process 3821 attached [pid 3821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3821] setpgid(0, 0) = 0 [pid 3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3821] write(3, "1000", 4) = 4 [pid 3821] close(3) = 0 [pid 3821] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3821] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3821] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3821] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3821] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.842599][ T3818] overlayfs: filesystem on './bus' not supported as upperdir [ 55.858100][ T3819] overlayfs: filesystem on './bus' not supported as upperdir [ 55.874591][ T3820] overlayfs: filesystem on './bus' not supported as upperdir [pid 3821] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3821] chdir("./bus") = 0 [pid 3821] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3821] exit_group(0) = ? [pid 3821] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3821, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3822 ./strace-static-x86_64: Process 3822 attached [pid 3822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3822] setpgid(0, 0) = 0 [pid 3822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3822] write(3, "1000", 4) = 4 [pid 3822] close(3) = 0 [pid 3822] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3822] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3822] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3822] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3822] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3822] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3822] chdir("./bus") = 0 [pid 3822] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3822] exit_group(0) = ? [pid 3822] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3822, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3823 attached , child_tidptr=0x5555571cf5d0) = 3823 [pid 3823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3823] setpgid(0, 0) = 0 [pid 3823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3823] write(3, "1000", 4) = 4 [pid 3823] close(3) = 0 [pid 3823] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3823] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3823] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3823] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3823] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3823] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3823] chdir("./bus") = 0 [pid 3823] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3823] exit_group(0) = ? [pid 3823] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3823, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3824 ./strace-static-x86_64: Process 3824 attached [pid 3824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3824] setpgid(0, 0) = 0 [pid 3824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3824] write(3, "1000", 4) = 4 [pid 3824] close(3) = 0 [pid 3824] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3824] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3824] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3824] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3824] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.893483][ T3821] overlayfs: filesystem on './bus' not supported as upperdir [ 55.910373][ T3822] overlayfs: filesystem on './bus' not supported as upperdir [ 55.929469][ T3823] overlayfs: filesystem on './bus' not supported as upperdir [pid 3824] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3824] chdir("./bus") = 0 [pid 3824] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3824] exit_group(0) = ? [pid 3824] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3824, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3825 ./strace-static-x86_64: Process 3825 attached [pid 3825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3825] setpgid(0, 0) = 0 [pid 3825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3825] write(3, "1000", 4) = 4 [pid 3825] close(3) = 0 [pid 3825] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3825] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3825] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3825] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3825] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3825] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3825] chdir("./bus") = 0 [pid 3825] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3825] exit_group(0) = ? [pid 3825] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3825, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3826 attached , child_tidptr=0x5555571cf5d0) = 3826 [pid 3826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3826] setpgid(0, 0) = 0 [pid 3826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3826] write(3, "1000", 4) = 4 [pid 3826] close(3) = 0 [pid 3826] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3826] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3826] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3826] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3826] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3826] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3826] chdir("./bus") = 0 [pid 3826] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3826] exit_group(0) = ? [pid 3826] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3826, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3827 ./strace-static-x86_64: Process 3827 attached [pid 3827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3827] setpgid(0, 0) = 0 [pid 3827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3827] write(3, "1000", 4) = 4 [pid 3827] close(3) = 0 [pid 3827] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3827] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3827] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3827] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3827] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.948136][ T3824] overlayfs: filesystem on './bus' not supported as upperdir [ 55.964869][ T3825] overlayfs: filesystem on './bus' not supported as upperdir [ 55.982084][ T3826] overlayfs: filesystem on './bus' not supported as upperdir [pid 3827] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3827] chdir("./bus") = 0 [pid 3827] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3827] exit_group(0) = ? [pid 3827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3827, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3828 ./strace-static-x86_64: Process 3828 attached [pid 3828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3828] setpgid(0, 0) = 0 [pid 3828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3828] write(3, "1000", 4) = 4 [pid 3828] close(3) = 0 [pid 3828] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3828] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3828] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3828] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3828] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3828] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3828] chdir("./bus") = 0 [pid 3828] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3828] exit_group(0) = ? [pid 3828] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3828, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3829 attached , child_tidptr=0x5555571cf5d0) = 3829 [pid 3829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3829] setpgid(0, 0) = 0 [pid 3829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3829] write(3, "1000", 4) = 4 [pid 3829] close(3) = 0 [pid 3829] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3829] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3829] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3829] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3829] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3829] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3829] chdir("./bus") = 0 [pid 3829] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3829] exit_group(0) = ? [pid 3829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3829, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3830 ./strace-static-x86_64: Process 3830 attached [pid 3830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3830] setpgid(0, 0) = 0 [pid 3830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3830] write(3, "1000", 4) = 4 [pid 3830] close(3) = 0 [pid 3830] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3830] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3830] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3830] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3830] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 55.998436][ T3827] overlayfs: filesystem on './bus' not supported as upperdir [ 56.017562][ T3828] overlayfs: filesystem on './bus' not supported as upperdir [ 56.036061][ T3829] overlayfs: filesystem on './bus' not supported as upperdir [pid 3830] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3830] chdir("./bus") = 0 [pid 3830] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3830] exit_group(0) = ? [pid 3830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3830, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3831 ./strace-static-x86_64: Process 3831 attached [pid 3831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3831] setpgid(0, 0) = 0 [pid 3831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3831] write(3, "1000", 4) = 4 [pid 3831] close(3) = 0 [pid 3831] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3831] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3831] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3831] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3831] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3831] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3831] chdir("./bus") = 0 [pid 3831] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3831] exit_group(0) = ? [pid 3831] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3831, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3832 attached , child_tidptr=0x5555571cf5d0) = 3832 [pid 3832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3832] setpgid(0, 0) = 0 [pid 3832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3832] write(3, "1000", 4) = 4 [pid 3832] close(3) = 0 [pid 3832] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3832] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3832] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3832] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3832] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3832] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3832] chdir("./bus") = 0 [pid 3832] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3832] exit_group(0) = ? [pid 3832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3832, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3833 ./strace-static-x86_64: Process 3833 attached [pid 3833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3833] setpgid(0, 0) = 0 [pid 3833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3833] write(3, "1000", 4) = 4 [pid 3833] close(3) = 0 [pid 3833] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3833] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3833] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3833] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3833] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.053864][ T3830] overlayfs: filesystem on './bus' not supported as upperdir [ 56.072926][ T3831] overlayfs: filesystem on './bus' not supported as upperdir [ 56.090737][ T3832] overlayfs: filesystem on './bus' not supported as upperdir [pid 3833] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3833] chdir("./bus") = 0 [pid 3833] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3833] exit_group(0) = ? [pid 3833] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3833, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3834 attached , child_tidptr=0x5555571cf5d0) = 3834 [pid 3834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3834] setpgid(0, 0) = 0 [pid 3834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3834] write(3, "1000", 4) = 4 [pid 3834] close(3) = 0 [pid 3834] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3834] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3834] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3834] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3834] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3834] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3834] chdir("./bus") = 0 [pid 3834] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3834] exit_group(0) = ? [pid 3834] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3834, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3835 attached , child_tidptr=0x5555571cf5d0) = 3835 [pid 3835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3835] setpgid(0, 0) = 0 [pid 3835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3835] write(3, "1000", 4) = 4 [pid 3835] close(3) = 0 [pid 3835] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3835] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3835] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3835] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3835] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3835] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3835] chdir("./bus") = 0 [pid 3835] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3835] exit_group(0) = ? [pid 3835] +++ exited with 0 +++ [ 56.107635][ T3833] overlayfs: filesystem on './bus' not supported as upperdir [ 56.123999][ T3834] overlayfs: filesystem on './bus' not supported as upperdir [ 56.141165][ T3835] overlayfs: filesystem on './bus' not supported as upperdir --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3835, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3836 ./strace-static-x86_64: Process 3836 attached [pid 3836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3836] setpgid(0, 0) = 0 [pid 3836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3836] write(3, "1000", 4) = 4 [pid 3836] close(3) = 0 [pid 3836] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3836] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3836] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3836] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3836] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3836] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3836] chdir("./bus") = 0 [pid 3836] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3836] exit_group(0) = ? [pid 3836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3836, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3837 attached , child_tidptr=0x5555571cf5d0) = 3837 [pid 3837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3837] setpgid(0, 0) = 0 [pid 3837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3837] write(3, "1000", 4) = 4 [pid 3837] close(3) = 0 [pid 3837] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3837] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3837] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3837] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3837] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3837] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3837] chdir("./bus") = 0 [pid 3837] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3837] exit_group(0) = ? [pid 3837] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3837, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3838 ./strace-static-x86_64: Process 3838 attached [pid 3838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3838] setpgid(0, 0) = 0 [pid 3838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3838] write(3, "1000", 4) = 4 [pid 3838] close(3) = 0 [pid 3838] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3838] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3838] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3838] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3838] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3838] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3838] chdir("./bus") = 0 [pid 3838] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3838] exit_group(0) = ? [pid 3838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3838, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3839 ./strace-static-x86_64: Process 3839 attached [pid 3839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3839] setpgid(0, 0) = 0 [pid 3839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3839] write(3, "1000", 4) = 4 [pid 3839] close(3) = 0 [pid 3839] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3839] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3839] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3839] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3839] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.159653][ T3836] overlayfs: filesystem on './bus' not supported as upperdir [ 56.176960][ T3837] overlayfs: filesystem on './bus' not supported as upperdir [ 56.192961][ T3838] overlayfs: filesystem on './bus' not supported as upperdir [pid 3839] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3839] chdir("./bus") = 0 [pid 3839] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3839] exit_group(0) = ? [pid 3839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3839, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3840 attached , child_tidptr=0x5555571cf5d0) = 3840 [pid 3840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3840] setpgid(0, 0) = 0 [pid 3840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3840] write(3, "1000", 4) = 4 [pid 3840] close(3) = 0 [pid 3840] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3840] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3840] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3840] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3840] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3840] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3840] chdir("./bus") = 0 [pid 3840] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3840] exit_group(0) = ? [pid 3840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3840, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3841 ./strace-static-x86_64: Process 3841 attached [pid 3841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3841] setpgid(0, 0) = 0 [pid 3841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3841] write(3, "1000", 4) = 4 [pid 3841] close(3) = 0 [pid 3841] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3841] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3841] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3841] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3841] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3841] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3841] chdir("./bus") = 0 [pid 3841] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3841] exit_group(0) = ? [pid 3841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3841, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3842 ./strace-static-x86_64: Process 3842 attached [pid 3842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3842] setpgid(0, 0) = 0 [pid 3842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3842] write(3, "1000", 4) = 4 [pid 3842] close(3) = 0 [pid 3842] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3842] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3842] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3842] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3842] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.210785][ T3839] overlayfs: filesystem on './bus' not supported as upperdir [ 56.232140][ T3840] overlayfs: filesystem on './bus' not supported as upperdir [ 56.248227][ T3841] overlayfs: filesystem on './bus' not supported as upperdir [pid 3842] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3842] chdir("./bus") = 0 [pid 3842] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3842] exit_group(0) = ? [pid 3842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3842, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3843 attached , child_tidptr=0x5555571cf5d0) = 3843 [pid 3843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3843] setpgid(0, 0) = 0 [pid 3843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3843] write(3, "1000", 4) = 4 [pid 3843] close(3) = 0 [pid 3843] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3843] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3843] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3843] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3843] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3843] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3843] chdir("./bus") = 0 [pid 3843] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3843] exit_group(0) = ? [pid 3843] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3843, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3844 ./strace-static-x86_64: Process 3844 attached [pid 3844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3844] setpgid(0, 0) = 0 [pid 3844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3844] write(3, "1000", 4) = 4 [pid 3844] close(3) = 0 [pid 3844] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3844] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3844] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3844] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3844] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3844] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3844] chdir("./bus") = 0 [pid 3844] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3844] exit_group(0) = ? [pid 3844] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3844, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3845 ./strace-static-x86_64: Process 3845 attached [pid 3845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3845] setpgid(0, 0) = 0 [pid 3845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3845] write(3, "1000", 4) = 4 [pid 3845] close(3) = 0 [pid 3845] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3845] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3845] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3845] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3845] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.264788][ T3842] overlayfs: filesystem on './bus' not supported as upperdir [ 56.281021][ T3843] overlayfs: filesystem on './bus' not supported as upperdir [ 56.297507][ T3844] overlayfs: filesystem on './bus' not supported as upperdir [pid 3845] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3845] chdir("./bus") = 0 [pid 3845] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3845] exit_group(0) = ? [pid 3845] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3845, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3846 attached , child_tidptr=0x5555571cf5d0) = 3846 [pid 3846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3846] setpgid(0, 0) = 0 [pid 3846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3846] write(3, "1000", 4) = 4 [pid 3846] close(3) = 0 [pid 3846] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3846] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3846] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3846] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3846] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3846] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3846] chdir("./bus") = 0 [pid 3846] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3846] exit_group(0) = ? [pid 3846] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3846, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3847 ./strace-static-x86_64: Process 3847 attached [pid 3847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3847] setpgid(0, 0) = 0 [pid 3847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3847] write(3, "1000", 4) = 4 [pid 3847] close(3) = 0 [pid 3847] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3847] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3847] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3847] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3847] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3847] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3847] chdir("./bus") = 0 [pid 3847] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3847] exit_group(0) = ? [pid 3847] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3847, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3848 ./strace-static-x86_64: Process 3848 attached [pid 3848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3848] setpgid(0, 0) = 0 [pid 3848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3848] write(3, "1000", 4) = 4 [pid 3848] close(3) = 0 [pid 3848] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3848] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3848] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3848] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3848] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.315664][ T3845] overlayfs: filesystem on './bus' not supported as upperdir [ 56.330931][ T3846] overlayfs: filesystem on './bus' not supported as upperdir [ 56.346261][ T3847] overlayfs: filesystem on './bus' not supported as upperdir [pid 3848] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3848] chdir("./bus") = 0 [pid 3848] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3848] exit_group(0) = ? [pid 3848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3848, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3849 ./strace-static-x86_64: Process 3849 attached [pid 3849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3849] setpgid(0, 0) = 0 [pid 3849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3849] write(3, "1000", 4) = 4 [pid 3849] close(3) = 0 [pid 3849] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3849] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3849] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3849] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3849] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3849] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3849] chdir("./bus") = 0 [pid 3849] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3849] exit_group(0) = ? [pid 3849] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3849, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3850 attached , child_tidptr=0x5555571cf5d0) = 3850 [pid 3850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3850] setpgid(0, 0) = 0 [pid 3850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3850] write(3, "1000", 4) = 4 [pid 3850] close(3) = 0 [pid 3850] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3850] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3850] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3850] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3850] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3850] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3850] chdir("./bus") = 0 [pid 3850] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3850] exit_group(0) = ? [pid 3850] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3850, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3851 attached , child_tidptr=0x5555571cf5d0) = 3851 [pid 3851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3851] setpgid(0, 0) = 0 [pid 3851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3851] write(3, "1000", 4) = 4 [pid 3851] close(3) = 0 [pid 3851] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3851] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3851] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3851] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3851] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.363718][ T3848] overlayfs: filesystem on './bus' not supported as upperdir [ 56.380590][ T3849] overlayfs: filesystem on './bus' not supported as upperdir [ 56.396082][ T3850] overlayfs: filesystem on './bus' not supported as upperdir [pid 3851] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3851] chdir("./bus") = 0 [pid 3851] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3851] exit_group(0) = ? [pid 3851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3851, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3852 ./strace-static-x86_64: Process 3852 attached [pid 3852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3852] setpgid(0, 0) = 0 [pid 3852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3852] write(3, "1000", 4) = 4 [pid 3852] close(3) = 0 [pid 3852] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3852] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3852] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3852] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3852] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3852] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3852] chdir("./bus") = 0 [pid 3852] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3852] exit_group(0) = ? [pid 3852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3852, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3853 attached , child_tidptr=0x5555571cf5d0) = 3853 [pid 3853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3853] setpgid(0, 0) = 0 [pid 3853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3853] write(3, "1000", 4) = 4 [pid 3853] close(3) = 0 [pid 3853] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3853] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3853] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3853] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3853] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3853] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3853] chdir("./bus") = 0 [pid 3853] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3853] exit_group(0) = ? [pid 3853] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3853, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3854 ./strace-static-x86_64: Process 3854 attached [pid 3854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3854] setpgid(0, 0) = 0 [pid 3854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3854] write(3, "1000", 4) = 4 [pid 3854] close(3) = 0 [pid 3854] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3854] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3854] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3854] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3854] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.413380][ T3851] overlayfs: filesystem on './bus' not supported as upperdir [ 56.429423][ T3852] overlayfs: filesystem on './bus' not supported as upperdir [ 56.445345][ T3853] overlayfs: filesystem on './bus' not supported as upperdir [pid 3854] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3854] chdir("./bus") = 0 [pid 3854] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3854] exit_group(0) = ? [pid 3854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3854, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3855 ./strace-static-x86_64: Process 3855 attached [pid 3855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3855] setpgid(0, 0) = 0 [pid 3855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3855] write(3, "1000", 4) = 4 [pid 3855] close(3) = 0 [pid 3855] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3855] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3855] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3855] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3855] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3855] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3855] chdir("./bus") = 0 [pid 3855] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3855] exit_group(0) = ? [pid 3855] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3855, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3856 attached [pid 3856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3856 [pid 3856] <... prctl resumed>) = 0 [pid 3856] setpgid(0, 0) = 0 [pid 3856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3856] write(3, "1000", 4) = 4 [pid 3856] close(3) = 0 [pid 3856] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3856] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3856] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3856] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3856] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3856] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3856] chdir("./bus") = 0 [pid 3856] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3856] exit_group(0) = ? [pid 3856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3856, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3857 ./strace-static-x86_64: Process 3857 attached [pid 3857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3857] setpgid(0, 0) = 0 [pid 3857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3857] write(3, "1000", 4) = 4 [pid 3857] close(3) = 0 [pid 3857] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3857] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3857] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3857] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3857] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.461223][ T3854] overlayfs: filesystem on './bus' not supported as upperdir [ 56.478270][ T3855] overlayfs: filesystem on './bus' not supported as upperdir [ 56.496669][ T3856] overlayfs: filesystem on './bus' not supported as upperdir [pid 3857] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3857] chdir("./bus") = 0 [pid 3857] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3857] exit_group(0) = ? [pid 3857] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3857, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3858 ./strace-static-x86_64: Process 3858 attached [pid 3858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3858] setpgid(0, 0) = 0 [pid 3858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3858] write(3, "1000", 4) = 4 [pid 3858] close(3) = 0 [pid 3858] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3858] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3858] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3858] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3858] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3858] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3858] chdir("./bus") = 0 [pid 3858] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3858] exit_group(0) = ? [pid 3858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3858, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3859 ./strace-static-x86_64: Process 3859 attached [pid 3859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3859] setpgid(0, 0) = 0 [pid 3859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3859] write(3, "1000", 4) = 4 [pid 3859] close(3) = 0 [pid 3859] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3859] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3859] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3859] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3859] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3859] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3859] chdir("./bus") = 0 [pid 3859] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3859] exit_group(0) = ? [pid 3859] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3859, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3860 attached , child_tidptr=0x5555571cf5d0) = 3860 [pid 3860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3860] setpgid(0, 0) = 0 [pid 3860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3860] write(3, "1000", 4) = 4 [pid 3860] close(3) = 0 [pid 3860] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3860] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3860] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3860] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3860] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.515454][ T3857] overlayfs: filesystem on './bus' not supported as upperdir [ 56.532438][ T3858] overlayfs: filesystem on './bus' not supported as upperdir [ 56.549872][ T3859] overlayfs: filesystem on './bus' not supported as upperdir [pid 3860] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3860] chdir("./bus") = 0 [pid 3860] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3860] exit_group(0) = ? [pid 3860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3860, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3861 ./strace-static-x86_64: Process 3861 attached [pid 3861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3861] setpgid(0, 0) = 0 [pid 3861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3861] write(3, "1000", 4) = 4 [pid 3861] close(3) = 0 [pid 3861] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3861] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3861] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3861] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3861] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3861] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3861] chdir("./bus") = 0 [pid 3861] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3861] exit_group(0) = ? [pid 3861] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3861, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3862 ./strace-static-x86_64: Process 3862 attached [pid 3862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3862] setpgid(0, 0) = 0 [pid 3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3862] write(3, "1000", 4) = 4 [pid 3862] close(3) = 0 [pid 3862] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3862] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3862] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3862] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3862] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3862] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3862] chdir("./bus") = 0 [pid 3862] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3862] exit_group(0) = ? [pid 3862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3862, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3863 ./strace-static-x86_64: Process 3863 attached [pid 3863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3863] setpgid(0, 0) = 0 [pid 3863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3863] write(3, "1000", 4) = 4 [pid 3863] close(3) = 0 [pid 3863] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3863] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3863] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3863] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3863] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.565882][ T3860] overlayfs: filesystem on './bus' not supported as upperdir [ 56.582820][ T3861] overlayfs: filesystem on './bus' not supported as upperdir [ 56.599287][ T3862] overlayfs: filesystem on './bus' not supported as upperdir [pid 3863] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3863] chdir("./bus") = 0 [pid 3863] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3863] exit_group(0) = ? [pid 3863] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3863, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3864 ./strace-static-x86_64: Process 3864 attached [pid 3864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3864] setpgid(0, 0) = 0 [pid 3864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3864] write(3, "1000", 4) = 4 [pid 3864] close(3) = 0 [pid 3864] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3864] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3864] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3864] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3864] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3864] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3864] chdir("./bus") = 0 [pid 3864] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3864] exit_group(0) = ? [pid 3864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3864, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3865 ./strace-static-x86_64: Process 3865 attached [pid 3865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3865] setpgid(0, 0) = 0 [pid 3865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3865] write(3, "1000", 4) = 4 [pid 3865] close(3) = 0 [pid 3865] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3865] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3865] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3865] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3865] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3865] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3865] chdir("./bus") = 0 [pid 3865] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3865] exit_group(0) = ? [pid 3865] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3865, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3866 ./strace-static-x86_64: Process 3866 attached [pid 3866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3866] setpgid(0, 0) = 0 [pid 3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3866] write(3, "1000", 4) = 4 [pid 3866] close(3) = 0 [pid 3866] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3866] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3866] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3866] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3866] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.615365][ T3863] overlayfs: filesystem on './bus' not supported as upperdir [ 56.630919][ T3864] overlayfs: filesystem on './bus' not supported as upperdir [ 56.647129][ T3865] overlayfs: filesystem on './bus' not supported as upperdir [pid 3866] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3866] chdir("./bus") = 0 [pid 3866] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3866] exit_group(0) = ? [pid 3866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3866, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3867 ./strace-static-x86_64: Process 3867 attached [pid 3867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3867] setpgid(0, 0) = 0 [pid 3867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3867] write(3, "1000", 4) = 4 [pid 3867] close(3) = 0 [pid 3867] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3867] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3867] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3867] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3867] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3867] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3867] chdir("./bus") = 0 [pid 3867] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3867] exit_group(0) = ? [pid 3867] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3867, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3868 ./strace-static-x86_64: Process 3868 attached [pid 3868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3868] setpgid(0, 0) = 0 [pid 3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3868] write(3, "1000", 4) = 4 [pid 3868] close(3) = 0 [pid 3868] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3868] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3868] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3868] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3868] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3868] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3868] chdir("./bus") = 0 [pid 3868] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3868] exit_group(0) = ? [pid 3868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3868, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3869 attached [pid 3869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3869 [pid 3869] <... prctl resumed>) = 0 [pid 3869] setpgid(0, 0) = 0 [pid 3869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3869] write(3, "1000", 4) = 4 [pid 3869] close(3) = 0 [pid 3869] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3869] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3869] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3869] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3869] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.664482][ T3866] overlayfs: filesystem on './bus' not supported as upperdir [ 56.679676][ T3867] overlayfs: filesystem on './bus' not supported as upperdir [ 56.696785][ T3868] overlayfs: filesystem on './bus' not supported as upperdir [pid 3869] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3869] chdir("./bus") = 0 [pid 3869] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3869] exit_group(0) = ? [pid 3869] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3869, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3870 attached , child_tidptr=0x5555571cf5d0) = 3870 [pid 3870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3870] setpgid(0, 0) = 0 [pid 3870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3870] write(3, "1000", 4) = 4 [pid 3870] close(3) = 0 [pid 3870] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3870] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3870] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3870] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3870] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3870] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3870] chdir("./bus") = 0 [pid 3870] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3870] exit_group(0) = ? [pid 3870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3870, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3871 ./strace-static-x86_64: Process 3871 attached [pid 3871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3871] setpgid(0, 0) = 0 [pid 3871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3871] write(3, "1000", 4) = 4 [pid 3871] close(3) = 0 [pid 3871] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3871] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3871] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3871] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3871] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3871] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3871] chdir("./bus") = 0 [pid 3871] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3871] exit_group(0) = ? [pid 3871] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3871, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3872 ./strace-static-x86_64: Process 3872 attached [pid 3872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3872] setpgid(0, 0) = 0 [pid 3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3872] write(3, "1000", 4) = 4 [pid 3872] close(3) = 0 [pid 3872] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3872] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3872] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3872] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3872] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.714324][ T3869] overlayfs: filesystem on './bus' not supported as upperdir [ 56.730471][ T3870] overlayfs: filesystem on './bus' not supported as upperdir [ 56.746717][ T3871] overlayfs: filesystem on './bus' not supported as upperdir [pid 3872] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3872] chdir("./bus") = 0 [pid 3872] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3872] exit_group(0) = ? [pid 3872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3872, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3873 ./strace-static-x86_64: Process 3873 attached [pid 3873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3873] setpgid(0, 0) = 0 [pid 3873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3873] write(3, "1000", 4) = 4 [pid 3873] close(3) = 0 [pid 3873] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3873] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3873] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3873] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3873] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3873] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3873] chdir("./bus") = 0 [pid 3873] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3873] exit_group(0) = ? [pid 3873] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3873, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3874 ./strace-static-x86_64: Process 3874 attached [pid 3874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3874] setpgid(0, 0) = 0 [pid 3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3874] write(3, "1000", 4) = 4 [pid 3874] close(3) = 0 [pid 3874] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3874] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3874] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3874] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3874] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3874] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3874] chdir("./bus") = 0 [pid 3874] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3874] exit_group(0) = ? [pid 3874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3874, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3875 ./strace-static-x86_64: Process 3875 attached [pid 3875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3875] setpgid(0, 0) = 0 [pid 3875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3875] write(3, "1000", 4) = 4 [pid 3875] close(3) = 0 [pid 3875] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3875] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3875] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3875] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3875] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.764137][ T3872] overlayfs: filesystem on './bus' not supported as upperdir [ 56.780270][ T3873] overlayfs: filesystem on './bus' not supported as upperdir [ 56.796401][ T3874] overlayfs: filesystem on './bus' not supported as upperdir [pid 3875] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3875] chdir("./bus") = 0 [pid 3875] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3875] exit_group(0) = ? [pid 3875] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3875, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3876 ./strace-static-x86_64: Process 3876 attached [pid 3876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3876] setpgid(0, 0) = 0 [pid 3876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3876] write(3, "1000", 4) = 4 [pid 3876] close(3) = 0 [pid 3876] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3876] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3876] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3876] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3876] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3876] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3876] chdir("./bus") = 0 [pid 3876] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3876] exit_group(0) = ? [pid 3876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3876, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3877 ./strace-static-x86_64: Process 3877 attached [pid 3877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3877] setpgid(0, 0) = 0 [pid 3877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3877] write(3, "1000", 4) = 4 [pid 3877] close(3) = 0 [pid 3877] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3877] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3877] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3877] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3877] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3877] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3877] chdir("./bus") = 0 [pid 3877] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3877] exit_group(0) = ? [pid 3877] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3877, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3878 attached , child_tidptr=0x5555571cf5d0) = 3878 [pid 3878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3878] setpgid(0, 0) = 0 [pid 3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3878] write(3, "1000", 4) = 4 [pid 3878] close(3) = 0 [pid 3878] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3878] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3878] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3878] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3878] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.813948][ T3875] overlayfs: filesystem on './bus' not supported as upperdir [ 56.835175][ T3876] overlayfs: filesystem on './bus' not supported as upperdir [ 56.851631][ T3877] overlayfs: filesystem on './bus' not supported as upperdir [pid 3878] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3878] chdir("./bus") = 0 [pid 3878] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3878] exit_group(0) = ? [pid 3878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3878, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3879 ./strace-static-x86_64: Process 3879 attached [pid 3879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3879] setpgid(0, 0) = 0 [pid 3879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3879] write(3, "1000", 4) = 4 [pid 3879] close(3) = 0 [pid 3879] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3879] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3879] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3879] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3879] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3879] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3879] chdir("./bus") = 0 [pid 3879] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3879] exit_group(0) = ? [pid 3879] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3879, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3880 ./strace-static-x86_64: Process 3880 attached [pid 3880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3880] setpgid(0, 0) = 0 [pid 3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3880] write(3, "1000", 4) = 4 [pid 3880] close(3) = 0 [pid 3880] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3880] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3880] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3880] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3880] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3880] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3880] chdir("./bus") = 0 [pid 3880] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3880] exit_group(0) = ? [pid 3880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3880, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3881 ./strace-static-x86_64: Process 3881 attached [pid 3881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3881] setpgid(0, 0) = 0 [pid 3881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3881] write(3, "1000", 4) = 4 [pid 3881] close(3) = 0 [pid 3881] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3881] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3881] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3881] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3881] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.869543][ T3878] overlayfs: filesystem on './bus' not supported as upperdir [ 56.885634][ T3879] overlayfs: filesystem on './bus' not supported as upperdir [ 56.903601][ T3880] overlayfs: filesystem on './bus' not supported as upperdir [pid 3881] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3881] chdir("./bus") = 0 [pid 3881] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3881] exit_group(0) = ? [pid 3881] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3881, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3882 ./strace-static-x86_64: Process 3882 attached [pid 3882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3882] setpgid(0, 0) = 0 [pid 3882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3882] write(3, "1000", 4) = 4 [pid 3882] close(3) = 0 [pid 3882] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3882] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3882] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3882] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3882] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3882] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3882] chdir("./bus") = 0 [pid 3882] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3882] exit_group(0) = ? [pid 3882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3882, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3883 ./strace-static-x86_64: Process 3883 attached [pid 3883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3883] setpgid(0, 0) = 0 [pid 3883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3883] write(3, "1000", 4) = 4 [pid 3883] close(3) = 0 [pid 3883] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3883] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3883] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3883] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3883] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3883] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3883] chdir("./bus") = 0 [pid 3883] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3883] exit_group(0) = ? [pid 3883] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3883, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3884 ./strace-static-x86_64: Process 3884 attached [pid 3884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3884] setpgid(0, 0) = 0 [pid 3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3884] write(3, "1000", 4) = 4 [pid 3884] close(3) = 0 [pid 3884] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3884] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3884] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3884] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3884] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.920281][ T3881] overlayfs: filesystem on './bus' not supported as upperdir [ 56.936908][ T3882] overlayfs: filesystem on './bus' not supported as upperdir [ 56.955407][ T3883] overlayfs: filesystem on './bus' not supported as upperdir [pid 3884] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3884] chdir("./bus") = 0 [pid 3884] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3884] exit_group(0) = ? [pid 3884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3884, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3885 attached , child_tidptr=0x5555571cf5d0) = 3885 [pid 3885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3885] setpgid(0, 0) = 0 [pid 3885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3885] write(3, "1000", 4) = 4 [pid 3885] close(3) = 0 [pid 3885] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3885] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3885] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3885] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3885] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3885] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3885] chdir("./bus") = 0 [pid 3885] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3885] exit_group(0) = ? [pid 3885] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3885, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3886 ./strace-static-x86_64: Process 3886 attached [pid 3886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3886] setpgid(0, 0) = 0 [pid 3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3886] write(3, "1000", 4) = 4 [pid 3886] close(3) = 0 [pid 3886] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3886] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3886] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3886] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3886] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3886] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3886] chdir("./bus") = 0 [pid 3886] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3886] exit_group(0) = ? [pid 3886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3886, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3887 ./strace-static-x86_64: Process 3887 attached [pid 3887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3887] setpgid(0, 0) = 0 [pid 3887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3887] write(3, "1000", 4) = 4 [pid 3887] close(3) = 0 [pid 3887] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3887] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3887] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3887] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3887] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 56.972458][ T3884] overlayfs: filesystem on './bus' not supported as upperdir [ 56.991947][ T3885] overlayfs: filesystem on './bus' not supported as upperdir [ 57.008869][ T3886] overlayfs: filesystem on './bus' not supported as upperdir [pid 3887] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3887] chdir("./bus") = 0 [pid 3887] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3887] exit_group(0) = ? [pid 3887] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3887, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3888 ./strace-static-x86_64: Process 3888 attached [pid 3888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3888] setpgid(0, 0) = 0 [pid 3888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3888] write(3, "1000", 4) = 4 [pid 3888] close(3) = 0 [pid 3888] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3888] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3888] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3888] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3888] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3888] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3888] chdir("./bus") = 0 [pid 3888] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3888] exit_group(0) = ? [pid 3888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3888, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3889 ./strace-static-x86_64: Process 3889 attached [pid 3889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3889] setpgid(0, 0) = 0 [pid 3889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3889] write(3, "1000", 4) = 4 [pid 3889] close(3) = 0 [pid 3889] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3889] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3889] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3889] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3889] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3889] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3889] chdir("./bus") = 0 [pid 3889] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3889] exit_group(0) = ? [pid 3889] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3889, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3890 ./strace-static-x86_64: Process 3890 attached [pid 3890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3890] setpgid(0, 0) = 0 [pid 3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3890] write(3, "1000", 4) = 4 [pid 3890] close(3) = 0 [pid 3890] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3890] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3890] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3890] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3890] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.026287][ T3887] overlayfs: filesystem on './bus' not supported as upperdir [ 57.042949][ T3888] overlayfs: filesystem on './bus' not supported as upperdir [ 57.058732][ T3889] overlayfs: filesystem on './bus' not supported as upperdir [pid 3890] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3890] chdir("./bus") = 0 [pid 3890] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3890] exit_group(0) = ? [pid 3890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3890, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3891 ./strace-static-x86_64: Process 3891 attached [pid 3891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3891] setpgid(0, 0) = 0 [pid 3891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3891] write(3, "1000", 4) = 4 [pid 3891] close(3) = 0 [pid 3891] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3891] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3891] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3891] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3891] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3891] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3891] chdir("./bus") = 0 [pid 3891] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3891] exit_group(0) = ? [pid 3891] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3891, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3892 ./strace-static-x86_64: Process 3892 attached [pid 3892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3892] setpgid(0, 0) = 0 [pid 3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3892] write(3, "1000", 4) = 4 [pid 3892] close(3) = 0 [pid 3892] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3892] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3892] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3892] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3892] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3892] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3892] chdir("./bus") = 0 [pid 3892] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3892] exit_group(0) = ? [pid 3892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3892, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3893 ./strace-static-x86_64: Process 3893 attached [pid 3893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3893] setpgid(0, 0) = 0 [pid 3893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3893] write(3, "1000", 4) = 4 [pid 3893] close(3) = 0 [pid 3893] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3893] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3893] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3893] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3893] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.074549][ T3890] overlayfs: filesystem on './bus' not supported as upperdir [ 57.094220][ T3891] overlayfs: filesystem on './bus' not supported as upperdir [ 57.111892][ T3892] overlayfs: filesystem on './bus' not supported as upperdir [pid 3893] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3893] chdir("./bus") = 0 [pid 3893] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3893] exit_group(0) = ? [pid 3893] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3893, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3894 ./strace-static-x86_64: Process 3894 attached [pid 3894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3894] setpgid(0, 0) = 0 [pid 3894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3894] write(3, "1000", 4) = 4 [pid 3894] close(3) = 0 [pid 3894] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3894] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3894] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3894] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3894] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3894] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3894] chdir("./bus") = 0 [pid 3894] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3894] exit_group(0) = ? [pid 3894] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3894, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3895 ./strace-static-x86_64: Process 3895 attached [pid 3895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3895] setpgid(0, 0) = 0 [pid 3895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3895] write(3, "1000", 4) = 4 [pid 3895] close(3) = 0 [pid 3895] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3895] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3895] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3895] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3895] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3895] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3895] chdir("./bus") = 0 [pid 3895] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3895] exit_group(0) = ? [pid 3895] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3895, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3896 ./strace-static-x86_64: Process 3896 attached [pid 3896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3896] setpgid(0, 0) = 0 [pid 3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3896] write(3, "1000", 4) = 4 [pid 3896] close(3) = 0 [pid 3896] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3896] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3896] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3896] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3896] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.128772][ T3893] overlayfs: filesystem on './bus' not supported as upperdir [ 57.145469][ T3894] overlayfs: filesystem on './bus' not supported as upperdir [ 57.162235][ T3895] overlayfs: filesystem on './bus' not supported as upperdir [pid 3896] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3896] chdir("./bus") = 0 [pid 3896] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3896] exit_group(0) = ? [pid 3896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3896, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3897 ./strace-static-x86_64: Process 3897 attached [pid 3897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3897] setpgid(0, 0) = 0 [pid 3897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3897] write(3, "1000", 4) = 4 [pid 3897] close(3) = 0 [pid 3897] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3897] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3897] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3897] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3897] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3897] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3897] chdir("./bus") = 0 [pid 3897] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3897] exit_group(0) = ? [pid 3897] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3897, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3898 ./strace-static-x86_64: Process 3898 attached [pid 3898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3898] setpgid(0, 0) = 0 [pid 3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3898] write(3, "1000", 4) = 4 [pid 3898] close(3) = 0 [pid 3898] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3898] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3898] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3898] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3898] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3898] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3898] chdir("./bus") = 0 [pid 3898] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3898] exit_group(0) = ? [pid 3898] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3898, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3899 ./strace-static-x86_64: Process 3899 attached [pid 3899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3899] setpgid(0, 0) = 0 [ 57.178887][ T3896] overlayfs: filesystem on './bus' not supported as upperdir [ 57.196115][ T3897] overlayfs: filesystem on './bus' not supported as upperdir [ 57.213000][ T3898] overlayfs: filesystem on './bus' not supported as upperdir [pid 3899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3899] write(3, "1000", 4) = 4 [pid 3899] close(3) = 0 [pid 3899] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3899] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3899] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3899] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3899] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3899] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3899] chdir("./bus") = 0 [pid 3899] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3899] exit_group(0) = ? [pid 3899] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3899, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3900 ./strace-static-x86_64: Process 3900 attached [pid 3900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3900] setpgid(0, 0) = 0 [pid 3900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3900] write(3, "1000", 4) = 4 [pid 3900] close(3) = 0 [pid 3900] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3900] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3900] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3900] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3900] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3900] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3900] chdir("./bus") = 0 [pid 3900] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3900] exit_group(0) = ? [pid 3900] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3900, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3901 ./strace-static-x86_64: Process 3901 attached [pid 3901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3901] setpgid(0, 0) = 0 [pid 3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3901] write(3, "1000", 4) = 4 [pid 3901] close(3) = 0 [pid 3901] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3901] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3901] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3901] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3901] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3901] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3901] chdir("./bus") = 0 [pid 3901] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3901] exit_group(0) = ? [pid 3901] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3901, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3902 ./strace-static-x86_64: Process 3902 attached [pid 3902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3902] setpgid(0, 0) = 0 [pid 3902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3902] write(3, "1000", 4) = 4 [pid 3902] close(3) = 0 [pid 3902] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3902] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3902] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3902] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3902] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.228122][ T3899] overlayfs: filesystem on './bus' not supported as upperdir [ 57.246135][ T3900] overlayfs: filesystem on './bus' not supported as upperdir [ 57.263718][ T3901] overlayfs: filesystem on './bus' not supported as upperdir [pid 3902] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3902] chdir("./bus") = 0 [pid 3902] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3902] exit_group(0) = ? [pid 3902] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3902, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3903 ./strace-static-x86_64: Process 3903 attached [pid 3903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3903] setpgid(0, 0) = 0 [pid 3903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3903] write(3, "1000", 4) = 4 [pid 3903] close(3) = 0 [pid 3903] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3903] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3903] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3903] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3903] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3903] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3903] chdir("./bus") = 0 [pid 3903] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3903] exit_group(0) = ? [pid 3903] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3903, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3904 ./strace-static-x86_64: Process 3904 attached [pid 3904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3904] setpgid(0, 0) = 0 [pid 3904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3904] write(3, "1000", 4) = 4 [pid 3904] close(3) = 0 [pid 3904] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3904] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3904] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3904] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3904] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3904] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3904] chdir("./bus") = 0 [pid 3904] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3904] exit_group(0) = ? [pid 3904] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3904, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3905 ./strace-static-x86_64: Process 3905 attached [pid 3905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3905] setpgid(0, 0) = 0 [pid 3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3905] write(3, "1000", 4) = 4 [pid 3905] close(3) = 0 [pid 3905] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3905] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3905] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3905] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3905] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.282004][ T3902] overlayfs: filesystem on './bus' not supported as upperdir [ 57.300399][ T3903] overlayfs: filesystem on './bus' not supported as upperdir [ 57.318803][ T3904] overlayfs: filesystem on './bus' not supported as upperdir [pid 3905] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3905] chdir("./bus") = 0 [pid 3905] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3905] exit_group(0) = ? [pid 3905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3905, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3906 ./strace-static-x86_64: Process 3906 attached [pid 3906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3906] setpgid(0, 0) = 0 [pid 3906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3906] write(3, "1000", 4) = 4 [pid 3906] close(3) = 0 [pid 3906] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3906] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3906] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3906] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3906] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3906] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3906] chdir("./bus") = 0 [pid 3906] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3906] exit_group(0) = ? [pid 3906] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3906, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3907 ./strace-static-x86_64: Process 3907 attached [pid 3907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3907] setpgid(0, 0) = 0 [pid 3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3907] write(3, "1000", 4) = 4 [pid 3907] close(3) = 0 [pid 3907] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3907] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3907] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3907] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3907] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3907] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3907] chdir("./bus") = 0 [pid 3907] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3907] exit_group(0) = ? [pid 3907] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3907, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3908 ./strace-static-x86_64: Process 3908 attached [pid 3908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3908] setpgid(0, 0) = 0 [pid 3908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3908] write(3, "1000", 4) = 4 [pid 3908] close(3) = 0 [pid 3908] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3908] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3908] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3908] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3908] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.335796][ T3905] overlayfs: filesystem on './bus' not supported as upperdir [ 57.357267][ T3906] overlayfs: filesystem on './bus' not supported as upperdir [ 57.372209][ T3907] overlayfs: filesystem on './bus' not supported as upperdir [pid 3908] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3908] chdir("./bus") = 0 [pid 3908] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3908] exit_group(0) = ? [pid 3908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3908, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3909 attached , child_tidptr=0x5555571cf5d0) = 3909 [pid 3909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3909] setpgid(0, 0) = 0 [pid 3909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3909] write(3, "1000", 4) = 4 [pid 3909] close(3) = 0 [pid 3909] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3909] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3909] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3909] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3909] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3909] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3909] chdir("./bus") = 0 [pid 3909] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3909] exit_group(0) = ? [pid 3909] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3909, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3910 ./strace-static-x86_64: Process 3910 attached [pid 3910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3910] setpgid(0, 0) = 0 [pid 3910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3910] write(3, "1000", 4) = 4 [pid 3910] close(3) = 0 [pid 3910] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3910] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3910] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3910] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3910] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3910] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3910] chdir("./bus") = 0 [pid 3910] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3910] exit_group(0) = ? [pid 3910] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3910, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3911 attached , child_tidptr=0x5555571cf5d0) = 3911 [pid 3911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3911] setpgid(0, 0) = 0 [pid 3911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3911] write(3, "1000", 4) = 4 [pid 3911] close(3) = 0 [pid 3911] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3911] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3911] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3911] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3911] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.388667][ T3908] overlayfs: filesystem on './bus' not supported as upperdir [ 57.405175][ T3909] overlayfs: filesystem on './bus' not supported as upperdir [ 57.421297][ T3910] overlayfs: filesystem on './bus' not supported as upperdir [pid 3911] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3911] chdir("./bus") = 0 [pid 3911] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3911] exit_group(0) = ? [pid 3911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3911, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3912 ./strace-static-x86_64: Process 3912 attached [pid 3912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3912] setpgid(0, 0) = 0 [pid 3912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3912] write(3, "1000", 4) = 4 [pid 3912] close(3) = 0 [pid 3912] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3912] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3912] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3912] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3912] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3912] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3912] chdir("./bus") = 0 [pid 3912] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3912] exit_group(0) = ? [pid 3912] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3912, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3913 ./strace-static-x86_64: Process 3913 attached [pid 3913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3913] setpgid(0, 0) = 0 [pid 3913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3913] write(3, "1000", 4) = 4 [pid 3913] close(3) = 0 [pid 3913] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3913] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3913] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3913] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3913] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3913] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3913] chdir("./bus") = 0 [pid 3913] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3913] exit_group(0) = ? [pid 3913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3913, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3914 ./strace-static-x86_64: Process 3914 attached [pid 3914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3914] setpgid(0, 0) = 0 [pid 3914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3914] write(3, "1000", 4) = 4 [pid 3914] close(3) = 0 [pid 3914] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3914] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3914] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3914] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3914] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.439488][ T3911] overlayfs: filesystem on './bus' not supported as upperdir [ 57.455137][ T3912] overlayfs: filesystem on './bus' not supported as upperdir [ 57.471989][ T3913] overlayfs: filesystem on './bus' not supported as upperdir [pid 3914] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3914] chdir("./bus") = 0 [pid 3914] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3914] exit_group(0) = ? [pid 3914] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3914, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3915 ./strace-static-x86_64: Process 3915 attached [pid 3915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3915] setpgid(0, 0) = 0 [pid 3915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3915] write(3, "1000", 4) = 4 [pid 3915] close(3) = 0 [pid 3915] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3915] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3915] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3915] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3915] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3915] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3915] chdir("./bus") = 0 [pid 3915] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3915] exit_group(0) = ? [pid 3915] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3915, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3916 attached , child_tidptr=0x5555571cf5d0) = 3916 [pid 3916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3916] setpgid(0, 0) = 0 [pid 3916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3916] write(3, "1000", 4) = 4 [pid 3916] close(3) = 0 [pid 3916] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3916] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3916] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3916] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3916] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3916] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3916] chdir("./bus") = 0 [pid 3916] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3916] exit_group(0) = ? [pid 3916] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3916, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3917 attached [pid 3917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3917] setpgid(0, 0) = 0 [pid 3917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3917 [pid 3917] <... openat resumed>) = 3 [pid 3917] write(3, "1000", 4) = 4 [pid 3917] close(3) = 0 [pid 3917] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3917] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3917] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3917] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3917] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3917] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3917] chdir("./bus") = 0 [pid 3917] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3917] exit_group(0) = ? [pid 3917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3917, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [ 57.488752][ T3914] overlayfs: filesystem on './bus' not supported as upperdir [ 57.507404][ T3915] overlayfs: filesystem on './bus' not supported as upperdir [ 57.523615][ T3916] overlayfs: filesystem on './bus' not supported as upperdir restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3918 ./strace-static-x86_64: Process 3918 attached [pid 3918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3918] setpgid(0, 0) = 0 [pid 3918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3918] write(3, "1000", 4) = 4 [pid 3918] close(3) = 0 [pid 3918] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3918] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3918] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3918] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3918] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3918] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3918] chdir("./bus") = 0 [pid 3918] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3918] exit_group(0) = ? [pid 3918] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3918, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3919 ./strace-static-x86_64: Process 3919 attached [pid 3919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3919] setpgid(0, 0) = 0 [pid 3919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3919] write(3, "1000", 4) = 4 [pid 3919] close(3) = 0 [pid 3919] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3919] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3919] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3919] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3919] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3919] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3919] chdir("./bus") = 0 [pid 3919] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3919] exit_group(0) = ? [pid 3919] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3919, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3920 ./strace-static-x86_64: Process 3920 attached [pid 3920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3920] setpgid(0, 0) = 0 [pid 3920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3920] write(3, "1000", 4) = 4 [pid 3920] close(3) = 0 [pid 3920] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3920] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3920] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3920] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3920] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.539818][ T3917] overlayfs: filesystem on './bus' not supported as upperdir [ 57.554587][ T3918] overlayfs: filesystem on './bus' not supported as upperdir [ 57.570474][ T3919] overlayfs: filesystem on './bus' not supported as upperdir [pid 3920] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3920] chdir("./bus") = 0 [pid 3920] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3920] exit_group(0) = ? [pid 3920] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3920, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3921 attached , child_tidptr=0x5555571cf5d0) = 3921 [pid 3921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3921] setpgid(0, 0) = 0 [pid 3921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3921] write(3, "1000", 4) = 4 [pid 3921] close(3) = 0 [pid 3921] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3921] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3921] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3921] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3921] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3921] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3921] chdir("./bus") = 0 [pid 3921] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3921] exit_group(0) = ? [pid 3921] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3921, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3922 ./strace-static-x86_64: Process 3922 attached [pid 3922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3922] setpgid(0, 0) = 0 [pid 3922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3922] write(3, "1000", 4) = 4 [pid 3922] close(3) = 0 [pid 3922] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3922] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3922] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3922] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3922] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3922] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3922] chdir("./bus") = 0 [pid 3922] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3922] exit_group(0) = ? [pid 3922] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3922, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3923 attached , child_tidptr=0x5555571cf5d0) = 3923 [pid 3923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3923] setpgid(0, 0) = 0 [pid 3923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3923] write(3, "1000", 4) = 4 [pid 3923] close(3) = 0 [pid 3923] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3923] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3923] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3923] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3923] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.587526][ T3920] overlayfs: filesystem on './bus' not supported as upperdir [ 57.604270][ T3921] overlayfs: filesystem on './bus' not supported as upperdir [ 57.620357][ T3922] overlayfs: filesystem on './bus' not supported as upperdir [pid 3923] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3923] chdir("./bus") = 0 [pid 3923] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3923] exit_group(0) = ? [pid 3923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3923, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3924 ./strace-static-x86_64: Process 3924 attached [pid 3924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3924] setpgid(0, 0) = 0 [pid 3924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3924] write(3, "1000", 4) = 4 [pid 3924] close(3) = 0 [ 57.635772][ T3923] overlayfs: filesystem on './bus' not supported as upperdir [pid 3924] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3924] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3924] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3924] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3924] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3924] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3924] chdir("./bus") = 0 [pid 3924] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3924] exit_group(0) = ? [pid 3924] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3924, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3925 ./strace-static-x86_64: Process 3925 attached [pid 3925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3925] setpgid(0, 0) = 0 [pid 3925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3925] write(3, "1000", 4) = 4 [pid 3925] close(3) = 0 [pid 3925] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3925] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3925] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3925] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3925] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3925] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3925] chdir("./bus") = 0 [pid 3925] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3925] exit_group(0) = ? [pid 3925] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3925, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3926 ./strace-static-x86_64: Process 3926 attached [pid 3926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3926] setpgid(0, 0) = 0 [pid 3926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3926] write(3, "1000", 4) = 4 [pid 3926] close(3) = 0 [pid 3926] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3926] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3926] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3926] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3926] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3926] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3926] chdir("./bus") = 0 [pid 3926] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3926] exit_group(0) = ? [pid 3926] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3926, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3927 attached , child_tidptr=0x5555571cf5d0) = 3927 [ 57.661767][ T3924] overlayfs: filesystem on './bus' not supported as upperdir [ 57.679417][ T3925] overlayfs: filesystem on './bus' not supported as upperdir [ 57.698485][ T3926] overlayfs: filesystem on './bus' not supported as upperdir [pid 3927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3927] setpgid(0, 0) = 0 [pid 3927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3927] write(3, "1000", 4) = 4 [pid 3927] close(3) = 0 [pid 3927] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3927] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3927] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3927] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3927] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3927] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3927] chdir("./bus") = 0 [pid 3927] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3927] exit_group(0) = ? [pid 3927] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3927, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3928 ./strace-static-x86_64: Process 3928 attached [pid 3928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3928] setpgid(0, 0) = 0 [pid 3928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3928] write(3, "1000", 4) = 4 [pid 3928] close(3) = 0 [pid 3928] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3928] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3928] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3928] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3928] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3928] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3928] chdir("./bus") = 0 [pid 3928] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3928] exit_group(0) = ? [pid 3928] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3928, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3929 ./strace-static-x86_64: Process 3929 attached [pid 3929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3929] setpgid(0, 0) = 0 [pid 3929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3929] write(3, "1000", 4) = 4 [pid 3929] close(3) = 0 [pid 3929] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3929] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3929] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3929] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3929] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3929] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3929] chdir("./bus") = 0 [pid 3929] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3929] exit_group(0) = ? [pid 3929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3929, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3930 ./strace-static-x86_64: Process 3930 attached [pid 3930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3930] setpgid(0, 0) = 0 [pid 3930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3930] write(3, "1000", 4) = 4 [pid 3930] close(3) = 0 [pid 3930] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3930] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3930] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3930] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3930] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.714565][ T3927] overlayfs: filesystem on './bus' not supported as upperdir [ 57.732975][ T3928] overlayfs: filesystem on './bus' not supported as upperdir [ 57.749877][ T3929] overlayfs: filesystem on './bus' not supported as upperdir [pid 3930] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3930] chdir("./bus") = 0 [pid 3930] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3930] exit_group(0) = ? [pid 3930] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3930, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3931 attached [pid 3931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3931] setpgid(0, 0) = 0 [pid 3931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3931 [pid 3931] <... openat resumed>) = 3 [pid 3931] write(3, "1000", 4) = 4 [pid 3931] close(3) = 0 [pid 3931] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3931] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3931] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3931] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3931] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3931] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3931] chdir("./bus") = 0 [pid 3931] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3931] exit_group(0) = ? [pid 3931] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3931, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3932 attached , child_tidptr=0x5555571cf5d0) = 3932 [pid 3932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3932] setpgid(0, 0) = 0 [pid 3932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3932] write(3, "1000", 4) = 4 [pid 3932] close(3) = 0 [pid 3932] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3932] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3932] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3932] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3932] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.766762][ T3930] overlayfs: filesystem on './bus' not supported as upperdir [ 57.784711][ T3931] overlayfs: filesystem on './bus' not supported as upperdir [pid 3932] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3932] chdir("./bus") = 0 [pid 3932] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3932] exit_group(0) = ? [pid 3932] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3932, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3933 ./strace-static-x86_64: Process 3933 attached [pid 3933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3933] setpgid(0, 0) = 0 [pid 3933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3933] write(3, "1000", 4) = 4 [pid 3933] close(3) = 0 [pid 3933] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3933] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3933] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3933] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3933] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3933] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3933] chdir("./bus") = 0 [pid 3933] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3933] exit_group(0) = ? [pid 3933] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3933, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3934 ./strace-static-x86_64: Process 3934 attached [pid 3934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3934] setpgid(0, 0) = 0 [pid 3934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3934] write(3, "1000", 4) = 4 [pid 3934] close(3) = 0 [pid 3934] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3934] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3934] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3934] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3934] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3934] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3934] chdir("./bus") = 0 [pid 3934] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3934] exit_group(0) = ? [pid 3934] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3934, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3935 attached , child_tidptr=0x5555571cf5d0) = 3935 [pid 3935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3935] setpgid(0, 0) = 0 [pid 3935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3935] write(3, "1000", 4) = 4 [pid 3935] close(3) = 0 [pid 3935] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3935] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3935] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3935] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3935] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.810966][ T3932] overlayfs: filesystem on './bus' not supported as upperdir [ 57.828165][ T3933] overlayfs: filesystem on './bus' not supported as upperdir [ 57.845101][ T3934] overlayfs: filesystem on './bus' not supported as upperdir [pid 3935] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3935] chdir("./bus") = 0 [pid 3935] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3935] exit_group(0) = ? [pid 3935] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3935, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3936 ./strace-static-x86_64: Process 3936 attached [pid 3936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3936] setpgid(0, 0) = 0 [pid 3936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3936] write(3, "1000", 4) = 4 [pid 3936] close(3) = 0 [pid 3936] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3936] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3936] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3936] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3936] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3936] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3936] chdir("./bus") = 0 [pid 3936] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3936] exit_group(0) = ? [pid 3936] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3936, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3937 ./strace-static-x86_64: Process 3937 attached [pid 3937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3937] setpgid(0, 0) = 0 [pid 3937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3937] write(3, "1000", 4) = 4 [pid 3937] close(3) = 0 [pid 3937] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3937] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3937] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3937] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3937] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3937] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3937] chdir("./bus") = 0 [pid 3937] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3937] exit_group(0) = ? [pid 3937] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3937, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3938 ./strace-static-x86_64: Process 3938 attached [pid 3938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3938] setpgid(0, 0) = 0 [pid 3938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3938] write(3, "1000", 4) = 4 [pid 3938] close(3) = 0 [pid 3938] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3938] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3938] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3938] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3938] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.863807][ T3935] overlayfs: filesystem on './bus' not supported as upperdir [ 57.880699][ T3936] overlayfs: filesystem on './bus' not supported as upperdir [ 57.897409][ T3937] overlayfs: filesystem on './bus' not supported as upperdir [pid 3938] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3938] chdir("./bus") = 0 [pid 3938] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3938] exit_group(0) = ? [pid 3938] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3938, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3939 attached , child_tidptr=0x5555571cf5d0) = 3939 [pid 3939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3939] setpgid(0, 0) = 0 [pid 3939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3939] write(3, "1000", 4) = 4 [pid 3939] close(3) = 0 [pid 3939] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3939] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3939] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3939] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3939] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3939] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3939] chdir("./bus") = 0 [pid 3939] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3939] exit_group(0) = ? [pid 3939] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3939, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3940 ./strace-static-x86_64: Process 3940 attached [pid 3940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3940] setpgid(0, 0) = 0 [pid 3940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3940] write(3, "1000", 4) = 4 [pid 3940] close(3) = 0 [pid 3940] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3940] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3940] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3940] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3940] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3940] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3940] chdir("./bus") = 0 [pid 3940] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3940] exit_group(0) = ? [pid 3940] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3940, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3941 ./strace-static-x86_64: Process 3941 attached [pid 3941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3941] setpgid(0, 0) = 0 [pid 3941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3941] write(3, "1000", 4) = 4 [pid 3941] close(3) = 0 [ 57.915721][ T3938] overlayfs: filesystem on './bus' not supported as upperdir [ 57.930918][ T3939] overlayfs: filesystem on './bus' not supported as upperdir [ 57.947330][ T3940] overlayfs: filesystem on './bus' not supported as upperdir [pid 3941] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3941] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3941] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3941] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3941] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3941] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3941] chdir("./bus") = 0 [pid 3941] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3941] exit_group(0) = ? [pid 3941] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3941, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3942 attached , child_tidptr=0x5555571cf5d0) = 3942 [pid 3942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3942] setpgid(0, 0) = 0 [pid 3942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3942] write(3, "1000", 4) = 4 [pid 3942] close(3) = 0 [pid 3942] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3942] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3942] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3942] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3942] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3942] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3942] chdir("./bus") = 0 [pid 3942] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3942] exit_group(0) = ? [pid 3942] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3942, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3943 ./strace-static-x86_64: Process 3943 attached [pid 3943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3943] setpgid(0, 0) = 0 [pid 3943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3943] write(3, "1000", 4) = 4 [pid 3943] close(3) = 0 [pid 3943] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3943] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3943] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3943] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3943] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 57.973762][ T3941] overlayfs: filesystem on './bus' not supported as upperdir [ 57.990560][ T3942] overlayfs: filesystem on './bus' not supported as upperdir [pid 3943] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3943] chdir("./bus") = 0 [pid 3943] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3943] exit_group(0) = ? [pid 3943] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3943, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3944 attached , child_tidptr=0x5555571cf5d0) = 3944 [pid 3944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3944] setpgid(0, 0) = 0 [pid 3944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3944] write(3, "1000", 4) = 4 [pid 3944] close(3) = 0 [pid 3944] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3944] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3944] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3944] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3944] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3944] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3944] chdir("./bus") = 0 [pid 3944] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3944] exit_group(0) = ? [pid 3944] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3944, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3945 attached , child_tidptr=0x5555571cf5d0) = 3945 [pid 3945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3945] setpgid(0, 0) = 0 [pid 3945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3945] write(3, "1000", 4) = 4 [pid 3945] close(3) = 0 [pid 3945] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3945] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3945] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3945] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3945] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3945] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3945] chdir("./bus") = 0 [pid 3945] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3945] exit_group(0) = ? [pid 3945] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3945, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3946 ./strace-static-x86_64: Process 3946 attached [pid 3946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3946] setpgid(0, 0) = 0 [pid 3946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3946] write(3, "1000", 4) = 4 [pid 3946] close(3) = 0 [pid 3946] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3946] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3946] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3946] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3946] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.016161][ T3943] overlayfs: filesystem on './bus' not supported as upperdir [ 58.032179][ T3944] overlayfs: filesystem on './bus' not supported as upperdir [ 58.049393][ T3945] overlayfs: filesystem on './bus' not supported as upperdir [pid 3946] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3946] chdir("./bus") = 0 [pid 3946] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3946] exit_group(0) = ? [pid 3946] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3946, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3947 ./strace-static-x86_64: Process 3947 attached [pid 3947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3947] setpgid(0, 0) = 0 [pid 3947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3947] write(3, "1000", 4) = 4 [pid 3947] close(3) = 0 [pid 3947] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3947] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3947] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3947] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3947] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3947] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3947] chdir("./bus") = 0 [pid 3947] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3947] exit_group(0) = ? [pid 3947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3947, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3948 ./strace-static-x86_64: Process 3948 attached [pid 3948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3948] setpgid(0, 0) = 0 [pid 3948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3948] write(3, "1000", 4) = 4 [pid 3948] close(3) = 0 [pid 3948] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3948] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3948] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3948] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3948] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3948] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3948] chdir("./bus") = 0 [pid 3948] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3948] exit_group(0) = ? [pid 3948] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3948, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3949 ./strace-static-x86_64: Process 3949 attached [pid 3949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3949] setpgid(0, 0) = 0 [pid 3949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3949] write(3, "1000", 4) = 4 [pid 3949] close(3) = 0 [pid 3949] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3949] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3949] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3949] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3949] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.066730][ T3946] overlayfs: filesystem on './bus' not supported as upperdir [ 58.084785][ T3947] overlayfs: filesystem on './bus' not supported as upperdir [ 58.101538][ T3948] overlayfs: filesystem on './bus' not supported as upperdir [pid 3949] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3949] chdir("./bus") = 0 [pid 3949] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3949] exit_group(0) = ? [pid 3949] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3949, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3950 ./strace-static-x86_64: Process 3950 attached [pid 3950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3950] setpgid(0, 0) = 0 [pid 3950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3950] write(3, "1000", 4) = 4 [pid 3950] close(3) = 0 [pid 3950] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3950] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3950] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3950] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3950] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3950] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3950] chdir("./bus") = 0 [pid 3950] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3950] exit_group(0) = ? [pid 3950] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3950, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3951 ./strace-static-x86_64: Process 3951 attached [pid 3951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3951] setpgid(0, 0) = 0 [pid 3951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3951] write(3, "1000", 4) = 4 [pid 3951] close(3) = 0 [pid 3951] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3951] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3951] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3951] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3951] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3951] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3951] chdir("./bus") = 0 [pid 3951] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3951] exit_group(0) = ? [pid 3951] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3951, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3952 ./strace-static-x86_64: Process 3952 attached [pid 3952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3952] setpgid(0, 0) = 0 [pid 3952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3952] write(3, "1000", 4) = 4 [pid 3952] close(3) = 0 [pid 3952] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3952] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3952] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3952] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3952] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.116944][ T3949] overlayfs: filesystem on './bus' not supported as upperdir [ 58.142224][ T3950] overlayfs: filesystem on './bus' not supported as upperdir [ 58.158312][ T3951] overlayfs: filesystem on './bus' not supported as upperdir [pid 3952] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3952] chdir("./bus") = 0 [pid 3952] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3952] exit_group(0) = ? [pid 3952] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3952, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3953 ./strace-static-x86_64: Process 3953 attached [pid 3953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3953] setpgid(0, 0) = 0 [pid 3953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3953] write(3, "1000", 4) = 4 [pid 3953] close(3) = 0 [pid 3953] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3953] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3953] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3953] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3953] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3953] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3953] chdir("./bus") = 0 [pid 3953] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3953] exit_group(0) = ? [pid 3953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3953, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3954 ./strace-static-x86_64: Process 3954 attached [pid 3954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3954] setpgid(0, 0) = 0 [pid 3954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3954] write(3, "1000", 4) = 4 [pid 3954] close(3) = 0 [pid 3954] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3954] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3954] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3954] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3954] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3954] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3954] chdir("./bus") = 0 [pid 3954] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3954] exit_group(0) = ? [pid 3954] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3954, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3955 ./strace-static-x86_64: Process 3955 attached [pid 3955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3955] setpgid(0, 0) = 0 [pid 3955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3955] write(3, "1000", 4) = 4 [pid 3955] close(3) = 0 [pid 3955] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3955] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3955] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3955] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3955] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.173990][ T3952] overlayfs: filesystem on './bus' not supported as upperdir [ 58.189646][ T3953] overlayfs: filesystem on './bus' not supported as upperdir [ 58.205539][ T3954] overlayfs: filesystem on './bus' not supported as upperdir [pid 3955] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3955] chdir("./bus") = 0 [pid 3955] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3955] exit_group(0) = ? [pid 3955] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3955, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3956 ./strace-static-x86_64: Process 3956 attached [pid 3956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3956] setpgid(0, 0) = 0 [pid 3956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3956] write(3, "1000", 4) = 4 [pid 3956] close(3) = 0 [pid 3956] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3956] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3956] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3956] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3956] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3956] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3956] chdir("./bus") = 0 [pid 3956] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3956] exit_group(0) = ? [pid 3956] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3956, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3957 ./strace-static-x86_64: Process 3957 attached [pid 3957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3957] setpgid(0, 0) = 0 [pid 3957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3957] write(3, "1000", 4) = 4 [pid 3957] close(3) = 0 [pid 3957] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3957] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3957] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3957] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3957] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3957] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3957] chdir("./bus") = 0 [pid 3957] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3957] exit_group(0) = ? [pid 3957] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3957, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3958 ./strace-static-x86_64: Process 3958 attached [pid 3958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3958] setpgid(0, 0) = 0 [pid 3958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3958] write(3, "1000", 4) = 4 [pid 3958] close(3) = 0 [pid 3958] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3958] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3958] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3958] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3958] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.222362][ T3955] overlayfs: filesystem on './bus' not supported as upperdir [ 58.238222][ T3956] overlayfs: filesystem on './bus' not supported as upperdir [ 58.253665][ T3957] overlayfs: filesystem on './bus' not supported as upperdir [pid 3958] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3958] chdir("./bus") = 0 [pid 3958] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3958] exit_group(0) = ? [pid 3958] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3958, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3959 ./strace-static-x86_64: Process 3959 attached [pid 3959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3959] setpgid(0, 0) = 0 [pid 3959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3959] write(3, "1000", 4) = 4 [pid 3959] close(3) = 0 [pid 3959] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3959] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3959] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3959] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3959] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3959] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3959] chdir("./bus") = 0 [pid 3959] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3959] exit_group(0) = ? [pid 3959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3959, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3960 ./strace-static-x86_64: Process 3960 attached [pid 3960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3960] setpgid(0, 0) = 0 [pid 3960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3960] write(3, "1000", 4) = 4 [pid 3960] close(3) = 0 [pid 3960] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3960] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3960] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3960] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3960] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3960] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3960] chdir("./bus") = 0 [pid 3960] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3960] exit_group(0) = ? [pid 3960] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3960, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3961 ./strace-static-x86_64: Process 3961 attached [pid 3961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3961] setpgid(0, 0) = 0 [pid 3961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3961] write(3, "1000", 4) = 4 [pid 3961] close(3) = 0 [pid 3961] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3961] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3961] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3961] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3961] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.270226][ T3958] overlayfs: filesystem on './bus' not supported as upperdir [ 58.286477][ T3959] overlayfs: filesystem on './bus' not supported as upperdir [ 58.303758][ T3960] overlayfs: filesystem on './bus' not supported as upperdir [pid 3961] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3961] chdir("./bus") = 0 [pid 3961] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3961] exit_group(0) = ? [pid 3961] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3961, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3962 ./strace-static-x86_64: Process 3962 attached [pid 3962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3962] setpgid(0, 0) = 0 [pid 3962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3962] write(3, "1000", 4) = 4 [pid 3962] close(3) = 0 [pid 3962] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3962] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3962] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3962] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3962] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3962] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3962] chdir("./bus") = 0 [pid 3962] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3962] exit_group(0) = ? [pid 3962] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3962, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3963 ./strace-static-x86_64: Process 3963 attached [pid 3963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3963] setpgid(0, 0) = 0 [pid 3963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3963] write(3, "1000", 4) = 4 [pid 3963] close(3) = 0 [pid 3963] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3963] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3963] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3963] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3963] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3963] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3963] chdir("./bus") = 0 [pid 3963] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3963] exit_group(0) = ? [pid 3963] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3963, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3964 ./strace-static-x86_64: Process 3964 attached [pid 3964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3964] setpgid(0, 0) = 0 [pid 3964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3964] write(3, "1000", 4) = 4 [pid 3964] close(3) = 0 [pid 3964] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3964] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3964] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3964] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3964] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.320285][ T3961] overlayfs: filesystem on './bus' not supported as upperdir [ 58.336276][ T3962] overlayfs: filesystem on './bus' not supported as upperdir [ 58.354590][ T3963] overlayfs: filesystem on './bus' not supported as upperdir [pid 3964] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3964] chdir("./bus") = 0 [pid 3964] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3964] exit_group(0) = ? [pid 3964] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3964, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3965 attached , child_tidptr=0x5555571cf5d0) = 3965 [pid 3965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3965] setpgid(0, 0) = 0 [pid 3965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3965] write(3, "1000", 4) = 4 [pid 3965] close(3) = 0 [pid 3965] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3965] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3965] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3965] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3965] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3965] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3965] chdir("./bus") = 0 [pid 3965] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3965] exit_group(0) = ? [pid 3965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3965, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3966 ./strace-static-x86_64: Process 3966 attached [pid 3966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3966] setpgid(0, 0) = 0 [pid 3966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3966] write(3, "1000", 4) = 4 [pid 3966] close(3) = 0 [pid 3966] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3966] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3966] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3966] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3966] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3966] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3966] chdir("./bus") = 0 [pid 3966] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3966] exit_group(0) = ? [pid 3966] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3966, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3967 attached , child_tidptr=0x5555571cf5d0) = 3967 [pid 3967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3967] setpgid(0, 0) = 0 [pid 3967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3967] write(3, "1000", 4) = 4 [pid 3967] close(3) = 0 [pid 3967] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3967] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3967] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3967] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3967] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.371421][ T3964] overlayfs: filesystem on './bus' not supported as upperdir [ 58.387285][ T3965] overlayfs: filesystem on './bus' not supported as upperdir [ 58.402597][ T3966] overlayfs: filesystem on './bus' not supported as upperdir [pid 3967] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3967] chdir("./bus") = 0 [pid 3967] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3967] exit_group(0) = ? [pid 3967] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3967, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3968 attached , child_tidptr=0x5555571cf5d0) = 3968 [pid 3968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3968] setpgid(0, 0) = 0 [pid 3968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3968] write(3, "1000", 4) = 4 [pid 3968] close(3) = 0 [pid 3968] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3968] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3968] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3968] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3968] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3968] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3968] chdir("./bus") = 0 [pid 3968] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3968] exit_group(0) = ? [pid 3968] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3968, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3969 attached , child_tidptr=0x5555571cf5d0) = 3969 [pid 3969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3969] setpgid(0, 0) = 0 [pid 3969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3969] write(3, "1000", 4) = 4 [pid 3969] close(3) = 0 [pid 3969] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3969] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3969] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3969] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3969] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3969] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3969] chdir("./bus") = 0 [pid 3969] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3969] exit_group(0) = ? [pid 3969] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3969, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3970 ./strace-static-x86_64: Process 3970 attached [pid 3970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3970] setpgid(0, 0) = 0 [pid 3970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3970] write(3, "1000", 4) = 4 [pid 3970] close(3) = 0 [pid 3970] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3970] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3970] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3970] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3970] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.420438][ T3967] overlayfs: filesystem on './bus' not supported as upperdir [ 58.436715][ T3968] overlayfs: filesystem on './bus' not supported as upperdir [ 58.454543][ T3969] overlayfs: filesystem on './bus' not supported as upperdir [pid 3970] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3970] chdir("./bus") = 0 [pid 3970] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3970] exit_group(0) = ? [pid 3970] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3970, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3971 attached , child_tidptr=0x5555571cf5d0) = 3971 [pid 3971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3971] setpgid(0, 0) = 0 [pid 3971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3971] write(3, "1000", 4) = 4 [pid 3971] close(3) = 0 [pid 3971] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3971] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3971] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3971] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3971] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3971] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3971] chdir("./bus") = 0 [pid 3971] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3971] exit_group(0) = ? [pid 3971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3971, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3972 ./strace-static-x86_64: Process 3972 attached [pid 3972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3972] setpgid(0, 0) = 0 [pid 3972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3972] write(3, "1000", 4) = 4 [pid 3972] close(3) = 0 [pid 3972] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3972] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3972] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3972] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3972] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3972] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3972] chdir("./bus") = 0 [pid 3972] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3972] exit_group(0) = ? [pid 3972] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3972, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3973 ./strace-static-x86_64: Process 3973 attached [pid 3973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3973] setpgid(0, 0) = 0 [pid 3973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3973] write(3, "1000", 4) = 4 [pid 3973] close(3) = 0 [pid 3973] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3973] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3973] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3973] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3973] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.470978][ T3970] overlayfs: filesystem on './bus' not supported as upperdir [ 58.489788][ T3971] overlayfs: filesystem on './bus' not supported as upperdir [ 58.506685][ T3972] overlayfs: filesystem on './bus' not supported as upperdir [pid 3973] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3973] chdir("./bus") = 0 [pid 3973] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3973] exit_group(0) = ? [pid 3973] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3973, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3974 ./strace-static-x86_64: Process 3974 attached [pid 3974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3974] setpgid(0, 0) = 0 [pid 3974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3974] write(3, "1000", 4) = 4 [pid 3974] close(3) = 0 [pid 3974] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3974] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3974] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3974] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3974] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3974] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3974] chdir("./bus") = 0 [pid 3974] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3974] exit_group(0) = ? [pid 3974] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3974, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3975 ./strace-static-x86_64: Process 3975 attached [pid 3975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3975] setpgid(0, 0) = 0 [pid 3975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3975] write(3, "1000", 4) = 4 [pid 3975] close(3) = 0 [pid 3975] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3975] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3975] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3975] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3975] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3975] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3975] chdir("./bus") = 0 [pid 3975] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3975] exit_group(0) = ? [pid 3975] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3975, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3976 ./strace-static-x86_64: Process 3976 attached [pid 3976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3976] setpgid(0, 0) = 0 [pid 3976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3976] write(3, "1000", 4) = 4 [pid 3976] close(3) = 0 [pid 3976] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3976] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3976] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3976] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3976] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.523935][ T3973] overlayfs: filesystem on './bus' not supported as upperdir [ 58.540138][ T3974] overlayfs: filesystem on './bus' not supported as upperdir [ 58.558609][ T3975] overlayfs: filesystem on './bus' not supported as upperdir [pid 3976] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3976] chdir("./bus") = 0 [pid 3976] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3976] exit_group(0) = ? [pid 3976] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3976, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3977 ./strace-static-x86_64: Process 3977 attached [pid 3977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3977] setpgid(0, 0) = 0 [pid 3977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3977] write(3, "1000", 4) = 4 [pid 3977] close(3) = 0 [pid 3977] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3977] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3977] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3977] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3977] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3977] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3977] chdir("./bus") = 0 [pid 3977] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3977] exit_group(0) = ? [pid 3977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3977, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3978 ./strace-static-x86_64: Process 3978 attached [pid 3978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3978] setpgid(0, 0) = 0 [pid 3978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3978] write(3, "1000", 4) = 4 [pid 3978] close(3) = 0 [pid 3978] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3978] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3978] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3978] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3978] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3978] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3978] chdir("./bus") = 0 [pid 3978] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3978] exit_group(0) = ? [pid 3978] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3978, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3979 ./strace-static-x86_64: Process 3979 attached [pid 3979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3979] setpgid(0, 0) = 0 [pid 3979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3979] write(3, "1000", 4) = 4 [pid 3979] close(3) = 0 [pid 3979] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3979] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3979] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3979] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3979] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.584619][ T3976] overlayfs: filesystem on './bus' not supported as upperdir [ 58.601114][ T3977] overlayfs: filesystem on './bus' not supported as upperdir [ 58.617464][ T3978] overlayfs: filesystem on './bus' not supported as upperdir [pid 3979] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3979] chdir("./bus") = 0 [pid 3979] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3979] exit_group(0) = ? [pid 3979] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3979, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3980 ./strace-static-x86_64: Process 3980 attached [pid 3980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3980] setpgid(0, 0) = 0 [pid 3980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3980] write(3, "1000", 4) = 4 [pid 3980] close(3) = 0 [pid 3980] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3980] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3980] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3980] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3980] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3980] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3980] chdir("./bus") = 0 [pid 3980] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3980] exit_group(0) = ? [pid 3980] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3980, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3981 attached , child_tidptr=0x5555571cf5d0) = 3981 [pid 3981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3981] setpgid(0, 0) = 0 [pid 3981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3981] write(3, "1000", 4) = 4 [pid 3981] close(3) = 0 [pid 3981] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3981] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3981] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3981] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3981] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3981] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3981] chdir("./bus") = 0 [pid 3981] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3981] exit_group(0) = ? [pid 3981] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3981, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3982 ./strace-static-x86_64: Process 3982 attached [pid 3982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3982] setpgid(0, 0) = 0 [pid 3982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3982] write(3, "1000", 4) = 4 [pid 3982] close(3) = 0 [pid 3982] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3982] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3982] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3982] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3982] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.634874][ T3979] overlayfs: filesystem on './bus' not supported as upperdir [ 58.652499][ T3980] overlayfs: filesystem on './bus' not supported as upperdir [ 58.670391][ T3981] overlayfs: filesystem on './bus' not supported as upperdir [pid 3982] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3982] chdir("./bus") = 0 [pid 3982] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3982] exit_group(0) = ? [pid 3982] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3982, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3983 ./strace-static-x86_64: Process 3983 attached [pid 3983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3983] setpgid(0, 0) = 0 [pid 3983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3983] write(3, "1000", 4) = 4 [pid 3983] close(3) = 0 [pid 3983] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3983] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3983] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3983] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3983] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3983] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3983] chdir("./bus") = 0 [pid 3983] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3983] exit_group(0) = ? [pid 3983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3983, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3984 ./strace-static-x86_64: Process 3984 attached [pid 3984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3984] setpgid(0, 0) = 0 [pid 3984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3984] write(3, "1000", 4) = 4 [pid 3984] close(3) = 0 [pid 3984] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3984] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3984] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3984] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3984] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3984] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3984] chdir("./bus") = 0 [pid 3984] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3984] exit_group(0) = ? [pid 3984] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3984, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3985 ./strace-static-x86_64: Process 3985 attached [pid 3985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3985] setpgid(0, 0) = 0 [pid 3985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3985] write(3, "1000", 4) = 4 [pid 3985] close(3) = 0 [pid 3985] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3985] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3985] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3985] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3985] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.687467][ T3982] overlayfs: filesystem on './bus' not supported as upperdir [ 58.714466][ T3983] overlayfs: filesystem on './bus' not supported as upperdir [ 58.729529][ T3984] overlayfs: filesystem on './bus' not supported as upperdir [pid 3985] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3985] chdir("./bus") = 0 [pid 3985] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3985] exit_group(0) = ? [pid 3985] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3985, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3986 ./strace-static-x86_64: Process 3986 attached [pid 3986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3986] setpgid(0, 0) = 0 [pid 3986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3986] write(3, "1000", 4) = 4 [pid 3986] close(3) = 0 [pid 3986] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3986] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3986] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3986] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3986] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3986] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3986] chdir("./bus") = 0 [pid 3986] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3986] exit_group(0) = ? [pid 3986] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3986, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3987 attached [pid 3987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3987] setpgid(0, 0) = 0 [pid 3987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 3987 [pid 3987] <... openat resumed>) = 3 [pid 3987] write(3, "1000", 4) = 4 [pid 3987] close(3) = 0 [pid 3987] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3987] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3987] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3987] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3987] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3987] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3987] chdir("./bus") = 0 [pid 3987] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3987] exit_group(0) = ? [pid 3987] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3987, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3988 ./strace-static-x86_64: Process 3988 attached [pid 3988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3988] setpgid(0, 0) = 0 [pid 3988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3988] write(3, "1000", 4) = 4 [pid 3988] close(3) = 0 [pid 3988] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3988] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3988] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3988] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3988] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.759488][ T3985] overlayfs: filesystem on './bus' not supported as upperdir [ 58.776896][ T3986] overlayfs: filesystem on './bus' not supported as upperdir [ 58.793549][ T3987] overlayfs: filesystem on './bus' not supported as upperdir [pid 3988] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3988] chdir("./bus") = 0 [pid 3988] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3988] exit_group(0) = ? [pid 3988] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3988, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3989 ./strace-static-x86_64: Process 3989 attached [pid 3989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3989] setpgid(0, 0) = 0 [pid 3989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3989] write(3, "1000", 4) = 4 [pid 3989] close(3) = 0 [pid 3989] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3989] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3989] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3989] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3989] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3989] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3989] chdir("./bus") = 0 [pid 3989] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3989] exit_group(0) = ? [pid 3989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3989, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3990 ./strace-static-x86_64: Process 3990 attached [pid 3990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3990] setpgid(0, 0) = 0 [pid 3990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3990] write(3, "1000", 4) = 4 [pid 3990] close(3) = 0 [pid 3990] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3990] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3990] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3990] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3990] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3990] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3990] chdir("./bus") = 0 [pid 3990] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3990] exit_group(0) = ? [pid 3990] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3990, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3991 ./strace-static-x86_64: Process 3991 attached [pid 3991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3991] setpgid(0, 0) = 0 [pid 3991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3991] write(3, "1000", 4) = 4 [pid 3991] close(3) = 0 [pid 3991] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3991] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3991] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3991] mkdir("./bus", 000) = -1 EEXIST (File exists) [ 58.811560][ T3988] overlayfs: filesystem on './bus' not supported as upperdir [ 58.828856][ T3989] overlayfs: filesystem on './bus' not supported as upperdir [ 58.845686][ T3990] overlayfs: filesystem on './bus' not supported as upperdir [pid 3991] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3991] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3991] chdir("./bus") = 0 [pid 3991] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3991] exit_group(0) = ? [pid 3991] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3991, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3992 ./strace-static-x86_64: Process 3992 attached [pid 3992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3992] setpgid(0, 0) = 0 [pid 3992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3992] write(3, "1000", 4) = 4 [pid 3992] close(3) = 0 [pid 3992] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3992] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3992] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3992] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3992] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3992] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3992] chdir("./bus") = 0 [pid 3992] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3992] exit_group(0) = ? [pid 3992] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3992, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3993 ./strace-static-x86_64: Process 3993 attached [pid 3993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3993] setpgid(0, 0) = 0 [pid 3993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3993] write(3, "1000", 4) = 4 [pid 3993] close(3) = 0 [pid 3993] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3993] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3993] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3993] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3993] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3993] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3993] chdir("./bus") = 0 [pid 3993] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3993] exit_group(0) = ? [pid 3993] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3993, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3994 attached , child_tidptr=0x5555571cf5d0) = 3994 [pid 3994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3994] setpgid(0, 0) = 0 [pid 3994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3994] write(3, "1000", 4) = 4 [pid 3994] close(3) = 0 [pid 3994] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3994] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3994] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3994] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3994] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.862233][ T3991] overlayfs: filesystem on './bus' not supported as upperdir [ 58.878856][ T3992] overlayfs: filesystem on './bus' not supported as upperdir [ 58.897040][ T3993] overlayfs: filesystem on './bus' not supported as upperdir [pid 3994] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3994] chdir("./bus") = 0 [pid 3994] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3994] exit_group(0) = ? [pid 3994] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3994, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3995 ./strace-static-x86_64: Process 3995 attached [pid 3995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3995] setpgid(0, 0) = 0 [pid 3995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3995] write(3, "1000", 4) = 4 [pid 3995] close(3) = 0 [pid 3995] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3995] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3995] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3995] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3995] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3995] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3995] chdir("./bus") = 0 [pid 3995] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3995] exit_group(0) = ? [pid 3995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3995, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3996 ./strace-static-x86_64: Process 3996 attached [pid 3996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3996] setpgid(0, 0) = 0 [pid 3996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3996] write(3, "1000", 4) = 4 [pid 3996] close(3) = 0 [pid 3996] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3996] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3996] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3996] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3996] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3996] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3996] chdir("./bus") = 0 [pid 3996] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3996] exit_group(0) = ? [pid 3996] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3996, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3997 ./strace-static-x86_64: Process 3997 attached [pid 3997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3997] setpgid(0, 0) = 0 [pid 3997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3997] write(3, "1000", 4) = 4 [pid 3997] close(3) = 0 [pid 3997] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3997] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3997] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3997] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3997] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.913148][ T3994] overlayfs: filesystem on './bus' not supported as upperdir [ 58.930603][ T3995] overlayfs: filesystem on './bus' not supported as upperdir [ 58.948185][ T3996] overlayfs: filesystem on './bus' not supported as upperdir [pid 3997] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3997] chdir("./bus") = 0 [pid 3997] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3997] exit_group(0) = ? [pid 3997] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3997, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3998 attached , child_tidptr=0x5555571cf5d0) = 3998 [pid 3998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3998] setpgid(0, 0) = 0 [pid 3998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3998] write(3, "1000", 4) = 4 [pid 3998] close(3) = 0 [pid 3998] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3998] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3998] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3998] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3998] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3998] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3998] chdir("./bus") = 0 [pid 3998] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3998] exit_group(0) = ? [pid 3998] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3998, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 3999 ./strace-static-x86_64: Process 3999 attached [pid 3999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3999] setpgid(0, 0) = 0 [pid 3999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3999] write(3, "1000", 4) = 4 [pid 3999] close(3) = 0 [pid 3999] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 3999] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 3999] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 3999] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 3999] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 3999] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 3999] chdir("./bus") = 0 [pid 3999] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 3999] exit_group(0) = ? [pid 3999] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3999, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4000 ./strace-static-x86_64: Process 4000 attached [pid 4000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4000] setpgid(0, 0) = 0 [pid 4000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4000] write(3, "1000", 4) = 4 [pid 4000] close(3) = 0 [pid 4000] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4000] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4000] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4000] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4000] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 58.975333][ T3997] overlayfs: filesystem on './bus' not supported as upperdir [ 58.994511][ T3998] overlayfs: filesystem on './bus' not supported as upperdir [ 59.011102][ T3999] overlayfs: filesystem on './bus' not supported as upperdir [pid 4000] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4000] chdir("./bus") = 0 [pid 4000] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4000] exit_group(0) = ? [pid 4000] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4000, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4001 ./strace-static-x86_64: Process 4001 attached [pid 4001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4001] setpgid(0, 0) = 0 [pid 4001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4001] write(3, "1000", 4) = 4 [pid 4001] close(3) = 0 [pid 4001] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4001] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4001] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4001] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4001] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4001] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4001] chdir("./bus") = 0 [pid 4001] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4001] exit_group(0) = ? [pid 4001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4001, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4002 ./strace-static-x86_64: Process 4002 attached [pid 4002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4002] setpgid(0, 0) = 0 [pid 4002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4002] write(3, "1000", 4) = 4 [pid 4002] close(3) = 0 [pid 4002] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4002] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4002] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4002] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4002] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4002] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4002] chdir("./bus") = 0 [pid 4002] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4002] exit_group(0) = ? [pid 4002] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4002, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4003 ./strace-static-x86_64: Process 4003 attached [pid 4003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4003] setpgid(0, 0) = 0 [pid 4003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4003] write(3, "1000", 4) = 4 [pid 4003] close(3) = 0 [pid 4003] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4003] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4003] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4003] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4003] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.030399][ T4000] overlayfs: filesystem on './bus' not supported as upperdir [ 59.047064][ T4001] overlayfs: filesystem on './bus' not supported as upperdir [ 59.063501][ T4002] overlayfs: filesystem on './bus' not supported as upperdir [pid 4003] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4003] chdir("./bus") = 0 [pid 4003] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4003] exit_group(0) = ? [pid 4003] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4003, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4004 ./strace-static-x86_64: Process 4004 attached [pid 4004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4004] setpgid(0, 0) = 0 [pid 4004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4004] write(3, "1000", 4) = 4 [pid 4004] close(3) = 0 [pid 4004] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4004] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4004] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4004] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4004] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4004] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4004] chdir("./bus") = 0 [pid 4004] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4004] exit_group(0) = ? [pid 4004] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4004, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4005 ./strace-static-x86_64: Process 4005 attached [pid 4005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4005] setpgid(0, 0) = 0 [pid 4005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4005] write(3, "1000", 4) = 4 [pid 4005] close(3) = 0 [pid 4005] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4005] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4005] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4005] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4005] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4005] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4005] chdir("./bus") = 0 [pid 4005] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4005] exit_group(0) = ? [pid 4005] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4005, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4006 ./strace-static-x86_64: Process 4006 attached [pid 4006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4006] setpgid(0, 0) = 0 [pid 4006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4006] write(3, "1000", 4) = 4 [pid 4006] close(3) = 0 [pid 4006] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4006] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4006] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4006] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4006] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.084179][ T4003] overlayfs: filesystem on './bus' not supported as upperdir [ 59.101398][ T4004] overlayfs: filesystem on './bus' not supported as upperdir [ 59.120456][ T4005] overlayfs: filesystem on './bus' not supported as upperdir [pid 4006] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4006] chdir("./bus") = 0 [pid 4006] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4006] exit_group(0) = ? [pid 4006] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4006, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4007 ./strace-static-x86_64: Process 4007 attached [pid 4007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4007] setpgid(0, 0) = 0 [pid 4007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4007] write(3, "1000", 4) = 4 [pid 4007] close(3) = 0 [pid 4007] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4007] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4007] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4007] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4007] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4007] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4007] chdir("./bus") = 0 [pid 4007] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4007] exit_group(0) = ? [pid 4007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4007, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4008 attached , child_tidptr=0x5555571cf5d0) = 4008 [pid 4008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4008] setpgid(0, 0) = 0 [pid 4008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4008] write(3, "1000", 4) = 4 [pid 4008] close(3) = 0 [pid 4008] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4008] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4008] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4008] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4008] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4008] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4008] chdir("./bus") = 0 [pid 4008] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4008] exit_group(0) = ? [pid 4008] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4008, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4009 attached [pid 4009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4009] setpgid(0, 0) = 0 [pid 4009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4009] write(3, "1000", 4) = 4 [pid 4009] close(3) = 0 [pid 4009] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 4009 [pid 4009] <... openat resumed>) = 3 [pid 4009] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4009] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4009] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4009] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.136987][ T4006] overlayfs: filesystem on './bus' not supported as upperdir [ 59.156417][ T4007] overlayfs: filesystem on './bus' not supported as upperdir [ 59.173676][ T4008] overlayfs: filesystem on './bus' not supported as upperdir [pid 4009] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4009] chdir("./bus") = 0 [pid 4009] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4009] exit_group(0) = ? [pid 4009] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4009, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4010 ./strace-static-x86_64: Process 4010 attached [pid 4010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4010] setpgid(0, 0) = 0 [pid 4010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4010] write(3, "1000", 4) = 4 [pid 4010] close(3) = 0 [pid 4010] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4010] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4010] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4010] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4010] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4010] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4010] chdir("./bus") = 0 [pid 4010] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4010] exit_group(0) = ? [pid 4010] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4010, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4011 ./strace-static-x86_64: Process 4011 attached [pid 4011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4011] setpgid(0, 0) = 0 [pid 4011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4011] write(3, "1000", 4) = 4 [pid 4011] close(3) = 0 [pid 4011] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4011] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4011] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4011] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4011] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.189985][ T4009] overlayfs: filesystem on './bus' not supported as upperdir [ 59.207481][ T4010] overlayfs: filesystem on './bus' not supported as upperdir [pid 4011] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4011] chdir("./bus") = 0 [pid 4011] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4011] exit_group(0) = ? [pid 4011] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4011, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4012 ./strace-static-x86_64: Process 4012 attached [pid 4012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4012] setpgid(0, 0) = 0 [pid 4012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4012] write(3, "1000", 4) = 4 [pid 4012] close(3) = 0 [pid 4012] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4012] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4012] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4012] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4012] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4012] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4012] chdir("./bus") = 0 [pid 4012] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4012] exit_group(0) = ? [pid 4012] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4012, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4013 ./strace-static-x86_64: Process 4013 attached [pid 4013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4013] setpgid(0, 0) = 0 [pid 4013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4013] write(3, "1000", 4) = 4 [pid 4013] close(3) = 0 [pid 4013] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4013] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4013] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4013] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4013] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4013] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4013] chdir("./bus") = 0 [pid 4013] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4013] exit_group(0) = ? [pid 4013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4013, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4014 ./strace-static-x86_64: Process 4014 attached [pid 4014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4014] setpgid(0, 0) = 0 [pid 4014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4014] write(3, "1000", 4) = 4 [pid 4014] close(3) = 0 [pid 4014] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4014] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4014] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4014] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4014] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.237196][ T4011] overlayfs: filesystem on './bus' not supported as upperdir [ 59.256188][ T4012] overlayfs: filesystem on './bus' not supported as upperdir [ 59.273807][ T4013] overlayfs: filesystem on './bus' not supported as upperdir [pid 4014] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4014] chdir("./bus") = 0 [pid 4014] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4014] exit_group(0) = ? [pid 4014] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4014, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4015 attached , child_tidptr=0x5555571cf5d0) = 4015 [pid 4015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4015] setpgid(0, 0) = 0 [pid 4015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4015] write(3, "1000", 4) = 4 [pid 4015] close(3) = 0 [pid 4015] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4015] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4015] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4015] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4015] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4015] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4015] chdir("./bus") = 0 [pid 4015] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4015] exit_group(0) = ? [pid 4015] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4015, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4016 ./strace-static-x86_64: Process 4016 attached [pid 4016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4016] setpgid(0, 0) = 0 [pid 4016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4016] write(3, "1000", 4) = 4 [pid 4016] close(3) = 0 [pid 4016] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4016] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4016] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4016] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4016] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4016] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4016] chdir("./bus") = 0 [pid 4016] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4016] exit_group(0) = ? [pid 4016] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4016, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4017 ./strace-static-x86_64: Process 4017 attached [pid 4017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4017] setpgid(0, 0) = 0 [pid 4017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4017] write(3, "1000", 4) = 4 [pid 4017] close(3) = 0 [pid 4017] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4017] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4017] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4017] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4017] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.291296][ T4014] overlayfs: filesystem on './bus' not supported as upperdir [ 59.310076][ T4015] overlayfs: filesystem on './bus' not supported as upperdir [ 59.326572][ T4016] overlayfs: filesystem on './bus' not supported as upperdir [pid 4017] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4017] chdir("./bus") = 0 [pid 4017] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4017] exit_group(0) = ? [pid 4017] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4017, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4018 ./strace-static-x86_64: Process 4018 attached [pid 4018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4018] setpgid(0, 0) = 0 [pid 4018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4018] write(3, "1000", 4) = 4 [pid 4018] close(3) = 0 [pid 4018] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4018] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4018] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4018] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4018] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4018] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4018] chdir("./bus") = 0 [pid 4018] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4018] exit_group(0) = ? [pid 4018] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4018, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4019 ./strace-static-x86_64: Process 4019 attached [pid 4019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4019] setpgid(0, 0) = 0 [pid 4019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4019] write(3, "1000", 4) = 4 [pid 4019] close(3) = 0 [pid 4019] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4019] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4019] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4019] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4019] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4019] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4019] chdir("./bus") = 0 [pid 4019] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4019] exit_group(0) = ? [pid 4019] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4019, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4020 ./strace-static-x86_64: Process 4020 attached [pid 4020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4020] setpgid(0, 0) = 0 [pid 4020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4020] write(3, "1000", 4) = 4 [pid 4020] close(3) = 0 [pid 4020] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4020] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4020] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4020] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4020] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.342600][ T4017] overlayfs: filesystem on './bus' not supported as upperdir [ 59.358563][ T4018] overlayfs: filesystem on './bus' not supported as upperdir [ 59.376816][ T4019] overlayfs: filesystem on './bus' not supported as upperdir [pid 4020] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4020] chdir("./bus") = 0 [pid 4020] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4020] exit_group(0) = ? [pid 4020] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4020, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4021 ./strace-static-x86_64: Process 4021 attached [pid 4021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4021] setpgid(0, 0) = 0 [pid 4021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4021] write(3, "1000", 4) = 4 [pid 4021] close(3) = 0 [pid 4021] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4021] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4021] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4021] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4021] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4021] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4021] chdir("./bus") = 0 [pid 4021] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4021] exit_group(0) = ? [pid 4021] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4021, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4022 ./strace-static-x86_64: Process 4022 attached [pid 4022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4022] setpgid(0, 0) = 0 [pid 4022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4022] write(3, "1000", 4) = 4 [pid 4022] close(3) = 0 [pid 4022] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4022] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4022] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4022] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4022] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4022] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4022] chdir("./bus") = 0 [pid 4022] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4022] exit_group(0) = ? [pid 4022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4022, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4023 ./strace-static-x86_64: Process 4023 attached [pid 4023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4023] setpgid(0, 0) = 0 [pid 4023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4023] write(3, "1000", 4) = 4 [pid 4023] close(3) = 0 [pid 4023] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4023] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4023] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4023] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4023] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.393740][ T4020] overlayfs: filesystem on './bus' not supported as upperdir [ 59.410143][ T4021] overlayfs: filesystem on './bus' not supported as upperdir [ 59.427551][ T4022] overlayfs: filesystem on './bus' not supported as upperdir [pid 4023] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4023] chdir("./bus") = 0 [pid 4023] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4023] exit_group(0) = ? [pid 4023] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4023, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4024 ./strace-static-x86_64: Process 4024 attached [pid 4024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4024] setpgid(0, 0) = 0 [pid 4024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4024] write(3, "1000", 4) = 4 [pid 4024] close(3) = 0 [pid 4024] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4024] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4024] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4024] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4024] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4024] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4024] chdir("./bus") = 0 [pid 4024] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4024] exit_group(0) = ? [pid 4024] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4024, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4025 attached , child_tidptr=0x5555571cf5d0) = 4025 [pid 4025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4025] setpgid(0, 0) = 0 [pid 4025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4025] write(3, "1000", 4) = 4 [pid 4025] close(3) = 0 [pid 4025] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4025] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4025] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4025] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4025] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.445190][ T4023] overlayfs: filesystem on './bus' not supported as upperdir [ 59.463097][ T4024] overlayfs: filesystem on './bus' not supported as upperdir [pid 4025] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4025] chdir("./bus") = 0 [pid 4025] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4025] exit_group(0) = ? [pid 4025] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4025, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4026 ./strace-static-x86_64: Process 4026 attached [pid 4026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4026] setpgid(0, 0) = 0 [pid 4026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4026] write(3, "1000", 4) = 4 [pid 4026] close(3) = 0 [pid 4026] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4026] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4026] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4026] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4026] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4026] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4026] chdir("./bus") = 0 [pid 4026] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4026] exit_group(0) = ? [pid 4026] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4026, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4027 attached [pid 4027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4027] setpgid(0, 0) = 0 [pid 4027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 4027 [pid 4027] <... openat resumed>) = 3 [pid 4027] write(3, "1000", 4) = 4 [pid 4027] close(3) = 0 [pid 4027] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4027] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4027] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4027] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4027] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4027] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4027] chdir("./bus") = 0 [pid 4027] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4027] exit_group(0) = ? [pid 4027] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4027, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4028 [ 59.488394][ T4025] overlayfs: filesystem on './bus' not supported as upperdir [ 59.504601][ T4026] overlayfs: filesystem on './bus' not supported as upperdir [ 59.520475][ T4027] overlayfs: filesystem on './bus' not supported as upperdir ./strace-static-x86_64: Process 4028 attached [pid 4028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4028] setpgid(0, 0) = 0 [pid 4028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4028] write(3, "1000", 4) = 4 [pid 4028] close(3) = 0 [pid 4028] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4028] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4028] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4028] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4028] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4028] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4028] chdir("./bus") = 0 [pid 4028] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4028] exit_group(0) = ? [pid 4028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4028, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4029 attached , child_tidptr=0x5555571cf5d0) = 4029 [pid 4029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4029] setpgid(0, 0) = 0 [pid 4029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4029] write(3, "1000", 4) = 4 [pid 4029] close(3) = 0 [pid 4029] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4029] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4029] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4029] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4029] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4029] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4029] chdir("./bus") = 0 [pid 4029] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4029] exit_group(0) = ? [pid 4029] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4029, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4030 ./strace-static-x86_64: Process 4030 attached [pid 4030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4030] setpgid(0, 0) = 0 [pid 4030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4030] write(3, "1000", 4) = 4 [pid 4030] close(3) = 0 [pid 4030] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4030] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4030] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4030] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4030] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4030] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4030] chdir("./bus") = 0 [pid 4030] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4030] exit_group(0) = ? [pid 4030] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4030, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4031 ./strace-static-x86_64: Process 4031 attached [pid 4031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4031] setpgid(0, 0) = 0 [pid 4031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4031] write(3, "1000", 4) = 4 [pid 4031] close(3) = 0 [pid 4031] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4031] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4031] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4031] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4031] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.537417][ T4028] overlayfs: filesystem on './bus' not supported as upperdir [ 59.555592][ T4029] overlayfs: filesystem on './bus' not supported as upperdir [ 59.571995][ T4030] overlayfs: filesystem on './bus' not supported as upperdir [pid 4031] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4031] chdir("./bus") = 0 [pid 4031] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4031] exit_group(0) = ? [pid 4031] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4031, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4032 attached , child_tidptr=0x5555571cf5d0) = 4032 [pid 4032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4032] setpgid(0, 0) = 0 [pid 4032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4032] write(3, "1000", 4) = 4 [pid 4032] close(3) = 0 [pid 4032] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4032] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4032] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4032] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4032] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4032] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4032] chdir("./bus") = 0 [pid 4032] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4032] exit_group(0) = ? [pid 4032] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4032, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4033 ./strace-static-x86_64: Process 4033 attached [pid 4033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4033] setpgid(0, 0) = 0 [pid 4033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4033] write(3, "1000", 4) = 4 [pid 4033] close(3) = 0 [pid 4033] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4033] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4033] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4033] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4033] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4033] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4033] chdir("./bus") = 0 [pid 4033] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4033] exit_group(0) = ? [pid 4033] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4033, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4034 ./strace-static-x86_64: Process 4034 attached [pid 4034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4034] setpgid(0, 0) = 0 [pid 4034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4034] write(3, "1000", 4) = 4 [pid 4034] close(3) = 0 [pid 4034] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4034] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4034] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4034] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4034] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.588885][ T4031] overlayfs: filesystem on './bus' not supported as upperdir [ 59.607542][ T4032] overlayfs: filesystem on './bus' not supported as upperdir [ 59.625846][ T4033] overlayfs: filesystem on './bus' not supported as upperdir [pid 4034] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4034] chdir("./bus") = 0 [pid 4034] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4034] exit_group(0) = ? [pid 4034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4034, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4035 ./strace-static-x86_64: Process 4035 attached [pid 4035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4035] setpgid(0, 0) = 0 [pid 4035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4035] write(3, "1000", 4) = 4 [pid 4035] close(3) = 0 [pid 4035] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4035] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4035] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4035] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4035] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4035] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4035] chdir("./bus") = 0 [pid 4035] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4035] exit_group(0) = ? [pid 4035] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4035, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4036 ./strace-static-x86_64: Process 4036 attached [pid 4036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4036] setpgid(0, 0) = 0 [pid 4036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4036] write(3, "1000", 4) = 4 [pid 4036] close(3) = 0 [pid 4036] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4036] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4036] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4036] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4036] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4036] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4036] chdir("./bus") = 0 [pid 4036] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4036] exit_group(0) = ? [pid 4036] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4036, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4037 attached , child_tidptr=0x5555571cf5d0) = 4037 [pid 4037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4037] setpgid(0, 0) = 0 [pid 4037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4037] write(3, "1000", 4) = 4 [pid 4037] close(3) = 0 [pid 4037] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4037] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4037] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4037] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4037] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.641871][ T4034] overlayfs: filesystem on './bus' not supported as upperdir [ 59.660258][ T4035] overlayfs: filesystem on './bus' not supported as upperdir [ 59.678615][ T4036] overlayfs: filesystem on './bus' not supported as upperdir [pid 4037] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4037] chdir("./bus") = 0 [pid 4037] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4037] exit_group(0) = ? [pid 4037] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4037, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4038 ./strace-static-x86_64: Process 4038 attached [pid 4038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4038] setpgid(0, 0) = 0 [pid 4038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4038] write(3, "1000", 4) = 4 [pid 4038] close(3) = 0 [pid 4038] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4038] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4038] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4038] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4038] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4038] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4038] chdir("./bus") = 0 [pid 4038] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4038] exit_group(0) = ? [pid 4038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4038, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4039 ./strace-static-x86_64: Process 4039 attached [pid 4039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4039] setpgid(0, 0) = 0 [pid 4039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4039] write(3, "1000", 4) = 4 [pid 4039] close(3) = 0 [pid 4039] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4039] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4039] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4039] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4039] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4039] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4039] chdir("./bus") = 0 [pid 4039] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4039] exit_group(0) = ? [pid 4039] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4039, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4040 attached [pid 4040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4040] setpgid(0, 0) = 0 [pid 4040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 4040 [pid 4040] <... openat resumed>) = 3 [pid 4040] write(3, "1000", 4) = 4 [pid 4040] close(3) = 0 [pid 4040] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4040] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4040] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4040] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4040] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.697247][ T4037] overlayfs: filesystem on './bus' not supported as upperdir [ 59.714831][ T4038] overlayfs: filesystem on './bus' not supported as upperdir [ 59.732092][ T4039] overlayfs: filesystem on './bus' not supported as upperdir [pid 4040] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4040] chdir("./bus") = 0 [pid 4040] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4040] exit_group(0) = ? [pid 4040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4040, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4041 ./strace-static-x86_64: Process 4041 attached [pid 4041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4041] setpgid(0, 0) = 0 [pid 4041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4041] write(3, "1000", 4) = 4 [pid 4041] close(3) = 0 [pid 4041] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4041] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4041] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4041] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4041] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4041] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4041] chdir("./bus") = 0 [pid 4041] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4041] exit_group(0) = ? [pid 4041] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4041, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4042 ./strace-static-x86_64: Process 4042 attached [pid 4042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4042] setpgid(0, 0) = 0 [pid 4042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4042] write(3, "1000", 4) = 4 [pid 4042] close(3) = 0 [pid 4042] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4042] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4042] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4042] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4042] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4042] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4042] chdir("./bus") = 0 [pid 4042] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4042] exit_group(0) = ? [pid 4042] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4042, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4043 ./strace-static-x86_64: Process 4043 attached [pid 4043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4043] setpgid(0, 0) = 0 [pid 4043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4043] write(3, "1000", 4) = 4 [pid 4043] close(3) = 0 [pid 4043] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4043] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4043] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4043] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4043] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.750245][ T4040] overlayfs: filesystem on './bus' not supported as upperdir [ 59.765529][ T4041] overlayfs: filesystem on './bus' not supported as upperdir [ 59.784234][ T4042] overlayfs: filesystem on './bus' not supported as upperdir [pid 4043] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4043] chdir("./bus") = 0 [pid 4043] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4043] exit_group(0) = ? [pid 4043] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4043, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4044 ./strace-static-x86_64: Process 4044 attached [pid 4044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4044] setpgid(0, 0) = 0 [pid 4044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4044] write(3, "1000", 4) = 4 [pid 4044] close(3) = 0 [pid 4044] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4044] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4044] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4044] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4044] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4044] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4044] chdir("./bus") = 0 [pid 4044] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4044] exit_group(0) = ? [pid 4044] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4044, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4045 ./strace-static-x86_64: Process 4045 attached [pid 4045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4045] setpgid(0, 0) = 0 [pid 4045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4045] write(3, "1000", 4) = 4 [pid 4045] close(3) = 0 [pid 4045] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4045] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4045] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4045] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4045] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4045] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4045] chdir("./bus") = 0 [pid 4045] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4045] exit_group(0) = ? [pid 4045] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4045, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4046 ./strace-static-x86_64: Process 4046 attached [pid 4046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4046] setpgid(0, 0) = 0 [pid 4046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4046] write(3, "1000", 4) = 4 [pid 4046] close(3) = 0 [pid 4046] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4046] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4046] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4046] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4046] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.803530][ T4043] overlayfs: filesystem on './bus' not supported as upperdir [ 59.820683][ T4044] overlayfs: filesystem on './bus' not supported as upperdir [ 59.838612][ T4045] overlayfs: filesystem on './bus' not supported as upperdir [pid 4046] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4046] chdir("./bus") = 0 [pid 4046] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4046] exit_group(0) = ? [pid 4046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4046, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4047 ./strace-static-x86_64: Process 4047 attached [pid 4047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4047] setpgid(0, 0) = 0 [pid 4047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4047] write(3, "1000", 4) = 4 [pid 4047] close(3) = 0 [pid 4047] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4047] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4047] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4047] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4047] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4047] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4047] chdir("./bus") = 0 [pid 4047] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4047] exit_group(0) = ? [pid 4047] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4047, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4048 ./strace-static-x86_64: Process 4048 attached [pid 4048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4048] setpgid(0, 0) = 0 [pid 4048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4048] write(3, "1000", 4) = 4 [pid 4048] close(3) = 0 [pid 4048] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4048] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4048] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4048] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4048] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4048] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4048] chdir("./bus") = 0 [pid 4048] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4048] exit_group(0) = ? [pid 4048] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4048, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4049 attached , child_tidptr=0x5555571cf5d0) = 4049 [pid 4049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4049] setpgid(0, 0) = 0 [pid 4049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4049] write(3, "1000", 4) = 4 [pid 4049] close(3) = 0 [pid 4049] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4049] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4049] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4049] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4049] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.854967][ T4046] overlayfs: filesystem on './bus' not supported as upperdir [ 59.873523][ T4047] overlayfs: filesystem on './bus' not supported as upperdir [ 59.892529][ T4048] overlayfs: filesystem on './bus' not supported as upperdir [pid 4049] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4049] chdir("./bus") = 0 [pid 4049] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4049] exit_group(0) = ? [pid 4049] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4049, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4050 ./strace-static-x86_64: Process 4050 attached [pid 4050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4050] setpgid(0, 0) = 0 [pid 4050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4050] write(3, "1000", 4) = 4 [pid 4050] close(3) = 0 [pid 4050] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4050] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4050] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4050] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4050] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4050] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4050] chdir("./bus") = 0 [pid 4050] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4050] exit_group(0) = ? [pid 4050] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4050, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4051 attached , child_tidptr=0x5555571cf5d0) = 4051 [pid 4051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4051] setpgid(0, 0) = 0 [pid 4051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4051] write(3, "1000", 4) = 4 [pid 4051] close(3) = 0 [pid 4051] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4051] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4051] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4051] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4051] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4051] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4051] chdir("./bus") = 0 [pid 4051] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4051] exit_group(0) = ? [pid 4051] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4051, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4052 attached [pid 4052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555571cf5d0) = 4052 [pid 4052] <... prctl resumed>) = 0 [pid 4052] setpgid(0, 0) = 0 [pid 4052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4052] write(3, "1000", 4) = 4 [pid 4052] close(3) = 0 [pid 4052] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4052] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4052] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4052] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4052] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.918722][ T4049] overlayfs: filesystem on './bus' not supported as upperdir [ 59.935282][ T4050] overlayfs: filesystem on './bus' not supported as upperdir [ 59.952589][ T4051] overlayfs: filesystem on './bus' not supported as upperdir [pid 4052] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4052] chdir("./bus") = 0 [pid 4052] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4052] exit_group(0) = ? [pid 4052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4052, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4053 attached , child_tidptr=0x5555571cf5d0) = 4053 [pid 4053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4053] setpgid(0, 0) = 0 [pid 4053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4053] write(3, "1000", 4) = 4 [pid 4053] close(3) = 0 [pid 4053] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4053] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4053] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4053] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4053] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4053] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4053] chdir("./bus") = 0 [pid 4053] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4053] exit_group(0) = ? [pid 4053] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4053, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4054 ./strace-static-x86_64: Process 4054 attached [pid 4054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4054] setpgid(0, 0) = 0 [pid 4054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4054] write(3, "1000", 4) = 4 [pid 4054] close(3) = 0 [pid 4054] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4054] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4054] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4054] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4054] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4054] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4054] chdir("./bus") = 0 [pid 4054] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4054] exit_group(0) = ? [pid 4054] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4054, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4055 ./strace-static-x86_64: Process 4055 attached [pid 4055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4055] setpgid(0, 0) = 0 [pid 4055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4055] write(3, "1000", 4) = 4 [pid 4055] close(3) = 0 [pid 4055] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4055] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4055] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4055] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4055] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 59.968657][ T4052] overlayfs: filesystem on './bus' not supported as upperdir [ 59.986401][ T4053] overlayfs: filesystem on './bus' not supported as upperdir [ 60.003525][ T4054] overlayfs: filesystem on './bus' not supported as upperdir [pid 4055] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4055] chdir("./bus") = 0 [pid 4055] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4055] exit_group(0) = ? [pid 4055] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4055, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4056 ./strace-static-x86_64: Process 4056 attached [pid 4056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4056] setpgid(0, 0) = 0 [pid 4056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4056] write(3, "1000", 4) = 4 [pid 4056] close(3) = 0 [pid 4056] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4056] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4056] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4056] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4056] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4056] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4056] chdir("./bus") = 0 [pid 4056] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4056] exit_group(0) = ? [pid 4056] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4056, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4057 ./strace-static-x86_64: Process 4057 attached [pid 4057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4057] setpgid(0, 0) = 0 [pid 4057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4057] write(3, "1000", 4) = 4 [pid 4057] close(3) = 0 [pid 4057] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4057] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4057] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4057] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4057] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4057] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4057] chdir("./bus") = 0 [pid 4057] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4057] exit_group(0) = ? [pid 4057] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4057, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4058 ./strace-static-x86_64: Process 4058 attached [pid 4058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4058] setpgid(0, 0) = 0 [pid 4058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4058] write(3, "1000", 4) = 4 [pid 4058] close(3) = 0 [pid 4058] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4058] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4058] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4058] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4058] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.018580][ T4055] overlayfs: filesystem on './bus' not supported as upperdir [ 60.033352][ T4056] overlayfs: filesystem on './bus' not supported as upperdir [ 60.050767][ T4057] overlayfs: filesystem on './bus' not supported as upperdir [pid 4058] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4058] chdir("./bus") = 0 [pid 4058] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4058] exit_group(0) = ? [pid 4058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4058, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4059 ./strace-static-x86_64: Process 4059 attached [pid 4059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4059] setpgid(0, 0) = 0 [pid 4059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4059] write(3, "1000", 4) = 4 [pid 4059] close(3) = 0 [pid 4059] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4059] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4059] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4059] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4059] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4059] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4059] chdir("./bus") = 0 [pid 4059] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4059] exit_group(0) = ? [pid 4059] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4059, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4060 ./strace-static-x86_64: Process 4060 attached [pid 4060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4060] setpgid(0, 0) = 0 [pid 4060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4060] write(3, "1000", 4) = 4 [pid 4060] close(3) = 0 [pid 4060] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4060] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4060] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4060] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4060] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4060] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4060] chdir("./bus") = 0 [pid 4060] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4060] exit_group(0) = ? [pid 4060] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4060, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4061 ./strace-static-x86_64: Process 4061 attached [pid 4061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4061] setpgid(0, 0) = 0 [pid 4061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4061] write(3, "1000", 4) = 4 [pid 4061] close(3) = 0 [pid 4061] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4061] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4061] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4061] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4061] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.070619][ T4058] overlayfs: filesystem on './bus' not supported as upperdir [ 60.086986][ T4059] overlayfs: filesystem on './bus' not supported as upperdir [ 60.104888][ T4060] overlayfs: filesystem on './bus' not supported as upperdir [pid 4061] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4061] chdir("./bus") = 0 [pid 4061] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4061] exit_group(0) = ? [pid 4061] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4061, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4062 ./strace-static-x86_64: Process 4062 attached [pid 4062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4062] setpgid(0, 0) = 0 [pid 4062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4062] write(3, "1000", 4) = 4 [pid 4062] close(3) = 0 [pid 4062] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4062] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4062] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4062] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4062] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4062] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4062] chdir("./bus") = 0 [pid 4062] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4062] exit_group(0) = ? [pid 4062] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4062, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4063 attached , child_tidptr=0x5555571cf5d0) = 4063 [pid 4063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4063] setpgid(0, 0) = 0 [pid 4063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4063] write(3, "1000", 4) = 4 [pid 4063] close(3) = 0 [pid 4063] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4063] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4063] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4063] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4063] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4063] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4063] chdir("./bus") = 0 [pid 4063] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4063] exit_group(0) = ? [pid 4063] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4063, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4064 attached , child_tidptr=0x5555571cf5d0) = 4064 [pid 4064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4064] setpgid(0, 0) = 0 [pid 4064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4064] write(3, "1000", 4) = 4 [pid 4064] close(3) = 0 [pid 4064] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4064] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4064] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4064] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4064] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.121588][ T4061] overlayfs: filesystem on './bus' not supported as upperdir [ 60.146040][ T4062] overlayfs: filesystem on './bus' not supported as upperdir [ 60.161562][ T4063] overlayfs: filesystem on './bus' not supported as upperdir [pid 4064] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4064] chdir("./bus") = 0 [pid 4064] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4064] exit_group(0) = ? [pid 4064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4064, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4065 ./strace-static-x86_64: Process 4065 attached [pid 4065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4065] setpgid(0, 0) = 0 [pid 4065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4065] write(3, "1000", 4) = 4 [pid 4065] close(3) = 0 [pid 4065] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4065] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4065] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4065] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4065] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4065] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4065] chdir("./bus") = 0 [pid 4065] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4065] exit_group(0) = ? [pid 4065] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4065, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4066 ./strace-static-x86_64: Process 4066 attached [pid 4066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4066] setpgid(0, 0) = 0 [pid 4066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4066] write(3, "1000", 4) = 4 [pid 4066] close(3) = 0 [pid 4066] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4066] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4066] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4066] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4066] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.180296][ T4064] overlayfs: filesystem on './bus' not supported as upperdir [ 60.200386][ T4065] overlayfs: filesystem on './bus' not supported as upperdir [pid 4066] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4066] chdir("./bus") = 0 [pid 4066] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4066] exit_group(0) = ? [pid 4066] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4066, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4067 ./strace-static-x86_64: Process 4067 attached [pid 4067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4067] setpgid(0, 0) = 0 [pid 4067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4067] write(3, "1000", 4) = 4 [pid 4067] close(3) = 0 [pid 4067] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4067] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4067] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4067] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4067] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4067] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4067] chdir("./bus") = 0 [pid 4067] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4067] exit_group(0) = ? [pid 4067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4067, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4068 ./strace-static-x86_64: Process 4068 attached [pid 4068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4068] setpgid(0, 0) = 0 [pid 4068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4068] write(3, "1000", 4) = 4 [pid 4068] close(3) = 0 [pid 4068] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4068] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4068] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4068] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4068] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4068] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4068] chdir("./bus") = 0 [pid 4068] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4068] exit_group(0) = ? [pid 4068] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4068, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4069 attached , child_tidptr=0x5555571cf5d0) = 4069 [pid 4069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4069] setpgid(0, 0) = 0 [pid 4069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4069] write(3, "1000", 4) = 4 [pid 4069] close(3) = 0 [pid 4069] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4069] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4069] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4069] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4069] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.227949][ T4066] overlayfs: filesystem on './bus' not supported as upperdir [ 60.247101][ T4067] overlayfs: filesystem on './bus' not supported as upperdir [ 60.263694][ T4068] overlayfs: filesystem on './bus' not supported as upperdir [pid 4069] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4069] chdir("./bus") = 0 [pid 4069] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4069] exit_group(0) = ? [pid 4069] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4069, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4070 ./strace-static-x86_64: Process 4070 attached [pid 4070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4070] setpgid(0, 0) = 0 [pid 4070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4070] write(3, "1000", 4) = 4 [pid 4070] close(3) = 0 [pid 4070] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4070] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4070] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4070] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4070] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4070] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4070] chdir("./bus") = 0 [pid 4070] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4070] exit_group(0) = ? [pid 4070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4070, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4071 ./strace-static-x86_64: Process 4071 attached [pid 4071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4071] setpgid(0, 0) = 0 [pid 4071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4071] write(3, "1000", 4) = 4 [pid 4071] close(3) = 0 [pid 4071] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4071] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4071] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4071] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4071] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4071] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4071] chdir("./bus") = 0 [pid 4071] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4071] exit_group(0) = ? [pid 4071] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4071, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4072 ./strace-static-x86_64: Process 4072 attached [pid 4072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4072] setpgid(0, 0) = 0 [pid 4072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4072] write(3, "1000", 4) = 4 [pid 4072] close(3) = 0 [pid 4072] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4072] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4072] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4072] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4072] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.282000][ T4069] overlayfs: filesystem on './bus' not supported as upperdir [ 60.301704][ T4070] overlayfs: filesystem on './bus' not supported as upperdir [ 60.317876][ T4071] overlayfs: filesystem on './bus' not supported as upperdir [pid 4072] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4072] chdir("./bus") = 0 [pid 4072] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4072] exit_group(0) = ? [pid 4072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4072, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4073 ./strace-static-x86_64: Process 4073 attached [pid 4073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4073] setpgid(0, 0) = 0 [pid 4073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4073] write(3, "1000", 4) = 4 [pid 4073] close(3) = 0 [pid 4073] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4073] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4073] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4073] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4073] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4073] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4073] chdir("./bus") = 0 [pid 4073] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4073] exit_group(0) = ? [pid 4073] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4073, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4074 attached , child_tidptr=0x5555571cf5d0) = 4074 [pid 4074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4074] setpgid(0, 0) = 0 [pid 4074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4074] write(3, "1000", 4) = 4 [pid 4074] close(3) = 0 [pid 4074] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4074] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4074] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4074] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4074] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4074] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4074] chdir("./bus") = 0 [pid 4074] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4074] exit_group(0) = ? [pid 4074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4074, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4075 ./strace-static-x86_64: Process 4075 attached [pid 4075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4075] setpgid(0, 0) = 0 [pid 4075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4075] write(3, "1000", 4) = 4 [pid 4075] close(3) = 0 [pid 4075] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4075] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4075] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4075] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4075] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.335795][ T4072] overlayfs: filesystem on './bus' not supported as upperdir [ 60.354065][ T4073] overlayfs: filesystem on './bus' not supported as upperdir [ 60.370210][ T4074] overlayfs: filesystem on './bus' not supported as upperdir [pid 4075] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4075] chdir("./bus") = 0 [pid 4075] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4075] exit_group(0) = ? [pid 4075] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4075, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4076 ./strace-static-x86_64: Process 4076 attached [pid 4076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4076] setpgid(0, 0) = 0 [pid 4076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4076] write(3, "1000", 4) = 4 [pid 4076] close(3) = 0 [pid 4076] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4076] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4076] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4076] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4076] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4076] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4076] chdir("./bus") = 0 [pid 4076] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4076] exit_group(0) = ? [pid 4076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4076, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4077 attached , child_tidptr=0x5555571cf5d0) = 4077 [pid 4077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4077] setpgid(0, 0) = 0 [pid 4077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4077] write(3, "1000", 4) = 4 [pid 4077] close(3) = 0 [pid 4077] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4077] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4077] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4077] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4077] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4077] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4077] chdir("./bus") = 0 [pid 4077] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4077] exit_group(0) = ? [pid 4077] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4077, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4078 ./strace-static-x86_64: Process 4078 attached [pid 4078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4078] setpgid(0, 0) = 0 [pid 4078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4078] write(3, "1000", 4) = 4 [pid 4078] close(3) = 0 [pid 4078] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4078] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4078] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4078] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4078] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.386934][ T4075] overlayfs: filesystem on './bus' not supported as upperdir [ 60.403706][ T4076] overlayfs: filesystem on './bus' not supported as upperdir [ 60.419966][ T4077] overlayfs: filesystem on './bus' not supported as upperdir [pid 4078] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4078] chdir("./bus") = 0 [pid 4078] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4078] exit_group(0) = ? [pid 4078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4078, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4079 ./strace-static-x86_64: Process 4079 attached [pid 4079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4079] setpgid(0, 0) = 0 [pid 4079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4079] write(3, "1000", 4) = 4 [pid 4079] close(3) = 0 [pid 4079] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4079] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4079] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4079] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4079] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4079] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4079] chdir("./bus") = 0 [pid 4079] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4079] exit_group(0) = ? [pid 4079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4079, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4080 ./strace-static-x86_64: Process 4080 attached [pid 4080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4080] setpgid(0, 0) = 0 [pid 4080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4080] write(3, "1000", 4) = 4 [pid 4080] close(3) = 0 [pid 4080] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4080] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4080] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4080] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4080] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4080] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4080] chdir("./bus") = 0 [pid 4080] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4080] exit_group(0) = ? [pid 4080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4080, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4081 ./strace-static-x86_64: Process 4081 attached [pid 4081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4081] setpgid(0, 0) = 0 [pid 4081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4081] write(3, "1000", 4) = 4 [pid 4081] close(3) = 0 [pid 4081] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4081] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4081] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4081] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4081] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.435820][ T4078] overlayfs: filesystem on './bus' not supported as upperdir [ 60.452183][ T4079] overlayfs: filesystem on './bus' not supported as upperdir [ 60.468658][ T4080] overlayfs: filesystem on './bus' not supported as upperdir [pid 4081] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4081] chdir("./bus") = 0 [pid 4081] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4081] exit_group(0) = ? [pid 4081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4081, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4082 ./strace-static-x86_64: Process 4082 attached [pid 4082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4082] setpgid(0, 0) = 0 [pid 4082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4082] write(3, "1000", 4) = 4 [pid 4082] close(3) = 0 [pid 4082] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4082] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4082] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4082] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4082] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4082] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4082] chdir("./bus") = 0 [pid 4082] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4082] exit_group(0) = ? [pid 4082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4082, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4083 ./strace-static-x86_64: Process 4083 attached [pid 4083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4083] setpgid(0, 0) = 0 [pid 4083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4083] write(3, "1000", 4) = 4 [pid 4083] close(3) = 0 [pid 4083] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4083] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4083] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4083] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4083] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4083] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4083] chdir("./bus") = 0 [pid 4083] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4083] exit_group(0) = ? [pid 4083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4083, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4084 ./strace-static-x86_64: Process 4084 attached [pid 4084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4084] setpgid(0, 0) = 0 [pid 4084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4084] write(3, "1000", 4) = 4 [pid 4084] close(3) = 0 [pid 4084] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4084] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4084] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4084] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4084] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.487171][ T4081] overlayfs: filesystem on './bus' not supported as upperdir [ 60.502930][ T4082] overlayfs: filesystem on './bus' not supported as upperdir [ 60.518924][ T4083] overlayfs: filesystem on './bus' not supported as upperdir [pid 4084] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4084] chdir("./bus") = 0 [pid 4084] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4084] exit_group(0) = ? [pid 4084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4084, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4085 ./strace-static-x86_64: Process 4085 attached [pid 4085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4085] setpgid(0, 0) = 0 [pid 4085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4085] write(3, "1000", 4) = 4 [pid 4085] close(3) = 0 [pid 4085] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4085] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4085] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4085] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4085] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4085] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4085] chdir("./bus") = 0 [pid 4085] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4085] exit_group(0) = ? [pid 4085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4085, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4086 ./strace-static-x86_64: Process 4086 attached [pid 4086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4086] setpgid(0, 0) = 0 [pid 4086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4086] write(3, "1000", 4) = 4 [pid 4086] close(3) = 0 [pid 4086] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4086] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4086] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4086] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4086] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4086] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4086] chdir("./bus") = 0 [pid 4086] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4086] exit_group(0) = ? [pid 4086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4086, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4087 ./strace-static-x86_64: Process 4087 attached [pid 4087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4087] setpgid(0, 0) = 0 [pid 4087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4087] write(3, "1000", 4) = 4 [pid 4087] close(3) = 0 [pid 4087] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4087] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4087] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4087] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4087] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.536452][ T4084] overlayfs: filesystem on './bus' not supported as upperdir [ 60.552163][ T4085] overlayfs: filesystem on './bus' not supported as upperdir [ 60.567780][ T4086] overlayfs: filesystem on './bus' not supported as upperdir [pid 4087] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4087] chdir("./bus") = 0 [pid 4087] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4087] exit_group(0) = ? [pid 4087] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4087, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4088 attached , child_tidptr=0x5555571cf5d0) = 4088 [pid 4088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4088] setpgid(0, 0) = 0 [pid 4088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4088] write(3, "1000", 4) = 4 [pid 4088] close(3) = 0 [pid 4088] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4088] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4088] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4088] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4088] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4088] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4088] chdir("./bus") = 0 [pid 4088] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4088] exit_group(0) = ? [pid 4088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4088, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4089 ./strace-static-x86_64: Process 4089 attached [pid 4089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4089] setpgid(0, 0) = 0 [pid 4089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4089] write(3, "1000", 4) = 4 [pid 4089] close(3) = 0 [pid 4089] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4089] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4089] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4089] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4089] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4089] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4089] chdir("./bus") = 0 [pid 4089] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4089] exit_group(0) = ? [pid 4089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4089, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4090 attached , child_tidptr=0x5555571cf5d0) = 4090 [pid 4090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4090] setpgid(0, 0) = 0 [pid 4090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4090] write(3, "1000", 4) = 4 [pid 4090] close(3) = 0 [pid 4090] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4090] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4090] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4090] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4090] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.586479][ T4087] overlayfs: filesystem on './bus' not supported as upperdir [ 60.606067][ T4088] overlayfs: filesystem on './bus' not supported as upperdir [ 60.623975][ T4089] overlayfs: filesystem on './bus' not supported as upperdir [pid 4090] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4090] chdir("./bus") = 0 [pid 4090] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4090] exit_group(0) = ? [pid 4090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4090, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4091 ./strace-static-x86_64: Process 4091 attached [pid 4091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4091] setpgid(0, 0) = 0 [pid 4091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4091] write(3, "1000", 4) = 4 [pid 4091] close(3) = 0 [pid 4091] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4091] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4091] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4091] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4091] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4091] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4091] chdir("./bus") = 0 [pid 4091] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4091] exit_group(0) = ? [pid 4091] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4091, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4092 ./strace-static-x86_64: Process 4092 attached [pid 4092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4092] setpgid(0, 0) = 0 [pid 4092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4092] write(3, "1000", 4) = 4 [pid 4092] close(3) = 0 [pid 4092] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4092] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4092] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4092] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4092] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4092] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4092] chdir("./bus") = 0 [pid 4092] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4092] exit_group(0) = ? [pid 4092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4092, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4093 ./strace-static-x86_64: Process 4093 attached [pid 4093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4093] setpgid(0, 0) = 0 [pid 4093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4093] write(3, "1000", 4) = 4 [pid 4093] close(3) = 0 [pid 4093] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4093] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4093] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4093] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4093] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.640164][ T4090] overlayfs: filesystem on './bus' not supported as upperdir [ 60.656987][ T4091] overlayfs: filesystem on './bus' not supported as upperdir [ 60.672817][ T4092] overlayfs: filesystem on './bus' not supported as upperdir [pid 4093] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4093] chdir("./bus") = 0 [pid 4093] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4093] exit_group(0) = ? [pid 4093] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4093, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4094 ./strace-static-x86_64: Process 4094 attached [pid 4094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4094] setpgid(0, 0) = 0 [pid 4094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4094] write(3, "1000", 4) = 4 [pid 4094] close(3) = 0 [pid 4094] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4094] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4094] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4094] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4094] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4094] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4094] chdir("./bus") = 0 [pid 4094] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4094] exit_group(0) = ? [pid 4094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4094, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4095 ./strace-static-x86_64: Process 4095 attached [pid 4095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4095] setpgid(0, 0) = 0 [pid 4095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4095] write(3, "1000", 4) = 4 [pid 4095] close(3) = 0 [pid 4095] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4095] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4095] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4095] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4095] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4095] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4095] chdir("./bus") = 0 [pid 4095] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4095] exit_group(0) = ? [pid 4095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4095, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4096 ./strace-static-x86_64: Process 4096 attached [pid 4096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4096] setpgid(0, 0) = 0 [pid 4096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4096] write(3, "1000", 4) = 4 [pid 4096] close(3) = 0 [pid 4096] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4096] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4096] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4096] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4096] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.689764][ T4093] overlayfs: filesystem on './bus' not supported as upperdir [ 60.707034][ T4094] overlayfs: filesystem on './bus' not supported as upperdir [ 60.723752][ T4095] overlayfs: filesystem on './bus' not supported as upperdir [pid 4096] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4096] chdir("./bus") = 0 [pid 4096] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4096] exit_group(0) = ? [pid 4096] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4096, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4097 ./strace-static-x86_64: Process 4097 attached [pid 4097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4097] setpgid(0, 0) = 0 [pid 4097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4097] write(3, "1000", 4) = 4 [pid 4097] close(3) = 0 [pid 4097] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4097] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4097] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4097] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4097] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4097] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4097] chdir("./bus") = 0 [pid 4097] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4097] exit_group(0) = ? [pid 4097] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4097, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4098 ./strace-static-x86_64: Process 4098 attached [pid 4098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4098] setpgid(0, 0) = 0 [pid 4098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4098] write(3, "1000", 4) = 4 [pid 4098] close(3) = 0 [pid 4098] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4098] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4098] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4098] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4098] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4098] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4098] chdir("./bus") = 0 [pid 4098] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4098] exit_group(0) = ? [pid 4098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4098, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4099 attached , child_tidptr=0x5555571cf5d0) = 4099 [pid 4099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4099] setpgid(0, 0) = 0 [pid 4099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4099] write(3, "1000", 4) = 4 [pid 4099] close(3) = 0 [pid 4099] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4099] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4099] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4099] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4099] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.740571][ T4096] overlayfs: filesystem on './bus' not supported as upperdir [ 60.757594][ T4097] overlayfs: filesystem on './bus' not supported as upperdir [ 60.775030][ T4098] overlayfs: filesystem on './bus' not supported as upperdir [pid 4099] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4099] chdir("./bus") = 0 [pid 4099] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4099] exit_group(0) = ? [pid 4099] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4099, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4100 ./strace-static-x86_64: Process 4100 attached [pid 4100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4100] setpgid(0, 0) = 0 [pid 4100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4100] write(3, "1000", 4) = 4 [pid 4100] close(3) = 0 [pid 4100] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4100] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4100] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4100] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4100] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4100] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4100] chdir("./bus") = 0 [pid 4100] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4100] exit_group(0) = ? [pid 4100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4100, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4101 ./strace-static-x86_64: Process 4101 attached [pid 4101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4101] setpgid(0, 0) = 0 [pid 4101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4101] write(3, "1000", 4) = 4 [pid 4101] close(3) = 0 [pid 4101] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4101] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4101] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4101] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4101] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4101] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4101] chdir("./bus") = 0 [pid 4101] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4101] exit_group(0) = ? [pid 4101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4101, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4102 ./strace-static-x86_64: Process 4102 attached [pid 4102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4102] setpgid(0, 0) = 0 [pid 4102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4102] write(3, "1000", 4) = 4 [pid 4102] close(3) = 0 [pid 4102] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4102] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4102] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4102] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4102] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.804168][ T4099] overlayfs: filesystem on './bus' not supported as upperdir [ 60.820697][ T4100] overlayfs: filesystem on './bus' not supported as upperdir [ 60.837231][ T4101] overlayfs: filesystem on './bus' not supported as upperdir [pid 4102] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4102] chdir("./bus") = 0 [pid 4102] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4102] exit_group(0) = ? [pid 4102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4102, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4103 ./strace-static-x86_64: Process 4103 attached [pid 4103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4103] setpgid(0, 0) = 0 [pid 4103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4103] write(3, "1000", 4) = 4 [pid 4103] close(3) = 0 [pid 4103] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4103] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4103] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4103] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4103] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4103] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4103] chdir("./bus") = 0 [pid 4103] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4103] exit_group(0) = ? [pid 4103] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4103, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4104 ./strace-static-x86_64: Process 4104 attached [pid 4104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4104] setpgid(0, 0) = 0 [pid 4104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4104] write(3, "1000", 4) = 4 [pid 4104] close(3) = 0 [pid 4104] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4104] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4104] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4104] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4104] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.864927][ T4102] overlayfs: filesystem on './bus' not supported as upperdir [ 60.882291][ T4103] overlayfs: filesystem on './bus' not supported as upperdir [pid 4104] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4104] chdir("./bus") = 0 [pid 4104] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4104] exit_group(0) = ? [pid 4104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4104, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4105 ./strace-static-x86_64: Process 4105 attached [pid 4105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4105] setpgid(0, 0) = 0 [pid 4105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4105] write(3, "1000", 4) = 4 [pid 4105] close(3) = 0 [pid 4105] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4105] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4105] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4105] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4105] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4105] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4105] chdir("./bus") = 0 [pid 4105] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4105] exit_group(0) = ? [pid 4105] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4105, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4106 ./strace-static-x86_64: Process 4106 attached [pid 4106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4106] setpgid(0, 0) = 0 [pid 4106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4106] write(3, "1000", 4) = 4 [pid 4106] close(3) = 0 [pid 4106] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4106] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4106] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4106] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4106] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.907332][ T4104] overlayfs: filesystem on './bus' not supported as upperdir [ 60.934214][ T4105] overlayfs: filesystem on './bus' not supported as upperdir [pid 4106] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4106] chdir("./bus") = 0 [pid 4106] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4106] exit_group(0) = ? [pid 4106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4106, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4107 attached , child_tidptr=0x5555571cf5d0) = 4107 [pid 4107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4107] setpgid(0, 0) = 0 [pid 4107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4107] write(3, "1000", 4) = 4 [pid 4107] close(3) = 0 [pid 4107] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4107] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4107] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4107] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4107] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4107] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4107] chdir("./bus") = 0 [pid 4107] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4107] exit_group(0) = ? [pid 4107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4107, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4108 ./strace-static-x86_64: Process 4108 attached [pid 4108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4108] setpgid(0, 0) = 0 [pid 4108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4108] write(3, "1000", 4) = 4 [pid 4108] close(3) = 0 [pid 4108] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4108] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4108] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4108] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4108] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4108] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4108] chdir("./bus") = 0 [pid 4108] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4108] exit_group(0) = ? [pid 4108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4108, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4109 attached , child_tidptr=0x5555571cf5d0) = 4109 [pid 4109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4109] setpgid(0, 0) = 0 [pid 4109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4109] write(3, "1000", 4) = 4 [pid 4109] close(3) = 0 [pid 4109] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4109] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4109] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4109] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4109] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 60.951183][ T4106] overlayfs: filesystem on './bus' not supported as upperdir [ 60.967185][ T4107] overlayfs: filesystem on './bus' not supported as upperdir [ 60.983707][ T4108] overlayfs: filesystem on './bus' not supported as upperdir [pid 4109] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4109] chdir("./bus") = 0 [pid 4109] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4109] exit_group(0) = ? [pid 4109] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4109, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4110 ./strace-static-x86_64: Process 4110 attached [pid 4110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4110] setpgid(0, 0) = 0 [pid 4110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4110] write(3, "1000", 4) = 4 [pid 4110] close(3) = 0 [pid 4110] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4110] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4110] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4110] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4110] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4110] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4110] chdir("./bus") = 0 [pid 4110] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4110] exit_group(0) = ? [pid 4110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4110, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4111 ./strace-static-x86_64: Process 4111 attached [pid 4111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4111] setpgid(0, 0) = 0 [pid 4111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4111] write(3, "1000", 4) = 4 [pid 4111] close(3) = 0 [pid 4111] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4111] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4111] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4111] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4111] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4111] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4111] chdir("./bus") = 0 [pid 4111] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4111] exit_group(0) = ? [pid 4111] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4111, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4112 ./strace-static-x86_64: Process 4112 attached [pid 4112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4112] setpgid(0, 0) = 0 [pid 4112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4112] write(3, "1000", 4) = 4 [pid 4112] close(3) = 0 [pid 4112] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4112] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4112] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4112] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4112] mkdir("./file1", 000) = -1 EEXIST (File exists) [ 61.003093][ T4109] overlayfs: filesystem on './bus' not supported as upperdir [ 61.020065][ T4110] overlayfs: filesystem on './bus' not supported as upperdir [ 61.036965][ T4111] overlayfs: filesystem on './bus' not supported as upperdir [pid 4112] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4112] chdir("./bus") = 0 [pid 4112] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4112] exit_group(0) = ? [pid 4112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4112, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4113 ./strace-static-x86_64: Process 4113 attached [pid 4113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4113] setpgid(0, 0) = 0 [pid 4113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4113] write(3, "1000", 4) = 4 [pid 4113] close(3) = 0 [pid 4113] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4113] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4113] mknodat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 4113] mkdir("./bus", 000) = -1 EEXIST (File exists) [pid 4113] mkdir("./file1", 000) = -1 EEXIST (File exists) [pid 4113] mount(NULL, "./bus", "overlay", 0, "upperdir=./bus,workdir=./file1,lowerdir=.") = -1 EINVAL (Invalid argument) [pid 4113] chdir("./bus") = 0 [pid 4113] open("./file0", O_ACCMODE|O_CREAT|0x3c, 000) = 5 [pid 4113] exit_group(0) = ? [pid 4113] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4113, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571cf5d0) = 4114 ./strace-static-x86_64: Process 4114 attached [pid 4114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4114] setpgid(0, 0) = 0 [pid 4114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4114] write(3, "1000", 4) = 4 [pid 4114] close(3) = 0 [pid 4114] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 4114] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4