./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2038138635 <...> Warning: Permanently added '10.128.0.181' (ED25519) to the list of known hosts. execve("./syz-executor2038138635", ["./syz-executor2038138635"], 0x7ffff94bfff0 /* 10 vars */) = 0 brk(NULL) = 0x55557632b000 brk(0x55557632bd00) = 0x55557632bd00 arch_prctl(ARCH_SET_FS, 0x55557632b380) = 0 set_tid_address(0x55557632b650) = 5075 set_robust_list(0x55557632b660, 24) = 0 rseq(0x55557632bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2038138635", 4096) = 28 getrandom("\x21\x4a\x7e\x16\x50\xf5\x08\x1d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557632bd00 brk(0x55557634cd00) = 0x55557634cd00 brk(0x55557634d000) = 0x55557634d000 mprotect(0x7f776489b000, 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 5076 attached , child_tidptr=0x55557632b650) = 5076 [pid 5076] set_robust_list(0x55557632b660, 24) = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5076] write(3, "\\", 1) = 1 [pid 5076] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5076] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5076] exit_group(0) = ? [ 108.347664][ C1] [ 108.350056][ C1] ======================================================== [ 108.357271][ C1] WARNING: possible irq lock inversion dependency detected [ 108.364481][ C1] 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted [ 108.371165][ C1] -------------------------------------------------------- [ 108.378360][ C1] swapper/1/0 just changed the state of lock: [ 108.384442][ C1] ffff888029f59110 (&group->lock#2){..-.}-{2:2}, at: _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 108.394632][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 108.402270][ C1] (&timer->lock){+.+.}-{2:2} [ 108.402313][ C1] [ 108.402313][ C1] [ 108.402313][ C1] and interrupts could create inverse lock ordering between them. [ 108.402313][ C1] [ 108.421526][ C1] [ 108.421526][ C1] other info that might help us debug this: [ 108.429770][ C1] Possible interrupt unsafe locking scenario: [ 108.429770][ C1] [ 108.438090][ C1] CPU0 CPU1 [ 108.443456][ C1] ---- ---- [ 108.448822][ C1] lock(&timer->lock); [ 108.452992][ C1] local_irq_disable(); [ 108.459759][ C1] lock(&group->lock#2); [ 108.466639][ C1] lock(&timer->lock); [ 108.473335][ C1] [ 108.476835][ C1] lock(&group->lock#2); [ 108.481388][ C1] [ 108.481388][ C1] *** DEADLOCK *** [ 108.481388][ C1] [ 108.489543][ C1] no locks held by swapper/1/0. [ 108.494401][ C1] [ 108.494401][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 108.503898][ C1] -> (&timer->lock){+.+.}-{2:2} { [ 108.509088][ C1] HARDIRQ-ON-W at: [ 108.513167][ C1] lock_acquire+0x1b1/0x540 [ 108.519547][ C1] _raw_spin_lock+0x2e/0x40 [ 108.525904][ C1] snd_timer_close_locked+0x65/0xbd0 [ 108.533061][ C1] snd_timer_close+0x8b/0xf0 [ 108.539523][ C1] snd_seq_timer_close+0xa4/0x100 [ 108.546426][ C1] queue_delete+0x49/0xa0 [ 108.552622][ C1] snd_seq_queue_client_leave+0x37/0x1a0 [ 108.560128][ C1] seq_free_client1.part.0+0x10a/0x260 [ 108.567440][ C1] seq_free_client+0x74/0x170 [ 108.574058][ C1] snd_seq_release+0x50/0xe0 [ 108.580500][ C1] __fput+0x273/0xb80 [ 108.586504][ C1] task_work_run+0x151/0x250 [ 108.592961][ C1] do_exit+0xa7d/0x2be0 [ 108.598983][ C1] do_group_exit+0xd3/0x2a0 [ 108.605342][ C1] __x64_sys_exit_group+0x3e/0x50 [ 108.612238][ C1] do_syscall_64+0xd5/0x260 [ 108.618644][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 108.626416][ C1] SOFTIRQ-ON-W at: [ 108.630499][ C1] lock_acquire+0x1b1/0x540 [ 108.636885][ C1] _raw_spin_lock+0x2e/0x40 [ 108.643361][ C1] snd_timer_close_locked+0x65/0xbd0 [ 108.650521][ C1] snd_timer_close+0x8b/0xf0 [ 108.657018][ C1] snd_seq_timer_close+0xa4/0x100 [ 108.663963][ C1] queue_delete+0x49/0xa0 [ 108.670162][ C1] snd_seq_queue_client_leave+0x37/0x1a0 [ 108.677662][ C1] seq_free_client1.part.0+0x10a/0x260 [ 108.684978][ C1] seq_free_client+0x74/0x170 [ 108.691508][ C1] snd_seq_release+0x50/0xe0 [ 108.697951][ C1] __fput+0x273/0xb80 [ 108.703776][ C1] task_work_run+0x151/0x250 [ 108.710223][ C1] do_exit+0xa7d/0x2be0 [ 108.716230][ C1] do_group_exit+0xd3/0x2a0 [ 108.722592][ C1] __x64_sys_exit_group+0x3e/0x50 [ 108.729464][ C1] do_syscall_64+0xd5/0x260 [ 108.735838][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 108.743604][ C1] INITIAL USE at: [ 108.747686][ C1] lock_acquire+0x1b1/0x540 [ 108.753948][ C1] _raw_spin_lock+0x2e/0x40 [ 108.760221][ C1] snd_timer_close_locked+0x65/0xbd0 [ 108.767288][ C1] snd_timer_close+0x8b/0xf0 [ 108.773661][ C1] snd_seq_timer_close+0xa4/0x100 [ 108.780501][ C1] queue_delete+0x49/0xa0 [ 108.786597][ C1] snd_seq_queue_client_leave+0x37/0x1a0 [ 108.794019][ C1] seq_free_client1.part.0+0x10a/0x260 [ 108.801249][ C1] seq_free_client+0x74/0x170 [ 108.807696][ C1] snd_seq_release+0x50/0xe0 [ 108.814053][ C1] __fput+0x273/0xb80 [ 108.819801][ C1] task_work_run+0x151/0x250 [ 108.826249][ C1] do_exit+0xa7d/0x2be0 [ 108.832181][ C1] do_group_exit+0xd3/0x2a0 [ 108.838450][ C1] __x64_sys_exit_group+0x3e/0x50 [ 108.845329][ C1] do_syscall_64+0xd5/0x260 [ 108.851616][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 108.859299][ C1] } [ 108.861886][ C1] ... key at: [] __key.6+0x0/0x40 [ 108.869123][ C1] ... acquired at: [ 108.873010][ C1] _raw_spin_lock_irqsave+0x3a/0x60 [ 108.878414][ C1] snd_timer_notify+0x111/0x3e0 [ 108.883906][ C1] snd_pcm_post_start+0x272/0x350 [ 108.889141][ C1] snd_pcm_action_single+0x10d/0x150 [ 108.894617][ C1] snd_pcm_action+0x70/0x90 [ 108.899426][ C1] __snd_pcm_lib_xfer+0x13f5/0x1ea0 [ 108.904823][ C1] snd_pcm_oss_write3+0xd5/0x1e0 [ 108.909968][ C1] snd_pcm_oss_write2+0x31b/0x3f0 [ 108.915216][ C1] snd_pcm_oss_sync1+0x1bf/0x510 [ 108.920478][ C1] snd_pcm_oss_sync+0x617/0x7f0 [ 108.925561][ C1] snd_pcm_oss_release+0x291/0x320 [ 108.931056][ C1] __fput+0x273/0xb80 [ 108.935344][ C1] task_work_run+0x151/0x250 [ 108.940174][ C1] do_exit+0xa7d/0x2be0 [ 108.944526][ C1] do_group_exit+0xd3/0x2a0 [ 108.949231][ C1] __x64_sys_exit_group+0x3e/0x50 [ 108.954447][ C1] do_syscall_64+0xd5/0x260 [ 108.959178][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 108.965282][ C1] [ 108.967608][ C1] -> (&group->lock#2){..-.}-{2:2} { [ 108.972867][ C1] IN-SOFTIRQ-W at: [ 108.976940][ C1] lock_acquire+0x1b1/0x540 [ 108.983118][ C1] _raw_spin_lock_irqsave+0x3a/0x60 [ 108.989989][ C1] _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 108.997465][ C1] snd_pcm_period_elapsed+0x20/0x50 [ 109.004358][ C1] dummy_hrtimer_callback+0x9d/0x1c0 [ 109.011491][ C1] __hrtimer_run_queues+0x20f/0xc20 [ 109.018407][ C1] hrtimer_run_softirq+0x17d/0x350 [ 109.025199][ C1] __do_softirq+0x21b/0x8de [ 109.031401][ C1] irq_exit_rcu+0xb9/0x120 [ 109.037507][ C1] sysvec_apic_timer_interrupt+0x95/0xb0 [ 109.044833][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 109.052514][ C1] acpi_safe_halt+0x1a/0x20 [ 109.058681][ C1] acpi_idle_enter+0xc5/0x160 [ 109.065059][ C1] cpuidle_enter_state+0x88/0x510 [ 109.071780][ C1] cpuidle_enter+0x4e/0xa0 [ 109.077868][ C1] do_idle+0x313/0x3f0 [ 109.083614][ C1] cpu_startup_entry+0x4f/0x60 [ 109.090068][ C1] start_secondary+0x220/0x2b0 [ 109.096521][ C1] common_startup_64+0x13e/0x148 [ 109.103145][ C1] INITIAL USE at: [ 109.107073][ C1] lock_acquire+0x1b1/0x540 [ 109.113197][ C1] _raw_spin_lock_irq+0x36/0x50 [ 109.119654][ C1] snd_pcm_hw_params+0x151/0x1a30 [ 109.126267][ C1] snd_pcm_kernel_ioctl+0x147/0x2d0 [ 109.133086][ C1] snd_pcm_oss_change_params_locked+0x146c/0x3aa0 [ 109.141115][ C1] snd_pcm_oss_make_ready_locked+0xb7/0x130 [ 109.148628][ C1] snd_pcm_oss_write+0x4af/0xa10 [ 109.155157][ C1] vfs_write+0x29b/0x1100 [ 109.161112][ C1] ksys_write+0x12f/0x260 [ 109.167048][ C1] do_syscall_64+0xd5/0x260 [ 109.173196][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.180701][ C1] } [ 109.183212][ C1] ... key at: [] __key.5+0x0/0x40 [ 109.190391][ C1] ... acquired at: [ 109.194203][ C1] __lock_acquire+0x13d4/0x3b30 [ 109.199246][ C1] lock_acquire+0x1b1/0x540 [ 109.203969][ C1] _raw_spin_lock_irqsave+0x3a/0x60 [ 109.209381][ C1] _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 109.215309][ C1] snd_pcm_period_elapsed+0x20/0x50 [ 109.220718][ C1] dummy_hrtimer_callback+0x9d/0x1c0 [ 109.226220][ C1] __hrtimer_run_queues+0x20f/0xc20 [ 109.231631][ C1] hrtimer_run_softirq+0x17d/0x350 [ 109.236962][ C1] __do_softirq+0x21b/0x8de [ 109.241799][ C1] irq_exit_rcu+0xb9/0x120 [ 109.246433][ C1] sysvec_apic_timer_interrupt+0x95/0xb0 [ 109.252276][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 109.258465][ C1] acpi_safe_halt+0x1a/0x20 [ 109.263162][ C1] acpi_idle_enter+0xc5/0x160 [ 109.268055][ C1] cpuidle_enter_state+0x88/0x510 [ 109.273317][ C1] cpuidle_enter+0x4e/0xa0 [ 109.277933][ C1] do_idle+0x313/0x3f0 [ 109.282224][ C1] cpu_startup_entry+0x4f/0x60 [ 109.287206][ C1] start_secondary+0x220/0x2b0 [ 109.292184][ C1] common_startup_64+0x13e/0x148 [ 109.297350][ C1] [ 109.299695][ C1] [ 109.299695][ C1] stack backtrace: [ 109.305583][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 109.314891][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 109.325233][ C1] Call Trace: [ 109.328534][ C1] [ 109.331396][ C1] dump_stack_lvl+0x116/0x1f0 [ 109.336103][ C1] print_irq_inversion_bug.part.0+0x3e9/0x5a0 [ 109.342222][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 109.348866][ C1] ? srso_return_thunk+0x5/0x5f [ 109.353750][ C1] ? __pfx_usage_match+0x10/0x10 [ 109.358726][ C1] mark_lock+0x574/0xc60 [ 109.362996][ C1] ? __pfx_mark_lock+0x10/0x10 [ 109.367786][ C1] ? mark_lock+0xb5/0xc60 [ 109.372134][ C1] ? srso_return_thunk+0x5/0x5f [ 109.377039][ C1] __lock_acquire+0x13d4/0x3b30 [ 109.381923][ C1] ? srso_return_thunk+0x5/0x5f [ 109.386816][ C1] ? lock_acquire+0x1b1/0x540 [ 109.391537][ C1] ? __pfx___lock_acquire+0x10/0x10 [ 109.396764][ C1] ? srso_return_thunk+0x5/0x5f [ 109.401659][ C1] ? debug_object_deactivate+0x1f0/0x370 [ 109.407325][ C1] lock_acquire+0x1b1/0x540 [ 109.411859][ C1] ? _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 109.417802][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 109.422864][ C1] ? do_raw_spin_unlock+0x172/0x230 [ 109.428129][ C1] ? srso_return_thunk+0x5/0x5f [ 109.433029][ C1] ? find_held_lock+0x2d/0x110 [ 109.437836][ C1] ? srso_return_thunk+0x5/0x5f [ 109.442731][ C1] ? __hrtimer_run_queues+0x5a7/0xc20 [ 109.448159][ C1] ? __pfx_dummy_hrtimer_callback+0x10/0x10 [ 109.454098][ C1] _raw_spin_lock_irqsave+0x3a/0x60 [ 109.459335][ C1] ? _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 109.465274][ C1] _snd_pcm_stream_lock_irqsave+0xa0/0xd0 [ 109.471027][ C1] snd_pcm_period_elapsed+0x20/0x50 [ 109.476259][ C1] dummy_hrtimer_callback+0x9d/0x1c0 [ 109.481585][ C1] __hrtimer_run_queues+0x20f/0xc20 [ 109.486819][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 109.492626][ C1] ? ktime_get_update_offsets_now+0x3bd/0x620 [ 109.498727][ C1] hrtimer_run_softirq+0x17d/0x350 [ 109.503880][ C1] __do_softirq+0x21b/0x8de [ 109.508426][ C1] ? __pfx___do_softirq+0x10/0x10 [ 109.513499][ C1] ? srso_return_thunk+0x5/0x5f [ 109.518407][ C1] irq_exit_rcu+0xb9/0x120 [ 109.522868][ C1] sysvec_apic_timer_interrupt+0x95/0xb0 [ 109.528646][ C1] [ 109.531581][ C1] [ 109.534518][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 109.540545][ C1] RIP: 0010:acpi_safe_halt+0x1a/0x20 [ 109.545861][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 38 74 30 75 48 8b 00 a8 08 75 0c eb 07 0f 00 2d e8 b2 a6 00 fb f4 e9 00 c8 03 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 109.565500][ C1] RSP: 0018:ffffc90000197d58 EFLAGS: 00000246 [ 109.571604][ C1] RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8ad342d9 [ 109.579599][ C1] RDX: 0000000000000001 RSI: ffff88801b6ae800 RDI: ffff88801b6ae864 [ 109.587591][ C1] RBP: ffff88801b6ae864 R08: 0000000000000001 R09: ffffed10172a6fdd [ 109.595597][ C1] R10: ffff8880b9537eeb R11: 0000000000000000 R12: ffff8880183cf000 [ 109.603622][ C1] R13: ffffffff8e32a760 R14: 0000000000000001 R15: 0000000000000000 [ 109.611643][ C1] ? ct_kernel_exit+0x139/0x190 [ 109.616553][ C1] ? srso_return_thunk+0x5/0x5f [ 109.621452][ C1] acpi_idle_enter+0xc5/0x160 [ 109.626161][ C1] cpuidle_enter_state+0x88/0x510 [ 109.631234][ C1] ? __pfx_tsc_verify_tsc_adjust+0x10/0x10 [ 109.637079][ C1] cpuidle_enter+0x4e/0xa0 [ 109.641529][ C1] do_idle+0x313/0x3f0 [ 109.645669][ C1] ? __pfx_do_idle+0x10/0x10 [pid 5076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5078 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x55557632b660, 24) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [ 109.650309][ C1] ? __schedule+0xf1d/0x5c70 [ 109.654960][ C1] cpu_startup_entry+0x4f/0x60 [ 109.659777][ C1] start_secondary+0x220/0x2b0 [ 109.664594][ C1] ? __pfx_start_secondary+0x10/0x10 [ 109.669940][ C1] common_startup_64+0x13e/0x148 [ 109.674917][ C1] [pid 5078] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5078] write(3, "\\", 1) = 1 [pid 5078] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5078] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5078] exit_group(0) = ? [pid 5078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached , child_tidptr=0x55557632b650) = 5079 [pid 5079] set_robust_list(0x55557632b660, 24) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5079] write(3, "\\", 1) = 1 [pid 5079] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5079] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5079] exit_group(0) = ? [pid 5079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x55557632b660, 24 [pid 5075] <... clone resumed>, child_tidptr=0x55557632b650) = 5080 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5080] write(3, "\\", 1) = 1 [pid 5080] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5080] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5080] exit_group(0) = ? [pid 5080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached [pid 5081] set_robust_list(0x55557632b660, 24 [pid 5075] <... clone resumed>, child_tidptr=0x55557632b650) = 5081 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5081] write(3, "\\", 1) = 1 [pid 5081] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5081] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5081] exit_group(0) = ? [pid 5081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x55557632b660, 24) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... clone resumed>, child_tidptr=0x55557632b650) = 5083 [pid 5083] <... prctl resumed>) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1000", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5083] write(3, "\\", 1) = 1 [pid 5083] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5083] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5083] exit_group(0) = ? [pid 5083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5084 ./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55557632b660, 24) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5084] write(3, "\\", 1) = 1 [pid 5084] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5084] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5084] exit_group(0) = ? [pid 5084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5085 ./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x55557632b660, 24) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1000", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5085] write(3, "\\", 1) = 1 [pid 5085] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5085] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5085] exit_group(0) = ? [pid 5085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x55557632b660, 24 [pid 5075] <... clone resumed>, child_tidptr=0x55557632b650) = 5086 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5086] write(3, "\\", 1) = 1 [pid 5086] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5086] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5086] exit_group(0) = ? [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5087] set_robust_list(0x55557632b660, 24) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] setpgid(0, 0) = 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5087] write(3, "1000", 4) = 4 [pid 5087] close(3) = 0 [pid 5087] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5087] write(3, "\\", 1) = 1 [pid 5087] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5087] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5087] exit_group(0) = ? [pid 5087] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5089 ./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x55557632b660, 24) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 [pid 5089] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5089] write(3, "\\", 1) = 1 [pid 5089] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5089] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5089] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5090 ./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x55557632b660, 24) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3) = 0 [pid 5090] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5090] write(3, "\\", 1) = 1 [pid 5090] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5090] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5090] exit_group(0) = ? [pid 5090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5091 ./strace-static-x86_64: Process 5091 attached [pid 5091] set_robust_list(0x55557632b660, 24) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5091] setpgid(0, 0) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5091] write(3, "1000", 4) = 4 [pid 5091] close(3) = 0 [pid 5091] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5091] write(3, "\\", 1) = 1 [pid 5091] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5091] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5091] exit_group(0) = ? [pid 5091] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5092 ./strace-static-x86_64: Process 5092 attached [pid 5092] set_robust_list(0x55557632b660, 24) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5092] write(3, "\\", 1) = 1 [pid 5092] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5092] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5092] exit_group(0) = ? [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5093 ./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x55557632b660, 24) = 0 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] setpgid(0, 0) = 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1000", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5093] write(3, "\\", 1) = 1 [pid 5093] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5093] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5093] exit_group(0) = ? [pid 5093] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557632b650) = 5094 ./strace-static-x86_64: Process 5094 attached [pid 5094] set_robust_list(0x55557632b660, 24) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 3 [pid 5094] write(3, "\\", 1) = 1 [pid 5094] openat(AT_FDCWD, "/dev/snd/seq", O_RDONLY) = 4 [pid 5094] ioctl(4, SNDRV_SEQ_IOCTL_CREATE_QUEUE, 0x20000180) = 0 [pid 5094] exit_group(0) = ?