./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3548713516 <...> Warning: Permanently added '10.128.1.39' (ED25519) to the list of known hosts. execve("./syz-executor3548713516", ["./syz-executor3548713516"], 0x7ffd98779740 /* 10 vars */) = 0 brk(NULL) = 0x55558306b000 brk(0x55558306bd00) = 0x55558306bd00 arch_prctl(ARCH_SET_FS, 0x55558306b380) = 0 set_tid_address(0x55558306b650) = 5061 set_robust_list(0x55558306b660, 24) = 0 rseq(0x55558306bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3548713516", 4096) = 28 getrandom("\x96\x00\xd4\x1c\xa5\x1a\x1d\x10", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558306bd00 brk(0x55558308cd00) = 0x55558308cd00 brk(0x55558308d000) = 0x55558308d000 mprotect(0x7fde9b58b000, 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, child_tidptr=0x55558306b650) = 5062 ./strace-static-x86_64: Process 5062 attached [pid 5062] set_robust_list(0x55558306b660, 24) = 0 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] setpgid(0, 0) = 0 [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1000", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5062] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 4 [pid 5062] write(4, "\x5c\xba\x91\xa4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4294967257 [pid 5061] kill(-5062, SIGKILL) = 0 [pid 5062] <... write resumed>) = ? [pid 5061] kill(5062, SIGKILL) = 0 [ 79.150110][ T5062] [ 79.152565][ T5062] ======================================================== [ 79.159756][ T5062] WARNING: possible irq lock inversion dependency detected [ 79.167030][ T5062] 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted [ 79.173787][ T5062] -------------------------------------------------------- [ 79.180983][ T5062] syz-executor354/5062 just changed the state of lock: [ 79.188700][ T5062] ffff888027957148 (&timer->lock){+.+.}-{2:2}, at: snd_timer_close_locked+0x53/0x8d0 [ 79.198221][ T5062] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 79.206302][ T5062] (&group->lock#2){..-.}-{2:2} [ 79.206349][ T5062] [ 79.206349][ T5062] [ 79.206349][ T5062] and interrupts could create inverse lock ordering between them. [ 79.206349][ T5062] [ 79.225521][ T5062] [ 79.225521][ T5062] other info that might help us debug this: [ 79.233578][ T5062] Possible interrupt unsafe locking scenario: [ 79.233578][ T5062] [ 79.241892][ T5062] CPU0 CPU1 [ 79.247255][ T5062] ---- ---- [ 79.252613][ T5062] lock(&timer->lock); [ 79.256775][ T5062] local_irq_disable(); [ 79.263526][ T5062] lock(&group->lock#2); [ 79.270383][ T5062] lock(&timer->lock); [ 79.277059][ T5062] [ 79.280598][ T5062] lock(&group->lock#2); [ 79.285116][ T5062] [ 79.285116][ T5062] *** DEADLOCK *** [ 79.285116][ T5062] [ 79.293351][ T5062] 3 locks held by syz-executor354/5062: [ 79.298904][ T5062] #0: ffffffff8f2d3228 (register_mutex#4){+.+.}-{3:3}, at: odev_release+0x4e/0x80 [ 79.308250][ T5062] #1: ffff88801ec04d78 (&q->timer_mutex){+.+.}-{3:3}, at: snd_seq_queue_delete+0x5b/0xf0 [ 79.318181][ T5062] #2: ffffffff8f2c1a68 (register_mutex){+.+.}-{3:3}, at: snd_timer_close+0xa3/0x130 [ 79.327737][ T5062] [ 79.327737][ T5062] the shortest dependencies between 2nd lock and 1st lock: [ 79.337136][ T5062] -> (&group->lock#2){..-.}-{2:2} { [ 79.342470][ T5062] IN-SOFTIRQ-W at: [ 79.346541][ T5062] lock_acquire+0x1e4/0x530 [ 79.352906][ T5062] _raw_spin_lock_irqsave+0xd5/0x120 [ 79.360035][ T5062] snd_pcm_period_elapsed+0x21/0x50 [ 79.367072][ T5062] dummy_hrtimer_callback+0x7f/0x180 [ 79.374194][ T5062] __hrtimer_run_queues+0x595/0xd00 [ 79.381235][ T5062] hrtimer_run_softirq+0x19a/0x2c0 [ 79.388195][ T5062] __do_softirq+0x2bc/0x943 [ 79.394526][ T5062] __irq_exit_rcu+0xf2/0x1c0 [ 79.400941][ T5062] irq_exit_rcu+0x9/0x30 [ 79.407008][ T5062] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 79.414484][ T5062] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 79.422297][ T5062] acpi_safe_halt+0x21/0x30 [ 79.428635][ T5062] acpi_idle_enter+0xe4/0x140 [ 79.435144][ T5062] cpuidle_enter_state+0x118/0x490 [ 79.442078][ T5062] cpuidle_enter+0x5d/0xa0 [ 79.448323][ T5062] do_idle+0x375/0x5d0 [ 79.454592][ T5062] cpu_startup_entry+0x42/0x60 [ 79.462069][ T5062] rest_init+0x2e0/0x300 [ 79.468158][ T5062] arch_call_rest_init+0xe/0x10 [ 79.474888][ T5062] start_kernel+0x47a/0x500 [ 79.481229][ T5062] x86_64_start_reservations+0x2a/0x30 [ 79.488518][ T5062] x86_64_start_kernel+0x99/0xa0 [ 79.495288][ T5062] common_startup_64+0x13e/0x147 [ 79.502054][ T5062] INITIAL USE at: [ 79.506037][ T5062] lock_acquire+0x1e4/0x530 [ 79.512276][ T5062] _raw_spin_lock_irq+0xd3/0x120 [ 79.518956][ T5062] snd_pcm_hw_params+0x201/0x1ea0 [ 79.525895][ T5062] snd_pcm_oss_change_params_locked+0x20d5/0x3e00 [ 79.534052][ T5062] snd_pcm_oss_write+0x2d5/0x11f0 [ 79.540816][ T5062] vfs_write+0x2a4/0xcb0 [ 79.546796][ T5062] ksys_write+0x1a0/0x2c0 [ 79.552885][ T5062] do_syscall_64+0xfb/0x240 [ 79.559128][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.566759][ T5062] } [ 79.569342][ T5062] ... key at: [] snd_pcm_group_init.__key+0x0/0x20 [ 79.578108][ T5062] ... acquired at: [ 79.582013][ T5062] lock_acquire+0x1e4/0x530 [ 79.586708][ T5062] _raw_spin_lock_irqsave+0xd5/0x120 [ 79.592169][ T5062] snd_timer_notify+0x103/0x3d0 [ 79.597198][ T5062] snd_pcm_start+0x3fa/0x4c0 [ 79.601961][ T5062] __snd_pcm_lib_xfer+0x18bf/0x1e30 [ 79.607325][ T5062] snd_pcm_oss_write3+0x1c4/0x350 [ 79.612523][ T5062] snd_pcm_oss_write+0xaf9/0x11f0 [ 79.617739][ T5062] vfs_write+0x2a4/0xcb0 [ 79.622170][ T5062] ksys_write+0x1a0/0x2c0 [ 79.626668][ T5062] do_syscall_64+0xfb/0x240 [ 79.631363][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.637446][ T5062] [ 79.639770][ T5062] -> (&timer->lock){+.+.}-{2:2} { [ 79.644807][ T5062] HARDIRQ-ON-W at: [ 79.648784][ T5062] lock_acquire+0x1e4/0x530 [ 79.654932][ T5062] _raw_spin_lock+0x2e/0x40 [ 79.661086][ T5062] snd_timer_close_locked+0x53/0x8d0 [ 79.668026][ T5062] snd_timer_close+0xae/0x130 [ 79.674449][ T5062] snd_seq_timer_close+0xa9/0xe0 [ 79.681038][ T5062] snd_seq_queue_delete+0x8f/0xf0 [ 79.687831][ T5062] snd_seq_oss_release+0x1d3/0x310 [ 79.694600][ T5062] odev_release+0x56/0x80 [ 79.700602][ T5062] __fput+0x429/0x8a0 [ 79.706254][ T5062] task_work_run+0x24f/0x310 [ 79.712514][ T5062] do_exit+0xa1b/0x27e0 [ 79.718327][ T5062] do_group_exit+0x207/0x2c0 [ 79.724583][ T5062] get_signal+0x176e/0x1850 [ 79.730920][ T5062] arch_do_signal_or_restart+0x96/0x860 [ 79.738133][ T5062] syscall_exit_to_user_mode+0xc9/0x360 [ 79.745336][ T5062] do_syscall_64+0x10a/0x240 [ 79.751575][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.759130][ T5062] SOFTIRQ-ON-W at: [ 79.763116][ T5062] lock_acquire+0x1e4/0x530 [ 79.769709][ T5062] _raw_spin_lock+0x2e/0x40 [ 79.775874][ T5062] snd_timer_close_locked+0x53/0x8d0 [ 79.782820][ T5062] snd_timer_close+0xae/0x130 [ 79.789158][ T5062] snd_seq_timer_close+0xa9/0xe0 [ 79.795939][ T5062] snd_seq_queue_delete+0x8f/0xf0 [ 79.802816][ T5062] snd_seq_oss_release+0x1d3/0x310 [ 79.809601][ T5062] odev_release+0x56/0x80 [ 79.815581][ T5062] __fput+0x429/0x8a0 [ 79.821237][ T5062] task_work_run+0x24f/0x310 [ 79.827476][ T5062] do_exit+0xa1b/0x27e0 [ 79.833281][ T5062] do_group_exit+0x207/0x2c0 [ 79.839525][ T5062] get_signal+0x176e/0x1850 [ 79.845706][ T5062] arch_do_signal_or_restart+0x96/0x860 [ 79.852905][ T5062] syscall_exit_to_user_mode+0xc9/0x360 [ 79.860107][ T5062] do_syscall_64+0x10a/0x240 [ 79.867334][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.874913][ T5062] INITIAL USE at: [ 79.878815][ T5062] lock_acquire+0x1e4/0x530 [ 79.884882][ T5062] _raw_spin_lock_irqsave+0xd5/0x120 [ 79.891760][ T5062] snd_timer_notify+0x103/0x3d0 [ 79.898354][ T5062] snd_pcm_start+0x3fa/0x4c0 [ 79.904510][ T5062] __snd_pcm_lib_xfer+0x18bf/0x1e30 [ 79.911271][ T5062] snd_pcm_oss_write3+0x1c4/0x350 [ 79.917884][ T5062] snd_pcm_oss_write+0xaf9/0x11f0 [ 79.924482][ T5062] vfs_write+0x2a4/0xcb0 [ 79.930285][ T5062] ksys_write+0x1a0/0x2c0 [ 79.936178][ T5062] do_syscall_64+0xfb/0x240 [ 79.942251][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 79.949711][ T5062] } [ 79.952204][ T5062] ... key at: [] snd_timer_new.__key+0x0/0x20 [ 79.960389][ T5062] ... acquired at: [ 79.964193][ T5062] mark_lock+0x223/0x350 [ 79.968616][ T5062] __lock_acquire+0x116e/0x1fd0 [ 79.973783][ T5062] lock_acquire+0x1e4/0x530 [ 79.978454][ T5062] _raw_spin_lock+0x2e/0x40 [ 79.983134][ T5062] snd_timer_close_locked+0x53/0x8d0 [ 79.988596][ T5062] snd_timer_close+0xae/0x130 [ 79.993458][ T5062] snd_seq_timer_close+0xa9/0xe0 [ 79.998582][ T5062] snd_seq_queue_delete+0x8f/0xf0 [ 80.003837][ T5062] snd_seq_oss_release+0x1d3/0x310 [ 80.009140][ T5062] odev_release+0x56/0x80 [ 80.013648][ T5062] __fput+0x429/0x8a0 [ 80.017830][ T5062] task_work_run+0x24f/0x310 [ 80.022606][ T5062] do_exit+0xa1b/0x27e0 [ 80.026936][ T5062] do_group_exit+0x207/0x2c0 [ 80.031709][ T5062] get_signal+0x176e/0x1850 [ 80.036409][ T5062] arch_do_signal_or_restart+0x96/0x860 [ 80.042135][ T5062] syscall_exit_to_user_mode+0xc9/0x360 [ 80.047868][ T5062] do_syscall_64+0x10a/0x240 [ 80.052638][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.058716][ T5062] [ 80.061036][ T5062] [ 80.061036][ T5062] stack backtrace: [ 80.066928][ T5062] CPU: 1 PID: 5062 Comm: syz-executor354 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 80.076987][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 80.087042][ T5062] Call Trace: [ 80.090336][ T5062] [ 80.093264][ T5062] dump_stack_lvl+0x241/0x360 [ 80.097954][ T5062] ? __pfx_dump_stack_lvl+0x10/0x10 [ 80.103154][ T5062] ? print_shortest_lock_dependencies+0xf2/0x160 [ 80.109494][ T5062] ? print_irq_inversion_bug+0x329/0x3a0 [ 80.115133][ T5062] mark_lock_irq+0x867/0xc20 [ 80.119732][ T5062] ? __pfx_mark_lock_irq+0x10/0x10 [ 80.124853][ T5062] ? stack_trace_save+0x118/0x1d0 [ 80.129883][ T5062] ? __pfx_stack_trace_save+0x10/0x10 [ 80.135352][ T5062] ? save_trace+0x749/0xb40 [ 80.139864][ T5062] mark_lock+0x223/0x350 [ 80.144197][ T5062] __lock_acquire+0x116e/0x1fd0 [ 80.149076][ T5062] lock_acquire+0x1e4/0x530 [pid 5061] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5061] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [ 80.153575][ T5062] ? snd_timer_close_locked+0x53/0x8d0 [ 80.159039][ T5062] ? __pfx___mutex_trylock_common+0x10/0x10 [ 80.164934][ T5062] ? __pfx_lock_acquire+0x10/0x10 [ 80.169972][ T5062] ? rcu_is_watching+0x15/0xb0 [ 80.174742][ T5062] ? trace_contention_end+0x3c/0x100 [ 80.180072][ T5062] ? __mutex_lock+0x2ef/0xd70 [ 80.184783][ T5062] ? snd_timer_close+0xa3/0x130 [ 80.189662][ T5062] _raw_spin_lock+0x2e/0x40 [ 80.194195][ T5062] ? snd_timer_close_locked+0x53/0x8d0 [ 80.199669][ T5062] snd_timer_close_locked+0x53/0x8d0 [pid 5061] getdents64(3, 0x55558306c6f0 /* 2 entries */, 32768) = 48 [pid 5061] getdents64(3, 0x55558306c6f0 /* 0 entries */, 32768) = 0 [pid 5061] close(3) = 0 [ 80.204971][ T5062] snd_timer_close+0xae/0x130 [ 80.209750][ T5062] ? __pfx_snd_timer_close+0x10/0x10 [ 80.215050][ T5062] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.220258][ T5062] ? lockdep_hardirqs_on+0x99/0x150 [ 80.225472][ T5062] snd_seq_timer_close+0xa9/0xe0 [ 80.230438][ T5062] snd_seq_queue_delete+0x8f/0xf0 [ 80.235477][ T5062] snd_seq_oss_release+0x1d3/0x310 [ 80.240598][ T5062] ? __pfx_snd_seq_oss_release+0x10/0x10 [ 80.246238][ T5062] ? __asan_memset+0x23/0x50 [ 80.250843][ T5062] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 80.257175][ T5062] ? evm_file_release+0x140/0x1d0 [ 80.262199][ T5062] ? __pfx_odev_release+0x10/0x10 [ 80.267223][ T5062] odev_release+0x56/0x80 [ 80.271553][ T5062] __fput+0x429/0x8a0 [ 80.275564][ T5062] task_work_run+0x24f/0x310 [ 80.280163][ T5062] ? __pfx_task_work_run+0x10/0x10 [ 80.285282][ T5062] ? switch_task_namespaces+0xe1/0x110 [ 80.290744][ T5062] do_exit+0xa1b/0x27e0 [ 80.294908][ T5062] ? __pfx_do_exit+0x10/0x10 [ 80.299519][ T5062] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 80.304914][ T5062] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 80.310894][ T5062] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 80.317219][ T5062] ? _raw_spin_lock_irq+0xdf/0x120 [ 80.322338][ T5062] do_group_exit+0x207/0x2c0 [ 80.326929][ T5062] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.332132][ T5062] ? lockdep_hardirqs_on+0x99/0x150 [ 80.337336][ T5062] get_signal+0x176e/0x1850 [ 80.341851][ T5062] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 80.348192][ T5062] ? __pfx_get_signal+0x10/0x10 [ 80.353158][ T5062] arch_do_signal_or_restart+0x96/0x860 [ 80.358715][ T5062] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 80.364875][ T5062] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 80.370863][ T5062] ? syscall_exit_to_user_mode+0xa3/0x360 [ 80.376591][ T5062] syscall_exit_to_user_mode+0xc9/0x360 [ 80.382156][ T5062] do_syscall_64+0x10a/0x240 [ 80.386755][ T5062] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.392750][ T5062] RIP: 0033:0x7fde9b518a39 [ 80.397185][ T5062] Code: Unable to access opcode bytes at 0x7fde9b518a0f. [pid 5062] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5062, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5063 attached , child_tidptr=0x55558306b650) = 5063 [pid 5063] set_robust_list(0x55558306b660, 24) = 0 [ 80.404200][ T5062] RSP: 002b:00007ffd4bd4d288 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.412630][ T5062] RAX: 0000000000019003 RBX: 0000000000000000 RCX: 00007fde9b518a39 [ 80.420633][ T5062] RDX: 00000000ffffffd9 RSI: 00000000200001c0 RDI: 0000000000000004 [ 80.428620][ T5062] RBP: 00007fde9b58b5f0 R08: 0000000000000006 R09: 0000000000000006 [ 80.436607][ T5062] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 80.444594][ T5062] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 80.452573][ T5062] [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5063] setpgid(0, 0) = 0 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1000", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5063] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 4 [pid 5063] write(4, "\x5c\xba\x91\xa4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4294967257 [pid 5061] kill(-5063, SIGKILL) = 0 [pid 5063] <... write resumed>) = ? [pid 5061] kill(5063, SIGKILL) = 0 [pid 5063] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5063, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5065 attached , child_tidptr=0x55558306b650) = 5065 [pid 5065] set_robust_list(0x55558306b660, 24) = 0 [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] setpgid(0, 0) = 0 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1000", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5065] openat(AT_FDCWD, "/dev/dsp", O_RDWR|O_CREAT, 000) = 4 [ 87.018282][ T784] cfg80211: failed to load regulatory.db