./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3756244548 <...> Warning: Permanently added '10.128.1.75' (ED25519) to the list of known hosts. execve("./syz-executor3756244548", ["./syz-executor3756244548"], 0x7ffd82046940 /* 10 vars */) = 0 brk(NULL) = 0x555589db6000 brk(0x555589db6d00) = 0x555589db6d00 arch_prctl(ARCH_SET_FS, 0x555589db6380) = 0 set_tid_address(0x555589db6650) = 5071 set_robust_list(0x555589db6660, 24) = 0 rseq(0x555589db6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3756244548", 4096) = 28 getrandom("\xe9\x12\x4f\x96\x51\x17\x03\x7f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555589db6d00 brk(0x555589dd7d00) = 0x555589dd7d00 brk(0x555589dd8000) = 0x555589dd8000 mprotect(0x7f457ef56000, 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 5072 attached [pid 5072] set_robust_list(0x555589db6660, 24 [pid 5071] <... clone resumed>, child_tidptr=0x555589db6650) = 5072 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1000", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5072] openat(AT_FDCWD, "/dev/dsp", O_WRONLY|O_APPEND) = 4 [pid 5072] write(4, "\xe1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4294966701 [pid 5071] kill(-5072, SIGKILL) = 0 [pid 5072] <... write resumed>) = ? [pid 5071] kill(5072, SIGKILL) = 0 [ 80.430775][ T5072] [ 80.433137][ T5072] ======================================================== [ 80.440348][ T5072] WARNING: possible irq lock inversion dependency detected [ 80.447543][ T5072] 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted [ 80.454235][ T5072] -------------------------------------------------------- [ 80.461428][ T5072] syz-executor375/5072 just changed the state of lock: [ 80.468276][ T5072] ffff888029343948 (&timer->lock){+.+.}-{2:2}, at: snd_timer_close_locked+0x53/0x8d0 [ 80.477822][ T5072] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 80.485883][ T5072] (&group->lock#2){..-.}-{2:2} [ 80.485921][ T5072] [ 80.485921][ T5072] [ 80.485921][ T5072] and interrupts could create inverse lock ordering between them. [ 80.485921][ T5072] [ 80.505065][ T5072] [ 80.505065][ T5072] other info that might help us debug this: [ 80.513149][ T5072] Possible interrupt unsafe locking scenario: [ 80.513149][ T5072] [ 80.521467][ T5072] CPU0 CPU1 [ 80.526824][ T5072] ---- ---- [ 80.532271][ T5072] lock(&timer->lock); [ 80.536448][ T5072] local_irq_disable(); [ 80.543209][ T5072] lock(&group->lock#2); [ 80.550079][ T5072] lock(&timer->lock); [ 80.556773][ T5072] [ 80.560234][ T5072] lock(&group->lock#2); [ 80.564756][ T5072] [ 80.564756][ T5072] *** DEADLOCK *** [ 80.564756][ T5072] [ 80.572899][ T5072] 3 locks held by syz-executor375/5072: [ 80.578443][ T5072] #0: ffffffff8f2e5728 (register_mutex#4){+.+.}-{3:3}, at: odev_release+0x4e/0x80 [ 80.587813][ T5072] #1: ffff88807cd9c178 (&q->timer_mutex){+.+.}-{3:3}, at: snd_seq_queue_delete+0x5b/0xf0 [ 80.597767][ T5072] #2: ffffffff8f2d3f68 (register_mutex){+.+.}-{3:3}, at: snd_timer_close+0xa3/0x130 [ 80.607303][ T5072] [ 80.607303][ T5072] the shortest dependencies between 2nd lock and 1st lock: [ 80.616708][ T5072] -> (&group->lock#2){..-.}-{2:2} { [ 80.622051][ T5072] IN-SOFTIRQ-W at: [ 80.626120][ T5072] lock_acquire+0x1e4/0x530 [ 80.632468][ T5072] _raw_spin_lock_irqsave+0xd5/0x120 [ 80.639695][ T5072] snd_pcm_period_elapsed+0x21/0x50 [ 80.646741][ T5072] dummy_hrtimer_callback+0x7f/0x180 [ 80.653912][ T5072] __hrtimer_run_queues+0x597/0xd00 [ 80.660976][ T5072] hrtimer_run_softirq+0x19a/0x2c0 [ 80.667955][ T5072] __do_softirq+0x2be/0x943 [ 80.674310][ T5072] __irq_exit_rcu+0xf2/0x1c0 [ 80.680734][ T5072] irq_exit_rcu+0x9/0x30 [ 80.686815][ T5072] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 80.694312][ T5072] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 80.702132][ T5072] finish_task_switch+0x1ea/0x870 [ 80.708994][ T5072] __schedule+0x17db/0x4a20 [ 80.715417][ T5072] schedule_idle+0x53/0x90 [ 80.721830][ T5072] do_idle+0x56a/0x5d0 [ 80.727731][ T5072] cpu_startup_entry+0x42/0x60 [ 80.734324][ T5072] rest_init+0x2e0/0x300 [ 80.740399][ T5072] arch_call_rest_init+0xe/0x10 [ 80.747078][ T5072] start_kernel+0x47a/0x500 [ 80.753411][ T5072] x86_64_start_reservations+0x2a/0x30 [ 80.760722][ T5072] x86_64_start_kernel+0x99/0xa0 [ 80.767597][ T5072] common_startup_64+0x13e/0x147 [ 80.774379][ T5072] INITIAL USE at: [ 80.778369][ T5072] lock_acquire+0x1e4/0x530 [ 80.784630][ T5072] _raw_spin_lock_irq+0xd3/0x120 [ 80.791328][ T5072] snd_pcm_hw_params+0x201/0x1ea0 [ 80.798108][ T5072] snd_pcm_oss_change_params_locked+0x20d5/0x3e00 [ 80.806277][ T5072] snd_pcm_oss_write+0x2d5/0x11f0 [ 80.813076][ T5072] vfs_write+0x2a6/0xcb0 [ 80.819086][ T5072] ksys_write+0x1a0/0x2c0 [ 80.825168][ T5072] do_syscall_64+0xfd/0x240 [ 80.831416][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.839058][ T5072] } [ 80.841659][ T5072] ... key at: [] snd_pcm_group_init.__key+0x0/0x20 [ 80.850357][ T5072] ... acquired at: [ 80.854257][ T5072] lock_acquire+0x1e4/0x530 [ 80.858968][ T5072] _raw_spin_lock_irqsave+0xd5/0x120 [ 80.864456][ T5072] snd_timer_notify+0x103/0x3d0 [ 80.869530][ T5072] snd_pcm_start+0x3fc/0x4c0 [ 80.874332][ T5072] __snd_pcm_lib_xfer+0x18bf/0x1e30 [ 80.879719][ T5072] snd_pcm_oss_write3+0x1c4/0x350 [ 80.884940][ T5072] snd_pcm_oss_write+0xaf9/0x11f0 [ 80.890154][ T5072] vfs_write+0x2a6/0xcb0 [ 80.894576][ T5072] ksys_write+0x1a0/0x2c0 [ 80.899089][ T5072] do_syscall_64+0xfd/0x240 [ 80.903770][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.909852][ T5072] [ 80.912262][ T5072] -> (&timer->lock){+.+.}-{2:2} { [ 80.917324][ T5072] HARDIRQ-ON-W at: [ 80.921302][ T5072] lock_acquire+0x1e4/0x530 [ 80.927463][ T5072] _raw_spin_lock+0x2e/0x40 [ 80.933634][ T5072] snd_timer_close_locked+0x53/0x8d0 [ 80.940581][ T5072] snd_timer_close+0xae/0x130 [ 80.946934][ T5072] snd_seq_timer_close+0xa9/0xe0 [ 80.953565][ T5072] snd_seq_queue_delete+0x8f/0xf0 [ 80.960249][ T5072] snd_seq_oss_release+0x1d3/0x310 [ 80.967014][ T5072] odev_release+0x56/0x80 [ 80.973007][ T5072] __fput+0x42b/0x8a0 [ 80.978643][ T5072] task_work_run+0x251/0x310 [ 80.984904][ T5072] do_exit+0xa1b/0x27e0 [ 80.990741][ T5072] do_group_exit+0x207/0x2c0 [ 80.997008][ T5072] get_signal+0x176e/0x1850 [ 81.003188][ T5072] arch_do_signal_or_restart+0x96/0x860 [ 81.010448][ T5072] syscall_exit_to_user_mode+0xc9/0x360 [ 81.017665][ T5072] do_syscall_64+0x10a/0x240 [ 81.023912][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 81.031469][ T5072] SOFTIRQ-ON-W at: [ 81.035449][ T5072] lock_acquire+0x1e4/0x530 [ 81.041606][ T5072] _raw_spin_lock+0x2e/0x40 [ 81.047779][ T5072] snd_timer_close_locked+0x53/0x8d0 [ 81.054760][ T5072] snd_timer_close+0xae/0x130 [ 81.061102][ T5072] snd_seq_timer_close+0xa9/0xe0 [ 81.067793][ T5072] snd_seq_queue_delete+0x8f/0xf0 [ 81.074514][ T5072] snd_seq_oss_release+0x1d3/0x310 [ 81.081292][ T5072] odev_release+0x56/0x80 [ 81.087288][ T5072] __fput+0x42b/0x8a0 [ 81.092947][ T5072] task_work_run+0x251/0x310 [ 81.099199][ T5072] do_exit+0xa1b/0x27e0 [ 81.105015][ T5072] do_group_exit+0x207/0x2c0 [ 81.111266][ T5072] get_signal+0x176e/0x1850 [ 81.117459][ T5072] arch_do_signal_or_restart+0x96/0x860 [ 81.124708][ T5072] syscall_exit_to_user_mode+0xc9/0x360 [ 81.131964][ T5072] do_syscall_64+0x10a/0x240 [ 81.138230][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 81.145824][ T5072] INITIAL USE at: [ 81.149737][ T5072] lock_acquire+0x1e4/0x530 [ 81.155817][ T5072] _raw_spin_lock_irqsave+0xd5/0x120 [ 81.162706][ T5072] snd_timer_notify+0x103/0x3d0 [ 81.169145][ T5072] snd_pcm_start+0x3fc/0x4c0 [ 81.175313][ T5072] __snd_pcm_lib_xfer+0x18bf/0x1e30 [ 81.182181][ T5072] snd_pcm_oss_write3+0x1c4/0x350 [ 81.188777][ T5072] snd_pcm_oss_write+0xaf9/0x11f0 [ 81.195379][ T5072] vfs_write+0x2a6/0xcb0 [ 81.201190][ T5072] ksys_write+0x1a0/0x2c0 [ 81.207096][ T5072] do_syscall_64+0xfd/0x240 [ 81.213169][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 81.220643][ T5072] } [ 81.223138][ T5072] ... key at: [] snd_timer_new.__key+0x0/0x20 [ 81.231313][ T5072] ... acquired at: [ 81.235106][ T5072] mark_lock+0x223/0x350 [ 81.239546][ T5072] __lock_acquire+0x116e/0x1fd0 [ 81.244572][ T5072] lock_acquire+0x1e4/0x530 [ 81.249248][ T5072] _raw_spin_lock+0x2e/0x40 [ 81.253944][ T5072] snd_timer_close_locked+0x53/0x8d0 [ 81.259416][ T5072] snd_timer_close+0xae/0x130 [ 81.264374][ T5072] snd_seq_timer_close+0xa9/0xe0 [ 81.269485][ T5072] snd_seq_queue_delete+0x8f/0xf0 [ 81.274697][ T5072] snd_seq_oss_release+0x1d3/0x310 [ 81.279993][ T5072] odev_release+0x56/0x80 [pid 5071] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5071] getdents64(3, 0x555589db76f0 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(3, 0x555589db76f0 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [ 81.284511][ T5072] __fput+0x42b/0x8a0 [ 81.288692][ T5072] task_work_run+0x251/0x310 [ 81.293480][ T5072] do_exit+0xa1b/0x27e0 [ 81.297892][ T5072] do_group_exit+0x207/0x2c0 [ 81.302697][ T5072] get_signal+0x176e/0x1850 [ 81.307413][ T5072] arch_do_signal_or_restart+0x96/0x860 [ 81.313208][ T5072] syscall_exit_to_user_mode+0xc9/0x360 [ 81.318971][ T5072] do_syscall_64+0x10a/0x240 [ 81.323749][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 81.329841][ T5072] [ 81.332169][ T5072] [ 81.332169][ T5072] stack backtrace: [ 81.338063][ T5072] CPU: 1 PID: 5072 Comm: syz-executor375 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 81.348148][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 81.358227][ T5072] Call Trace: [ 81.361523][ T5072] [ 81.364465][ T5072] dump_stack_lvl+0x241/0x360 [ 81.369188][ T5072] ? __pfx_dump_stack_lvl+0x10/0x10 [ 81.374464][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.379339][ T5072] ? print_shortest_lock_dependencies+0xf2/0x160 [ 81.385691][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.390565][ T5072] ? print_irq_inversion_bug+0x329/0x3a0 [ 81.396223][ T5072] mark_lock_irq+0x867/0xc20 [ 81.400880][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.405771][ T5072] ? __pfx_mark_lock_irq+0x10/0x10 [ 81.410933][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.415808][ T5072] ? stack_trace_save+0x118/0x1d0 [ 81.420878][ T5072] ? __pfx_stack_trace_save+0x10/0x10 [ 81.426290][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.431168][ T5072] ? save_trace+0x749/0xb40 [ 81.435700][ T5072] mark_lock+0x223/0x350 [ 81.439973][ T5072] __lock_acquire+0x116e/0x1fd0 [ 81.444902][ T5072] lock_acquire+0x1e4/0x530 [ 81.449501][ T5072] ? snd_timer_close_locked+0x53/0x8d0 [ 81.455013][ T5072] ? __pfx___mutex_trylock_common+0x10/0x10 [ 81.460962][ T5072] ? __pfx_lock_acquire+0x10/0x10 [ 81.466000][ T5072] ? rcu_is_watching+0x15/0xb0 [ 81.470787][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.475652][ T5072] ? trace_contention_end+0x3c/0x100 [ 81.480960][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.485826][ T5072] ? __mutex_lock+0x2ef/0xd70 [ 81.490521][ T5072] ? snd_timer_close+0xa3/0x130 [ 81.495472][ T5072] _raw_spin_lock+0x2e/0x40 [ 81.500023][ T5072] ? snd_timer_close_locked+0x53/0x8d0 [ 81.505500][ T5072] snd_timer_close_locked+0x53/0x8d0 [ 81.510805][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.515671][ T5072] snd_timer_close+0xae/0x130 [ 81.520371][ T5072] ? __pfx_snd_timer_close+0x10/0x10 [ 81.525673][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 81.530906][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.535779][ T5072] ? lockdep_hardirqs_on+0x99/0x150 [ 81.541004][ T5072] snd_seq_timer_close+0xa9/0xe0 [ 81.545953][ T5072] snd_seq_queue_delete+0x8f/0xf0 [ 81.550998][ T5072] snd_seq_oss_release+0x1d3/0x310 [ 81.556117][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.560996][ T5072] ? __pfx_snd_seq_oss_release+0x10/0x10 [ 81.566645][ T5072] ? __asan_memset+0x23/0x50 [ 81.571254][ T5072] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 81.577588][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.582443][ T5072] ? evm_file_release+0x140/0x1d0 [ 81.587479][ T5072] ? __pfx_odev_release+0x10/0x10 [ 81.592521][ T5072] odev_release+0x56/0x80 [ 81.596864][ T5072] __fput+0x42b/0x8a0 [ 81.600859][ T5072] task_work_run+0x251/0x310 [ 81.605465][ T5072] ? __pfx_task_work_run+0x10/0x10 [ 81.610593][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.615474][ T5072] ? switch_task_namespaces+0xe1/0x110 [ 81.620938][ T5072] do_exit+0xa1b/0x27e0 [ 81.625109][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.629975][ T5072] ? __pfx_do_exit+0x10/0x10 [ 81.634679][ T5072] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 81.640087][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.644957][ T5072] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 81.651393][ T5072] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 81.657843][ T5072] ? _raw_spin_lock_irq+0xdf/0x120 [ 81.662976][ T5072] do_group_exit+0x207/0x2c0 [ 81.667582][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 81.672797][ T5072] ? srso_return_thunk+0x5/0x5f [ 81.677652][ T5072] ? lockdep_hardirqs_on+0x99/0x150 [ 81.682863][ T5072] get_signal+0x176e/0x1850 [ 81.687395][ T5072] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 81.693735][ T5072] ? __pfx_get_signal+0x10/0x10 [ 81.698797][ T5072] arch_do_signal_or_restart+0x96/0x860 [ 81.704382][ T5072] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 81.710551][ T5072] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 81.716545][ T5072] ? syscall_exit_to_user_mode+0xa3/0x360 [ 81.722283][ T5072] syscall_exit_to_user_mode+0xc9/0x360 [ 81.727865][ T5072] do_syscall_64+0x10a/0x240 [ 81.732473][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 81.738374][ T5072] RIP: 0033:0x7f457eee3a39 [ 81.742790][ T5072] Code: Unable to access opcode bytes at 0x7f457eee3a0f. [ 81.749808][ T5072] RSP: 002b:00007ffc29336e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.758228][ T5072] RAX: 0000000000019003 RBX: 0000000000000000 RCX: 00007f457eee3a39 [ 81.766200][ T5072] RDX: 00000000fffffdad RSI: 0000000020000040 RDI: 0000000000000004 [ 81.774171][ T5072] RBP: 00007f457ef565f0 R08: 0000000000000006 R09: 0000000000000006 [pid 5072] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5072, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2 /* 0.02 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached , child_tidptr=0x555589db6650) = 5073 [pid 5073] set_robust_list(0x555589db6660, 24) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5073] openat(AT_FDCWD, "/dev/dsp", O_WRONLY|O_APPEND) = 4 [ 81.782231][ T5072] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 81.790205][ T5072] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 81.798194][ T5072] [ 86.397841][ T44] cfg80211: failed to load regulatory.db [pid 5073] write(4, "\xe1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4294966701 [pid 5071] kill(-5073, SIGKILL) = 0 [pid 5073] <... write resumed>) = ? [pid 5071] kill(5073, SIGKILL [pid 5073] +++ killed by SIGKILL +++ <... kill resumed>) = 0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5073, 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 5075 attached [pid 5075] set_robust_list(0x555589db6660, 24 [pid 5071] <... clone resumed>, child_tidptr=0x555589db6650) = 5075 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5075] setpgid(0, 0) = 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1000", 4) = 4 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/dev/sequencer", O_WRONLY|O_SYNC|O_LARGEFILE) = 3 [pid 5075] openat(AT_FDCWD, "/dev/dsp", O_WRONLY|O_APPEND) = 4