./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2924547774 <...> forked to background, child pid 3184 no interfaces have a carrier [ 21.097795][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.106979][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. execve("./syz-executor2924547774", ["./syz-executor2924547774"], 0x7ffc8db6be70 /* 10 vars */) = 0 brk(NULL) = 0x555555a7c000 brk(0x555555a7cc40) = 0x555555a7cc40 arch_prctl(ARCH_SET_FS, 0x555555a7c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2924547774", 4096) = 28 brk(0x555555a9dc40) = 0x555555a9dc40 brk(0x555555a9e000) = 0x555555a9e000 mprotect(0x7f60d3f59000, 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 openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 3 ioctl(3, SNDRV_TIMER_IOCTL_TREAD_OLD, 0x20000040) = 0 ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000080) = 0 ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440) = 0 ioctl(3, FIOASYNC, [-256]) = 0 ioctl(3, SNDRV_TIMER_IOCTL_START, 0) = 0 open(".", O_RDONLY) = 4 fcntl(4, F_SETOWN, -1) = 0 fcntl(4, F_NOTIFY, DN_ACCESS|DN_CREATE|DN_ATTRIB) = 0 creat("./file0", 000) = 5 openat(AT_FDCWD, "/dev/dsp", O_WRONLY|O_EXCL|O_DSYNC|O_NOATIME) = 6 write(6, "\x7f\x45\x4c\x46\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1368) = 1368 exit_group(0) = ? syzkaller login: [ 42.344691][ C1] [ 42.347129][ C1] ======================================================== [ 42.354314][ C1] WARNING: possible irq lock inversion dependency detected [ 42.361495][ C1] 5.19.0-rc3-syzkaller-00279-g8c23f235a6a8 #0 Not tainted [ 42.368574][ C1] -------------------------------------------------------- [ 42.375748][ C1] swapper/1/0 just changed the state of lock: [ 42.381803][ C1] ffff8880252a0110 (&group->lock){..-.}-{2:2}, at: _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 42.391718][ C1] but this lock took another, SOFTIRQ-READ-unsafe lock in the past: [ 42.399667][ C1] (tasklist_lock){.+.+}-{2:2} [ 42.399683][ C1] [ 42.399683][ C1] [ 42.399683][ C1] and interrupts could create inverse lock ordering between them. [ 42.399683][ C1] [ 42.419192][ C1] [ 42.419192][ C1] other info that might help us debug this: [ 42.427229][ C1] Chain exists of: [ 42.427229][ C1] &group->lock --> &timer->lock --> tasklist_lock [ 42.427229][ C1] [ 42.439564][ C1] Possible interrupt unsafe locking scenario: [ 42.439564][ C1] [ 42.447858][ C1] CPU0 CPU1 [ 42.453214][ C1] ---- ---- [ 42.458655][ C1] lock(tasklist_lock); [ 42.463065][ C1] local_irq_disable(); [ 42.471527][ C1] lock(&group->lock); [ 42.478189][ C1] lock(&timer->lock); [ 42.484838][ C1] [ 42.488286][ C1] lock(&group->lock); [ 42.492595][ C1] [ 42.492595][ C1] *** DEADLOCK *** [ 42.492595][ C1] [ 42.502799][ C1] no locks held by swapper/1/0. [ 42.507620][ C1] [ 42.507620][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 42.516970][ C1] -> (tasklist_lock){.+.+}-{2:2} { [ 42.522429][ C1] HARDIRQ-ON-R at: [ 42.526732][ C1] lock_acquire+0x1ab/0x570 [ 42.533573][ C1] _raw_read_lock+0x5b/0x70 [ 42.540408][ C1] do_wait+0x284/0xce0 [ 42.546820][ C1] kernel_wait+0x9c/0x150 [ 42.553477][ C1] call_usermodehelper_exec_work+0xf5/0x180 [ 42.561699][ C1] process_one_work+0x996/0x1610 [ 42.568963][ C1] worker_thread+0x665/0x1080 [ 42.575962][ C1] kthread+0x2e9/0x3a0 [ 42.582375][ C1] ret_from_fork+0x1f/0x30 [ 42.589119][ C1] SOFTIRQ-ON-R at: [ 42.593432][ C1] lock_acquire+0x1ab/0x570 [ 42.600273][ C1] _raw_read_lock+0x5b/0x70 [ 42.607101][ C1] do_wait+0x284/0xce0 [ 42.613505][ C1] kernel_wait+0x9c/0x150 [ 42.620164][ C1] call_usermodehelper_exec_work+0xf5/0x180 [ 42.628397][ C1] process_one_work+0x996/0x1610 [ 42.635661][ C1] worker_thread+0x665/0x1080 [ 42.642664][ C1] kthread+0x2e9/0x3a0 [ 42.649057][ C1] ret_from_fork+0x1f/0x30 [ 42.655801][ C1] INITIAL USE at: [ 42.660018][ C1] lock_acquire+0x1ab/0x570 [ 42.666763][ C1] _raw_write_lock_irq+0x32/0x50 [ 42.673954][ C1] copy_process+0x445e/0x7020 [ 42.680874][ C1] kernel_clone+0xe7/0xab0 [ 42.687531][ C1] user_mode_thread+0xad/0xe0 [ 42.694638][ C1] rest_init+0x23/0x270 [ 42.701045][ C1] arch_call_rest_init+0xf/0x14 [ 42.708146][ C1] start_kernel+0x46e/0x48f [ 42.714885][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 42.723018][ C1] INITIAL READ USE at: [ 42.727673][ C1] lock_acquire+0x1ab/0x570 [ 42.734850][ C1] _raw_read_lock+0x5b/0x70 [ 42.742037][ C1] do_wait+0x284/0xce0 [ 42.748794][ C1] kernel_wait+0x9c/0x150 [ 42.755812][ C1] call_usermodehelper_exec_work+0xf5/0x180 [ 42.764379][ C1] process_one_work+0x996/0x1610 [ 42.771991][ C1] worker_thread+0x665/0x1080 [ 42.779358][ C1] kthread+0x2e9/0x3a0 [ 42.786102][ C1] ret_from_fork+0x1f/0x30 [ 42.793221][ C1] } [ 42.796051][ C1] ... key at: [] tasklist_lock+0x18/0x40 [ 42.804110][ C1] ... acquired at: [ 42.808240][ C1] _raw_read_lock+0x5b/0x70 [ 42.812989][ C1] send_sigio+0xab/0x380 [ 42.817387][ C1] dnotify_handle_event+0x148/0x280 [ 42.822737][ C1] fsnotify_handle_inode_event.isra.0+0x22e/0x370 [ 42.829304][ C1] fsnotify+0xec5/0x13a0 [ 42.833699][ C1] path_openat+0x1232/0x2910 [ 42.838446][ C1] do_filp_open+0x1aa/0x400 [ 42.843365][ C1] do_sys_openat2+0x16d/0x4c0 [ 42.848196][ C1] __x64_sys_creat+0xc9/0x120 [ 42.853052][ C1] do_syscall_64+0x35/0xb0 [ 42.857626][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 42.863670][ C1] [ 42.865973][ C1] -> (&f->f_owner.lock){....}-{2:2} { [ 42.871597][ C1] INITIAL USE at: [ 42.875728][ C1] lock_acquire+0x1ab/0x570 [ 42.882301][ C1] _raw_write_lock_irq+0x32/0x50 [ 42.889307][ C1] f_modown+0x2a/0x390 [ 42.895440][ C1] f_setown+0xd7/0x230 [ 42.901574][ C1] do_fcntl+0x6f1/0x1040 [ 42.907901][ C1] __x64_sys_fcntl+0x15f/0x1d0 [ 42.914728][ C1] do_syscall_64+0x35/0xb0 [ 42.921213][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 42.929190][ C1] INITIAL READ USE at: [ 42.933762][ C1] lock_acquire+0x1ab/0x570 [ 42.940959][ C1] _raw_read_lock_irqsave+0x70/0x90 [ 42.948749][ C1] send_sigio+0x24/0x380 [ 42.955502][ C1] kill_fasync+0x1f8/0x470 [ 42.963310][ C1] snd_timer_user_ccallback+0x298/0x330 [ 42.971536][ C1] snd_timer_notify1+0x11c/0x3b0 [ 42.979088][ C1] snd_timer_start1+0x4d4/0x800 [ 42.986438][ C1] snd_timer_user_start.isra.0+0x1e3/0x260 [ 42.994746][ C1] __snd_timer_user_ioctl.isra.0+0xda4/0x2490 [ 43.003314][ C1] snd_timer_user_ioctl+0x77/0xb0 [ 43.010857][ C1] __x64_sys_ioctl+0x193/0x200 [ 43.018136][ C1] do_syscall_64+0x35/0xb0 [ 43.025061][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.033549][ C1] } [ 43.036285][ C1] ... key at: [] __key.5+0x0/0x40 [ 43.043829][ C1] ... acquired at: [ 43.047985][ C1] _raw_read_lock_irqsave+0x70/0x90 [ 43.054134][ C1] send_sigio+0x24/0x380 [ 43.058544][ C1] kill_fasync+0x1f8/0x470 [ 43.063113][ C1] snd_timer_user_ccallback+0x298/0x330 [ 43.068823][ C1] snd_timer_notify1+0x11c/0x3b0 [ 43.073925][ C1] snd_timer_start1+0x4d4/0x800 [ 43.078927][ C1] snd_timer_user_start.isra.0+0x1e3/0x260 [ 43.084900][ C1] __snd_timer_user_ioctl.isra.0+0xda4/0x2490 [ 43.091126][ C1] snd_timer_user_ioctl+0x77/0xb0 [ 43.096307][ C1] __x64_sys_ioctl+0x193/0x200 [ 43.101226][ C1] do_syscall_64+0x35/0xb0 [ 43.105800][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.111854][ C1] [ 43.114156][ C1] -> (&new->fa_lock){....}-{2:2} { [ 43.119447][ C1] INITIAL READ USE at: [ 43.123944][ C1] lock_acquire+0x1ab/0x570 [ 43.130798][ C1] _raw_read_lock_irqsave+0x70/0x90 [ 43.138329][ C1] kill_fasync+0x136/0x470 [ 43.145109][ C1] snd_timer_user_ccallback+0x298/0x330 [ 43.152991][ C1] snd_timer_notify1+0x11c/0x3b0 [ 43.160270][ C1] snd_timer_start1+0x4d4/0x800 [ 43.167448][ C1] snd_timer_user_start.isra.0+0x1e3/0x260 [ 43.175605][ C1] __snd_timer_user_ioctl.isra.0+0xda4/0x2490 [ 43.184013][ C1] snd_timer_user_ioctl+0x77/0xb0 [ 43.191385][ C1] __x64_sys_ioctl+0x193/0x200 [ 43.198480][ C1] do_syscall_64+0x35/0xb0 [ 43.205235][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.213455][ C1] } [ 43.216104][ C1] ... key at: [] __key.0+0x0/0x40 [ 43.223384][ C1] ... acquired at: [ 43.227450][ C1] _raw_read_lock_irqsave+0x70/0x90 [ 43.232996][ C1] kill_fasync+0x136/0x470 [ 43.237574][ C1] snd_timer_user_ccallback+0x298/0x330 [ 43.243273][ C1] snd_timer_notify1+0x11c/0x3b0 [ 43.248371][ C1] snd_timer_start1+0x4d4/0x800 [ 43.253378][ C1] snd_timer_user_start.isra.0+0x1e3/0x260 [ 43.259338][ C1] __snd_timer_user_ioctl.isra.0+0xda4/0x2490 [ 43.265564][ C1] snd_timer_user_ioctl+0x77/0xb0 [ 43.270784][ C1] __x64_sys_ioctl+0x193/0x200 [ 43.275808][ C1] do_syscall_64+0x35/0xb0 [ 43.280377][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.286507][ C1] [ 43.288818][ C1] -> (&timer->lock){....}-{2:2} { [ 43.293918][ C1] INITIAL USE at: [ 43.297873][ C1] lock_acquire+0x1ab/0x570 [ 43.304098][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 43.311970][ C1] snd_timer_resolution+0x55/0x100 [ 43.318798][ C1] snd_timer_user_params.isra.0+0x18e/0x8c0 [ 43.326409][ C1] __snd_timer_user_ioctl.isra.0+0x101c/0x2490 [ 43.334545][ C1] snd_timer_user_ioctl+0x77/0xb0 [ 43.341649][ C1] __x64_sys_ioctl+0x193/0x200 [ 43.348131][ C1] do_syscall_64+0x35/0xb0 [ 43.354276][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.361889][ C1] } [ 43.364448][ C1] ... key at: [] __key.10+0x0/0x40 [ 43.371715][ C1] ... acquired at: [ 43.375585][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 43.381041][ C1] snd_timer_notify+0x10c/0x3d0 [ 43.386051][ C1] snd_pcm_post_start+0x24a/0x310 [ 43.391228][ C1] snd_pcm_action_single+0xf4/0x130 [ 43.396579][ C1] snd_pcm_action+0x6e/0x90 [ 43.401234][ C1] __snd_pcm_lib_xfer+0x14d0/0x1e10 [ 43.406603][ C1] snd_pcm_oss_write3+0x103/0x250 [ 43.411784][ C1] snd_pcm_oss_write2+0x30e/0x3f0 [ 43.416961][ C1] snd_pcm_oss_sync1+0x187/0x440 [ 43.422070][ C1] snd_pcm_oss_sync+0x638/0x800 [ 43.427078][ C1] snd_pcm_oss_release+0x276/0x300 [ 43.432344][ C1] __fput+0x277/0x9d0 [ 43.436478][ C1] task_work_run+0xdd/0x1a0 [ 43.441136][ C1] do_exit+0xaff/0x2a00 [ 43.445460][ C1] do_group_exit+0xd2/0x2f0 [ 43.450114][ C1] __x64_sys_exit_group+0x3a/0x50 [ 43.455313][ C1] do_syscall_64+0x35/0xb0 [ 43.459900][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.465980][ C1] [ 43.468283][ C1] -> (&group->lock){..-.}-{2:2} { [ 43.473295][ C1] IN-SOFTIRQ-W at: [ 43.477269][ C1] lock_acquire+0x1ab/0x570 [ 43.483417][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 43.490260][ C1] _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 43.497607][ C1] snd_pcm_period_elapsed+0x1d/0x50 [ 43.504448][ C1] dummy_hrtimer_callback+0x94/0x1b0 [ 43.511356][ C1] __hrtimer_run_queues+0x609/0xe50 [ 43.518191][ C1] hrtimer_run_softirq+0x17b/0x360 [ 43.524937][ C1] __do_softirq+0x29b/0x9c2 [ 43.531089][ C1] __irq_exit_rcu+0x123/0x180 [ 43.537398][ C1] irq_exit_rcu+0x5/0x20 [ 43.543273][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 43.550536][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 43.558151][ C1] acpi_idle_do_entry+0x1c9/0x240 [ 43.564809][ C1] acpi_idle_enter+0x369/0x510 [ 43.571207][ C1] cpuidle_enter_state+0x1b1/0xc80 [ 43.577949][ C1] cpuidle_enter+0x4a/0xa0 [ 43.583989][ C1] do_idle+0x3e8/0x590 [ 43.589691][ C1] cpu_startup_entry+0x14/0x20 [ 43.596099][ C1] start_secondary+0x21d/0x2b0 [ 43.602492][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 43.610016][ C1] INITIAL USE at: [ 43.613886][ C1] lock_acquire+0x1ab/0x570 [ 43.619946][ C1] _raw_spin_lock_irq+0x32/0x50 [ 43.626346][ C1] snd_pcm_hw_params+0x14b/0x19f0 [ 43.632925][ C1] snd_pcm_kernel_ioctl+0x164/0x310 [ 43.639662][ C1] snd_pcm_oss_change_params_locked+0x14e2/0x3a70 [ 43.647617][ C1] snd_pcm_oss_make_ready_locked+0xb3/0x130 [ 43.655070][ C1] snd_pcm_oss_write+0x4ac/0x9c0 [ 43.661578][ C1] vfs_write+0x269/0xac0 [ 43.667383][ C1] ksys_write+0x127/0x250 [ 43.673255][ C1] do_syscall_64+0x35/0xb0 [ 43.679215][ C1] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 43.686670][ C1] } [ 43.689146][ C1] ... key at: [] __key.8+0x0/0x40 [ 43.696250][ C1] ... acquired at: [ 43.700042][ C1] __lock_acquire+0x11e7/0x5660 [ 43.705049][ C1] lock_acquire+0x1ab/0x570 [ 43.709706][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 43.715054][ C1] _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 43.720941][ C1] snd_pcm_period_elapsed+0x1d/0x50 [ 43.726299][ C1] dummy_hrtimer_callback+0x94/0x1b0 [ 43.731732][ C1] __hrtimer_run_queues+0x609/0xe50 [ 43.737080][ C1] hrtimer_run_softirq+0x17b/0x360 [ 43.742339][ C1] __do_softirq+0x29b/0x9c2 [ 43.746995][ C1] __irq_exit_rcu+0x123/0x180 [ 43.751821][ C1] irq_exit_rcu+0x5/0x20 [ 43.756386][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 43.762172][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 43.768590][ C1] acpi_idle_do_entry+0x1c9/0x240 [ 43.773805][ C1] acpi_idle_enter+0x369/0x510 [ 43.778815][ C1] cpuidle_enter_state+0x1b1/0xc80 [ 43.784083][ C1] cpuidle_enter+0x4a/0xa0 [ 43.788648][ C1] do_idle+0x3e8/0x590 [ 43.792878][ C1] cpu_startup_entry+0x14/0x20 [ 43.797790][ C1] start_secondary+0x21d/0x2b0 [ 43.802790][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 43.808852][ C1] [ 43.811252][ C1] [ 43.811252][ C1] stack backtrace: [ 43.817124][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.19.0-rc3-syzkaller-00279-g8c23f235a6a8 #0 [ 43.826813][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.837461][ C1] Call Trace: [ 43.840724][ C1] [ 43.843555][ C1] dump_stack_lvl+0xcd/0x134 [ 43.848141][ C1] mark_lock.part.0.cold+0x86/0xd8 [ 43.853230][ C1] ? lock_chain_count+0x20/0x20 [ 43.858059][ C1] ? __lock_acquire+0x163e/0x5660 [ 43.863065][ C1] __lock_acquire+0x11e7/0x5660 [ 43.867897][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 43.873860][ C1] ? find_held_lock+0x2d/0x110 [ 43.878604][ C1] lock_acquire+0x1ab/0x570 [ 43.883181][ C1] ? _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 43.889074][ C1] ? lock_release+0x780/0x780 [ 43.893771][ C1] ? find_held_lock+0x2d/0x110 [ 43.898532][ C1] ? __hrtimer_run_queues+0x51a/0xe50 [ 43.903889][ C1] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 43.909253][ C1] ? dummy_pcm_copy_kernel+0x10/0x10 [ 43.914543][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 43.919748][ C1] ? _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 43.925635][ C1] _snd_pcm_stream_lock_irqsave+0x9f/0xd0 [ 43.931342][ C1] snd_pcm_period_elapsed+0x1d/0x50 [ 43.936528][ C1] dummy_hrtimer_callback+0x94/0x1b0 [ 43.941799][ C1] __hrtimer_run_queues+0x609/0xe50 [ 43.946999][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 43.952969][ C1] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 43.959032][ C1] hrtimer_run_softirq+0x17b/0x360 [ 43.964137][ C1] __do_softirq+0x29b/0x9c2 [ 43.968638][ C1] __irq_exit_rcu+0x123/0x180 [ 43.973306][ C1] irq_exit_rcu+0x5/0x20 [ 43.977541][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 43.983178][ C1] [ 43.986092][ C1] [ 43.989019][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 43.995079][ C1] RIP: 0010:acpi_idle_do_entry+0x1c9/0x240 [ 44.000894][ C1] Code: 89 de e8 da 67 00 f8 84 db 75 98 e8 d1 6b 00 f8 e8 fc b9 06 f8 eb 0c e8 c5 6b 00 f8 0f 00 2d be 13 ba 00 e8 b9 6b 00 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 04 68 00 f8 48 85 db [ 44.020522][ C1] RSP: 0018:ffffc90000177d20 EFLAGS: 00000293 [ 44.026586][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.034565][ C1] RDX: ffff888011a19d80 RSI: ffffffff8979fb47 RDI: 0000000000000000 [ 44.042525][ C1] RBP: ffff888140a1c064 R08: 0000000000000001 R09: 0000000000000001 [ 44.051715][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 44.059674][ C1] R13: ffff888140a1c000 R14: ffff888140a1c064 R15: ffff8881467e0004 [ 44.067639][ C1] ? acpi_idle_do_entry+0x1c7/0x240 [ 44.073295][ C1] acpi_idle_enter+0x369/0x510 [ 44.078054][ C1] cpuidle_enter_state+0x1b1/0xc80 [ 44.083237][ C1] cpuidle_enter+0x4a/0xa0 [ 44.087638][ C1] do_idle+0x3e8/0x590 [ 44.091696][ C1] ? arch_cpu_idle_exit+0x30/0x30 [ 44.096707][ C1] ? _raw_spin_unlock_irqrestore+0x41/0x70 +++ exited with 0 +++