[ 24.017093][ C0] clocksource: Watchdog remote CPU 2 read timed out [ 24.017149][ C0] [ 24.017151][ C0] ======================================================== [ 24.017152][ C0] WARNING: possible irq lock inversion dependency detected [ 24.017155][ C0] 7.2.0-virtme #1 Tainted: G W [ 24.017156][ C0] -------------------------------------------------------- [ 24.017157][ C0] systemd-udevd/81 just changed the state of lock: [ 24.017158][ C0] ffffffff88e9d760 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 24.017171][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 24.017172][ C0] (fs_reclaim){+.+.}-{0:0} [ 24.017174][ C0] [ 24.017174][ C0] [ 24.017174][ C0] and interrupts could create inverse lock ordering between them. [ 24.017174][ C0] [ 24.017175][ C0] [ 24.017175][ C0] other info that might help us debug this: [ 24.017175][ C0] Possible interrupt unsafe locking scenario: [ 24.017175][ C0] [ 24.017176][ C0] CPU0 CPU1 [ 24.017176][ C0] ---- ---- [ 24.017177][ C0] lock(fs_reclaim); [ 24.017178][ C0] local_irq_disable(); [ 24.017178][ C0] lock(console_owner); [ 24.017179][ C0] lock(fs_reclaim); [ 24.017180][ C0] [ 24.017180][ C0] lock(console_owner); [ 24.017181][ C0] [ 24.017181][ C0] *** DEADLOCK *** [ 24.017181][ C0] [ 24.017182][ C0] locks held by systemd-udevd/81: 6, last CPU#0: [ 24.017183][ C0] #0: ffffffff891c5fb8 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x84/0x240 [ 24.017189][ C0] #1: ffffffff88f94c00 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x17e/0x1ea0 [ 24.017194][ C0] #2: ffa0000000007c90 ((&watchdog_timer)){+.-.}-{0:0}, at: call_timer_fn+0x110/0x4d0 [ 24.017199][ C0] #3: ffffffff88fe29f8 (watchdog_lock){+.-.}-{3:3}, at: clocksource_watchdog+0x15/0x30 [ 24.017202][ C0] #4: ffffffff88f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 24.017206][ C0] #5: ffffffff88f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 24.017209][ C0] [ 24.017209][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 24.017213][ C0] -> (fs_reclaim){+.+.}-{0:0} { [ 24.017216][ C0] HARDIRQ-ON-W at: [ 24.017217][ C0] __lock_acquire+0x388/0xc20 [ 24.017221][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017223][ C0] fs_reclaim_acquire+0xd5/0x120 [ 24.017226][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 24.017228][ C0] kthread_create_worker_on_node+0xea/0x210 [ 24.017230][ C0] workqueue_init+0x2a/0x680 [ 24.017235][ C0] kernel_init_freeable+0x2fe/0x630 [ 24.017238][ C0] kernel_init+0x21/0x150 [ 24.017241][ C0] ret_from_fork+0x474/0x6b0 [ 24.017245][ C0] ret_from_fork_asm+0x11/0x20 [ 24.017248][ C0] SOFTIRQ-ON-W at: [ 24.017249][ C0] __lock_acquire+0x388/0xc20 [ 24.017250][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017252][ C0] fs_reclaim_acquire+0xd5/0x120 [ 24.017253][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 24.017254][ C0] kthread_create_worker_on_node+0xea/0x210 [ 24.017256][ C0] workqueue_init+0x2a/0x680 [ 24.017257][ C0] kernel_init_freeable+0x2fe/0x630 [ 24.017259][ C0] kernel_init+0x21/0x150 [ 24.017260][ C0] ret_from_fork+0x474/0x6b0 [ 24.017261][ C0] ret_from_fork_asm+0x11/0x20 [ 24.017263][ C0] INITIAL USE at: [ 24.017264][ C0] __lock_acquire+0x388/0xc20 [ 24.017265][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017267][ C0] fs_reclaim_acquire+0xd5/0x120 [ 24.017268][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 24.017269][ C0] kthread_create_worker_on_node+0xea/0x210 [ 24.017271][ C0] workqueue_init+0x2a/0x680 [ 24.017272][ C0] kernel_init_freeable+0x2fe/0x630 [ 24.017274][ C0] kernel_init+0x21/0x150 [ 24.017275][ C0] ret_from_fork+0x474/0x6b0 [ 24.017276][ C0] ret_from_fork_asm+0x11/0x20 [ 24.017278][ C0] } [ 24.017278][ C0] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 24.017282][ C0] ... acquired at: [ 24.017283][ C0] __lock_acquire+0x518/0xc20 [ 24.017284][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017286][ C0] fs_reclaim_acquire+0xd5/0x120 [ 24.017287][ C0] __kmalloc_noprof+0xd3/0x760 [ 24.017288][ C0] alloc_buf.isra.0+0x4b/0x260 [ 24.017292][ C0] put_chars+0x1e1/0x2f0 [ 24.017293][ C0] hvc_console_print+0x292/0x780 [ 24.017296][ C0] console_emit_next_record+0x22f/0x4c0 [ 24.017298][ C0] console_flush_one_record+0x46f/0x710 [ 24.017299][ C0] console_unlock+0xee/0x1f0 [ 24.017301][ C0] vprintk_emit+0x37c/0x3e0 [ 24.017302][ C0] _printk+0xc7/0x100 [ 24.017306][ C0] tun_init+0x24/0xb0 [ 24.017309][ C0] do_one_initcall+0x124/0x4f0 [ 24.017311][ C0] kernel_init_freeable+0x596/0x630 [ 24.017314][ C0] kernel_init+0x21/0x150 [ 24.017315][ C0] ret_from_fork+0x474/0x6b0 [ 24.017317][ C0] ret_from_fork_asm+0x11/0x20 [ 24.017318][ C0] [ 24.017318][ C0] -> (console_owner){..-.}-{0:0} { [ 24.017320][ C0] IN-SOFTIRQ-W at: [ 24.017321][ C0] __lock_acquire+0x388/0xc20 [ 24.017323][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017324][ C0] console_lock_spinning_enable+0x5c/0x60 [ 24.017326][ C0] console_emit_next_record+0x1d1/0x4c0 [ 24.017327][ C0] console_flush_one_record+0x46f/0x710 [ 24.017329][ C0] console_unlock+0xee/0x1f0 [ 24.017331][ C0] vprintk_emit+0x37c/0x3e0 [ 24.017332][ C0] _printk+0xc7/0x100 [ 24.017333][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 24.017335][ C0] call_timer_fn+0x160/0x4d0 [ 24.017337][ C0] __run_timers+0x68f/0xaa0 [ 24.017339][ C0] run_timer_softirq+0xf0/0x160 [ 24.017340][ C0] handle_softirqs+0x1d3/0x900 [ 24.017343][ C0] __irq_exit_rcu+0x145/0x1c0 [ 24.017344][ C0] irq_exit_rcu+0xe/0x30 [ 24.017345][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 24.017347][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 24.017349][ C0] unwind_next_frame+0x252/0x1ea0 [ 24.017350][ C0] arch_stack_walk+0xd7/0x130 [ 24.017352][ C0] stack_trace_save+0x93/0xc0 [ 24.017354][ C0] set_track_prepare+0x62/0x90 [ 24.017356][ C0] free_to_partial_list+0x1c6/0x310 [ 24.017358][ C0] qlist_free_all+0x5c/0x110 [ 24.017359][ C0] kasan_quarantine_reduce+0x196/0x240 [ 24.017361][ C0] __kasan_slab_alloc+0x4b/0x70 [ 24.017362][ C0] kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017363][ C0] do_getname.isra.0+0x32/0x240 [ 24.017366][ C0] vfs_fstatat+0x7f/0x90 [ 24.017367][ C0] __do_sys_newfstatat+0xa0/0xf0 [ 24.017368][ C0] do_syscall_64+0xff/0x530 [ 24.017371][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.017372][ C0] INITIAL USE at: [ 24.017373][ C0] } [ 24.017374][ C0] ... key at: [] console_owner_dep_map+0x0/0x60 [ 24.017376][ C0] ... acquired at: [ 24.017376][ C0] mark_lock+0x1d7/0xa00 [ 24.017378][ C0] mark_usage+0x42/0x170 [ 24.017379][ C0] __lock_acquire+0x388/0xc20 [ 24.017381][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017382][ C0] console_lock_spinning_enable+0x5c/0x60 [ 24.017384][ C0] console_emit_next_record+0x1d1/0x4c0 [ 24.017386][ C0] console_flush_one_record+0x46f/0x710 [ 24.017387][ C0] console_unlock+0xee/0x1f0 [ 24.017389][ C0] vprintk_emit+0x37c/0x3e0 [ 24.017390][ C0] _printk+0xc7/0x100 [ 24.017391][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 24.017392][ C0] call_timer_fn+0x160/0x4d0 [ 24.017394][ C0] __run_timers+0x68f/0xaa0 [ 24.017395][ C0] run_timer_softirq+0xf0/0x160 [ 24.017397][ C0] handle_softirqs+0x1d3/0x900 [ 24.017398][ C0] __irq_exit_rcu+0x145/0x1c0 [ 24.017399][ C0] irq_exit_rcu+0xe/0x30 [ 24.017400][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 24.017402][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 24.017403][ C0] unwind_next_frame+0x252/0x1ea0 [ 24.017404][ C0] arch_stack_walk+0xd7/0x130 [ 24.017405][ C0] stack_trace_save+0x93/0xc0 [ 24.017406][ C0] set_track_prepare+0x62/0x90 [ 24.017407][ C0] free_to_partial_list+0x1c6/0x310 [ 24.017409][ C0] qlist_free_all+0x5c/0x110 [ 24.017410][ C0] kasan_quarantine_reduce+0x196/0x240 [ 24.017412][ C0] __kasan_slab_alloc+0x4b/0x70 [ 24.017413][ C0] kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017414][ C0] do_getname.isra.0+0x32/0x240 [ 24.017415][ C0] vfs_fstatat+0x7f/0x90 [ 24.017416][ C0] __do_sys_newfstatat+0xa0/0xf0 [ 24.017417][ C0] do_syscall_64+0xff/0x530 [ 24.017418][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.017419][ C0] [ 24.017420][ C0] [ 24.017420][ C0] stack backtrace: [ 24.017423][ C0] CPU: 0 UID: 0 PID: 81 Comm: systemd-udevd Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 24.017428][ C0] Tainted: [W]=WARN [ 24.017429][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.017431][ C0] Call Trace: [ 24.017433][ C0] [ 24.017434][ C0] dump_stack_lvl+0x6f/0xa0 [ 24.017439][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 24.017441][ C0] mark_lock_irq+0x989/0x9c0 [ 24.017443][ C0] ? add_lock_to_list+0x2c/0x1a0 [ 24.017446][ C0] mark_lock+0x1d7/0xa00 [ 24.017448][ C0] mark_usage+0x42/0x170 [ 24.017450][ C0] __lock_acquire+0x388/0xc20 [ 24.017452][ C0] lock_acquire.part.0+0xd4/0x280 [ 24.017454][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 24.017456][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017458][ C0] ? lock_acquire+0x13c/0x160 [ 24.017460][ C0] console_lock_spinning_enable+0x5c/0x60 [ 24.017462][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 24.017463][ C0] console_emit_next_record+0x1d1/0x4c0 [ 24.017466][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 24.017467][ C0] ? console_flush_one_record+0x106/0x710 [ 24.017469][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017471][ C0] ? lock_acquire+0x13c/0x160 [ 24.017473][ C0] console_flush_one_record+0x46f/0x710 [ 24.017475][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 24.017477][ C0] ? __lock_acquire+0x518/0xc20 [ 24.017479][ C0] console_unlock+0xee/0x1f0 [ 24.017481][ C0] ? console_flush_one_record+0x710/0x710 [ 24.017483][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017484][ C0] ? lock_acquire+0xe0/0x160 [ 24.017486][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 24.017488][ C0] ? vprintk_emit+0x320/0x3e0 [ 24.017489][ C0] vprintk_emit+0x37c/0x3e0 [ 24.017491][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 24.017493][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 24.017495][ C0] _printk+0xc7/0x100 [ 24.017496][ C0] ? snapshot_read.cold+0x21/0x21 [ 24.017498][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 24.017500][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017502][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 24.017504][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017506][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017507][ C0] call_timer_fn+0x160/0x4d0 [ 24.017509][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 24.017511][ C0] ? debug_object_active_state+0x430/0x430 [ 24.017514][ C0] ? find_held_lock+0x2b/0x80 [ 24.017516][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017518][ C0] ? mark_held_locks+0x40/0x70 [ 24.017520][ C0] __run_timers+0x68f/0xaa0 [ 24.017522][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017524][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 24.017526][ C0] ? __lock_acquire+0x518/0xc20 [ 24.017529][ C0] ? __rwlock_init+0x150/0x150 [ 24.017532][ C0] run_timer_softirq+0xf0/0x160 [ 24.017534][ C0] ? __run_timers+0xaa0/0xaa0 [ 24.017536][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017537][ C0] handle_softirqs+0x1d3/0x900 [ 24.017539][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017540][ C0] ? _local_bh_enable+0xc0/0xc0 [ 24.017542][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 24.017544][ C0] __irq_exit_rcu+0x145/0x1c0 [ 24.017546][ C0] irq_exit_rcu+0xe/0x30 [ 24.017547][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 24.017549][ C0] [ 24.017549][ C0] [ 24.017550][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 24.017552][ C0] RIP: 0010:unwind_next_frame+0x252/0x1ea0 [ 24.017554][ C0] Code: 85 ad 08 00 00 41 0f b6 45 41 3c 01 0f 87 36 b2 ab ff 48 b9 00 00 00 00 00 fc ff df 4c 89 e6 83 e0 01 48 c1 ee 03 80 3c 0e 00 <0f> 85 8e 16 00 00 49 8b 7d 58 3c 01 48 83 df 00 0f 84 21 05 00 00 [ 24.017556][ C0] RSP: 0018:ffa0000000527950 EFLAGS: 00000246 [ 24.017559][ C0] RAX: 0000000000000000 RBX: 1ff40000000a4f33 RCX: dffffc0000000000 [ 24.017560][ C0] RDX: ffa0000000527a91 RSI: 1ff40000000a4f55 RDI: ffffffff885c4980 [ 24.017561][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: ff1100000af22ef8 [ 24.017562][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffa0000000527aa8 [ 24.017562][ C0] R13: ffa0000000527a50 R14: ff1100000af223c0 R15: ff11000001169a80 [ 24.017565][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017566][ C0] ? stack_access_ok+0x1e0/0x1e0 [ 24.017568][ C0] ? __unwind_start+0x42e/0x900 [ 24.017570][ C0] ? write_profile+0xf0/0xf0 [ 24.017572][ C0] arch_stack_walk+0xd7/0x130 [ 24.017573][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017575][ C0] stack_trace_save+0x93/0xc0 [ 24.017577][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 24.017579][ C0] set_track_prepare+0x62/0x90 [ 24.017580][ C0] ? kasan_quarantine_reduce+0x196/0x240 [ 24.017582][ C0] ? __kasan_slab_alloc+0x4b/0x70 [ 24.017583][ C0] ? kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017584][ C0] ? do_getname.isra.0+0x32/0x240 [ 24.017586][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017587][ C0] free_to_partial_list+0x1c6/0x310 [ 24.017590][ C0] ? qlist_free_all+0x57/0x110 [ 24.017593][ C0] qlist_free_all+0x5c/0x110 [ 24.017596][ C0] kasan_quarantine_reduce+0x196/0x240 [ 24.017599][ C0] __kasan_slab_alloc+0x4b/0x70 [ 24.017601][ C0] kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017602][ C0] ? do_getname.isra.0+0x32/0x240 [ 24.017605][ C0] do_getname.isra.0+0x32/0x240 [ 24.017607][ C0] vfs_fstatat+0x7f/0x90 [ 24.017608][ C0] __do_sys_newfstatat+0xa0/0xf0 [ 24.017610][ C0] ? vfs_fstatat+0x90/0x90 [ 24.017612][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 24.017614][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017615][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 24.017619][ C0] do_syscall_64+0xff/0x530 [ 24.017620][ C0] ? irq_exit_rcu+0x1a/0x30 [ 24.017622][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.017623][ C0] RIP: 0033:0x7f5cde79812e [ 24.017626][ C0] Code: 0f 1f 40 00 48 8b 15 c9 9c 10 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b 15 91 [ 24.017627][ C0] RSP: 002b:00007fff5863d2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 24.017629][ C0] RAX: ffffffffffffffda RBX: 00007fff5863d2d8 RCX: 00007f5cde79812e [ 24.017630][ C0] RDX: 00007fff5863d2f0 RSI: 0000562859ff6770 RDI: 00000000ffffff9c [ 24.017631][ C0] RBP: 00007fff5863d450 R08: 00007f5cde8a2ac8 R09: 0000000000001010 [ 24.017632][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff5863d4a0 [ 24.017632][ C0] R13: 00007fff5863d498 R14: 0000562859fda0e0 R15: 0000000000000000 [ 24.017635][ C0] [ 24.017639][ C0] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 24.017641][ C0] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 81, name: systemd-udevd [ 24.017642][ C0] preempt_count: 102, expected: 0 [ 24.017643][ C0] RCU nest depth: 1, expected: 0 [ 24.017643][ C0] INFO: lockdep is turned off. [ 24.017644][ C0] irq event stamp: 1934939 [ 24.017645][ C0] hardirqs last enabled at (1934938): [] __down_trylock_console_sem+0x86/0xa0 [ 24.017647][ C0] hardirqs last disabled at (1934939): [] console_emit_next_record+0x3d4/0x4c0 [ 24.017649][ C0] softirqs last enabled at (1934484): [] handle_softirqs+0x67c/0x900 [ 24.017651][ C0] softirqs last disabled at (1934925): [] __irq_exit_rcu+0x145/0x1c0 [ 24.017652][ C0] Preemption disabled at: [ 24.017653][ C0] [] handle_softirqs+0xf6/0x900 [ 24.017656][ C0] CPU: 0 UID: 0 PID: 81 Comm: systemd-udevd Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 24.017658][ C0] Tainted: [W]=WARN [ 24.017658][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.017659][ C0] Call Trace: [ 24.017660][ C0] [ 24.017660][ C0] dump_stack_lvl+0x6f/0xa0 [ 24.017663][ C0] ? handle_softirqs+0xf6/0x900 [ 24.017664][ C0] __might_resched.cold+0x1fe/0x2c1 [ 24.017667][ C0] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 24.017670][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017672][ C0] __kmalloc_noprof+0x443/0x760 [ 24.017673][ C0] ? __rwlock_init+0x150/0x150 [ 24.017675][ C0] ? alloc_buf.isra.0+0x4b/0x260 [ 24.017677][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 24.017679][ C0] alloc_buf.isra.0+0x4b/0x260 [ 24.017682][ C0] put_chars+0x1e1/0x2f0 [ 24.017683][ C0] ? __send_to_port+0x420/0x420 [ 24.017685][ C0] ? mark_lock+0x1d7/0xa00 [ 24.017687][ C0] hvc_console_print+0x292/0x780 [ 24.017691][ C0] ? hvc_write+0x3a0/0x3a0 [ 24.017693][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017694][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017696][ C0] console_emit_next_record+0x22f/0x4c0 [ 24.017698][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 24.017700][ C0] ? console_flush_one_record+0x106/0x710 [ 24.017702][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017703][ C0] ? lock_acquire+0x13c/0x160 [ 24.017705][ C0] console_flush_one_record+0x46f/0x710 [ 24.017707][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 24.017709][ C0] ? __lock_acquire+0x518/0xc20 [ 24.017711][ C0] console_unlock+0xee/0x1f0 [ 24.017713][ C0] ? console_flush_one_record+0x710/0x710 [ 24.017715][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017716][ C0] ? lock_acquire+0xe0/0x160 [ 24.017718][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 24.017720][ C0] ? vprintk_emit+0x320/0x3e0 [ 24.017721][ C0] vprintk_emit+0x37c/0x3e0 [ 24.017722][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 24.017724][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 24.017726][ C0] _printk+0xc7/0x100 [ 24.017728][ C0] ? snapshot_read.cold+0x21/0x21 [ 24.017729][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 24.017731][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017734][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 24.017735][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017737][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017738][ C0] call_timer_fn+0x160/0x4d0 [ 24.017740][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 24.017742][ C0] ? debug_object_active_state+0x430/0x430 [ 24.017744][ C0] ? find_held_lock+0x2b/0x80 [ 24.017745][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017747][ C0] ? mark_held_locks+0x40/0x70 [ 24.017749][ C0] __run_timers+0x68f/0xaa0 [ 24.017751][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 24.017753][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 24.017755][ C0] ? __lock_acquire+0x518/0xc20 [ 24.017758][ C0] ? __rwlock_init+0x150/0x150 [ 24.017760][ C0] run_timer_softirq+0xf0/0x160 [ 24.017762][ C0] ? __run_timers+0xaa0/0xaa0 [ 24.017764][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017765][ C0] handle_softirqs+0x1d3/0x900 [ 24.017767][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 24.017769][ C0] ? _local_bh_enable+0xc0/0xc0 [ 24.017770][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 24.017773][ C0] __irq_exit_rcu+0x145/0x1c0 [ 24.017774][ C0] irq_exit_rcu+0xe/0x30 [ 24.017776][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 24.017777][ C0] [ 24.017778][ C0] [ 24.017778][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 24.017780][ C0] RIP: 0010:unwind_next_frame+0x252/0x1ea0 [ 24.017782][ C0] Code: 85 ad 08 00 00 41 0f b6 45 41 3c 01 0f 87 36 b2 ab ff 48 b9 00 00 00 00 00 fc ff df 4c 89 e6 83 e0 01 48 c1 ee 03 80 3c 0e 00 <0f> 85 8e 16 00 00 49 8b 7d 58 3c 01 48 83 df 00 0f 84 21 05 00 00 [ 24.017783][ C0] RSP: 0018:ffa0000000527950 EFLAGS: 00000246 [ 24.017784][ C0] RAX: 0000000000000000 RBX: 1ff40000000a4f33 RCX: dffffc0000000000 [ 24.017785][ C0] RDX: ffa0000000527a91 RSI: 1ff40000000a4f55 RDI: ffffffff885c4980 [ 24.017785][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: ff1100000af22ef8 [ 24.017786][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffa0000000527aa8 [ 24.017787][ C0] R13: ffa0000000527a50 R14: ff1100000af223c0 R15: ff11000001169a80 [ 24.017789][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017791][ C0] ? stack_access_ok+0x1e0/0x1e0 [ 24.017793][ C0] ? __unwind_start+0x42e/0x900 [ 24.017794][ C0] ? write_profile+0xf0/0xf0 [ 24.017796][ C0] arch_stack_walk+0xd7/0x130 [ 24.017798][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017799][ C0] stack_trace_save+0x93/0xc0 [ 24.017801][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 24.017803][ C0] set_track_prepare+0x62/0x90 [ 24.017804][ C0] ? kasan_quarantine_reduce+0x196/0x240 [ 24.017806][ C0] ? __kasan_slab_alloc+0x4b/0x70 [ 24.017807][ C0] ? kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017808][ C0] ? do_getname.isra.0+0x32/0x240 [ 24.017809][ C0] ? vfs_fstatat+0x7f/0x90 [ 24.017811][ C0] free_to_partial_list+0x1c6/0x310 [ 24.017813][ C0] ? qlist_free_all+0x57/0x110 [ 24.017815][ C0] qlist_free_all+0x5c/0x110 [ 24.017817][ C0] kasan_quarantine_reduce+0x196/0x240 [ 24.017819][ C0] __kasan_slab_alloc+0x4b/0x70 [ 24.017820][ C0] kmem_cache_alloc_noprof+0x21f/0x5c0 [ 24.017821][ C0] ? do_getname.isra.0+0x32/0x240 [ 24.017824][ C0] do_getname.isra.0+0x32/0x240 [ 24.017825][ C0] vfs_fstatat+0x7f/0x90 [ 24.017827][ C0] __do_sys_newfstatat+0xa0/0xf0 [ 24.017828][ C0] ? vfs_fstatat+0x90/0x90 [ 24.017831][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 24.017833][ C0] ? rcu_is_watching+0x16/0xd0 [ 24.017834][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 24.017836][ C0] do_syscall_64+0xff/0x530 [ 24.017838][ C0] ? irq_exit_rcu+0x1a/0x30 [ 24.017839][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.017840][ C0] RIP: 0033:0x7f5cde79812e [ 24.017841][ C0] Code: 0f 1f 40 00 48 8b 15 c9 9c 10 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b 15 91 [ 24.017842][ C0] RSP: 002b:00007fff5863d2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 24.017843][ C0] RAX: ffffffffffffffda RBX: 00007fff5863d2d8 RCX: 00007f5cde79812e [ 24.017844][ C0] RDX: 00007fff5863d2f0 RSI: 0000562859ff6770 RDI: 00000000ffffff9c [ 24.017845][ C0] RBP: 00007fff5863d450 R08: 00007f5cde8a2ac8 R09: 0000000000001010 [ 24.017846][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff5863d4a0 [ 24.017846][ C0] R13: 00007fff5863d498 R14: 0000562859fda0e0 R15: 0000000000000000 [ 24.017849][ C0]