[ 46.523357][ C0] clocksource: Watchdog remote CPU 3 read timed out [ 46.523569][ C0] [ 46.523571][ C0] ======================================================== [ 46.523572][ C0] WARNING: possible irq lock inversion dependency detected [ 46.523574][ C0] 7.2.0-virtme #1 Tainted: G W [ 46.523575][ C0] -------------------------------------------------------- [ 46.523576][ C0] systemd-sysctl/427 just changed the state of lock: [ 46.523577][ C0] ffffffff91e9d760 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 46.523590][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.523591][ C0] (fs_reclaim){+.+.}-{0:0} [ 46.523592][ C0] [ 46.523592][ C0] [ 46.523592][ C0] and interrupts could create inverse lock ordering between them. [ 46.523592][ C0] [ 46.523593][ C0] [ 46.523593][ C0] other info that might help us debug this: [ 46.523594][ C0] Possible interrupt unsafe locking scenario: [ 46.523594][ C0] [ 46.523594][ C0] CPU0 CPU1 [ 46.523595][ C0] ---- ---- [ 46.523596][ C0] lock(fs_reclaim); [ 46.523597][ C0] local_irq_disable(); [ 46.523597][ C0] lock(console_owner); [ 46.523598][ C0] lock(fs_reclaim); [ 46.523599][ C0] [ 46.523599][ C0] lock(console_owner); [ 46.523600][ C0] [ 46.523600][ C0] *** DEADLOCK *** [ 46.523600][ C0] [ 46.523600][ C0] locks held by systemd-sysctl/427: 4, last CPU#0: [ 46.523602][ C0] #0: ffa0000000007c90 ((&watchdog_timer)){+.-.}-{0:0}, at: call_timer_fn+0x110/0x4d0 [ 46.523608][ C0] #1: ffffffff91fe29f8 (watchdog_lock){+.-.}-{3:3}, at: clocksource_watchdog+0x15/0x30 [ 46.523612][ C0] #2: ffffffff91f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 46.523615][ C0] #3: ffffffff91f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 46.523618][ C0] [ 46.523618][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 46.523623][ C0] -> (fs_reclaim){+.+.}-{0:0} { [ 46.523625][ C0] HARDIRQ-ON-W at: [ 46.523627][ C0] __lock_acquire+0x388/0xc20 [ 46.523630][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523632][ C0] fs_reclaim_acquire+0xd5/0x120 [ 46.523636][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 46.523638][ C0] kthread_create_worker_on_node+0xea/0x210 [ 46.523641][ C0] workqueue_init+0x2a/0x680 [ 46.523645][ C0] kernel_init_freeable+0x2fe/0x630 [ 46.523648][ C0] kernel_init+0x21/0x150 [ 46.523652][ C0] ret_from_fork+0x474/0x6b0 [ 46.523655][ C0] ret_from_fork_asm+0x11/0x20 [ 46.523658][ C0] SOFTIRQ-ON-W at: [ 46.523659][ C0] __lock_acquire+0x388/0xc20 [ 46.523661][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523662][ C0] fs_reclaim_acquire+0xd5/0x120 [ 46.523664][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 46.523665][ C0] kthread_create_worker_on_node+0xea/0x210 [ 46.523666][ C0] workqueue_init+0x2a/0x680 [ 46.523668][ C0] kernel_init_freeable+0x2fe/0x630 [ 46.523669][ C0] kernel_init+0x21/0x150 [ 46.523671][ C0] ret_from_fork+0x474/0x6b0 [ 46.523672][ C0] ret_from_fork_asm+0x11/0x20 [ 46.523673][ C0] INITIAL USE at: [ 46.523674][ C0] __lock_acquire+0x388/0xc20 [ 46.523676][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523677][ C0] fs_reclaim_acquire+0xd5/0x120 [ 46.523679][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 46.523680][ C0] kthread_create_worker_on_node+0xea/0x210 [ 46.523681][ C0] workqueue_init+0x2a/0x680 [ 46.523683][ C0] kernel_init_freeable+0x2fe/0x630 [ 46.523685][ C0] kernel_init+0x21/0x150 [ 46.523686][ C0] ret_from_fork+0x474/0x6b0 [ 46.523687][ C0] ret_from_fork_asm+0x11/0x20 [ 46.523689][ C0] } [ 46.523689][ C0] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 46.523693][ C0] ... acquired at: [ 46.523694][ C0] __lock_acquire+0x518/0xc20 [ 46.523696][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523697][ C0] fs_reclaim_acquire+0xd5/0x120 [ 46.523698][ C0] __kmalloc_noprof+0xd3/0x760 [ 46.523699][ C0] alloc_buf.isra.0+0x4b/0x260 [ 46.523703][ C0] put_chars+0x1e1/0x2f0 [ 46.523704][ C0] hvc_console_print+0x292/0x780 [ 46.523707][ C0] console_emit_next_record+0x22f/0x4c0 [ 46.523709][ C0] console_flush_one_record+0x46f/0x710 [ 46.523711][ C0] console_unlock+0xee/0x1f0 [ 46.523713][ C0] vprintk_emit+0x37c/0x3e0 [ 46.523713][ C0] _printk+0xc7/0x100 [ 46.523717][ C0] tun_init+0x24/0xb0 [ 46.523719][ C0] do_one_initcall+0x124/0x4f0 [ 46.523721][ C0] kernel_init_freeable+0x596/0x630 [ 46.523722][ C0] kernel_init+0x21/0x150 [ 46.523724][ C0] ret_from_fork+0x474/0x6b0 [ 46.523725][ C0] ret_from_fork_asm+0x11/0x20 [ 46.523726][ C0] [ 46.523726][ C0] -> (console_owner){..-.}-{0:0} { [ 46.523728][ C0] IN-SOFTIRQ-W at: [ 46.523729][ C0] __lock_acquire+0x388/0xc20 [ 46.523731][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523732][ C0] console_lock_spinning_enable+0x5c/0x60 [ 46.523734][ C0] console_emit_next_record+0x1d1/0x4c0 [ 46.523735][ C0] console_flush_one_record+0x46f/0x710 [ 46.523737][ C0] console_unlock+0xee/0x1f0 [ 46.523739][ C0] vprintk_emit+0x37c/0x3e0 [ 46.523740][ C0] _printk+0xc7/0x100 [ 46.523741][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 46.523743][ C0] call_timer_fn+0x160/0x4d0 [ 46.523745][ C0] __run_timers+0x68f/0xaa0 [ 46.523746][ C0] run_timer_softirq+0xf0/0x160 [ 46.523748][ C0] handle_softirqs+0x1d3/0x900 [ 46.523751][ C0] __irq_exit_rcu+0x145/0x1c0 [ 46.523752][ C0] irq_exit_rcu+0xe/0x30 [ 46.523754][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 46.523755][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.523757][ C0] lock_acquire.part.0+0x6d/0x280 [ 46.523759][ C0] unwind_next_frame+0x192/0x1ea0 [ 46.523761][ C0] arch_stack_walk+0xd7/0x130 [ 46.523763][ C0] stack_trace_save+0x93/0xc0 [ 46.523765][ C0] kasan_save_stack+0x2f/0x50 [ 46.523767][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 46.523769][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.523772][ C0] kmem_cache_free+0x2e5/0x550 [ 46.523773][ C0] fuse_chan_send+0x550/0x7a0 [ 46.523776][ C0] fuse_flush+0x481/0x660 [ 46.523778][ C0] ovl_flush+0x122/0x230 [ 46.523780][ C0] filp_flush+0xbc/0x140 [ 46.523783][ C0] __x64_sys_close+0x81/0xf0 [ 46.523784][ C0] do_syscall_64+0xff/0x530 [ 46.523787][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 46.523788][ C0] INITIAL USE at: [ 46.523789][ C0] } [ 46.523789][ C0] ... key at: [] console_owner_dep_map+0x0/0x60 [ 46.523792][ C0] ... acquired at: [ 46.523792][ C0] mark_lock+0x1d7/0xa00 [ 46.523794][ C0] mark_usage+0x42/0x170 [ 46.523795][ C0] __lock_acquire+0x388/0xc20 [ 46.523796][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523798][ C0] console_lock_spinning_enable+0x5c/0x60 [ 46.523800][ C0] console_emit_next_record+0x1d1/0x4c0 [ 46.523801][ C0] console_flush_one_record+0x46f/0x710 [ 46.523803][ C0] console_unlock+0xee/0x1f0 [ 46.523804][ C0] vprintk_emit+0x37c/0x3e0 [ 46.523805][ C0] _printk+0xc7/0x100 [ 46.523806][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 46.523808][ C0] call_timer_fn+0x160/0x4d0 [ 46.523809][ C0] __run_timers+0x68f/0xaa0 [ 46.523816][ C0] run_timer_softirq+0xf0/0x160 [ 46.523817][ C0] handle_softirqs+0x1d3/0x900 [ 46.523819][ C0] __irq_exit_rcu+0x145/0x1c0 [ 46.523820][ C0] irq_exit_rcu+0xe/0x30 [ 46.523821][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 46.523822][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.523823][ C0] lock_acquire.part.0+0x6d/0x280 [ 46.523825][ C0] unwind_next_frame+0x192/0x1ea0 [ 46.523826][ C0] arch_stack_walk+0xd7/0x130 [ 46.523827][ C0] stack_trace_save+0x93/0xc0 [ 46.523828][ C0] kasan_save_stack+0x2f/0x50 [ 46.523829][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 46.523830][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.523832][ C0] kmem_cache_free+0x2e5/0x550 [ 46.523833][ C0] fuse_chan_send+0x550/0x7a0 [ 46.523834][ C0] fuse_flush+0x481/0x660 [ 46.523836][ C0] ovl_flush+0x122/0x230 [ 46.523837][ C0] filp_flush+0xbc/0x140 [ 46.523838][ C0] __x64_sys_close+0x81/0xf0 [ 46.523839][ C0] do_syscall_64+0xff/0x530 [ 46.523841][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 46.523842][ C0] [ 46.523842][ C0] [ 46.523842][ C0] stack backtrace: [ 46.523845][ C0] CPU: 0 UID: 0 PID: 427 Comm: systemd-sysctl Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 46.523848][ C0] Tainted: [W]=WARN [ 46.523849][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 46.523851][ C0] Call Trace: [ 46.523852][ C0] [ 46.523853][ C0] dump_stack_lvl+0x6f/0xa0 [ 46.523858][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 46.523860][ C0] mark_lock_irq+0x989/0x9c0 [ 46.523862][ C0] ? add_lock_to_list+0x2c/0x1a0 [ 46.523865][ C0] mark_lock+0x1d7/0xa00 [ 46.523867][ C0] mark_usage+0x42/0x170 [ 46.523869][ C0] __lock_acquire+0x388/0xc20 [ 46.523871][ C0] lock_acquire.part.0+0xd4/0x280 [ 46.523873][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 46.523875][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523877][ C0] ? lock_acquire+0x13c/0x160 [ 46.523879][ C0] console_lock_spinning_enable+0x5c/0x60 [ 46.523881][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 46.523882][ C0] console_emit_next_record+0x1d1/0x4c0 [ 46.523885][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 46.523886][ C0] ? console_flush_one_record+0x106/0x710 [ 46.523888][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523889][ C0] ? lock_acquire+0x13c/0x160 [ 46.523891][ C0] console_flush_one_record+0x46f/0x710 [ 46.523894][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 46.523895][ C0] ? __lock_acquire+0x518/0xc20 [ 46.523898][ C0] console_unlock+0xee/0x1f0 [ 46.523900][ C0] ? console_flush_one_record+0x710/0x710 [ 46.523902][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523903][ C0] ? lock_acquire+0xe0/0x160 [ 46.523905][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 46.523907][ C0] ? vprintk_emit+0x320/0x3e0 [ 46.523908][ C0] vprintk_emit+0x37c/0x3e0 [ 46.523909][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 46.523911][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 46.523913][ C0] _printk+0xc7/0x100 [ 46.523915][ C0] ? snapshot_read.cold+0x21/0x21 [ 46.523917][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 46.523919][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.523921][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 46.523922][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.523924][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.523926][ C0] call_timer_fn+0x160/0x4d0 [ 46.523928][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 46.523930][ C0] ? debug_object_active_state+0x430/0x430 [ 46.523933][ C0] ? find_held_lock+0x2b/0x80 [ 46.523934][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.523936][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523938][ C0] __run_timers+0x68f/0xaa0 [ 46.523940][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.523942][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 46.523944][ C0] ? __lock_acquire+0x518/0xc20 [ 46.523946][ C0] ? __rwlock_init+0x150/0x150 [ 46.523949][ C0] run_timer_softirq+0xf0/0x160 [ 46.523951][ C0] ? __run_timers+0xaa0/0xaa0 [ 46.523953][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 46.523956][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523957][ C0] handle_softirqs+0x1d3/0x900 [ 46.523959][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.523961][ C0] ? _local_bh_enable+0xc0/0xc0 [ 46.523962][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 46.523965][ C0] __irq_exit_rcu+0x145/0x1c0 [ 46.523966][ C0] irq_exit_rcu+0xe/0x30 [ 46.523968][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 46.523969][ C0] [ 46.523970][ C0] [ 46.523971][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.523972][ C0] RIP: 0010:lock_acquire.part.0+0x6d/0x280 [ 46.523975][ C0] Code: 00 65 8b 0d 25 78 ed 04 85 c9 0f 85 e1 00 00 00 65 48 8b 05 25 33 ed 04 8b 90 04 0b 00 00 85 d2 0f 85 cb 00 00 00 9c 8f 04 24 48 c7 c7 d8 52 54 91 e8 e6 fc 84 02 45 89 f0 44 89 f9 4c 89 e7 [ 46.523977][ C0] RSP: 0018:ffa0000001867748 EFLAGS: 00000246 [ 46.523979][ C0] RAX: ff11000009900040 RBX: 0000000000000000 RCX: 0000000000000000 [ 46.523981][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 1ffffffff23f2980 [ 46.523982][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 46.523982][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff91f94c00 [ 46.523983][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 46.523985][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.523986][ C0] ? lock_acquire+0x13c/0x160 [ 46.523988][ C0] ? fuse_chan_send+0x550/0x7a0 [ 46.523990][ C0] unwind_next_frame+0x192/0x1ea0 [ 46.523991][ C0] ? unwind_next_frame+0x17e/0x1ea0 [ 46.523993][ C0] ? filp_flush+0xbc/0x140 [ 46.523995][ C0] ? stack_access_ok+0x1e0/0x1e0 [ 46.523997][ C0] ? __unwind_start+0x42e/0x900 [ 46.523999][ C0] ? write_profile+0xf0/0xf0 [ 46.524000][ C0] arch_stack_walk+0xd7/0x130 [ 46.524002][ C0] ? filp_flush+0xbc/0x140 [ 46.524004][ C0] stack_trace_save+0x93/0xc0 [ 46.524006][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 46.524008][ C0] kasan_save_stack+0x2f/0x50 [ 46.524010][ C0] ? kasan_save_stack+0x2f/0x50 [ 46.524011][ C0] ? kasan_record_aux_stack+0x9b/0xc0 [ 46.524012][ C0] ? __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.524014][ C0] ? kmem_cache_free+0x2e5/0x550 [ 46.524014][ C0] ? fuse_chan_send+0x550/0x7a0 [ 46.524016][ C0] ? fuse_flush+0x481/0x660 [ 46.524017][ C0] ? ovl_flush+0x122/0x230 [ 46.524018][ C0] ? filp_flush+0xbc/0x140 [ 46.524024][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 46.524025][ C0] ? __remove_object+0x90/0x90 [ 46.524027][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.524028][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 46.524030][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 46.524032][ C0] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 46.524033][ C0] kmem_cache_free+0x2e5/0x550 [ 46.524035][ C0] fuse_chan_send+0x550/0x7a0 [ 46.524037][ C0] fuse_flush+0x481/0x660 [ 46.524039][ C0] ? fuse_release+0x230/0x230 [ 46.524040][ C0] ? ovl_verify_lowerdata+0xda/0x6e0 [ 46.524043][ C0] ? validate_chain+0x38b/0xc20 [ 46.524045][ C0] ? ovl_path_next+0x750/0x750 [ 46.524048][ C0] ? ovl_real_file+0x172/0x1e0 [ 46.524049][ C0] ? find_held_lock+0x2b/0x80 [ 46.524050][ C0] ? ovl_fsync+0x2f0/0x2f0 [ 46.524052][ C0] ovl_flush+0x122/0x230 [ 46.524054][ C0] filp_flush+0xbc/0x140 [ 46.524056][ C0] __x64_sys_close+0x81/0xf0 [ 46.524057][ C0] do_syscall_64+0xff/0x530 [ 46.524059][ C0] ? exc_page_fault+0xee/0x100 [ 46.524061][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 46.524062][ C0] RIP: 0033:0x7f00e6104f8b [ 46.524064][ C0] Code: 0f 1e fa 55 48 63 ff 45 31 c9 45 31 c0 31 c9 48 89 e5 48 83 ec 08 6a 01 e8 e2 55 f8 ff c9 c3 f3 0f 1e fa b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 39 4e 10 00 f7 d8 [ 46.524065][ C0] RSP: 002b:00007ffc36f01658 EFLAGS: 00000297 ORIG_RAX: 0000000000000003 [ 46.524067][ C0] RAX: ffffffffffffffda RBX: 0000557248271380 RCX: 00007f00e6104f8b [ 46.524068][ C0] RDX: 00007f00e6208ec0 RSI: 7599eed36085e708 RDI: 0000000000000003 [ 46.524069][ C0] RBP: 00007ffc36f01690 R08: 00005572482700a0 R09: 0000000000000030 [ 46.524070][ C0] R10: 0000000000000031 R11: 0000000000000297 R12: 00007f00e6209010 [ 46.524071][ C0] R13: 0000000000000000 R14: 0000557248271380 R15: 000055723ceb4d50 [ 46.524073][ C0] [ 46.524076][ C0] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 46.524078][ C0] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 427, name: systemd-sysctl [ 46.524079][ C0] preempt_count: 102, expected: 0 [ 46.524080][ C0] RCU nest depth: 1, expected: 0 [ 46.524081][ C0] INFO: lockdep is turned off. [ 46.524081][ C0] irq event stamp: 29863 [ 46.524082][ C0] hardirqs last enabled at (29862): [] __down_trylock_console_sem+0x86/0xa0 [ 46.524085][ C0] hardirqs last disabled at (29863): [] console_emit_next_record+0x3d4/0x4c0 [ 46.524087][ C0] softirqs last enabled at (29468): [] handle_softirqs+0x67c/0x900 [ 46.524088][ C0] softirqs last disabled at (29849): [] __irq_exit_rcu+0x145/0x1c0 [ 46.524090][ C0] Preemption disabled at: [ 46.524091][ C0] [] handle_softirqs+0xf6/0x900 [ 46.524093][ C0] CPU: 0 UID: 0 PID: 427 Comm: systemd-sysctl Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 46.524095][ C0] Tainted: [W]=WARN [ 46.524096][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 46.524096][ C0] Call Trace: [ 46.524097][ C0] [ 46.524098][ C0] dump_stack_lvl+0x6f/0xa0 [ 46.524100][ C0] ? handle_softirqs+0xf6/0x900 [ 46.524101][ C0] __might_resched.cold+0x1fe/0x2c1 [ 46.524104][ C0] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 46.524108][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524109][ C0] __kmalloc_noprof+0x443/0x760 [ 46.524111][ C0] ? __rwlock_init+0x150/0x150 [ 46.524112][ C0] ? alloc_buf.isra.0+0x4b/0x260 [ 46.524115][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 46.524116][ C0] alloc_buf.isra.0+0x4b/0x260 [ 46.524119][ C0] put_chars+0x1e1/0x2f0 [ 46.524120][ C0] ? __send_to_port+0x420/0x420 [ 46.524122][ C0] ? mark_lock+0x1d7/0xa00 [ 46.524124][ C0] hvc_console_print+0x292/0x780 [ 46.524127][ C0] ? hvc_write+0x3a0/0x3a0 [ 46.524129][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524130][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524132][ C0] console_emit_next_record+0x22f/0x4c0 [ 46.524134][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 46.524136][ C0] ? console_flush_one_record+0x106/0x710 [ 46.524138][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524139][ C0] ? lock_acquire+0x13c/0x160 [ 46.524141][ C0] console_flush_one_record+0x46f/0x710 [ 46.524143][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 46.524145][ C0] ? __lock_acquire+0x518/0xc20 [ 46.524147][ C0] console_unlock+0xee/0x1f0 [ 46.524149][ C0] ? console_flush_one_record+0x710/0x710 [ 46.524151][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524152][ C0] ? lock_acquire+0xe0/0x160 [ 46.524154][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 46.524156][ C0] ? vprintk_emit+0x320/0x3e0 [ 46.524157][ C0] vprintk_emit+0x37c/0x3e0 [ 46.524159][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 46.524160][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 46.524162][ C0] _printk+0xc7/0x100 [ 46.524164][ C0] ? snapshot_read.cold+0x21/0x21 [ 46.524166][ C0] ? clocksource_watchdog.part.0+0x450/0x540 [ 46.524167][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.524170][ C0] clocksource_watchdog.part.0.cold+0x105/0x1dd [ 46.524171][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.524173][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.524175][ C0] call_timer_fn+0x160/0x4d0 [ 46.524177][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 46.524179][ C0] ? debug_object_active_state+0x430/0x430 [ 46.524180][ C0] ? find_held_lock+0x2b/0x80 [ 46.524182][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.524183][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524185][ C0] __run_timers+0x68f/0xaa0 [ 46.524187][ C0] ? clocksource_watchdog.part.0+0x540/0x540 [ 46.524189][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 46.524191][ C0] ? __lock_acquire+0x518/0xc20 [ 46.524194][ C0] ? __rwlock_init+0x150/0x150 [ 46.524196][ C0] run_timer_softirq+0xf0/0x160 [ 46.524198][ C0] ? __run_timers+0xaa0/0xaa0 [ 46.524200][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 46.524201][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524203][ C0] handle_softirqs+0x1d3/0x900 [ 46.524205][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 46.524206][ C0] ? _local_bh_enable+0xc0/0xc0 [ 46.524208][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 46.524210][ C0] __irq_exit_rcu+0x145/0x1c0 [ 46.524212][ C0] irq_exit_rcu+0xe/0x30 [ 46.524213][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 46.524215][ C0] [ 46.524215][ C0] [ 46.524217][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.524219][ C0] RIP: 0010:lock_acquire.part.0+0x6d/0x280 [ 46.524221][ C0] Code: 00 65 8b 0d 25 78 ed 04 85 c9 0f 85 e1 00 00 00 65 48 8b 05 25 33 ed 04 8b 90 04 0b 00 00 85 d2 0f 85 cb 00 00 00 9c 8f 04 24 48 c7 c7 d8 52 54 91 e8 e6 fc 84 02 45 89 f0 44 89 f9 4c 89 e7 [ 46.524222][ C0] RSP: 0018:ffa0000001867748 EFLAGS: 00000246 [ 46.524223][ C0] RAX: ff11000009900040 RBX: 0000000000000000 RCX: 0000000000000000 [ 46.524224][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 1ffffffff23f2980 [ 46.524224][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 46.524225][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff91f94c00 [ 46.524226][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 46.524228][ C0] ? rcu_is_watching+0x16/0xd0 [ 46.524229][ C0] ? lock_acquire+0x13c/0x160 [ 46.524231][ C0] ? fuse_chan_send+0x550/0x7a0 [ 46.524233][ C0] unwind_next_frame+0x192/0x1ea0 [ 46.524234][ C0] ? unwind_next_frame+0x17e/0x1ea0 [ 46.524235][ C0] ? filp_flush+0xbc/0x140 [ 46.524238][ C0] ? stack_access_ok+0x1e0/0x1e0 [ 46.524240][ C0] ? __unwind_start+0x42e/0x900 [ 46.524241][ C0] ? write_profile+0xf0/0xf0 [ 46.524243][ C0] arch_stack_walk+0xd7/0x130 [ 46.524245][ C0] ? filp_flush+0xbc/0x140 [ 46.524247][ C0] stack_trace_save+0x93/0xc0 [ 46.524248][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 46.524251][ C0] kasan_save_stack+0x2f/0x50 [ 46.524252][ C0] ? kasan_save_stack+0x2f/0x50 [ 46.524253][ C0] ? kasan_record_aux_stack+0x9b/0xc0 [ 46.524254][ C0] ? __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.524256][ C0] ? kmem_cache_free+0x2e5/0x550 [ 46.524257][ C0] ? fuse_chan_send+0x550/0x7a0 [ 46.524258][ C0] ? fuse_flush+0x481/0x660 [ 46.524260][ C0] ? ovl_flush+0x122/0x230 [ 46.524261][ C0] ? filp_flush+0xbc/0x140 [ 46.524266][ C0] kasan_record_aux_stack+0x9b/0xc0 [ 46.524267][ C0] ? __remove_object+0x90/0x90 [ 46.524269][ C0] __call_rcu_common.constprop.0+0xb2/0xa20 [ 46.524270][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 46.524272][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 46.524273][ C0] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 46.524274][ C0] kmem_cache_free+0x2e5/0x550 [ 46.524276][ C0] fuse_chan_send+0x550/0x7a0 [ 46.524278][ C0] fuse_flush+0x481/0x660 [ 46.524280][ C0] ? fuse_release+0x230/0x230 [ 46.524281][ C0] ? ovl_verify_lowerdata+0xda/0x6e0 [ 46.524283][ C0] ? validate_chain+0x38b/0xc20 [ 46.524285][ C0] ? ovl_path_next+0x750/0x750 [ 46.524288][ C0] ? ovl_real_file+0x172/0x1e0 [ 46.524289][ C0] ? find_held_lock+0x2b/0x80 [ 46.524290][ C0] ? ovl_fsync+0x2f0/0x2f0 [ 46.524292][ C0] ovl_flush+0x122/0x230 [ 46.524294][ C0] filp_flush+0xbc/0x140 [ 46.524296][ C0] __x64_sys_close+0x81/0xf0 [ 46.524297][ C0] do_syscall_64+0xff/0x530 [ 46.524299][ C0] ? exc_page_fault+0xee/0x100 [ 46.524300][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 46.524301][ C0] RIP: 0033:0x7f00e6104f8b [ 46.524302][ C0] Code: 0f 1e fa 55 48 63 ff 45 31 c9 45 31 c0 31 c9 48 89 e5 48 83 ec 08 6a 01 e8 e2 55 f8 ff c9 c3 f3 0f 1e fa b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 39 4e 10 00 f7 d8 [ 46.524303][ C0] RSP: 002b:00007ffc36f01658 EFLAGS: 00000297 ORIG_RAX: 0000000000000003 [ 46.524304][ C0] RAX: ffffffffffffffda RBX: 0000557248271380 RCX: 00007f00e6104f8b [ 46.524305][ C0] RDX: 00007f00e6208ec0 RSI: 7599eed36085e708 RDI: 0000000000000003 [ 46.524306][ C0] RBP: 00007ffc36f01690 R08: 00005572482700a0 R09: 0000000000000030 [ 46.524307][ C0] R10: 0000000000000031 R11: 0000000000000297 R12: 00007f00e6209010 [ 46.524307][ C0] R13: 0000000000000000 R14: 0000557248271380 R15: 000055723ceb4d50 [ 46.524309][ C0]