======================================
| [   21.071302][    C0]
| [   21.071303][    C0]
| [   21.071303][    C0] stack backtrace:
| [   21.071309][    C0] Tainted: [W]=WARN
[   21.071310][    C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   21.071312][    C0] Call Trace:
[   21.071313][    C0]  <IRQ>
[   21.071314][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.071318][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   21.071321][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   21.071322][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   21.071326][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   21.071327][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   21.071329][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   21.071331][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.071333][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   21.071335][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071338][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.071340][    C0]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   21.071342][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   21.071344][    C0]  console_emit_next_record (kernel/printk/printk.c:3177)
[   21.071346][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.071348][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071350][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.071352][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.071354][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.071356][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.071358][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.071360][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.071362][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071364][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   21.071366][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.071367][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.071369][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.071372][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.071374][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   21.071376][    C0]  _printk (kernel/printk/printk.c:2504)
[   21.071378][    C0]  ? snapshot_read.cold (user.c:?)
[   21.071380][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   21.071381][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071384][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   21.071385][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071387][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071389][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   21.071391][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   21.071392][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   21.071395][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.071397][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071399][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071401][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   21.071403][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071405][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   21.071407][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.071410][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.071413][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   21.071415][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   21.071416][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.071419][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071421][    C0]  handle_softirqs (kernel/softirq.c:645)
[   21.071423][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071425][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   21.071427][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   21.071428][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   21.071430][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   21.071432][    C0]  </IRQ>
[   21.071433][    C0]  <TASK>
[   21.071433][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   21.071435][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   21.071437][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   21.071439][    C0] Code: 48 8b 3d 94 52 73 02 e8 1f 00 00 00 48 2b 05 58 e3 ae 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 76 1e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 52 73 02 	mov    0x2735294(%rip),%rdi        # 0x273529b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 e3 ae 00 	sub    0xaee358(%rip),%rax        # 0xaee36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 76 1e 00 	verw   0x1e7613(%rip)        # 0x1e763b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   21.071441][    C0] RSP: 0018:ffffffffa3c07cf8 EFLAGS: 00000296
[   21.071444][    C0] RAX: 0000000000082daf RBX: ffffffffa3c1c600 RCX: ffffffffa03103a7
[   21.071445][    C0] RDX: ffffffffa3c1c600 RSI: ffffffffa34f7c2a RDI: ffffffffa2e913e0
[   21.071446][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   21.071447][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4780fa2
[   21.071448][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   21.071450][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   21.071452][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.071454][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   21.071456][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   21.071457][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   21.071459][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   21.071461][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   21.071463][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.071465][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071467][    C0]  do_idle (kernel/sched/idle.c:355)
[   21.071468][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   21.071470][    C0]  rest_init (init/main.c:727)
[   21.071471][    C0]  ? __cpuidle_text_end (??:?)
[   21.071474][    C0]  ? rest_init (init/main.c:727)
[   21.071475][    C0]  ? acpi_hw_write_port (drivers/acpi/acpica/hwvalid.c:264)
[   21.071479][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:74)
[   21.071481][    C0]  start_kernel (init/main.c:1185)
[   21.071483][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   21.071485][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   21.071488][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   21.071507][    C0] softirqs last disabled at (535985): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.071508][    C0] Preemption disabled at:
| [   21.071509][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   21.071514][    C0] Tainted: [W]=WARN
[   21.071514][    C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   21.071515][    C0] Call Trace:
[   21.071516][    C0]  <IRQ>
[   21.071517][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.071519][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   21.071520][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.071523][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.071526][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071528][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.071530][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.071532][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.071534][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.071536][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.071539][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   21.071541][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.071544][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.071546][    C0]  ? mark_usage (kernel/locking/lockdep.c:4658)
[   21.071548][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5208)
[   21.071550][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.071552][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.071554][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071556][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.071558][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.071560][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.071562][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071564][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.071566][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.071568][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.071570][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.071572][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.071574][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.071576][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071578][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   21.071580][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.071581][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.071583][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.071585][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.071588][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   21.071590][    C0]  _printk (kernel/printk/printk.c:2504)
[   21.071591][    C0]  ? snapshot_read.cold (user.c:?)
[   21.071593][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   21.071595][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071597][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   21.071599][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071601][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071602][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   21.071604][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   21.071606][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   21.071607][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.071609][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071611][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071613][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   21.071615][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   21.071617][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   21.071619][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.071621][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.071624][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   21.071626][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   21.071628][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.071629][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071631][    C0]  handle_softirqs (kernel/softirq.c:645)
[   21.071633][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.071634][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   21.071636][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   21.071638][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   21.071639][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   21.071641][    C0]  </IRQ>
[   21.071642][    C0]  <TASK>
[   21.071642][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   21.071644][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   21.071645][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   21.071648][    C0] Code: 48 8b 3d 94 52 73 02 e8 1f 00 00 00 48 2b 05 58 e3 ae 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 76 1e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 52 73 02 	mov    0x2735294(%rip),%rdi        # 0x273529b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 e3 ae 00 	sub    0xaee358(%rip),%rax        # 0xaee36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 76 1e 00 	verw   0x1e7613(%rip)        # 0x1e763b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   21.071649][    C0] RSP: 0018:ffffffffa3c07cf8 EFLAGS: 00000296
[   21.071650][    C0] RAX: 0000000000082daf RBX: ffffffffa3c1c600 RCX: ffffffffa03103a7
[   21.071651][    C0] RDX: ffffffffa3c1c600 RSI: ffffffffa34f7c2a RDI: ffffffffa2e913e0
[   21.071652][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   21.071652][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4780fa2
[   21.071653][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   21.071654][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   21.071657][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.071659][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   21.071661][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   21.071662][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   21.071663][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   21.071665][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   21.071666][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.071668][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.071670][    C0]  do_idle (kernel/sched/idle.c:355)
[   21.071671][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   21.071673][    C0]  rest_init (init/main.c:727)
[   21.071674][    C0]  ? __cpuidle_text_end (??:?)
[   21.071677][    C0]  ? rest_init (init/main.c:727)
[   21.071678][    C0]  ? acpi_hw_write_port (drivers/acpi/acpica/hwvalid.c:264)
[   21.071683][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:74)
[   21.071685][    C0]  start_kernel (init/main.c:1185)
[   21.071688][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   21.071690][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   21.071693][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   49.190028][   T39] softirqs last disabled at (0): 0x0
| [   49.190031][   T39] Preemption disabled at:
| [   49.190031][   T39] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.190043][   T39] Tainted: [W]=WARN
[   49.190044][   T39] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   49.190046][   T39] Workqueue: events_power_efficient phylink_resolve
[   49.190052][   T39] Call Trace:
[   49.190054][   T39]  <TASK>
[   49.190056][   T39]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.190061][   T39]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.190063][   T39]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.190067][   T39]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.190070][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190074][   T39]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   49.190078][   T39]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   49.190080][   T39]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.190085][   T39]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   49.190087][   T39]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.190089][   T39]  put_chars (drivers/char/virtio_console.c:1176)
[   49.190092][   T39]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.190094][   T39]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   49.190096][   T39]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   49.190098][   T39]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   49.190101][   T39]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.190105][   T39]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.190107][   T39]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   49.190109][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190110][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190112][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.190114][   T39]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.190117][   T39]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.190120][   T39]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   49.190122][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190125][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190127][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190129][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.190132][   T39]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   49.190135][   T39]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.190138][   T39]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.190142][   T39]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.190144][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.190147][   T39]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.190149][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190151][   T39]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   49.190153][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   49.190155][   T39]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:96)
[   49.190158][   T39]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.190161][   T39]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.190163][   T39]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.190165][   T39]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.190167][   T39]  ? wakeup_preempt_fair (kernel/sched/fair.c:1142 kernel/sched/fair.c:10033)
[   49.190170][   T39]  dev_vprintk_emit (drivers/base/core.c:5000)
[   49.190175][   T39]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[   49.190177][   T39]  ? trace_sched_wakeup (./include/trace/events/sched.h:178 (discriminator 22))
[   49.190179][   T39]  ? _raw_spin_unlock_irq_enable (./include/linux/spinlock_api_smp.h:229 (discriminator 1) kernel/locking/spinlock.c:237 (discriminator 1))
[   49.190181][   T39]  ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1))
[   49.190183][   T39]  dev_printk_emit (drivers/base/core.c:5011)
[   49.190185][   T39]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[   49.190187][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190189][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190191][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.190194][   T39]  ? rcu_irq_exit_check_preempt (kernel/rcu/tree.c:631)
[   49.190196][   T39]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   49.190197][   T39]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[   49.190201][   T39]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[   49.190205][   T39]  netdev_printk (net/core/dev.c:13166)
[   49.190207][   T39]  ? __netdev_printk (net/core/dev.c:13151 (discriminator 1))
[   49.190208][   T39]  ? fbnic_rd32 (./arch/x86/include/asm/io.h:59 (discriminator 1) drivers/net/ethernet/meta/fbnic/fbnic_pci.c:45 (discriminator 1))
[   49.190211][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.190212][   T39]  ? fbnic_mac_link_down_asic (drivers/net/ethernet/meta/fbnic/fbnic_mac.c:708)
[   49.190215][   T39]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   49.190217][   T39]  ? fbnic_phylink_mac_link_down (drivers/net/ethernet/meta/fbnic/fbnic_phylink.c:156)
[   49.190219][   T39]  phylink_resolve (drivers/net/phy/phylink.c:1720)
[   49.190220][   T39]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   49.190222][   T39]  ? debug_object_deactivate (lib/debugobjects.c:946)
[   49.190226][   T39]  ? phylink_ethtool_ksettings_set (drivers/net/phy/phylink.c:189 (discriminator 1))
[   49.190228][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190229][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190231][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.190232][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190234][   T39]  process_one_work (kernel/workqueue.c:3387)
[   49.190238][   T39]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   49.190240][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.190242][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.190243][   T39]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   49.190245][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.190247][   T39]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   49.190250][   T39]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   49.190252][   T39]  kthread (kernel/kthread.c:436)
[   49.190255][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.190256][   T39]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   49.190258][   T39]  ret_from_fork (arch/x86/kernel/process.c:158)
[   49.190261][   T39]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   49.190263][   T39]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   49.190266][   T39]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars