======================================
| [   13.947264][    C0]
| [   13.947264][    C0]
| [   13.947264][    C0] stack backtrace:
| [   13.947271][    C0] Tainted: [W]=WARN
[   13.947272][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.947273][    C0] Call Trace:
[   13.947274][    C0]  <IRQ>
[   13.947276][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.947280][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   13.947282][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   13.947284][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   13.947286][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   13.947288][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   13.947290][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   13.947292][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.947294][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   13.947296][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947299][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.947301][    C0]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   13.947303][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   13.947305][    C0]  console_emit_next_record (kernel/printk/printk.c:3177)
[   13.947307][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.947309][    C0]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.947311][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947313][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.947315][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.947317][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.947319][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.947321][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.947323][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.947324][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947326][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.947328][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.947330][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.947332][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.947334][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.947337][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   13.947338][    C0]  _printk (kernel/printk/printk.c:2504)
[   13.947340][    C0]  ? snapshot_read.cold (user.c:?)
[   13.947342][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   13.947344][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947346][    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))
[   13.947347][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947349][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947351][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   13.947353][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   13.947354][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   13.947358][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.947360][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947362][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947364][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   13.947366][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947368][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   13.947370][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.947372][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.947375][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   13.947377][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   13.947379][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.947381][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947383][    C0]  handle_softirqs (kernel/softirq.c:645)
[   13.947384][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947386][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   13.947388][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   13.947390][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   13.947391][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   13.947393][    C0]  </IRQ>
[   13.947393][    C0]  <TASK>
[   13.947394][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   13.947395][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   13.947397][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   13.947400][    C0] Code: 48 8b 3d 94 02 06 02 e8 1f 00 00 00 48 2b 05 58 03 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 17 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 02 06 02 	mov    0x2060294(%rip),%rdi        # 0x206029b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 03 a0 00 	sub    0xa00358(%rip),%rax        # 0xa0036b
  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 a6 17 00 	verw   0x17a613(%rip)        # 0x17a63b
  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
[   13.947401][    C0] RSP: 0018:ffffffffa3407cf8 EFLAGS: 00000296
[   13.947404][    C0] RAX: 00000000000611ff RBX: ffffffffa342c600 RCX: ffffffffa02fa307
[   13.947405][    C0] RDX: ffffffffa342c600 RSI: ffffffffa3278e7e RDI: ffffffffa2c8dce0
[   13.947406][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   13.947407][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4680fa2
[   13.947407][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   13.947409][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   13.947411][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.947412][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   13.947414][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   13.947415][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   13.947417][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   13.947418][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   13.947421][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947423][    C0]  do_idle (kernel/sched/idle.c:355)
[   13.947424][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   13.947426][    C0]  rest_init (init/main.c:727)
[   13.947428][    C0]  ? __cpuidle_text_end (??:?)
[   13.947430][    C0]  ? rest_init (init/main.c:727)
[   13.947432][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   13.947434][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   13.947437][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   13.947440][    C0]  start_kernel (init/main.c:1185)
[   13.947442][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   13.947444][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   13.947445][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   13.947468][    C0] softirqs last disabled at (397825): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.947470][    C0] Preemption disabled at:
| [   13.947470][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   13.947475][    C0] Tainted: [W]=WARN
[   13.947476][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.947476][    C0] Call Trace:
[   13.947477][    C0]  <IRQ>
[   13.947477][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.947479][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   13.947481][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.947484][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.947487][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947489][    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))
[   13.947491][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.947492][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.947494][    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)
[   13.947496][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.947498][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   13.947500][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.947502][    C0]  ? mark_lock (kernel/locking/lockdep.c:4769)
[   13.947504][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.947507][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.947508][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947510][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947513][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.947515][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.947516][    C0]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.947518][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947520][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.947522][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.947524][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.947526][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.947528][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.947530][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.947532][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947534][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.947536][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.947537][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.947539][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.947541][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.947544][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   13.947545][    C0]  _printk (kernel/printk/printk.c:2504)
[   13.947547][    C0]  ? snapshot_read.cold (user.c:?)
[   13.947549][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   13.947551][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947553][    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))
[   13.947554][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947556][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947558][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   13.947560][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   13.947562][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   13.947563][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.947565][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947567][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947569][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   13.947571][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   13.947573][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   13.947575][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.947577][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.947580][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   13.947582][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   13.947583][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.947585][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947586][    C0]  handle_softirqs (kernel/softirq.c:645)
[   13.947588][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.947590][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   13.947592][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   13.947593][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   13.947595][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   13.947596][    C0]  </IRQ>
[   13.947597][    C0]  <TASK>
[   13.947597][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   13.947599][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   13.947600][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   13.947602][    C0] Code: 48 8b 3d 94 02 06 02 e8 1f 00 00 00 48 2b 05 58 03 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 17 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 02 06 02 	mov    0x2060294(%rip),%rdi        # 0x206029b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 03 a0 00 	sub    0xa00358(%rip),%rax        # 0xa0036b
  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 a6 17 00 	verw   0x17a613(%rip)        # 0x17a63b
  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
[   13.947603][    C0] RSP: 0018:ffffffffa3407cf8 EFLAGS: 00000296
[   13.947604][    C0] RAX: 00000000000611ff RBX: ffffffffa342c600 RCX: ffffffffa02fa307
[   13.947605][    C0] RDX: ffffffffa342c600 RSI: ffffffffa3278e7e RDI: ffffffffa2c8dce0
[   13.947605][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   13.947606][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4680fa2
[   13.947607][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   13.947608][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   13.947610][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.947612][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   13.947613][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   13.947614][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   13.947616][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   13.947618][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   13.947619][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.947621][    C0]  do_idle (kernel/sched/idle.c:355)
[   13.947623][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   13.947624][    C0]  rest_init (init/main.c:727)
[   13.947626][    C0]  ? __cpuidle_text_end (??:?)
[   13.947628][    C0]  ? rest_init (init/main.c:727)
[   13.947630][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   13.947631][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   13.947633][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   13.947635][    C0]  start_kernel (init/main.c:1185)
[   13.947637][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   13.947639][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   13.947641][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   19.000768][   T70] softirqs last disabled at (13340): release_sock (./include/linux/spinlock.h:353 net/core/sock.c:3858)
| [   19.000772][   T70] Preemption disabled at:
| [   19.000772][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.000784][   T70] Tainted: [W]=WARN
[   19.000785][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.000787][   T70] Workqueue: krds_cp_wq#1/5 rds_shutdown_worker
[   19.000792][   T70] Call Trace:
[   19.000793][   T70]  <TASK>
[   19.000795][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.000800][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.000802][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.000806][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.000810][   T70]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   19.000812][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000816][   T70]  __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))
[   19.000819][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.000822][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.000826][   T70]  ? 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)
[   19.000828][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.000830][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   19.000832][   T70]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   19.000834][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.000835][   T70]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.000838][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.000842][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.000844][   T70]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   19.000845][   T70]  ? vsnprintf (lib/vsprintf.c:2900)
[   19.000848][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.000849][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000851][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.000854][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.000856][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.000859][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000860][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000862][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000864][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.000866][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   19.000868][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.000870][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.000874][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.000876][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.000877][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.000879][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000881][   T70]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   19.000883][   T70]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.000884][   T70]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   19.000886][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.000888][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.000891][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.000893][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.000895][   T70]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   19.000897][   T70]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.000899][   T70]  ? __queue_work (./include/linux/rcupdate.h:882 kernel/workqueue.c:2459)
[   19.000902][   T70]  __rds_conn_path_error (net/rds/connection.c:999)
[   19.000905][   T70]  ? rds_check_all_paths (net/rds/connection.c:983)
[   19.000907][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.000909][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000911][   T70]  ? rds_conn_shutdown (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 net/rds/connection.c:401)
[   19.000913][   T70]  rds_conn_shutdown (net/rds/connection.c:401 (discriminator 1))
[   19.000914][   T70]  ? __rds_conn_path_error (net/rds/connection.c:1003)
[   19.000916][   T70]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   19.000920][   T70]  ? update_load_avg (kernel/sched/fair.c:5864)
[   19.000922][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000924][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000926][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.000928][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.000930][   T70]  ? process_one_work (kernel/workqueue.c:3363 (discriminator 2))
[   19.000932][   T70]  process_one_work (kernel/workqueue.c:3387)
[   19.000935][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   19.000938][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.000940][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   19.000943][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.000946][   T70]  kthread (kernel/kthread.c:436)
[   19.000949][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.000952][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.000954][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.000958][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   19.000960][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.000962][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.000964][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   37.268320][  T253] softirqs last disabled at (0): 0x0
| [   37.268321][  T253] Preemption disabled at:
| [   37.268322][  T253] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.268334][  T253] Tainted: [W]=WARN
[   37.268335][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.268336][  T253] Workqueue: krds_cp_wq#1/2 rds_shutdown_worker
[   37.268343][  T253] Call Trace:
[   37.268344][  T253]  <TASK>
[   37.268346][  T253]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.268351][  T253]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.268353][  T253]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.268357][  T253]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.268360][  T253]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   37.268362][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268366][  T253]  __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))
[   37.268369][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.268372][  T253]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.268376][  T253]  ? 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)
[   37.268378][  T253]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.268380][  T253]  put_chars (drivers/char/virtio_console.c:1176)
[   37.268382][  T253]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   37.268383][  T253]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.268385][  T253]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   37.268388][  T253]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.268392][  T253]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.268393][  T253]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   37.268395][  T253]  ? vsnprintf (lib/vsprintf.c:2900)
[   37.268397][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.268399][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268400][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.268403][  T253]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.268405][  T253]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.268407][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268409][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268411][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268412][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.268414][  T253]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   37.268416][  T253]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.268418][  T253]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.268421][  T253]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.268423][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.268424][  T253]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.268426][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268428][  T253]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.268429][  T253]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   37.268431][  T253]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   37.268433][  T253]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.268435][  T253]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.268437][  T253]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.268439][  T253]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.268441][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268443][  T253]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.268446][  T253]  ? try_to_grab_pending (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:71 kernel/workqueue.c:2158)
[   37.268449][  T253]  __rds_conn_path_error (net/rds/connection.c:999)
[   37.268451][  T253]  ? rds_check_all_paths (net/rds/connection.c:983)
[   37.268453][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.268455][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268457][  T253]  ? rds_conn_shutdown (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 net/rds/connection.c:401)
[   37.268458][  T253]  rds_conn_shutdown (net/rds/connection.c:401 (discriminator 1))
[   37.268460][  T253]  ? __rds_conn_path_error (net/rds/connection.c:1003)
[   37.268462][  T253]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   37.268466][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268467][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268469][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.268470][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.268473][  T253]  ? process_one_work (kernel/workqueue.c:3363 (discriminator 2))
[   37.268474][  T253]  process_one_work (kernel/workqueue.c:3387)
[   37.268477][  T253]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   37.268479][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.268482][  T253]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   37.268484][  T253]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   37.268486][  T253]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   37.268488][  T253]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   37.268490][  T253]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   37.268491][  T253]  kthread (kernel/kthread.c:436)
[   37.268493][  T253]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.268496][  T253]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   37.268498][  T253]  ret_from_fork (arch/x86/kernel/process.c:158)
[   37.268501][  T253]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   37.268503][  T253]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   37.268505][  T253]  ? kthread_affine_preferred (kernel/kthread.c:857)


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