======================================
| [   10.500707][    C0]
| [   10.500707][    C0]
| [   10.500707][    C0] stack backtrace:
| [   10.500714][    C0] Tainted: [W]=WARN
[   10.500714][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.500717][    C0] Call Trace:
[   10.500718][    C0]  <IRQ>
[   10.500719][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.500724][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   10.500726][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   10.500728][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   10.500731][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   10.500733][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   10.500735][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   10.500737][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.500739][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   10.500741][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500743][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.500746][    C0]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   10.500747][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   10.500749][    C0]  console_emit_next_record (kernel/printk/printk.c:3177)
[   10.500751][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.500753][    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))
[   10.500755][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500756][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.500758][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.500761][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.500763][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.500765][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.500767][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.500769][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500770][    C0]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.500772][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.500774][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.500775][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.500777][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.500778][    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))
[   10.500780][    C0]  _printk (kernel/printk/printk.c:2504)
[   10.500782][    C0]  ? snapshot_read.cold (user.c:?)
[   10.500784][    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))
[   10.500786][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.500788][    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))
[   10.500790][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.500792][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.500793][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   10.500796][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   10.500797][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   10.500800][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.500803][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.500804][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500806][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   10.500808][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.500811][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   10.500813][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.500815][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.500818][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   10.500821][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   10.500823][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.500831][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500832][    C0]  handle_softirqs (kernel/softirq.c:645)
[   10.500834][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.500836][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   10.500838][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   10.500840][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   10.500842][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   10.500843][    C0]  </IRQ>
[   10.500844][    C0]  <TASK>
[   10.500845][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   10.500847][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   10.500848][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   10.500851][    C0] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 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 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  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 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  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
[   10.500853][    C0] RSP: 0018:ffffffffb4807cf8 EFLAGS: 00000296
[   10.500855][    C0] RAX: 000000000004c8e1 RBX: ffffffffb4830600 RCX: ffffffffb0f06247
[   10.500856][    C0] RDX: ffffffffb4830600 RSI: ffffffffb4111011 RDI: ffffffffb3a949e0
[   10.500857][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   10.500858][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff6900fa2
[   10.500859][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   10.500861][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.500863][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.500865][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   10.500866][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   10.500868][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.500870][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   10.500871][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   10.500874][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500876][    C0]  do_idle (kernel/sched/idle.c:355)
[   10.500877][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   10.500879][    C0]  rest_init (init/main.c:727)
[   10.500881][    C0]  ? __cpuidle_text_end (??:?)
[   10.500884][    C0]  ? rest_init (init/main.c:727)
[   10.500885][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   10.500889][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   10.500891][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   10.500893][    C0]  start_kernel (init/main.c:1185)
[   10.500895][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   10.500896][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   10.500898][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   10.500917][    C0] softirqs last disabled at (313571): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.500919][    C0] Preemption disabled at:
| [   10.500920][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   10.500925][    C0] Tainted: [W]=WARN
[   10.500926][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.500926][    C0] Call Trace:
[   10.500927][    C0]  <IRQ>
[   10.500928][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.500930][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   10.500932][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.500935][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.500938][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500940][    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))
[   10.500941][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.500943][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.500946][    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)
[   10.500947][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.500950][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   10.500952][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.500954][    C0]  ? mark_lock (kernel/locking/lockdep.c:4769)
[   10.500956][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.500959][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.500961][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500962][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500964][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.500967][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.500968][    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))
[   10.500971][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500972][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.500974][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.500976][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.500978][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.500981][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.500983][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.500985][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.500986][    C0]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.500988][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.500990][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.500991][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.500993][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.500995][    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))
[   10.500997][    C0]  _printk (kernel/printk/printk.c:2504)
[   10.500999][    C0]  ? snapshot_read.cold (user.c:?)
[   10.501001][    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))
[   10.501003][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.501005][    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))
[   10.501007][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.501009][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.501010][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   10.501013][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   10.501014][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   10.501016][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.501018][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.501020][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.501022][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   10.501024][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.501026][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   10.501028][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.501031][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.501034][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   10.501036][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   10.501038][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.501039][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.501040][    C0]  handle_softirqs (kernel/softirq.c:645)
[   10.501043][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.501044][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   10.501047][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   10.501048][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   10.501050][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   10.501051][    C0]  </IRQ>
[   10.501052][    C0]  <TASK>
[   10.501052][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   10.501054][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   10.501056][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   10.501058][    C0] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 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 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  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 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  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
[   10.501059][    C0] RSP: 0018:ffffffffb4807cf8 EFLAGS: 00000296
[   10.501060][    C0] RAX: 000000000004c8e1 RBX: ffffffffb4830600 RCX: ffffffffb0f06247
[   10.501061][    C0] RDX: ffffffffb4830600 RSI: ffffffffb4111011 RDI: ffffffffb3a949e0
[   10.501061][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   10.501062][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff6900fa2
[   10.501063][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   10.501064][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.501067][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.501068][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   10.501070][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   10.501071][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.501073][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   10.501075][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   10.501076][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.501078][    C0]  do_idle (kernel/sched/idle.c:355)
[   10.501079][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   10.501081][    C0]  rest_init (init/main.c:727)
[   10.501083][    C0]  ? __cpuidle_text_end (??:?)
[   10.501085][    C0]  ? rest_init (init/main.c:727)
[   10.501087][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   10.501089][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   10.501091][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   10.501093][    C0]  start_kernel (init/main.c:1185)
[   10.501095][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   10.501096][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   10.501098][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   16.810474][  T253] softirqs last disabled at (0): 0x0
| [   16.810476][  T253] Preemption disabled at:
| [   16.810476][  T253] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.810487][  T253] Tainted: [W]=WARN
[   16.810488][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.810490][  T253] Call Trace:
[   16.810492][  T253]  <TASK>
[   16.810493][  T253]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.810499][  T253]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.810500][  T253]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.810504][  T253]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   16.810506][  T253]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.810509][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810511][  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))
[   16.810515][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.810518][  T253]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.810523][  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)
[   16.810524][  T253]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.810527][  T253]  put_chars (drivers/char/virtio_console.c:1176)
[   16.810528][  T253]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.810530][  T253]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   16.810532][  T253]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.810537][  T253]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.810539][  T253]  ? vsnprintf (lib/vsprintf.c:2900)
[   16.810542][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.810544][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810545][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810546][  T253]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.810549][  T253]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.810551][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810552][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810553][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810554][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.810556][  T253]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   16.810558][  T253]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.810560][  T253]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.810563][  T253]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.810564][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.810566][  T253]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.810567][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810568][  T253]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   16.810570][  T253]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   16.810571][  T253]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   16.810573][  T253]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.810575][  T253]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.810576][  T253]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.810578][  T253]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.810580][  T253]  ? ip6gre_fini (net/ipv6/ip6_gre.c:1120) ip6_gre
[   16.810583][  T253]  _printk (kernel/printk/printk.c:2504)
[   16.810587][  T253]  ? snapshot_read.cold (user.c:?)
[   16.810589][  T253]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   16.810592][  T253] ip6gre_init (net/ipv6/ip6_gre.c:223) ip6_gre
[   16.810594][  T253]  do_one_initcall (init/main.c:1357)
[   16.810596][  T253]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.810598][  T253]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.810601][  T253]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.810604][  T253]  do_init_module (kernel/module/main.c:3117)
[   16.810606][  T253]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.810607][  T253]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.810609][  T253]  load_module (kernel/module/main.c:3593)
[   16.810611][  T253]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   16.810615][  T253]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.810617][  T253]  ? __ia32_sys_fsconfig (??:?)
[   16.810620][  T253]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.810623][  T253]  init_module_from_file (kernel/module/main.c:3790)
[   16.810625][  T253]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.810626][  T253]  ? ovl_mmap (fs/overlayfs/file.c:477)
[   16.810629][  T253]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.810631][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.810632][  T253]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   16.810634][  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)
[   16.810636][  T253]  idempotent_init_module (kernel/module/main.c:3802)
[   16.810637][  T253]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.810639][  T253]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.810641][  T253]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   16.810644][  T253]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.810645][  T253]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.810648][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.810650][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.810652][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.810654][  T253] RIP: 0033:0x7f7eaa92e37d
[   16.810657][  T253] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.810658][  T253] RSP: 002b:00007ffcdbcf1d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.810661][  T253] RAX: ffffffffffffffda RBX: 000055fddb061810 RCX: 00007f7eaa92e37d
[   16.810663][  T253] RDX: 0000000000000000 RSI: 000055fdac534ffd RDI: 0000000000000000
[   16.810664][  T253] RBP: 00007ffcdbcf1de0 R08: 0000000000000000 R09: 0000000000000000
[   16.810665][  T253] R10: 0000000000000000 R11: 0000000000000246 R12: 000055fdac534ffd


Finger prints:
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
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