======================================
| [   10.781981][  T176] softirqs last disabled at (40729): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.781984][  T176] Preemption disabled at:
| [   10.781984][  T176] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.781993][  T176] Tainted: [W]=WARN
[   10.781994][  T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.781996][  T176] Call Trace:
[   10.781997][  T176]  <TASK>
[   10.781999][  T176]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.782004][  T176]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.782006][  T176]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.782011][  T176]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.782015][  T176]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.782021][  T176]  __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))
[   10.782023][  T176]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.782030][  T176]  ? 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)
[   10.782033][  T176]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.782036][  T176]  put_chars (drivers/char/virtio_console.c:1176)
[   10.782040][  T176]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.782043][  T176]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.782048][  T176]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.782055][  T176]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.782058][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.782061][  T176]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.782065][  T176]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.782070][  T176]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.782074][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.782076][  T176]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.782080][  T176]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.782085][  T176]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.782087][  T176]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.782092][  T176]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.782095][  T176]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.782097][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.782099][  T176]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.782103][  T176]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.782104][  T176]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.782107][  T176]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.782111][  T176]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.782112][  T176]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.782115][  T176]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.782117][  T176]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.782121][  T176]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   10.782124][  T176]  _printk (kernel/printk/printk.c:2504)
[   10.782128][  T176]  ? snapshot_read.cold (user.c:?)
[   10.782131][  T176]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.782134][  T176]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   10.782138][  T176]  ? configfs_register_subsystem (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1383 fs/configfs/dir.c:173 fs/configfs/dir.c:171 fs/configfs/dir.c:1929)
[   10.782143][  T176] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.782146][  T176]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   10.782153][  T176]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   10.782155][  T176]  do_one_initcall (init/main.c:1357)
[   10.782158][  T176]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.782163][  T176]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.782165][  T176]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.782170][  T176]  do_init_module (kernel/module/main.c:3117)
[   10.782173][  T176]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.782177][  T176]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.782179][  T176]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.782184][  T176]  load_module (kernel/module/main.c:3593)
[   10.782190][  T176]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.782194][  T176]  ? __ia32_sys_fsconfig (??:?)
[   10.782196][  T176]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   10.782202][  T176]  init_module_from_file (kernel/module/main.c:3790)
[   10.782204][  T176]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.782212][  T176]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.782216][  T176]  ? 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)
[   10.782219][  T176]  idempotent_init_module (kernel/module/main.c:3802)
[   10.782222][  T176]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.782228][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.782229][  T176]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.782235][  T176]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.782237][  T176]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.782241][  T176]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.782243][  T176]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.782246][  T176]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.782248][  T176] RIP: 0033:0x7f0aae50137d
[   10.782251][  T176] 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
[   10.782253][  T176] RSP: 002b:00007ffe40cf57f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.782256][  T176] RAX: ffffffffffffffda RBX: 0000555f2c639700 RCX: 00007f0aae50137d
[   10.782257][  T176] RDX: 0000000000000000 RSI: 0000555f13e7fffd RDI: 0000000000000005
[   10.782258][  T176] RBP: 00007ffe40cf5890 R08: 0000000000000000 R09: 0000000000000000
[   10.782259][  T176] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555f13e7fffd
[   10.782260][  T176] R13: 0000555f2c639810 R14: 0000000000040000 R15: 0000000000000000
| [   11.911234][    C0]
| [   11.911234][    C0]
| [   11.911234][    C0] stack backtrace:
| [   11.911240][    C0] Tainted: [W]=WARN
[   11.911241][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.911243][    C0] Call Trace:
[   11.911244][    C0]  <IRQ>
[   11.911245][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.911249][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   11.911252][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   11.911254][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   11.911257][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   11.911259][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   11.911261][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   11.911263][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.911265][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   11.911267][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911270][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.911272][    C0]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   11.911274][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   11.911276][    C0]  console_emit_next_record (kernel/printk/printk.c:3177)
[   11.911278][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.911281][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911282][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.911284][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.911287][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.911289][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.911291][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.911293][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.911295][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911296][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.911299][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.911301][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.911302][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.911304][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.911306][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   11.911308][    C0]  _printk (kernel/printk/printk.c:2504)
[   11.911309][    C0]  ? snapshot_read.cold (user.c:?)
[   11.911311][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   11.911313][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911316][    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))
[   11.911317][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911319][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911321][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   11.911323][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   11.911325][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   11.911328][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.911330][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911332][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911334][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   11.911336][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911338][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   11.911340][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.911343][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.911345][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   11.911348][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   11.911350][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.911352][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911354][    C0]  handle_softirqs (kernel/softirq.c:645)
[   11.911356][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911358][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   11.911360][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   11.911362][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   11.911363][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   11.911365][    C0]  </IRQ>
[   11.911365][    C0]  <TASK>
[   11.911366][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   11.911368][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   11.911370][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   11.911372][    C0] Code: 48 8b 3d 94 a2 72 02 e8 1f 00 00 00 48 2b 05 58 b3 b3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 66 2a 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 a2 72 02 	mov    0x272a294(%rip),%rdi        # 0x272a29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 b3 00 	sub    0xb3b358(%rip),%rax        # 0xb3b36b
  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 66 2a 00 	verw   0x2a6613(%rip)        # 0x2a663b
  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
[   11.911374][    C0] RSP: 0018:ffffffff8a607cf8 EFLAGS: 00000296
[   11.911376][    C0] RAX: 000000000005d39b RBX: ffffffff8a61c600 RCX: ffffffff86eef307
[   11.911378][    C0] RDX: ffffffff8a61c600 RSI: ffffffff89e8b9a9 RDI: ffffffff89890860
[   11.911378][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   11.911379][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff14c0fa2
[   11.911380][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   11.911382][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   11.911384][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.911385][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   11.911387][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   11.911389][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   11.911390][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   11.911392][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   11.911395][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.911396][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911397][    C0]  do_idle (kernel/sched/idle.c:355)
[   11.911399][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   11.911401][    C0]  rest_init (init/main.c:727)
[   11.911403][    C0]  ? __cpuidle_text_end (??:?)
[   11.911405][    C0]  ? rest_init (init/main.c:727)
[   11.911407][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   11.911410][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   11.911413][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   11.911415][    C0]  start_kernel (init/main.c:1185)
[   11.911416][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   11.911419][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   11.911421][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   11.911440][    C0] softirqs last disabled at (381853): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.911441][    C0] Preemption disabled at:
| [   11.911442][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   11.911448][    C0] Tainted: [W]=WARN
[   11.911448][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.911449][    C0] Call Trace:
[   11.911449][    C0]  <IRQ>
[   11.911450][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.911452][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   11.911454][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.911461][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.911465][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911467][    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))
[   11.911469][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.911470][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.911473][    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)
[   11.911474][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.911477][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   11.911479][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.911482][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.911484][    C0]  ? mark_usage (kernel/locking/lockdep.c:4658)
[   11.911486][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5208)
[   11.911488][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.911490][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.911492][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911493][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.911496][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.911498][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.911501][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911502][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.911504][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.911507][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.911509][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.911511][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.911513][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.911515][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911516][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.911519][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.911520][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.911522][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.911523][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.911525][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   11.911527][    C0]  _printk (kernel/printk/printk.c:2504)
[   11.911529][    C0]  ? snapshot_read.cold (user.c:?)
[   11.911531][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:434 kernel/time/clocksource.c:664)
[   11.911533][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911535][    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))
[   11.911537][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911539][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911540][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   11.911543][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   11.911545][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   11.911546][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.911548][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911550][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911551][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   11.911553][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   11.911556][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   11.911558][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.911560][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.911563][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   11.911565][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   11.911567][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.911569][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911570][    C0]  handle_softirqs (kernel/softirq.c:645)
[   11.911572][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.911574][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   11.911576][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   11.911578][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   11.911580][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   11.911581][    C0]  </IRQ>
[   11.911582][    C0]  <TASK>
[   11.911582][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   11.911584][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   11.911586][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   11.911587][    C0] Code: 48 8b 3d 94 a2 72 02 e8 1f 00 00 00 48 2b 05 58 b3 b3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 66 2a 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 a2 72 02 	mov    0x272a294(%rip),%rdi        # 0x272a29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 b3 00 	sub    0xb3b358(%rip),%rax        # 0xb3b36b
  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 66 2a 00 	verw   0x2a6613(%rip)        # 0x2a663b
  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
[   11.911588][    C0] RSP: 0018:ffffffff8a607cf8 EFLAGS: 00000296
[   11.911589][    C0] RAX: 000000000005d39b RBX: ffffffff8a61c600 RCX: ffffffff86eef307
[   11.911590][    C0] RDX: ffffffff8a61c600 RSI: ffffffff89e8b9a9 RDI: ffffffff89890860
[   11.911591][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   11.911592][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff14c0fa2
[   11.911592][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   11.911594][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   11.911596][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.911598][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   11.911599][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   11.911601][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   11.911602][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   11.911604][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   11.911606][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.911607][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.911609][    C0]  do_idle (kernel/sched/idle.c:355)
[   11.911610][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   11.911612][    C0]  rest_init (init/main.c:727)
[   11.911614][    C0]  ? __cpuidle_text_end (??:?)
[   11.911616][    C0]  ? rest_init (init/main.c:727)
[   11.911618][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   11.911620][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   11.911622][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   11.911624][    C0]  start_kernel (init/main.c:1185)
[   11.911626][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   11.911628][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   11.911630][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   13.126842][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   13.126846][  T175] Preemption disabled at:
| [   13.126847][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.126867][  T175] Tainted: [W]=WARN
[   13.126868][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.126871][  T175] Call Trace:
[   13.126873][  T175]  <TASK>
[   13.126875][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.126881][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.126884][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.126889][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.126893][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.126897][  T175]  __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))
[   13.126902][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.126906][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.126912][  T175]  ? 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)
[   13.126915][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.126918][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   13.126922][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.126924][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.126928][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   13.126931][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   13.126935][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.126940][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.126943][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.126946][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.126948][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.126950][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.126954][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.126958][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.126961][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   13.126964][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.126968][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.126970][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.126973][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   13.126976][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.126980][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.126983][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   13.126988][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.126991][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.126994][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.126997][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.126999][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   13.127001][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.127004][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   13.127007][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.127010][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.127012][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.127015][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.127017][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   13.127020][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   13.127025][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.127030][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.127033][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.127036][  T175]  ? idr_get_free (??:?)
[   13.127040][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.127042][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   13.127045][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.127048][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.127050][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   13.127054][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.127057][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.127059][  T175]  new_sync_write (fs/read_write.c:595)
[   13.127064][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.127066][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   13.127069][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   13.127072][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.127075][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   13.127077][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   13.127081][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   13.127084][  T175]  vfs_write (fs/read_write.c:687)
[   13.127087][  T175]  ksys_write (fs/read_write.c:739)
[   13.127089][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.127092][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.127095][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.127098][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   13.127102][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.127106][  T175] RIP: 0033:0x7f1ba5ac2312
[   13.127110][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   13.127112][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.127117][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f1ba5ac2312
[   13.127120][  T175] RDX: 00000000000002ee RSI: 000055ece3e17f10 RDI: 000000000000000b
[   13.127121][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   13.127123][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   13.127124][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   14.582734][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   14.582737][  T175] Preemption disabled at:
| [   14.582738][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.582751][  T175] Tainted: [W]=WARN
[   14.582752][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.582755][  T175] Call Trace:
[   14.582756][  T175]  <TASK>
[   14.582758][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.582764][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.582766][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.582771][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.582775][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582779][  T175]  __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))
[   14.582784][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.582788][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.582793][  T175]  ? 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)
[   14.582795][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.582799][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   14.582802][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.582804][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.582808][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   14.582811][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   14.582814][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.582820][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.582822][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.582824][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582827][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582829][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582833][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.582836][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.582840][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.582843][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582846][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582849][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   14.582852][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.582855][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.582858][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   14.582868][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.582871][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582874][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.582877][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582878][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   14.582881][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.582883][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   14.582886][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.582889][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.582892][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.582895][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.582897][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   14.582900][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   14.582904][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.582908][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.582912][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.582915][  T175]  ? idr_get_free (??:?)
[   14.582918][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.582921][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   14.582923][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.582926][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.582929][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   14.582933][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582935][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.582937][  T175]  new_sync_write (fs/read_write.c:595)
[   14.582942][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.582944][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   14.582948][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   14.582950][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582953][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   14.582956][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   14.582959][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   14.582962][  T175]  vfs_write (fs/read_write.c:687)
[   14.582965][  T175]  ksys_write (fs/read_write.c:739)
[   14.582967][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.582970][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582973][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.582976][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   14.582980][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.582984][  T175] RIP: 0033:0x7f1ba5ac2312
[   14.582989][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   14.582991][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.582995][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f1ba5ac2312
[   14.582997][  T175] RDX: 00000000000002ee RSI: 000055ece3e17f10 RDI: 000000000000000b
[   14.582999][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   14.583000][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   14.583002][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   15.795727][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   15.795730][  T175] Preemption disabled at:
| [   15.795731][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.795742][  T175] Tainted: [W]=WARN
[   15.795743][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.795745][  T175] Call Trace:
[   15.795746][  T175]  <TASK>
[   15.795748][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.795753][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.795755][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.795759][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.795762][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795765][  T175]  __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))
[   15.795769][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   15.795773][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.795777][  T175]  ? 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)
[   15.795779][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.795782][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   15.795784][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.795786][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.795789][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   15.795791][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   15.795793][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.795797][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.795799][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   15.795801][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795802][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795803][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.795806][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.795809][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.795811][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   15.795813][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.795816][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795817][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.795819][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   15.795821][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.795823][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.795826][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   15.795829][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.795831][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.795833][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.795835][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795836][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   15.795837][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.795839][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   15.795841][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.795843][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.795844][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.795846][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.795847][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   15.795849][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   15.795853][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.795856][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.795858][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.795860][  T175]  ? idr_get_free (??:?)
[   15.795863][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.795865][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   15.795866][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.795873][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.795875][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.795876][  T175]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   15.795878][  T175]  ? cond_synchronize_rcu_full (kernel/rcu/tree.c:3626 (discriminator 1))
[   15.795880][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.795882][  T175]  new_sync_write (fs/read_write.c:595)
[   15.795885][  T175]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:715 (discriminator 19))
[   15.795887][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.795889][  T175]  ? trace_rcu_utilization (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3) ./include/trace/events/rcu.h:27 (discriminator 3))
[   15.795891][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795893][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   15.795894][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   15.795897][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   15.795898][  T175]  vfs_write (fs/read_write.c:687)
[   15.795900][  T175]  ksys_write (fs/read_write.c:739)
[   15.795902][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.795904][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795905][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.795906][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.795909][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.795912][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.795914][  T175] RIP: 0033:0x7f1ba5ac2312
[   15.795918][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   15.795919][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.795923][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f1ba5ac2312
[   15.795925][  T175] RDX: 00000000000002ee RSI: 000055ece3e17f10 RDI: 000000000000000b
[   15.795926][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   15.795927][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   15.795928][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   17.131975][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   17.131978][  T175] Preemption disabled at:
| [   17.131978][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.131989][  T175] Tainted: [W]=WARN
[   17.131990][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.131992][  T175] Call Trace:
[   17.131993][  T175]  <TASK>
[   17.131995][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.132000][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.132002][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.132006][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.132009][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132013][  T175]  __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))
[   17.132017][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   17.132020][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.132024][  T175]  ? 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)
[   17.132026][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.132029][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   17.132032][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.132034][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.132036][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   17.132038][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   17.132041][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.132044][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.132046][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   17.132048][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132049][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132051][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.132053][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.132056][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.132058][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   17.132060][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.132062][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132063][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.132065][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   17.132068][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.132070][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.132072][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   17.132076][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.132078][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.132079][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.132081][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132082][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   17.132084][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.132086][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   17.132088][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.132089][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.132091][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.132093][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.132094][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   17.132096][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   17.132099][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.132103][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.132105][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.132107][  T175]  ? idr_get_free (??:?)
[   17.132110][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.132111][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   17.132113][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.132115][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.132116][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   17.132119][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132120][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.132122][  T175]  new_sync_write (fs/read_write.c:595)
[   17.132125][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.132127][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   17.132129][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   17.132130][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132132][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   17.132134][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   17.132136][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.132138][  T175]  vfs_write (fs/read_write.c:687)
[   17.132139][  T175]  ksys_write (fs/read_write.c:739)
[   17.132142][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.132143][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.132145][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.132147][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   17.132150][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.132152][  T175] RIP: 0033:0x7f1ba5ac2312
[   17.132156][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   17.132158][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.132162][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f1ba5ac2312
[   17.132163][  T175] RDX: 00000000000002ee RSI: 000055ece3e17f10 RDI: 000000000000000b
[   17.132164][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   17.132165][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   17.132166][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   18.134597][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   18.134599][  T175] Preemption disabled at:
| [   18.134600][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.134611][  T175] Tainted: [W]=WARN
[   18.134612][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.134614][  T175] Call Trace:
[   18.134615][  T175]  <TASK>
[   18.134617][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.134622][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.134623][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.134627][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.134631][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134634][  T175]  kmem_cache_alloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5010 (discriminator 2))
[   18.134639][  T175]  ? 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)
[   18.134641][  T175]  ? __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   18.134645][  T175]  __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   18.134647][  T175]  ? kasan_quarantine_reduce (./include/linux/srcu.h:498 mm/kasan/quarantine.c:287)
[   18.134649][  T175]  __create_object (mm/kmemleak.c:801)
[   18.134651][  T175]  __kmalloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4696 mm/slub.c:4996 mm/slub.c:5413 mm/slub.c:5439)
[   18.134653][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.134655][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.134660][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.134662][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   18.134664][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.134666][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   18.134668][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   18.134671][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   18.134673][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.134676][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.134679][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.134680][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134682][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134683][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.134686][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.134689][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.134690][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   18.134693][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.134695][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134697][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.134699][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   18.134701][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.134704][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.134706][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   18.134709][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.134711][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.134713][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.134715][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134716][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   18.134718][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.134720][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   18.134721][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.134723][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.134725][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.134727][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.134728][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   18.134730][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   18.134734][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   18.134737][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   18.134739][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   18.134741][  T175]  ? idr_get_free (??:?)
[   18.134744][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   18.134746][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   18.134747][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   18.134749][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.134751][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   18.134754][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134755][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.134756][  T175]  new_sync_write (fs/read_write.c:595)
[   18.134759][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   18.134761][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   18.134763][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   18.134765][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134767][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   18.134769][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   18.134771][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   18.134773][  T175]  vfs_write (fs/read_write.c:687)
[   18.134775][  T175]  ksys_write (fs/read_write.c:739)
[   18.134777][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   18.134778][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.134780][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.134782][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   18.134785][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.134788][  T175] RIP: 0033:0x7f1ba5ac2312
[   18.134791][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   18.134793][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.134797][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f1ba5ac2312
[   18.134799][  T175] RDX: 0000000000000316 RSI: 000055ece3e17f10 RDI: 000000000000000b
[   18.134800][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   18.134801][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   18.134802][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   19.216179][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   19.216182][  T175] Preemption disabled at:
| [   19.216182][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.216193][  T175] Tainted: [W]=WARN
[   19.216194][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.216196][  T175] Call Trace:
[   19.216197][  T175]  <TASK>
[   19.216199][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.216204][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.216206][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.216210][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.216213][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216216][  T175]  __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))
[   19.216220][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.216223][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.216228][  T175]  ? 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)
[   19.216230][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.216232][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   19.216235][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.216237][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.216239][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   19.216241][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   19.216243][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.216248][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.216250][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.216252][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216253][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216254][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.216257][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.216260][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.216261][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   19.216263][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.216266][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216267][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.216269][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   19.216271][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.216274][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.216275][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   19.216279][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.216281][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.216283][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.216285][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216286][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   19.216287][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.216289][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   19.216291][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.216293][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.216294][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.216296][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.216297][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   19.216299][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   19.216302][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.216305][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.216308][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.216309][  T175]  ? idr_get_free (??:?)
[   19.216312][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.216314][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   19.216315][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.216317][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.216319][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   19.216322][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216323][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.216325][  T175]  new_sync_write (fs/read_write.c:595)
[   19.216328][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.216329][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   19.216331][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   19.216333][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216335][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   19.216336][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   19.216339][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   19.216340][  T175]  vfs_write (fs/read_write.c:687)
[   19.216342][  T175]  ksys_write (fs/read_write.c:739)
[   19.216344][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.216345][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.216347][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.216349][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   19.216352][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.216355][  T175] RIP: 0033:0x7f1ba5ac2312
[   19.216358][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   19.216360][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.216364][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f1ba5ac2312
[   19.216365][  T175] RDX: 0000000000000316 RSI: 000055ece3e17f10 RDI: 000000000000000b
[   19.216366][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   19.216367][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   19.216368][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   20.650873][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   20.650876][  T175] Preemption disabled at:
| [   20.650877][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.650888][  T175] Tainted: [W]=WARN
[   20.650889][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.650891][  T175] Call Trace:
[   20.650892][  T175]  <TASK>
[   20.650894][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.650900][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.650901][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.650910][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.650913][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.650916][  T175]  __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))
[   20.650921][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   20.650924][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.650928][  T175]  ? 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)
[   20.650930][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.650933][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   20.650935][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.650937][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   20.650940][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   20.650942][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   20.650944][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.650948][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.650950][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   20.650952][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.650953][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.650954][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.650957][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.650961][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.650964][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   20.650967][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.650970][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.650972][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.650975][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   20.650978][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.650980][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.650982][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   20.650986][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.650988][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.650990][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.650992][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.650993][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   20.650994][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.650996][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   20.650998][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.651000][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.651002][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.651004][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.651005][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   20.651007][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   20.651010][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   20.651014][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   20.651016][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   20.651018][  T175]  ? idr_get_free (??:?)
[   20.651021][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   20.651022][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   20.651024][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   20.651026][  T175]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   20.651027][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.651029][  T175]  ? update_cfs_rq_load_avg (kernel/sched/fair.c:5687)
[   20.651031][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.651033][  T175]  new_sync_write (fs/read_write.c:595)
[   20.651036][  T175]  ? update_load_avg (kernel/sched/fair.c:5864)
[   20.651038][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.651039][  T175]  ? xfd_validate_state (arch/x86/kernel/fpu/xstate.c:1497 (discriminator 1) arch/x86/kernel/fpu/xstate.c:1543 (discriminator 1))
[   20.651041][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.651043][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   20.651045][  T175]  ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369)
[   20.651047][  T175]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.651050][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.651052][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   20.651054][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   20.651056][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   20.651058][  T175]  vfs_write (fs/read_write.c:687)
[   20.651060][  T175]  ksys_write (fs/read_write.c:739)
[   20.651062][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   20.651063][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.651064][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.651066][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.651068][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   20.651072][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.651074][  T175] RIP: 0033:0x7f1ba5ac2312
[   20.651078][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   20.651080][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.651084][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f1ba5ac2312
[   20.651085][  T175] RDX: 0000000000000316 RSI: 000055ece3e17f10 RDI: 000000000000000b
[   20.651086][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   20.651087][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390
[   20.651088][  T175] R13: 000055ece3e17f10 R14: 000000000000000b R15: 00007f1ba58bd0d0
| [   22.089726][  T175] softirqs last disabled at (375946): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   22.089729][  T175] Preemption disabled at:
| [   22.089729][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.089741][  T175] Tainted: [W]=WARN
[   22.089741][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.089744][  T175] Call Trace:
[   22.089745][  T175]  <TASK>
[   22.089746][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.089752][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.089754][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.089758][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.089761][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089764][  T175]  __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))
[   22.089769][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   22.089771][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.089776][  T175]  ? 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)
[   22.089778][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.089780][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   22.089783][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.089785][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   22.089787][  T175]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   22.089789][  T175]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   22.089792][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.089796][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.089798][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   22.089800][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089801][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089802][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.089805][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.089807][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.089809][  T175]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   22.089812][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.089814][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089816][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.089818][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   22.089820][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.089822][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.089824][  T175]  ? __irq_work_queue_local (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 kernel/irq_work.c:107)
[   22.089828][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.089830][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.089832][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.089834][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089835][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   22.089836][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.089838][  T175]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   22.089840][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.089842][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.089843][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.089845][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.089846][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   22.089848][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   22.089852][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   22.089855][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   22.089858][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   22.089859][  T175]  ? idr_get_free (??:?)
[   22.089862][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   22.089864][  T175]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   22.089866][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   22.089868][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.089869][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   22.089872][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089874][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.089875][  T175]  new_sync_write (fs/read_write.c:595)
[   22.089878][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.089880][  T175]  ? vfs_getattr_nosec (fs/stat.c:213)
[   22.089882][  T175]  ? fput (./include/linux/preempt.h:500 (discriminator 1) ./include/linux/file_ref.h:150 (discriminator 1) fs/file_table.c:588 (discriminator 1))
[   22.089883][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089885][  T175]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   22.089887][  T175]  ? __fget_files (./include/linux/rcupdate.h:850 fs/file.c:1098)
[   22.089889][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   22.089891][  T175]  vfs_write (fs/read_write.c:687)
[   22.089893][  T175]  ksys_write (fs/read_write.c:739)
[   22.089894][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.089896][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.089898][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.089900][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   22.089903][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.089906][  T175] RIP: 0033:0x7f1ba5ac2312
[   22.089909][  T175] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   22.089911][  T175] RSP: 002b:00007ffc07689c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   22.089915][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f1ba5ac2312
[   22.089916][  T175] RDX: 0000000000000316 RSI: 000055ece3e17f10 RDI: 000000000000000b
[   22.089922][  T175] RBP: 00007ffc07689c30 R08: 0000000000000000 R09: 0000000000000000
[   22.089923][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1ba592f390


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
fpu_clone:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable
fpu_clone:vprintk_emit:dump_stack_lvl:kmem_cache_alloc_noprof:__alloc_object