======================================
| [    9.169568][  T172] softirqs last disabled at (34947): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.169571][  T172] Preemption disabled at:
| [    9.169572][  T172] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.169580][  T172] Tainted: [W]=WARN
[    9.169581][  T172] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.169582][  T172] Call Trace:
[    9.169584][  T172]  <TASK>
[    9.169585][  T172]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.169591][  T172]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.169592][  T172]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.169597][  T172]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.169600][  T172]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.169605][  T172]  __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))
[    9.169607][  T172]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.169612][  T172]  ? 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)
[    9.169615][  T172]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.169618][  T172]  put_chars (drivers/char/virtio_console.c:1176)
[    9.169620][  T172]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.169623][  T172]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.169628][  T172]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.169634][  T172]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.169636][  T172]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.169640][  T172]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.169643][  T172]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.169647][  T172]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.169651][  T172]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.169653][  T172]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.169656][  T172]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.169660][  T172]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.169661][  T172]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.169666][  T172]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.169669][  T172]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.169670][  T172]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.169672][  T172]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.169675][  T172]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.169677][  T172]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.169680][  T172]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.169683][  T172]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.169685][  T172]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.169688][  T172]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.169690][  T172]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    9.169695][  T172]  ? 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
[    9.169699][  T172]  _printk (kernel/printk/printk.c:2504)
[    9.169703][  T172]  ? snapshot_read.cold (user.c:?)
[    9.169705][  T172]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    9.169709][  T172]  ? 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
[    9.169712][  T172]  ? 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)
[    9.169717][  T172] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    9.169720][  T172]  ? 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
[    9.169727][  T172]  ? 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
[    9.169729][  T172]  do_one_initcall (init/main.c:1357)
[    9.169733][  T172]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    9.169738][  T172]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    9.169740][  T172]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    9.169746][  T172]  do_init_module (kernel/module/main.c:3117)
[    9.169749][  T172]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.169753][  T172]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    9.169756][  T172]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    9.169760][  T172]  load_module (kernel/module/main.c:3593)
[    9.169766][  T172]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    9.169770][  T172]  ? __ia32_sys_fsconfig (??:?)
[    9.169773][  T172]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    9.169776][  T172]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.169778][  T172]  ? backing_file_read_iter (fs/backing-file.c:211)
[    9.169782][  T172]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.169786][  T172]  init_module_from_file (kernel/module/main.c:3790)
[    9.169788][  T172]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    9.169796][  T172]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.169799][  T172]  ? 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)
[    9.169802][  T172]  idempotent_init_module (kernel/module/main.c:3802)
[    9.169806][  T172]  ? init_module_from_file (kernel/module/main.c:3791)
[    9.169812][  T172]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.169814][  T172]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.169819][  T172]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    9.169821][  T172]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.169825][  T172]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.169827][  T172]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.169830][  T172]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.169832][  T172] RIP: 0033:0x7f94adeab37d
[    9.169836][  T172] 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
[    9.169838][  T172] RSP: 002b:00007fff52c341f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    9.169840][  T172] RAX: ffffffffffffffda RBX: 000055945aa78700 RCX: 00007f94adeab37d
[    9.169842][  T172] RDX: 0000000000000000 RSI: 0000559441710ffd RDI: 0000000000000005
[    9.169843][  T172] RBP: 00007fff52c34290 R08: 0000000000000000 R09: 0000000000000000
[    9.169844][  T172] R10: 0000000000000000 R11: 0000000000000246 R12: 0000559441710ffd
[    9.169845][  T172] R13: 000055945aa78810 R14: 0000000000040000 R15: 0000000000000000
| [   12.434576][  T159] softirqs last disabled at (125368): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   12.434579][  T159] Preemption disabled at:
| [   12.434579][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.434588][  T159] Tainted: [W]=WARN
[   12.434589][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.434591][  T159] Call Trace:
[   12.434593][  T159]  <TASK>
[   12.434594][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.434599][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.434601][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.434606][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.434609][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.434614][  T159]  __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))
[   12.434617][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.434622][  T159]  ? 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)
[   12.434624][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.434628][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   12.434630][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.434632][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.434635][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.434638][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.434642][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.434645][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.434646][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.434650][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.434653][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.434656][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.434660][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.434663][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.434667][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.434669][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.434673][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.434677][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.434678][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.434683][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.434686][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.434687][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.434689][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.434692][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.434694][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.434697][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.434700][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.434703][  T159]  ? _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)
[   12.434709][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.434713][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.434716][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.434718][  T159]  ? idr_get_free (??:?)
[   12.434722][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.434725][  T159]  ? _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)
[   12.434727][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.434730][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.434732][  T159]  ? handle_pte_fault (mm/memory.c:6582)
[   12.434736][  T159]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   12.434739][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.434741][  T159]  new_sync_write (fs/read_write.c:595)
[   12.434745][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.434747][  T159]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.434755][  T159]  vfs_write (fs/read_write.c:687)
[   12.434759][  T159]  ksys_write (fs/read_write.c:739)
[   12.434762][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.434764][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.434766][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.434769][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.434771][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.434774][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.434777][  T159] RIP: 0033:0x7f14619b954e
[   12.434781][  T159] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.434783][  T159] RSP: 002b:00007ffe5586a030 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.434786][  T159] RAX: ffffffffffffffda RBX: 00007f1461b3a580 RCX: 00007f14619b954e
[   12.434787][  T159] RDX: 0000000000000023 RSI: 0000559a62dbd790 RDI: 0000000000000001
[   12.434788][  T159] RBP: 00007ffe5586a040 R08: 0000000000000000 R09: 0000000000000000
[   12.434789][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   12.434790][  T159] R13: 0000000000000023 R14: 0000559a62dbd790 R15: 0000000000000000
| [   14.096287][  T159] softirqs last disabled at (159931): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.096290][  T159] Preemption disabled at:
| [   14.096291][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.096300][  T159] Tainted: [W]=WARN
[   14.096301][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.096303][  T159] Call Trace:
[   14.096304][  T159]  <TASK>
[   14.096306][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.096311][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.096313][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.096318][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.096322][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.096326][  T159]  __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))
[   14.096329][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.096334][  T159]  ? 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)
[   14.096337][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.096340][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   14.096343][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.096344][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.096347][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.096350][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.096354][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.096357][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.096358][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.096362][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.096365][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.096368][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.096372][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.096376][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.096380][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.096382][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.096385][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.096389][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.096391][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.096396][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.096398][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.096400][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.096402][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.096405][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.096407][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.096410][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.096413][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.096416][  T159]  ? _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)
[   14.096422][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.096426][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.096429][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.096431][  T159]  ? idr_get_free (??:?)
[   14.096435][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.096438][  T159]  ? _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)
[   14.096440][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.096443][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.096445][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.096447][  T159]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   14.096451][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.096454][  T159]  new_sync_write (fs/read_write.c:595)
[   14.096459][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.096460][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.096468][  T159]  vfs_write (fs/read_write.c:687)
[   14.096472][  T159]  ksys_write (fs/read_write.c:739)
[   14.096474][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.096476][  T159]  ? 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)
[   14.096479][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.096482][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.096484][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.096487][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.096490][  T159] RIP: 0033:0x7f14619b954e
[   14.096494][  T159] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.096496][  T159] RSP: 002b:00007ffe5586a030 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   14.096499][  T159] RAX: ffffffffffffffda RBX: 00007f1461b3a580 RCX: 00007f14619b954e
[   14.096500][  T159] RDX: 0000000000000023 RSI: 0000559a62dbd790 RDI: 0000000000000001
[   14.096501][  T159] RBP: 00007ffe5586a040 R08: 0000000000000000 R09: 0000000000000000
[   14.096502][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   14.096503][  T159] R13: 0000000000000023 R14: 0000559a62dbd790 R15: 0000000000000000
| [   15.705894][  T159] softirqs last disabled at (194174): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   15.705896][  T159] Preemption disabled at:
| [   15.705897][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.705906][  T159] Tainted: [W]=WARN
[   15.705907][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.705909][  T159] Call Trace:
[   15.705910][  T159]  <TASK>
[   15.705912][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.705917][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.705919][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.705923][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.705927][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.705932][  T159]  __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))
[   15.705934][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.705940][  T159]  ? 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)
[   15.705942][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.705945][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   15.705948][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.705950][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.705953][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.705956][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.705960][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.705963][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.705964][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.705968][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.705971][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.705974][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.705978][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.705982][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.705986][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.705988][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.705992][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.705995][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.705997][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.706002][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.706004][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.706006][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.706008][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.706011][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.706013][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.706016][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.706019][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.706022][  T159]  ? _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)
[   15.706028][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.706032][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.706036][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.706037][  T159]  ? idr_get_free (??:?)
[   15.706041][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.706044][  T159]  ? _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)
[   15.706046][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.706049][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.706051][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.706053][  T159]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.706058][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.706060][  T159]  new_sync_write (fs/read_write.c:595)
[   15.706065][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.706066][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.706074][  T159]  vfs_write (fs/read_write.c:687)
[   15.706078][  T159]  ksys_write (fs/read_write.c:739)
[   15.706081][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.706083][  T159]  ? 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)
[   15.706085][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.706089][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.706091][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.706094][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.706097][  T159] RIP: 0033:0x7f14619b954e
[   15.706101][  T159] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.706103][  T159] RSP: 002b:00007ffe5586a030 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.706106][  T159] RAX: ffffffffffffffda RBX: 00007f1461b3a580 RCX: 00007f14619b954e
[   15.706107][  T159] RDX: 0000000000000023 RSI: 0000559a62dbd790 RDI: 0000000000000001
[   15.706108][  T159] RBP: 00007ffe5586a040 R08: 0000000000000000 R09: 0000000000000000
[   15.706109][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   15.706110][  T159] R13: 0000000000000023 R14: 0000559a62dbd790 R15: 0000000000000000
| [   17.335818][  T159] softirqs last disabled at (223880): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   17.335821][  T159] Preemption disabled at:
| [   17.335822][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.335834][  T159] Tainted: [W]=WARN
[   17.335836][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.335838][  T159] Call Trace:
[   17.335840][  T159]  <TASK>
[   17.335843][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.335849][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.335853][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.335859][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.335864][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.335871][  T159]  __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))
[   17.335874][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.335883][  T159]  ? 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)
[   17.335887][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.335892][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   17.335897][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.335899][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.335904][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.335908][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.335915][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.335919][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.335921][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.335929][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.335935][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.335939][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.335946][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.335952][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.335959][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.335962][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.335969][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.335975][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.335978][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.335987][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.335991][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.335993][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.335997][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.336003][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.336005][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.336010][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.336016][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.336021][  T159]  ? _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)
[   17.336029][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.336035][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.336041][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.336044][  T159]  ? idr_get_free (??:?)
[   17.336049][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.336054][  T159]  ? _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)
[   17.336058][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.336063][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.336065][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.336069][  T159]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   17.336075][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.336079][  T159]  new_sync_write (fs/read_write.c:595)
[   17.336086][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.336089][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.336103][  T159]  vfs_write (fs/read_write.c:687)
[   17.336110][  T159]  ksys_write (fs/read_write.c:739)
[   17.336115][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.336123][  T159]  ? 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)
[   17.336127][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.336133][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.336136][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.336141][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.336144][  T159] RIP: 0033:0x7f14619b954e
[   17.336149][  T159] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.336152][  T159] RSP: 002b:00007ffe5586a030 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   17.336157][  T159] RAX: ffffffffffffffda RBX: 00007f1461b3a580 RCX: 00007f14619b954e
[   17.336159][  T159] RDX: 0000000000000023 RSI: 0000559a62dbd790 RDI: 0000000000000001
[   17.336161][  T159] RBP: 00007ffe5586a040 R08: 0000000000000000 R09: 0000000000000000
[   17.336163][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   17.336164][  T159] R13: 0000000000000023 R14: 0000559a62dbd790 R15: 0000000000000000
| [   23.528226][  T724] softirqs last disabled at (2118): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   23.528228][  T724] Preemption disabled at:
| [   23.528229][  T724] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.528244][  T724] Tainted: [W]=WARN
[   23.528245][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.528247][  T724] Call Trace:
[   23.528249][  T724]  <TASK>
[   23.528250][  T724]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.528255][  T724]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.528257][  T724]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.528262][  T724]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.528266][  T724]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.528270][  T724]  __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))
[   23.528272][  T724]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.528278][  T724]  ? 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)
[   23.528281][  T724]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.528284][  T724]  put_chars (drivers/char/virtio_console.c:1176)
[   23.528286][  T724]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.528288][  T724]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   23.528291][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.528294][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.528298][  T724]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.528301][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.528302][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.528306][  T724]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.528309][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.528313][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.528316][  T724]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.528320][  T724]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.528324][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.528326][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.528330][  T724]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.528334][  T724]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.528335][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.528340][  T724]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.528342][  T724]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.528344][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.528346][  T724]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.528349][  T724]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.528351][  T724]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.528354][  T724]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.528357][  T724]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.528360][  T724]  ? _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)
[   23.528366][  T724]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   23.528370][  T724]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   23.528374][  T724]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   23.528375][  T724]  ? idr_get_free (??:?)
[   23.528379][  T724]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   23.528382][  T724]  ? _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)
[   23.528385][  T724]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   23.528387][  T724]  ? vprintk_default (kernel/printk/printk.c:2494)
[   23.528389][  T724]  ? handle_pte_fault (mm/memory.c:6558)
[   23.528394][  T724]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   23.528396][  T724]  ? vprintk_default (kernel/printk/printk.c:2494)
[   23.528399][  T724]  new_sync_write (fs/read_write.c:595)
[   23.528403][  T724]  ? new_sync_read (./include/linux/ioprio.h:41)
[   23.528405][  T724]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   23.528413][  T724]  vfs_write (fs/read_write.c:687)
[   23.528417][  T724]  ksys_write (fs/read_write.c:739)
[   23.528420][  T724]  ? __ia32_sys_read (fs/read_write.c:723)
[   23.528422][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.528424][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.528428][  T724]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.528430][  T724]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.528433][  T724]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.528435][  T724] RIP: 0033:0x7f14619b954e
[   23.528439][  T724] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.528441][  T724] RSP: 002b:00007ffe55869800 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   23.528445][  T724] RAX: ffffffffffffffda RBX: 00007f1461b3a580 RCX: 00007f14619b954e
[   23.528446][  T724] RDX: 0000000000000025 RSI: 0000559a62dbd790 RDI: 0000000000000001
[   23.528447][  T724] RBP: 00007ffe55869810 R08: 0000000000000000 R09: 0000000000000000
[   23.528448][  T724] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
restore_fpregs_from_user:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars