======================================
| [    9.739922][  T175] softirqs last disabled at (43397): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.739925][  T175] Preemption disabled at:
| [    9.739925][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.739934][  T175] Tainted: [W]=WARN
[    9.739935][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.739937][  T175] Call Trace:
[    9.739938][  T175]  <TASK>
[    9.739940][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.739946][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.739948][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.739952][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.739957][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.739963][  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))
[    9.739965][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.739972][  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)
[    9.739975][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.739978][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[    9.739982][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.739985][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.739991][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.739997][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.740000][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.740004][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.740008][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.740012][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.740016][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.740018][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.740022][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.740027][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.740029][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.740034][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.740037][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.740040][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.740041][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.740045][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.740047][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.740050][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.740053][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.740055][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.740058][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.740060][  T175]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    9.740064][  T175]  ? 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
[    9.740068][  T175]  _printk (kernel/printk/printk.c:2504)
[    9.740071][  T175]  ? snapshot_read.cold (user.c:?)
[    9.740074][  T175]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    9.740077][  T175]  ? 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
[    9.740081][  T175]  ? 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)
[    9.740086][  T175] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    9.740089][  T175]  ? 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
[    9.740096][  T175]  ? 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
[    9.740099][  T175]  do_one_initcall (init/main.c:1357)
[    9.740102][  T175]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    9.740107][  T175]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    9.740109][  T175]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    9.740114][  T175]  do_init_module (kernel/module/main.c:3117)
[    9.740117][  T175]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.740121][  T175]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    9.740124][  T175]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    9.740128][  T175]  load_module (kernel/module/main.c:3593)
[    9.740135][  T175]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    9.740138][  T175]  ? __ia32_sys_fsconfig (??:?)
[    9.740141][  T175]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[    9.740147][  T175]  init_module_from_file (kernel/module/main.c:3790)
[    9.740150][  T175]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    9.740157][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.740161][  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)
[    9.740164][  T175]  idempotent_init_module (kernel/module/main.c:3802)
[    9.740167][  T175]  ? init_module_from_file (kernel/module/main.c:3791)
[    9.740173][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.740175][  T175]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.740181][  T175]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    9.740182][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.740186][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.740189][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.740191][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.740193][  T175] RIP: 0033:0x7f541c9ea37d
[    9.740197][  T175] 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
[    9.740199][  T175] RSP: 002b:00007ffd52709d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    9.740201][  T175] RAX: ffffffffffffffda RBX: 000055ac2be30700 RCX: 00007f541c9ea37d
[    9.740203][  T175] RDX: 0000000000000000 RSI: 000055ac151f4ffd RDI: 0000000000000005
[    9.740204][  T175] RBP: 00007ffd52709e20 R08: 0000000000000000 R09: 0000000000000000
[    9.740205][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ac151f4ffd
[    9.740205][  T175] R13: 000055ac2be30810 R14: 0000000000040000 R15: 0000000000000000
| [   11.229863][  T174] softirqs last disabled at (416463): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.229866][  T174] Preemption disabled at:
| [   11.229867][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.229876][  T174] Tainted: [W]=WARN
[   11.229877][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.229879][  T174] Call Trace:
[   11.229881][  T174]  <TASK>
[   11.229882][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.229889][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.229891][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.229896][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.229901][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.229912][  T174]  __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))
[   11.229915][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.229922][  T174]  ? 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)
[   11.229925][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.229929][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   11.229933][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.229935][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.229940][  T174]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.229945][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.229949][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.229951][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.229957][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.229961][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.229964][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.229969][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.229974][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.229979][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.229981][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.229986][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.229991][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.229993][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230000][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.230003][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.230005][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230007][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.230012][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.230014][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.230017][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.230021][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.230028][  T174]  _printk (kernel/printk/printk.c:2504)
[   11.230032][  T174]  ? snapshot_read.cold (user.c:?)
[   11.230034][  T174]  ? preempt_schedule_common (kernel/sched/core.c:7449)
[   11.230039][  T174]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   11.230048][  T174]  register_console (kernel/printk/printk.c:4212 (discriminator 7))
[   11.230051][  T174]  ? get_init_console_seq.constprop.0.isra.0 (kernel/printk/printk.c:4018)
[   11.230054][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230059][  T174] enabled_store (drivers/net/netconsole.c:1039) netconsole
[   11.230062][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.230066][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   11.230069][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   11.230071][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   11.230074][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   11.230079][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   11.230081][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   11.230084][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   11.230086][  T174]  new_sync_write (fs/read_write.c:595)
[   11.230090][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230093][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.230098][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.230100][  T174]  ? ksys_write (fs/read_write.c:739)
[   11.230107][  T174]  vfs_write (fs/read_write.c:687)
[   11.230112][  T174]  ksys_write (fs/read_write.c:739)
[   11.230114][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.230118][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230121][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.230124][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   11.230128][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.230130][  T174] RIP: 0033:0x7f89af9fd312
[   11.230134][  T174] 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)
[   11.230136][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.230139][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89af9fd312
[   11.230140][  T174] RDX: 0000000000000001 RSI: 000055a0ba3c4f10 RDI: 0000000000000010
[   11.230142][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   11.230143][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   11.230144][  T174] R13: 000055a0ba3c4f10 R14: 0000000000000010 R15: 00007f89af7f90d0
| [   12.248027][  T174] softirqs last disabled at (460914): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.248029][  T174] Preemption disabled at:
| [   12.248030][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.248039][  T174] Tainted: [W]=WARN
[   12.248040][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.248043][  T174] Call Trace:
[   12.248045][  T174]  <TASK>
[   12.248047][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.248053][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.248055][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.248060][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.248065][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.248070][  T174]  __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))
[   12.248073][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.248079][  T174]  ? 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)
[   12.248082][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.248086][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   12.248089][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.248091][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.248095][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.248099][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.248105][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.248108][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.248114][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.248117][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.248123][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.248127][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.248132][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.248134][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.248139][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.248144][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.248146][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.248152][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.248155][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.248157][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.248159][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.248164][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.248166][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.248169][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.248172][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.248175][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   12.248177][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   12.248182][  T174]  _printk (kernel/printk/printk.c:2504)
[   12.248186][  T174]  ? snapshot_read.cold (user.c:?)
[   12.248188][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.248192][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   12.248194][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.248198][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.248202][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   12.248206][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   12.248209][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.248214][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.248216][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   12.248219][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   12.248221][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   12.248226][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.248228][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   12.248231][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   12.248234][  T174]  new_sync_write (fs/read_write.c:595)
[   12.248237][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.248241][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.248244][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.248247][  T174]  ? ksys_write (fs/read_write.c:739)
[   12.248254][  T174]  vfs_write (fs/read_write.c:687)
[   12.248258][  T174]  ksys_write (fs/read_write.c:739)
[   12.248261][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.248264][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.248267][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.248270][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.248273][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.248276][  T174] RIP: 0033:0x7f89af9fd312
[   12.248280][  T174] 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)
[   12.248282][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.248285][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89af9fd312
[   12.248286][  T174] RDX: 0000000000000001 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   12.248287][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   12.248288][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   12.248289][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   13.250159][  T174] softirqs last disabled at (494792): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.250162][  T174] Preemption disabled at:
| [   13.250162][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.250171][  T174] Tainted: [W]=WARN
[   13.250173][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.250174][  T174] Call Trace:
[   13.250176][  T174]  <TASK>
[   13.250178][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.250184][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.250186][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.250191][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.250196][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.250201][  T174]  __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))
[   13.250204][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.250210][  T174]  ? 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)
[   13.250213][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.250217][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   13.250220][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.250222][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.250227][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.250230][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.250236][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.250239][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.250245][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.250248][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.250254][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.250258][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.250263][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.250265][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.250270][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.250275][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.250277][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.250283][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.250286][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.250289][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.250291][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.250295][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.250297][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.250300][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.250304][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.250306][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   13.250308][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   13.250313][  T174]  _printk (kernel/printk/printk.c:2504)
[   13.250317][  T174]  ? snapshot_read.cold (user.c:?)
[   13.250319][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.250323][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   13.250325][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.250329][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.250333][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   13.250337][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   13.250340][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.250347][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   13.250350][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   13.250352][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   13.250355][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   13.250360][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   13.250362][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   13.250364][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   13.250367][  T174]  new_sync_write (fs/read_write.c:595)
[   13.250371][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.250374][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.250378][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.250380][  T174]  ? ksys_write (fs/read_write.c:739)
[   13.250387][  T174]  vfs_write (fs/read_write.c:687)
[   13.250391][  T174]  ksys_write (fs/read_write.c:739)
[   13.250394][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.250397][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.250401][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.250404][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.250407][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.250409][  T174] RIP: 0033:0x7f89af9fd312
[   13.250413][  T174] 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)
[   13.250415][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.250418][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89af9fd312
[   13.250419][  T174] RDX: 0000000000000001 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   13.250420][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   13.250421][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   13.250422][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   14.257835][  T174] softirqs last disabled at (531630): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.257837][  T174] Preemption disabled at:
| [   14.257838][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.257847][  T174] Tainted: [W]=WARN
[   14.257849][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.257850][  T174] Call Trace:
[   14.257852][  T174]  <TASK>
[   14.257854][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.257861][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.257863][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.257868][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.257872][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.257878][  T174]  __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))
[   14.257881][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.257888][  T174]  ? 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)
[   14.257891][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.257895][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   14.257899][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.257901][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.257905][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.257909][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.257915][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.257918][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.257929][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.257933][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.257939][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.257943][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.257949][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.257951][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.257956][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.257961][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.257963][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.257970][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.257973][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.257975][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.257977][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.257982][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.257984][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.257987][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.257991][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.257994][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   14.257996][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   14.258001][  T174]  _printk (kernel/printk/printk.c:2504)
[   14.258005][  T174]  ? snapshot_read.cold (user.c:?)
[   14.258008][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.258013][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   14.258015][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   14.258019][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   14.258022][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   14.258027][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   14.258030][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.258035][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   14.258037][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   14.258040][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   14.258043][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   14.258048][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   14.258050][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   14.258053][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   14.258056][  T174]  new_sync_write (fs/read_write.c:595)
[   14.258061][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.258064][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.258068][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.258070][  T174]  ? ksys_write (fs/read_write.c:739)
[   14.258078][  T174]  vfs_write (fs/read_write.c:687)
[   14.258082][  T174]  ksys_write (fs/read_write.c:739)
[   14.258085][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.258088][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.258092][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.258095][  T174]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   14.258098][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.258101][  T174] RIP: 0033:0x7f89af9fd312
[   14.258105][  T174] 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)
[   14.258107][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.258110][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89af9fd312
[   14.258112][  T174] RDX: 0000000000000001 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   14.258113][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   14.258114][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   14.258115][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   15.279140][  T174] softirqs last disabled at (567661): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.279143][  T174] Preemption disabled at:
| [   15.279144][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.279154][  T174] Tainted: [W]=WARN
[   15.279155][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.279157][  T174] Call Trace:
[   15.279159][  T174]  <TASK>
[   15.279160][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.279167][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.279169][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.279173][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.279178][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.279184][  T174]  __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))
[   15.279187][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.279193][  T174]  ? 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)
[   15.279196][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.279200][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   15.279203][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.279205][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.279209][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.279213][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.279218][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.279222][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.279224][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.279229][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.279232][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.279235][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.279239][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.279243][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.279248][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.279250][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.279254][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.279258][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.279261][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.279266][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.279269][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.279271][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.279273][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.279277][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.279279][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.279282][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.279285][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.279288][  T174]  ? _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)
[   15.279294][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.279298][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.279302][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.279305][  T174]  ? idr_get_free (??:?)
[   15.279309][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.279311][  T174]  ? _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)
[   15.279314][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.279317][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.279319][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   15.279323][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.279326][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.279328][  T174]  new_sync_write (fs/read_write.c:595)
[   15.279333][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.279338][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.279343][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   15.279349][  T174]  vfs_write (fs/read_write.c:687)
[   15.279353][  T174]  ksys_write (fs/read_write.c:739)
[   15.279356][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.279358][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.279362][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.279364][  T174]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   15.279367][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.279369][  T174] RIP: 0033:0x7f89af9fd312
[   15.279374][  T174] 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)
[   15.279376][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.279379][  T174] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f89af9fd312
[   15.279381][  T174] RDX: 00000000000002ee RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   15.279382][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   15.279383][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   15.279384][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   16.292198][  T174] softirqs last disabled at (601740): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   16.292200][  T174] Preemption disabled at:
| [   16.292201][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.292210][  T174] Tainted: [W]=WARN
[   16.292211][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.292213][  T174] Call Trace:
[   16.292215][  T174]  <TASK>
[   16.292217][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.292223][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.292225][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.292230][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.292234][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.292240][  T174]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   16.292243][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.292250][  T174]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   16.292253][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.292257][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   16.292260][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.292262][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.292267][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.292270][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.292276][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.292279][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292285][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.292288][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292294][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.292298][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.292304][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292306][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.292310][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.292315][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.292317][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292323][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.292327][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.292329][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292331][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.292335][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.292337][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.292341][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.292348][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.292350][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   16.292352][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   16.292357][  T174]  _printk (kernel/printk/printk.c:2504)
[   16.292361][  T174]  ? snapshot_read.cold (user.c:?)
[   16.292363][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.292368][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   16.292370][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.292374][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   16.292377][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   16.292382][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   16.292385][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.292389][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.292392][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   16.292395][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   16.292398][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   16.292402][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.292404][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   16.292407][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   16.292410][  T174]  new_sync_write (fs/read_write.c:595)
[   16.292413][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292417][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   16.292421][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.292423][  T174]  ? ksys_write (fs/read_write.c:739)
[   16.292430][  T174]  vfs_write (fs/read_write.c:687)
[   16.292434][  T174]  ksys_write (fs/read_write.c:739)
[   16.292437][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   16.292440][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292443][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.292446][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   16.292451][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.292453][  T174] RIP: 0033:0x7f89af9fd312
[   16.292457][  T174] 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)
[   16.292459][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   16.292462][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f89af9fd312
[   16.292464][  T174] RDX: 0000000000000001 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   16.292465][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   16.292466][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   16.292467][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   17.646927][  T174] softirqs last disabled at (629291): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.646930][  T174] Preemption disabled at:
| [   17.646931][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.646941][  T174] Tainted: [W]=WARN
[   17.646946][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.646948][  T174] Call Trace:
[   17.646950][  T174]  <TASK>
[   17.646952][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.646959][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.646960][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.646966][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.646970][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.646976][  T174]  __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))
[   17.646979][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.646986][  T174]  ? 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)
[   17.646989][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.646993][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   17.646996][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.646998][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.647002][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.647006][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.647011][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.647015][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.647017][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.647022][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.647026][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.647028][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.647033][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.647037][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.647042][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.647044][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.647048][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.647053][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.647055][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.647060][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.647064][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.647066][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.647068][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.647072][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.647074][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.647077][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.647080][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.647083][  T174]  ? _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)
[   17.647089][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.647093][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.647097][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.647100][  T174]  ? idr_get_free (??:?)
[   17.647103][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.647106][  T174]  ? _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)
[   17.647109][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.647112][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.647114][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   17.647118][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.647121][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.647124][  T174]  new_sync_write (fs/read_write.c:595)
[   17.647129][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.647134][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.647139][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.647143][  T174]  vfs_write (fs/read_write.c:687)
[   17.647147][  T174]  ksys_write (fs/read_write.c:739)
[   17.647150][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.647152][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.647156][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.647159][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   17.647162][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.647164][  T174] RIP: 0033:0x7f89af9fd312
[   17.647169][  T174] 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)
[   17.647171][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.647174][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f89af9fd312
[   17.647176][  T174] RDX: 0000000000000316 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   17.647177][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   17.647178][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   17.647179][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   19.063072][  T174] softirqs last disabled at (673981): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.063075][  T174] Preemption disabled at:
| [   19.063076][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.063086][  T174] Tainted: [W]=WARN
[   19.063087][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.063089][  T174] Call Trace:
[   19.063091][  T174]  <TASK>
[   19.063093][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.063099][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.063101][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.063106][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.063111][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.063117][  T174]  __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))
[   19.063119][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.063126][  T174]  ? 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)
[   19.063130][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.063134][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   19.063137][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.063139][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.063143][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.063148][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.063152][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.063156][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.063158][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.063163][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.063167][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.063169][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.063173][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.063178][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.063183][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.063185][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.063189][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.063194][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.063196][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.063202][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.063205][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.063207][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.063209][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.063213][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.063215][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.063219][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.063222][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.063225][  T174]  ? _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)
[   19.063231][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.063235][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.063239][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.063242][  T174]  ? idr_get_free (??:?)
[   19.063246][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.063249][  T174]  ? _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)
[   19.063251][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.063254][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.063256][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   19.063261][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.063264][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.063266][  T174]  new_sync_write (fs/read_write.c:595)
[   19.063272][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.063276][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.063282][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   19.063286][  T174]  vfs_write (fs/read_write.c:687)
[   19.063290][  T174]  ksys_write (fs/read_write.c:739)
[   19.063293][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.063296][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.063299][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.063302][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   19.063305][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.063308][  T174] RIP: 0033:0x7f89af9fd312
[   19.063312][  T174] 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)
[   19.063314][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.063318][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f89af9fd312
[   19.063319][  T174] RDX: 0000000000000316 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   19.063320][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   19.063321][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   19.063322][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   20.113870][  T174] softirqs last disabled at (791371): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.113873][  T174] Preemption disabled at:
| [   20.113874][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.113884][  T174] Tainted: [W]=WARN
[   20.113885][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.113887][  T174] Call Trace:
[   20.113889][  T174]  <TASK>
[   20.113890][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.113896][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.113898][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.113903][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.113908][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.113913][  T174]  __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))
[   20.113916][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.113923][  T174]  ? 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)
[   20.113926][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.113930][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   20.113934][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.113936][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   20.113939][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.113943][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.113948][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.113952][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.113953][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.113964][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.113967][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.113970][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.113974][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.113978][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.113983][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.113985][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.113989][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.113994][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.113996][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.114001][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.114004][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.114007][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.114009][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.114013][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.114014][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.114018][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.114021][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.114024][  T174]  ? _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)
[   20.114029][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   20.114034][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   20.114038][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   20.114040][  T174]  ? idr_get_free (??:?)
[   20.114044][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   20.114047][  T174]  ? _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)
[   20.114050][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   20.114053][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.114057][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.114059][  T174]  new_sync_write (fs/read_write.c:595)
[   20.114065][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   20.114069][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.114074][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   20.114078][  T174]  vfs_write (fs/read_write.c:687)
[   20.114082][  T174]  ksys_write (fs/read_write.c:739)
[   20.114085][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   20.114087][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.114089][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.114092][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.114095][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   20.114098][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.114101][  T174] RIP: 0033:0x7f89af9fd312
[   20.114105][  T174] 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)
[   20.114107][  T174] RSP: 002b:00007fffb1b98788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.114110][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f89af9fd312
[   20.114112][  T174] RDX: 0000000000000316 RSI: 000055a0ba3c4f10 RDI: 000000000000000b
[   20.114113][  T174] RBP: 00007fffb1b987b0 R08: 0000000000000000 R09: 0000000000000000
[   20.114114][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f89af86a390
[   20.114114][  T174] R13: 000055a0ba3c4f10 R14: 000000000000000b R15: 00007f89af7f90d0
| [   24.041856][  T251] softirqs last disabled at (699363): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.041858][  T251] Preemption disabled at:
| [   24.041859][  T251] 0x0
| [   24.041870][  T251] Tainted: [W]=WARN
[   24.041871][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.041873][  T251] Call Trace:
[   24.041875][  T251]  <TASK>
[   24.041876][  T251]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.041883][  T251]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.041888][  T251]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.041892][  T251]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.041898][  T251]  __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))
[   24.041901][  T251]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.041908][  T251]  ? 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)
[   24.041911][  T251]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.041915][  T251]  put_chars (drivers/char/virtio_console.c:1176)
[   24.041918][  T251]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.041920][  T251]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   24.041924][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.041928][  T251]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.041933][  T251]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.041936][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.041938][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.041943][  T251]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.041947][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.041949][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.041953][  T251]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.041957][  T251]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.041962][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.041964][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.041968][  T251]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.041973][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.041975][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.041986][  T251]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.041989][  T251]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.041991][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.041993][  T251]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.041997][  T251]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.041999][  T251]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.042003][  T251]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.042006][  T251]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.042009][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.042013][  T251]  _printk (kernel/printk/printk.c:2504)
[   24.042017][  T251]  ? snapshot_read.cold (user.c:?)
[   24.042020][  T251]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   24.042023][  T251]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.042027][  T251]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   24.042030][  T251]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   24.042035][  T251]  ? exit_notify (kernel/exit.c:780)
[   24.042036][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.042039][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.042044][  T251]  do_group_exit (kernel/exit.c:1151)
[   24.042047][  T251]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   24.042049][  T251]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   24.042052][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.042056][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.042060][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.042062][  T251] RIP: 0033:0x7f856bf141b8
[   24.042065][  T251] Code: Unable to access opcode bytes at 0x7f856bf1418e.

Code starting with the faulting instruction
===========================================
[   24.042066][  T251] RSP: 002b:00007fff44452b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   24.042069][  T251] RAX: ffffffffffffffda RBX: 00007f856c044f88 RCX: 00007f856bf141b8
[   24.042070][  T251] RDX: 00007f856aaf71c8 RSI: fffffffffffffc38 RDI: 0000000000000000
[   24.042071][  T251] RBP: 00007fff44452bc0 R08: 0000000000000000 R09: 0000000000000420
[   24.042072][  T251] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000c05


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