======================================
| [   10.751352][  T175] softirqs last disabled at (34071): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.751354][  T175] Preemption disabled at:
| [   10.751355][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.751364][  T175] Tainted: [W]=WARN
[   10.751365][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.751367][  T175] Call Trace:
[   10.751369][  T175]  <TASK>
[   10.751370][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.751376][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.751378][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.751383][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.751388][  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)
[   10.751394][  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))
[   10.751398][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.751407][  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)
[   10.751410][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.751414][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   10.751417][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.751421][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.751426][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.751433][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.751436][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.751439][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.751444][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.751448][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.751453][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.751455][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.751459][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.751463][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.751466][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.751471][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.751474][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.751476][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.751478][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.751482][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.751484][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.751487][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.751491][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.751492][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.751495][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.751497][  T175]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.751502][  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
[   10.751506][  T175]  _printk (kernel/printk/printk.c:2504)
[   10.751510][  T175]  ? snapshot_read.cold (user.c:?)
[   10.751513][  T175]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.751516][  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
[   10.751520][  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)
[   10.751524][  T175] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.751528][  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
[   10.751535][  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
[   10.751537][  T175]  do_one_initcall (init/main.c:1357)
[   10.751540][  T175]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.751545][  T175]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.751548][  T175]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.751553][  T175]  do_init_module (kernel/module/main.c:3117)
[   10.751556][  T175]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.751560][  T175]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.751563][  T175]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.751567][  T175]  load_module (kernel/module/main.c:3593)
[   10.751574][  T175]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.751578][  T175]  ? __ia32_sys_fsconfig (??:?)
[   10.751581][  T175]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   10.751586][  T175]  init_module_from_file (kernel/module/main.c:3790)
[   10.751589][  T175]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.751597][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.751601][  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)
[   10.751604][  T175]  idempotent_init_module (kernel/module/main.c:3802)
[   10.751607][  T175]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.751613][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.751615][  T175]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.751623][  T175]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.751624][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.751628][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.751631][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.751634][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.751637][  T175] RIP: 0033:0x7fad68f5937d
[   10.751640][  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
[   10.751642][  T175] RSP: 002b:00007ffe9299d608 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.751645][  T175] RAX: ffffffffffffffda RBX: 0000555b06bb9700 RCX: 00007fad68f5937d
[   10.751646][  T175] RDX: 0000000000000000 RSI: 0000555acb948ffd RDI: 0000000000000005
[   10.751647][  T175] RBP: 00007ffe9299d6a0 R08: 0000000000000000 R09: 0000000000000000
[   10.751648][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555acb948ffd
[   10.751649][  T175] R13: 0000555b06bb9810 R14: 0000000000040000 R15: 0000000000000000
| [   12.561982][  T174] softirqs last disabled at (393461): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.561985][  T174] Preemption disabled at:
| [   12.561986][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.561995][  T174] Tainted: [W]=WARN
[   12.561996][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.561998][  T174] Call Trace:
[   12.562000][  T174]  <TASK>
[   12.562002][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.562008][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.562010][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.562015][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.562020][  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)
[   12.562025][  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))
[   12.562028][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.562035][  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)
[   12.562038][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.562042][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   12.562046][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.562048][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.562052][  T174]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.562058][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.562061][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.562063][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.562068][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.562072][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.562076][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.562080][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.562085][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.562091][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.562093][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.562098][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.562102][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.562105][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.562111][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.562114][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.562116][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.562119][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.562123][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.562125][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.562128][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.562132][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.562138][  T174]  _printk (kernel/printk/printk.c:2504)
[   12.562142][  T174]  ? snapshot_read.cold (user.c:?)
[   12.562146][  T174]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.562150][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.562156][  T174]  register_console (kernel/printk/printk.c:4212 (discriminator 7))
[   12.562159][  T174]  ? get_init_console_seq.constprop.0.isra.0 (kernel/printk/printk.c:4018)
[   12.562162][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.562167][  T174] enabled_store (drivers/net/netconsole.c:1039) netconsole
[   12.562170][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.562174][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.562176][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   12.562179][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   12.562182][  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))
[   12.562187][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.562189][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   12.562191][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   12.562194][  T174]  new_sync_write (fs/read_write.c:595)
[   12.562198][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.562201][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.562205][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.562208][  T174]  ? ksys_write (fs/read_write.c:739)
[   12.562215][  T174]  vfs_write (fs/read_write.c:687)
[   12.562219][  T174]  ksys_write (fs/read_write.c:739)
[   12.562222][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.562225][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.562229][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.562232][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.562234][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.562237][  T174] RIP: 0033:0x7fc491ca2312
[   12.562241][  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)
[   12.562243][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.562246][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc491ca2312
[   12.562247][  T174] RDX: 0000000000000001 RSI: 000055b6db73ff10 RDI: 0000000000000010
[   12.562248][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   12.562249][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   12.562250][  T174] R13: 000055b6db73ff10 R14: 0000000000000010 R15: 00007fc491a9d0d0
| [   13.943155][  T174] softirqs last disabled at (421181): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.943158][  T174] Preemption disabled at:
| [   13.943159][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.943168][  T174] Tainted: [W]=WARN
[   13.943169][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.943171][  T174] Call Trace:
[   13.943173][  T174]  <TASK>
[   13.943175][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.943181][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.943183][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.943188][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.943192][  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)
[   13.943198][  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))
[   13.943201][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.943208][  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)
[   13.943211][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.943215][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   13.943218][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.943220][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.943224][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.943228][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.943233][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.943236][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.943238][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.943243][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.943247][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.943249][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.943254][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.943258][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.943263][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.943265][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.943269][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.943274][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.943276][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.943281][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.943285][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.943287][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.943289][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.943293][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.943295][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.943298][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.943301][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.943304][  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)
[   13.943310][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.943314][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.943318][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.943320][  T174]  ? idr_get_free (??:?)
[   13.943324][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.943328][  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)
[   13.943332][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.943337][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.943340][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   13.943346][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.943351][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.943354][  T174]  new_sync_write (fs/read_write.c:595)
[   13.943360][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.943364][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.943369][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   13.943373][  T174]  vfs_write (fs/read_write.c:687)
[   13.943377][  T174]  ksys_write (fs/read_write.c:739)
[   13.943380][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.943383][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.943386][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.943389][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   13.943392][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.943395][  T174] RIP: 0033:0x7fc491ca2312
[   13.943399][  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)
[   13.943401][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.943404][  T174] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007fc491ca2312
[   13.943406][  T174] RDX: 00000000000002ee RSI: 000055b6db73ff10 RDI: 000000000000000b
[   13.943407][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   13.943408][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   13.943409][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   14.963180][  T174] softirqs last disabled at (461413): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.963183][  T174] Preemption disabled at:
| [   14.963184][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.963193][  T174] Tainted: [W]=WARN
[   14.963194][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.963196][  T174] Call Trace:
[   14.963198][  T174]  <TASK>
[   14.963200][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.963206][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.963208][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.963213][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.963218][  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)
[   14.963224][  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))
[   14.963227][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.963234][  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)
[   14.963237][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.963241][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   14.963244][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.963246][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.963251][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.963254][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.963260][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.963263][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.963269][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.963273][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.963278][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.963283][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.963288][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.963290][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.963295][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.963300][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.963302][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.963308][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.963312][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.963314][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.963316][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.963320][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.963322][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.963326][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.963329][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.963332][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   14.963334][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   14.963339][  T174]  _printk (kernel/printk/printk.c:2504)
[   14.963343][  T174]  ? snapshot_read.cold (user.c:?)
[   14.963345][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.963349][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   14.963351][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   14.963355][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   14.963359][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   14.963363][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   14.963366][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.963371][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   14.963373][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   14.963376][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   14.963378][  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))
[   14.963383][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   14.963385][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   14.963388][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   14.963391][  T174]  new_sync_write (fs/read_write.c:595)
[   14.963395][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.963400][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.963406][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.963409][  T174]  ? ksys_write (fs/read_write.c:739)
[   14.963416][  T174]  vfs_write (fs/read_write.c:687)
[   14.963420][  T174]  ksys_write (fs/read_write.c:739)
[   14.963423][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.963426][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.963430][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.963433][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   14.963436][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.963439][  T174] RIP: 0033:0x7fc491ca2312
[   14.963443][  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)
[   14.963445][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.963448][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc491ca2312
[   14.963450][  T174] RDX: 0000000000000001 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   14.963451][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   14.963452][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   14.963453][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   15.963149][  T174] softirqs last disabled at (481204): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.963152][  T174] Preemption disabled at:
| [   15.963153][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.963163][  T174] Tainted: [W]=WARN
[   15.963164][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.963166][  T174] Call Trace:
[   15.963168][  T174]  <TASK>
[   15.963170][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.963177][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.963179][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.963184][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.963189][  T174]  ? kmem_cache_alloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5010)
[   15.963195][  T174]  kmem_cache_alloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5010 (discriminator 2))
[   15.963197][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.963200][  T174]  ? __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   15.963206][  T174]  __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   15.963209][  T174]  ? kasan_quarantine_reduce (./include/linux/srcu.h:498 mm/kasan/quarantine.c:287)
[   15.963212][  T174]  __create_object (mm/kmemleak.c:801)
[   15.963216][  T174]  __kmalloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4696 mm/slub.c:4996 mm/slub.c:5413 mm/slub.c:5439)
[   15.963219][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.963226][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.963230][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   15.963233][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.963235][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.963239][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.963243][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.963248][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.963251][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.963257][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.963261][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.963267][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.963271][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.963277][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.963279][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.963284][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.963289][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.963291][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.963297][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.963300][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.963303][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.963305][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.963309][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.963311][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.963315][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.963319][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.963321][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   15.963323][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   15.963331][  T174]  _printk (kernel/printk/printk.c:2504)
[   15.963337][  T174]  ? snapshot_read.cold (user.c:?)
[   15.963339][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.963344][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   15.963346][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   15.963350][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   15.963353][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   15.963358][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   15.963361][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.963365][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   15.963367][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   15.963370][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   15.963373][  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))
[   15.963377][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   15.963379][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   15.963382][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   15.963385][  T174]  new_sync_write (fs/read_write.c:595)
[   15.963389][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.963392][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.963396][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.963399][  T174]  ? ksys_write (fs/read_write.c:739)
[   15.963406][  T174]  vfs_write (fs/read_write.c:687)
[   15.963410][  T174]  ksys_write (fs/read_write.c:739)
[   15.963413][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.963416][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.963420][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.963423][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.963428][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.963430][  T174] RIP: 0033:0x7fc491ca2312
[   15.963435][  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)
[   15.963436][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.963440][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc491ca2312
[   15.963441][  T174] RDX: 0000000000000001 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   15.963442][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   15.963443][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   15.963444][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   17.324338][  T174] softirqs last disabled at (499845): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.324342][  T174] Preemption disabled at:
| [   17.324342][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.324352][  T174] Tainted: [W]=WARN
[   17.324353][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.324355][  T174] Call Trace:
[   17.324357][  T174]  <TASK>
[   17.324359][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.324366][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.324368][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.324373][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.324377][  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)
[   17.324384][  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))
[   17.324386][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.324393][  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)
[   17.324396][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.324400][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   17.324404][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.324406][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.324410][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.324414][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.324418][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.324422][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.324424][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.324429][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.324432][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.324435][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.324439][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.324443][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.324448][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.324450][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.324454][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.324459][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.324461][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.324466][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.324470][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.324472][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.324474][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.324478][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.324480][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.324483][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.324486][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.324489][  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)
[   17.324495][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.324499][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.324504][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.324506][  T174]  ? idr_get_free (??:?)
[   17.324509][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.324512][  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)
[   17.324515][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.324518][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.324520][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   17.324523][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.324527][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.324529][  T174]  new_sync_write (fs/read_write.c:595)
[   17.324534][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.324539][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.324544][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.324547][  T174]  vfs_write (fs/read_write.c:687)
[   17.324551][  T174]  ksys_write (fs/read_write.c:739)
[   17.324554][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.324557][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.324561][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.324563][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   17.324566][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.324569][  T174] RIP: 0033:0x7fc491ca2312
[   17.324573][  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)
[   17.324575][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.324578][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fc491ca2312
[   17.324580][  T174] RDX: 0000000000000316 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   17.324581][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   17.324582][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   17.324583][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   18.325093][  T174] softirqs last disabled at (528768): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   18.325095][  T174] Preemption disabled at:
| [   18.325096][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.325106][  T174] Tainted: [W]=WARN
[   18.325107][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.325109][  T174] Call Trace:
[   18.325111][  T174]  <TASK>
[   18.325113][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.325120][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.325122][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.325127][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.325131][  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)
[   18.325137][  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))
[   18.325140][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.325146][  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)
[   18.325149][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.325153][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   18.325157][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.325159][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.325163][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.325167][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.325172][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.325176][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.325182][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.325185][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.325191][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.325196][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.325201][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.325203][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.325208][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.325212][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.325215][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.325221][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.325224][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.325227][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.325229][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.325233][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.325235][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.325238][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.325242][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.325245][  T174]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   18.325247][  T174]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   18.325252][  T174]  _printk (kernel/printk/printk.c:2504)
[   18.325256][  T174]  ? snapshot_read.cold (user.c:?)
[   18.325258][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.325263][  T174]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   18.325265][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.325268][  T174]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   18.325272][  T174]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   18.325277][  T174] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   18.325280][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   18.325284][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   18.325286][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   18.325289][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   18.325292][  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))
[   18.325296][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   18.325299][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   18.325302][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   18.325305][  T174]  new_sync_write (fs/read_write.c:595)
[   18.325309][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.325312][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   18.325316][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.325318][  T174]  ? ksys_write (fs/read_write.c:739)
[   18.325325][  T174]  vfs_write (fs/read_write.c:687)
[   18.325329][  T174]  ksys_write (fs/read_write.c:739)
[   18.325332][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   18.325336][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.325339][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.325342][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   18.325347][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.325350][  T174] RIP: 0033:0x7fc491ca2312
[   18.325354][  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)
[   18.325356][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.325360][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc491ca2312
[   18.325361][  T174] RDX: 0000000000000001 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   18.325362][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   18.325363][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   18.325364][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   19.675800][  T174] softirqs last disabled at (557125): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.675803][  T174] Preemption disabled at:
| [   19.675804][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.675813][  T174] Tainted: [W]=WARN
[   19.675814][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.675817][  T174] Call Trace:
[   19.675819][  T174]  <TASK>
[   19.675821][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.675827][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.675828][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.675833][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.675838][  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)
[   19.675844][  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))
[   19.675846][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.675853][  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)
[   19.675856][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.675860][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   19.675869][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.675871][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.675875][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.675879][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.675883][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.675887][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.675889][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.675894][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.675898][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.675900][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.675904][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.675909][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.675913][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.675915][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.675919][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.675924][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.675926][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.675931][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.675935][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.675937][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.675939][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.675943][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.675945][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.675948][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.675951][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.675954][  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)
[   19.675960][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.675964][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.675968][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.675970][  T174]  ? idr_get_free (??:?)
[   19.675974][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.675977][  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)
[   19.675979][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.675982][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.675984][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   19.675988][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.675991][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.675994][  T174]  new_sync_write (fs/read_write.c:595)
[   19.675999][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.676004][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.676009][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   19.676013][  T174]  vfs_write (fs/read_write.c:687)
[   19.676017][  T174]  ksys_write (fs/read_write.c:739)
[   19.676020][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.676023][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.676026][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.676029][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   19.676032][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.676034][  T174] RIP: 0033:0x7fc491ca2312
[   19.676039][  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)
[   19.676041][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.676044][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fc491ca2312
[   19.676045][  T174] RDX: 0000000000000316 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   19.676047][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   19.676048][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390
[   19.676049][  T174] R13: 000055b6db73ff10 R14: 000000000000000b R15: 00007fc491a9d0d0
| [   21.096862][  T174] softirqs last disabled at (591949): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.096864][  T174] Preemption disabled at:
| [   21.096865][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.096874][  T174] Tainted: [W]=WARN
[   21.096884][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.096887][  T174] Call Trace:
[   21.096889][  T174]  <TASK>
[   21.096891][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.096897][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.096899][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.096904][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.096908][  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)
[   21.096915][  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))
[   21.096918][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.096925][  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)
[   21.096928][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.096932][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   21.096935][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.096937][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   21.096941][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.096944][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.096949][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.096953][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.096955][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.096960][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.096964][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.096966][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.096970][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.096974][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.096979][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.096981][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.096985][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.096990][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.096992][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.096998][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.097001][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.097003][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.097005][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.097009][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.097011][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.097014][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.097017][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.097020][  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)
[   21.097026][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   21.097030][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   21.097034][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   21.097036][  T174]  ? idr_get_free (??:?)
[   21.097040][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   21.097043][  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)
[   21.097045][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   21.097048][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.097050][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   21.097054][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.097057][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.097059][  T174]  new_sync_write (fs/read_write.c:595)
[   21.097065][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   21.097069][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.097074][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   21.097078][  T174]  vfs_write (fs/read_write.c:687)
[   21.097082][  T174]  ksys_write (fs/read_write.c:739)
[   21.097085][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   21.097087][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.097091][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.097094][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   21.097097][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.097100][  T174] RIP: 0033:0x7fc491ca2312
[   21.097105][  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)
[   21.097107][  T174] RSP: 002b:00007ffe7b782858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   21.097110][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fc491ca2312
[   21.097112][  T174] RDX: 0000000000000316 RSI: 000055b6db73ff10 RDI: 000000000000000b
[   21.097113][  T174] RBP: 00007ffe7b782880 R08: 0000000000000000 R09: 0000000000000000
[   21.097114][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc491b0f390


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__alloc_skb:vprintk_emit:dump_stack_lvl:kmem_cache_alloc_noprof:__alloc_object
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars