======================================
| [    9.454944][  T169] softirqs last disabled at (26587): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.454947][  T169] Preemption disabled at:
| [    9.454948][  T169] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.454957][  T169] Tainted: [W]=WARN
[    9.454958][  T169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.454959][  T169] Call Trace:
[    9.454961][  T169]  <TASK>
[    9.454962][  T169]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.454968][  T169]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.454970][  T169]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.454974][  T169]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.454978][  T169]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.454982][  T169]  __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))
[    9.454984][  T169]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.454990][  T169]  ? 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)
[    9.454992][  T169]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.454995][  T169]  put_chars (drivers/char/virtio_console.c:1176)
[    9.454998][  T169]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.455001][  T169]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.455006][  T169]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.455012][  T169]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.455015][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.455018][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.455022][  T169]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.455026][  T169]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.455030][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.455032][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.455036][  T169]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.455039][  T169]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.455041][  T169]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.455046][  T169]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.455048][  T169]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.455050][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.455052][  T169]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.455055][  T169]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.455056][  T169]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.455060][  T169]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.455063][  T169]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.455065][  T169]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.455068][  T169]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.455070][  T169]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    9.455074][  T169]  ? 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
[    9.455078][  T169]  _printk (kernel/printk/printk.c:2504)
[    9.455082][  T169]  ? snapshot_read.cold (user.c:?)
[    9.455085][  T169]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    9.455088][  T169]  ? 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
[    9.455092][  T169]  ? 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)
[    9.455096][  T169] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    9.455100][  T169]  ? 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
[    9.455106][  T169]  ? 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
[    9.455109][  T169]  do_one_initcall (init/main.c:1357)
[    9.455112][  T169]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    9.455117][  T169]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    9.455120][  T169]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    9.455125][  T169]  do_init_module (kernel/module/main.c:3117)
[    9.455129][  T169]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.455133][  T169]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    9.455136][  T169]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    9.455140][  T169]  load_module (kernel/module/main.c:3593)
[    9.455146][  T169]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    9.455150][  T169]  ? __ia32_sys_fsconfig (??:?)
[    9.455153][  T169]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    9.455156][  T169]  ? backing_file_read_iter (fs/backing-file.c:211)
[    9.455160][  T169]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.455164][  T169]  init_module_from_file (kernel/module/main.c:3790)
[    9.455167][  T169]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    9.455174][  T169]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.455178][  T169]  ? 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)
[    9.455180][  T169]  idempotent_init_module (kernel/module/main.c:3802)
[    9.455184][  T169]  ? init_module_from_file (kernel/module/main.c:3791)
[    9.455190][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.455192][  T169]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.455201][  T169]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    9.455203][  T169]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.455207][  T169]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.455208][  T169]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.455211][  T169]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.455213][  T169] RIP: 0033:0x7f382326d37d
[    9.455217][  T169] 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
[    9.455218][  T169] RSP: 002b:00007ffd4f3542d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    9.455221][  T169] RAX: ffffffffffffffda RBX: 000056049a4e6700 RCX: 00007f382326d37d
[    9.455223][  T169] RDX: 0000000000000000 RSI: 0000560483ba9ffd RDI: 0000000000000005
[    9.455224][  T169] RBP: 00007ffd4f354370 R08: 0000000000000000 R09: 0000000000000000
[    9.455224][  T169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560483ba9ffd
[    9.455225][  T169] R13: 000056049a4e6810 R14: 0000000000040000 R15: 0000000000000000
| [   10.457294][  T157] softirqs last disabled at (107502): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.457296][  T157] Preemption disabled at:
| [   10.457297][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.457307][  T157] Tainted: [W]=WARN
[   10.457308][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.457309][  T157] Call Trace:
[   10.457311][  T157]  <TASK>
[   10.457313][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.457318][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.457321][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.457325][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.457329][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.457334][  T157]  __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))
[   10.457336][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.457342][  T157]  ? 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)
[   10.457344][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.457347][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   10.457350][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.457351][  T157]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.457356][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.457358][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.457363][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.457366][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.457371][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.457373][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.457378][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.457382][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.457387][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.457389][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.457393][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.457397][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.457398][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.457408][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.457411][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.457413][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.457415][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.457419][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.457420][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.457424][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.457428][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.457430][  T157]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   10.457433][  T157]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   10.457438][  T157]  _printk (kernel/printk/printk.c:2504)
[   10.457442][  T157]  ? snapshot_read.cold (user.c:?)
[   10.457444][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.457448][  T157]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   10.457449][  T157]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.457453][  T157]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.457457][  T157]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   10.457462][  T157] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   10.457464][  T157]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.457468][  T157]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   10.457470][  T157]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   10.457472][  T157]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5559)
[   10.457474][  T157]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   10.457478][  T157]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   10.457480][  T157]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   10.457483][  T157]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   10.457486][  T157]  new_sync_write (fs/read_write.c:595)
[   10.457489][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.457491][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.457495][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.457496][  T157]  ? ksys_write (fs/read_write.c:739)
[   10.457503][  T157]  vfs_write (fs/read_write.c:687)
[   10.457507][  T157]  ksys_write (fs/read_write.c:739)
[   10.457510][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.457512][  T157]  ? 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)
[   10.457515][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.457518][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.457520][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.457523][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.457525][  T157] RIP: 0033:0x7f50d3cd654e
[   10.457529][  T157] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.457531][  T157] RSP: 002b:00007fff90a3a320 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.457534][  T157] RAX: ffffffffffffffda RBX: 00007f50d3e57580 RCX: 00007f50d3cd654e
[   10.457535][  T157] RDX: 0000000000000002 RSI: 000055f097f650f0 RDI: 0000000000000001
[   10.457536][  T157] RBP: 00007fff90a3a330 R08: 0000000000000000 R09: 0000000000000000
[   10.457537][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[   10.457538][  T157] R13: 0000000000000002 R14: 000055f097f650f0 R15: 0000000000000000
| [   12.046853][  T239] softirqs last disabled at (8983): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.046856][  T239] Preemption disabled at:
| [   12.046856][  T239] 0x0
| [   12.046867][  T239] Tainted: [W]=WARN
[   12.046868][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.046870][  T239] Call Trace:
[   12.046872][  T239]  <TASK>
[   12.046874][  T239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.046879][  T239]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.046884][  T239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.046888][  T239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.046892][  T239]  __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))
[   12.046895][  T239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.046901][  T239]  ? 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)
[   12.046903][  T239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.046907][  T239]  put_chars (drivers/char/virtio_console.c:1176)
[   12.046909][  T239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.046911][  T239]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.046914][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.046917][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.046921][  T239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.046924][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.046926][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.046932][  T239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.046935][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.046938][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.046942][  T239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.046946][  T239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.046950][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.046953][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.046956][  T239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.046960][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.046962][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.046967][  T239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.046970][  T239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.046971][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.046973][  T239]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.046977][  T239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.046978][  T239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.046982][  T239]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.046985][  T239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.046989][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.046992][  T239]  _printk (kernel/printk/printk.c:2504)
[   12.046996][  T239]  ? snapshot_read.cold (user.c:?)
[   12.046999][  T239]  ? 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)
[   12.047001][  T239]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.047005][  T239]  ? 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)
[   12.047007][  T239]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   12.047011][  T239]  ? exit_notify (kernel/exit.c:780)
[   12.047013][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.047015][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.047019][  T239]  do_group_exit (kernel/exit.c:1151)
[   12.047023][  T239]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   12.047025][  T239]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   12.047028][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.047031][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.047035][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.047037][  T239] RIP: 0033:0x7f2c64df41b8
[   12.047039][  T239] Code: Unable to access opcode bytes at 0x7f2c64df418e.

Code starting with the faulting instruction
===========================================
[   12.047040][  T239] RSP: 002b:00007fff62939578 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   12.047043][  T239] RAX: ffffffffffffffda RBX: 00007f2c64f24f88 RCX: 00007f2c64df41b8
[   12.047045][  T239] RDX: 00007f2c64c51b48 RSI: fffffffffffffec8 RDI: 0000000000000000
[   12.047046][  T239] RBP: 00007fff629395d0 R08: 0000000000000000 R09: 0000000000000001
[   12.047047][  T239] R10: 00007fff629393f0 R11: 0000000000000246 R12: 0000000000000002
[   12.047048][  T239] R13: 0000000000000000 R14: 00007f2c64f23680 R15: 00007f2c64f24fa0
| [   16.575415][  T157] softirqs last disabled at (586559): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.575418][  T157] Preemption disabled at:
| [   16.575419][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.575429][  T157] Tainted: [W]=WARN
[   16.575435][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.575437][  T157] Call Trace:
[   16.575439][  T157]  <TASK>
[   16.575442][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.575449][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.575452][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.575458][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.575463][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.575467][  T157]  __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))
[   16.575469][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.575475][  T157]  ? 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)
[   16.575477][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.575481][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   16.575484][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.575485][  T157]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1929)
[   16.575489][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.575492][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.575496][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.575499][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.575500][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.575505][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.575506][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.575509][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575513][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.575517][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.575521][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.575525][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575528][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.575531][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.575536][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.575537][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.575543][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.575545][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.575547][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575549][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.575553][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.575554][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.575558][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.575561][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.575564][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.575566][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575567][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575571][  T157]  _printk (kernel/printk/printk.c:2504)
[   16.575575][  T157]  ? snapshot_read.cold (user.c:?)
[   16.575578][  T157]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.575582][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.575585][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.575590][  T157]  unregister_console_locked.cold (kernel/printk/printk.c:4244 (discriminator 7))
[   16.575594][  T157]  ? console_suspend (kernel/printk/printk.c:114 (discriminator 1))
[   16.575600][  T157]  ? console_list_lock (./include/linux/lockdep.h:249 ./include/linux/srcu.h:184 ./include/linux/srcu.h:180 kernel/printk/printk.c:260)
[   16.575602][  T157]  unregister_console (kernel/printk/printk.c:4334)
[   16.575604][  T157] enabled_store (drivers/net/netconsole.c:975 drivers/net/netconsole.c:1089) netconsole
[   16.575607][  T157]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.575610][  T157]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.575613][  T157]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   16.575614][  T157]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5559)
[   16.575617][  T157]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   16.575621][  T157]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.575623][  T157]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   16.575626][  T157]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   16.575629][  T157]  new_sync_write (fs/read_write.c:595)
[   16.575632][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.575634][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   16.575638][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.575639][  T157]  ? ksys_write (fs/read_write.c:739)
[   16.575646][  T157]  vfs_write (fs/read_write.c:687)
[   16.575650][  T157]  ksys_write (fs/read_write.c:739)
[   16.575653][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   16.575656][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575658][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.575662][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.575664][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.575667][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.575670][  T157] RIP: 0033:0x7f50d3cd654e
[   16.575673][  T157] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.575675][  T157] RSP: 002b:00007fff90a398a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   16.575679][  T157] RAX: ffffffffffffffda RBX: 00007f50d3e57580 RCX: 00007f50d3cd654e
[   16.575680][  T157] RDX: 0000000000000002 RSI: 000055f097f650f0 RDI: 0000000000000001
[   16.575681][  T157] RBP: 00007fff90a398b0 R08: 0000000000000000 R09: 0000000000000000
[   16.575682][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002


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