======================================
| [    8.799945][  T170] softirqs last disabled at (28853): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.799947][  T170] Preemption disabled at:
| [    8.799948][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.799957][  T170] Tainted: [W]=WARN
[    8.799958][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.799959][  T170] Call Trace:
[    8.799961][  T170]  <TASK>
[    8.799962][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.799967][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.799969][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.799974][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.799978][  T170]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.799983][  T170]  __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))
[    8.799985][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.799990][  T170]  ? 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)
[    8.799992][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.799995][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    8.799999][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.800001][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.800006][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.800012][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.800014][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.800018][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.800022][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.800025][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.800029][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.800031][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.800035][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.800038][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.800040][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.800045][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.800047][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.800049][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.800051][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.800054][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.800055][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.800058][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.800062][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.800063][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.800067][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.800068][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.800073][  T170]  ? 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
[    8.800076][  T170]  _printk (kernel/printk/printk.c:2504)
[    8.800082][  T170]  ? snapshot_read.cold (user.c:?)
[    8.800085][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.800088][  T170]  ? 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
[    8.800092][  T170]  ? 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)
[    8.800103][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.800106][  T170]  ? 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
[    8.800112][  T170]  ? 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
[    8.800115][  T170]  do_one_initcall (init/main.c:1357)
[    8.800118][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.800123][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.800126][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.800131][  T170]  do_init_module (kernel/module/main.c:3117)
[    8.800135][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.800139][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.800142][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.800146][  T170]  load_module (kernel/module/main.c:3593)
[    8.800152][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.800155][  T170]  ? __ia32_sys_fsconfig (??:?)
[    8.800158][  T170]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.800162][  T170]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.800166][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.800170][  T170]  init_module_from_file (kernel/module/main.c:3790)
[    8.800172][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.800180][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.800183][  T170]  ? 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)
[    8.800186][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[    8.800190][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.800195][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.800198][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.800203][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.800205][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.800209][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.800211][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.800214][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.800216][  T170] RIP: 0033:0x7f97dc0ff37d
[    8.800219][  T170] 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
[    8.800221][  T170] RSP: 002b:00007ffd0f777128 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.800224][  T170] RAX: ffffffffffffffda RBX: 0000555d556e1700 RCX: 00007f97dc0ff37d
[    8.800225][  T170] RDX: 0000000000000000 RSI: 0000555d39178ffd RDI: 0000000000000005
[    8.800226][  T170] RBP: 00007ffd0f7771c0 R08: 0000000000000000 R09: 0000000000000000
[    8.800227][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555d39178ffd
[    8.800227][  T170] R13: 0000555d556e1810 R14: 0000000000040000 R15: 0000000000000000
| [   10.759970][  T158] softirqs last disabled at (134435): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.759973][  T158] Preemption disabled at:
| [   10.759974][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.759984][  T158] Tainted: [W]=WARN
[   10.759985][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.759986][  T158] Call Trace:
[   10.759988][  T158]  <TASK>
[   10.759990][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.759995][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.759997][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.760002][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.760005][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.760010][  T158]  __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))
[   10.760012][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.760018][  T158]  ? 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)
[   10.760021][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.760024][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   10.760027][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.760028][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.760032][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.760034][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.760038][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.760041][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.760043][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.760047][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.760050][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.760053][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.760057][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.760060][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.760065][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.760067][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.760070][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.760074][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.760076][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.760084][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.760087][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.760088][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.760091][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.760094][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.760096][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.760099][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.760102][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.760109][  T158]  ? _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)
[   10.760115][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   10.760119][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   10.760123][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   10.760125][  T158]  ? idr_get_free (??:?)
[   10.760128][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   10.760131][  T158]  ? _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)
[   10.760134][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   10.760137][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.760139][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.760141][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   10.760146][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.760148][  T158]  new_sync_write (fs/read_write.c:595)
[   10.760153][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.760154][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.760162][  T158]  vfs_write (fs/read_write.c:687)
[   10.760166][  T158]  ksys_write (fs/read_write.c:739)
[   10.760169][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.760171][  T158]  ? 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)
[   10.760174][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.760177][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.760179][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.760183][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.760185][  T158] RIP: 0033:0x7ff0f949154e
[   10.760189][  T158] 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
[   10.760191][  T158] RSP: 002b:00007ffdb701ac40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.760194][  T158] RAX: ffffffffffffffda RBX: 00007ff0f9612580 RCX: 00007ff0f949154e
[   10.760195][  T158] RDX: 0000000000000025 RSI: 0000561d9caf1ff0 RDI: 0000000000000001
[   10.760196][  T158] RBP: 00007ffdb701ac50 R08: 0000000000000000 R09: 0000000000000000
[   10.760197][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   10.760198][  T158] R13: 0000000000000025 R14: 0000561d9caf1ff0 R15: 0000000000000000
| [   11.833768][  T269] softirqs last disabled at (11665): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.833771][  T269] Preemption disabled at:
| [   11.833772][  T269] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.833781][  T269] Tainted: [W]=WARN
[   11.833782][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.833784][  T269] Call Trace:
[   11.833786][  T269]  <TASK>
[   11.833788][  T269]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.833793][  T269]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.833795][  T269]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.833800][  T269]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.833804][  T269]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.833808][  T269]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.833810][  T269]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.833816][  T269]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.833819][  T269]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.833822][  T269]  put_chars (drivers/char/virtio_console.c:1176)
[   11.833825][  T269]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.833826][  T269]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.833830][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.833832][  T269]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.833837][  T269]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.833839][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.833841][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.833845][  T269]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.833848][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.833852][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.833855][  T269]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.833859][  T269]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.833863][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.833865][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.833869][  T269]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.833873][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.833875][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.833880][  T269]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.833882][  T269]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.833884][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.833886][  T269]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.833890][  T269]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.833891][  T269]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.833894][  T269]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.833898][  T269]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.833901][  T269]  ? _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)
[   11.833907][  T269]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.833911][  T269]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.833915][  T269]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.833917][  T269]  ? idr_get_free (??:?)
[   11.833920][  T269]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.833923][  T269]  ? _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)
[   11.833926][  T269]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.833929][  T269]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.833931][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.833933][  T269]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.833937][  T269]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.833940][  T269]  new_sync_write (fs/read_write.c:595)
[   11.833945][  T269]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.833946][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.833954][  T269]  vfs_write (fs/read_write.c:687)
[   11.833958][  T269]  ksys_write (fs/read_write.c:739)
[   11.833961][  T269]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.833963][  T269]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.833966][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.833969][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.833971][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.833974][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.833977][  T269] RIP: 0033:0x7ff0f949154e
[   11.833981][  T269] 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
[   11.833983][  T269] RSP: 002b:00007ffdb701a640 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.833986][  T269] RAX: ffffffffffffffda RBX: 00007ff0f9612580 RCX: 00007ff0f949154e
[   11.833987][  T269] RDX: 0000000000000037 RSI: 0000561d9caf1ff0 RDI: 0000000000000001
[   11.833988][  T269] RBP: 00007ffdb701a650 R08: 0000000000000000 R09: 0000000000000000
[   11.833989][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000037
[   11.833990][  T269] R13: 0000000000000037 R14: 0000561d9caf1ff0 R15: 0000000000000000
| [   12.836817][  T158] softirqs last disabled at (564268): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   12.836819][  T158] Preemption disabled at:
| [   12.836820][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.836829][  T158] Tainted: [W]=WARN
[   12.836830][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.836831][  T158] Call Trace:
[   12.836833][  T158]  <TASK>
[   12.836835][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.836840][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.836842][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.836846][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.836850][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.836854][  T158]  __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))
[   12.836856][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.836862][  T158]  ? 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)
[   12.836864][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.836867][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   12.836870][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.836871][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.836874][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.836877][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.836881][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.836884][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.836885][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.836889][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.836892][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.836895][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.836899][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.836902][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.836906][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.836908][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.836912][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.836915][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.836917][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.836922][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.836924][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.836926][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.836928][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.836931][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.836933][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.836936][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.836939][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.836942][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   12.836948][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.836952][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.836956][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.836957][  T158]  ? idr_get_free (??:?)
[   12.836961][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.836964][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   12.836966][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.836969][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.836971][  T158]  ? handle_pte_fault (mm/memory.c:6582)
[   12.836975][  T158]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   12.836977][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.836980][  T158]  new_sync_write (fs/read_write.c:595)
[   12.836984][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.836986][  T158]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.836994][  T158]  vfs_write (fs/read_write.c:687)
[   12.836998][  T158]  ksys_write (fs/read_write.c:739)
[   12.837000][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.837002][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.837005][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.837008][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.837010][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.837013][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.837015][  T158] RIP: 0033:0x7ff0f949154e
[   12.837019][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.837021][  T158] RSP: 002b:00007ffdb701ac40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.837024][  T158] RAX: ffffffffffffffda RBX: 00007ff0f9612580 RCX: 00007ff0f949154e
[   12.837026][  T158] RDX: 0000000000000026 RSI: 0000561d9caf1ff0 RDI: 0000000000000001
[   12.837027][  T158] RBP: 00007ffdb701ac50 R08: 0000000000000000 R09: 0000000000000000
[   12.837028][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   12.837028][  T158] R13: 0000000000000026 R14: 0000561d9caf1ff0 R15: 0000000000000000
| [   13.837826][  T158] softirqs last disabled at (767188): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   13.837828][  T158] Preemption disabled at:
| [   13.837829][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.837838][  T158] Tainted: [W]=WARN
[   13.837839][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.837840][  T158] Call Trace:
[   13.837842][  T158]  <TASK>
[   13.837844][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.837848][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.837850][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.837855][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.837858][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.837863][  T158]  __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))
[   13.837865][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.837871][  T158]  ? 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)
[   13.837873][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.837876][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   13.837878][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.837880][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.837883][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.837886][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.837890][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.837892][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.837894][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.837898][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.837901][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.837904][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.837908][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.837911][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.837915][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.837917][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.837920][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.837924][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.837926][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.837930][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.837933][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.837935][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.837937][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.837941][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.837942][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.837945][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.837948][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.837951][  T158]  ? _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)
[   13.837957][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.837961][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.837964][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.837966][  T158]  ? idr_get_free (??:?)
[   13.837969][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.837972][  T158]  ? _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)
[   13.837975][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.837978][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.837979][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.837981][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   13.837986][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.837988][  T158]  new_sync_write (fs/read_write.c:595)
[   13.837992][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.837994][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.838001][  T158]  vfs_write (fs/read_write.c:687)
[   13.838005][  T158]  ksys_write (fs/read_write.c:739)
[   13.838008][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.838010][  T158]  ? 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)
[   13.838012][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.838016][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.838018][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.838021][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.838024][  T158] RIP: 0033:0x7ff0f949154e
[   13.838027][  T158] 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
[   13.838029][  T158] RSP: 002b:00007ffdb701ac40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.838032][  T158] RAX: ffffffffffffffda RBX: 00007ff0f9612580 RCX: 00007ff0f949154e
[   13.838034][  T158] RDX: 0000000000000027 RSI: 0000561d9caf1ff0 RDI: 0000000000000001
[   13.838035][  T158] RBP: 00007ffdb701ac50 R08: 0000000000000000 R09: 0000000000000000
[   13.838036][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027


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