======================================
| [   11.632767][  T226] softirqs last disabled at (19813): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.632770][  T226] Preemption disabled at:
| [   11.632770][  T226] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.632779][  T226] Tainted: [W]=WARN
[   11.632779][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.632781][  T226] Call Trace:
[   11.632782][  T226]  <TASK>
[   11.632784][  T226]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.632790][  T226]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.632792][  T226]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.632796][  T226]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.632800][  T226]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.632804][  T226]  __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))
[   11.632806][  T226]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.632813][  T226]  ? 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)
[   11.632815][  T226]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.632819][  T226]  put_chars (drivers/char/virtio_console.c:1176)
[   11.632822][  T226]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.632823][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.632826][  T226]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.632829][  T226]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.632834][  T226]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.632837][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.632843][  T226]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.632846][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.632850][  T226]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.632854][  T226]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.632856][  T226]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.632859][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.632861][  T226]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.632865][  T226]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.632869][  T226]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.632871][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.632876][  T226]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.632879][  T226]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.632881][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.632882][  T226]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.632886][  T226]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.632888][  T226]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.632890][  T226]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.632894][  T226]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.632896][  T226]  ? macsec_exit (drivers/net/macsec.c:4354 (discriminator 1)) macsec
[   11.632899][  T226]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4989 (discriminator 2))
[   11.632903][  T226]  ? macsec_exit (drivers/net/macsec.c:4354 (discriminator 1)) macsec
[   11.632906][  T226]  _printk (kernel/printk/printk.c:2504)
[   11.632910][  T226]  ? snapshot_read.cold (user.c:?)
[   11.632911][  T226]  ? alloc_workqueue_lockdep_map (kernel/workqueue.c:6092)
[   11.632919][  T226] macsec_init (drivers/net/macsec.c:358 (discriminator 1)) macsec
[   11.632922][  T226]  do_one_initcall (init/main.c:1357)
[   11.632925][  T226]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.632930][  T226]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.632933][  T226]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.632938][  T226]  do_init_module (kernel/module/main.c:3117)
[   11.632941][  T226]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.632945][  T226]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.632947][  T226]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.632951][  T226]  load_module (kernel/module/main.c:3593)
[   11.632956][  T226]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   11.632961][  T226]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.632967][  T226]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.632971][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.632974][  T226]  init_module_from_file (kernel/module/main.c:3790)
[   11.632976][  T226]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.632984][  T226]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.632987][  T226]  ? 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)
[   11.632990][  T226]  idempotent_init_module (kernel/module/main.c:3802)
[   11.632993][  T226]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.632998][  T226]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.633001][  T226]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   11.633006][  T226]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.633007][  T226]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.633011][  T226]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.633014][  T226]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.633016][  T226]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.633018][  T226] RIP: 0033:0x7f350ea2637d
[   11.633021][  T226] 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
[   11.633023][  T226] RSP: 002b:00007fffad48d728 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.633026][  T226] RAX: ffffffffffffffda RBX: 000055cea327e810 RCX: 00007f350ea2637d
[   11.633027][  T226] RDX: 0000000000000000 RSI: 000055ce67baaffd RDI: 0000000000000000
[   11.633028][  T226] RBP: 00007fffad48d7c0 R08: 0000000000000000 R09: 0000000000000000
[   11.633029][  T226] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce67baaffd
[   11.633030][  T226] R13: 000055cea327e960 R14: 0000000000040000 R15: 0000000000000000
| [   12.982642][  T269] softirqs last disabled at (28547): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.982644][  T269] Preemption disabled at:
| [   12.982645][  T269] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.982653][  T269] Tainted: [W]=WARN
[   12.982654][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.982655][  T269] Call Trace:
[   12.982657][  T269]  <TASK>
[   12.982658][  T269]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.982664][  T269]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.982666][  T269]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.982670][  T269]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.982674][  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)
[   12.982678][  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))
[   12.982680][  T269]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.982686][  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)
[   12.982689][  T269]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.982693][  T269]  put_chars (drivers/char/virtio_console.c:1176)
[   12.982695][  T269]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.982698][  T269]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.982703][  T269]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.982710][  T269]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.982713][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982716][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.982720][  T269]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.982724][  T269]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.982726][  T269]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.982729][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982731][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.982735][  T269]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.982739][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.982741][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.982746][  T269]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.982748][  T269]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.982750][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982752][  T269]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.982756][  T269]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.982757][  T269]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.982760][  T269]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.982763][  T269]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.982768][  T269]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   12.982771][  T269]  _printk (kernel/printk/printk.c:2504)
[   12.982775][  T269]  ? snapshot_read.cold (user.c:?)
[   12.982781][  T269]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   12.982784][  T269] xfrmi_init (net/xfrm/xfrm_interface_core.c:124) xfrm_interface
[   12.982788][  T269]  do_one_initcall (init/main.c:1357)
[   12.982790][  T269]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.982795][  T269]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.982797][  T269]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.982803][  T269]  do_init_module (kernel/module/main.c:3117)
[   12.982806][  T269]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.982810][  T269]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.982812][  T269]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.982816][  T269]  load_module (kernel/module/main.c:3593)
[   12.982821][  T269]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   12.982826][  T269]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.982829][  T269]  ? __ia32_sys_fsconfig (??:?)
[   12.982832][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.982835][  T269]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.982838][  T269]  init_module_from_file (kernel/module/main.c:3790)
[   12.982841][  T269]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.982848][  T269]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.982852][  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)
[   12.982855][  T269]  idempotent_init_module (kernel/module/main.c:3802)
[   12.982857][  T269]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.982863][  T269]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.982864][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   12.982869][  T269]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.982870][  T269]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.982874][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.982877][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.982880][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.982882][  T269] RIP: 0033:0x7fdc4aaea37d
[   12.982885][  T269] 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
[   12.982886][  T269] RSP: 002b:00007ffe70826108 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.982889][  T269] RAX: ffffffffffffffda RBX: 0000558736efd810 RCX: 00007fdc4aaea37d
[   12.982890][  T269] RDX: 0000000000000000 RSI: 00005586fe70bffd RDI: 0000000000000000
[   12.982891][  T269] RBP: 00007ffe708261a0 R08: 0000000000000000 R09: 0000000000000000
[   12.982892][  T269] R10: 0000000000000000 R11: 0000000000000246 R12: 00005586fe70bffd
[   12.982893][  T269] R13: 0000558736efd970 R14: 0000000000040000 R15: 0000000000000000
| [   17.279176][  T398] softirqs last disabled at (35457): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.279179][  T398] Preemption disabled at:
| [   17.279179][  T398] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.279188][  T398] Tainted: [W]=WARN
[   17.279189][  T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.279190][  T398] Call Trace:
[   17.279192][  T398]  <TASK>
[   17.279193][  T398]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.279199][  T398]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.279201][  T398]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.279205][  T398]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.279209][  T398]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.279214][  T398]  __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))
[   17.279216][  T398]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.279222][  T398]  ? 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)
[   17.279225][  T398]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.279229][  T398]  put_chars (drivers/char/virtio_console.c:1176)
[   17.279231][  T398]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.279232][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.279236][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.279239][  T398]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.279243][  T398]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.279247][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.279252][  T398]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.279255][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.279260][  T398]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.279264][  T398]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.279266][  T398]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   17.279269][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.279270][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.279274][  T398]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.279278][  T398]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.279280][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.279286][  T398]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.279288][  T398]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.279290][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.279292][  T398]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   17.279296][  T398]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.279297][  T398]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.279300][  T398]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.279304][  T398]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.279305][  T398]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.279309][  T398]  ? rtnl_link_register (net/core/rtnetlink.c:655)
[   17.279315][  T398]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   17.279318][  T398]  _printk (kernel/printk/printk.c:2504)
[   17.279321][  T398]  ? snapshot_read.cold (user.c:?)
[   17.279326][  T398]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   17.279329][  T398]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   17.279331][  T398] can_dev_init (can-dev.mod.c:?) can_dev
[   17.279335][  T398]  do_one_initcall (init/main.c:1357)
[   17.279338][  T398]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   17.279343][  T398]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   17.279345][  T398]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   17.279350][  T398]  do_init_module (kernel/module/main.c:3117)
[   17.279353][  T398]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.279356][  T398]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   17.279359][  T398]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   17.279362][  T398]  load_module (kernel/module/main.c:3593)
[   17.279367][  T398]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   17.279378][  T398]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   17.279383][  T398]  ? backing_file_read_iter (fs/backing-file.c:211)
[   17.279386][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.279390][  T398]  init_module_from_file (kernel/module/main.c:3790)
[   17.279392][  T398]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   17.279399][  T398]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   17.279403][  T398]  ? 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)
[   17.279406][  T398]  idempotent_init_module (kernel/module/main.c:3802)
[   17.279408][  T398]  ? init_module_from_file (kernel/module/main.c:3791)
[   17.279414][  T398]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   17.279416][  T398]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   17.279421][  T398]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   17.279423][  T398]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.279427][  T398]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.279430][  T398]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.279432][  T398]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.279434][  T398] RIP: 0033:0x7fe8fe8e437d
[   17.279437][  T398] 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
[   17.279439][  T398] RSP: 002b:00007ffc828b5a98 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   17.279442][  T398] RAX: ffffffffffffffda RBX: 000056078b50da50 RCX: 00007fe8fe8e437d
[   17.279443][  T398] RDX: 0000000000000000 RSI: 0000560789528ffd RDI: 0000000000000000
[   17.279444][  T398] RBP: 00007ffc828b5b30 R08: 0000000000000000 R09: 0000000000000000
[   17.279445][  T398] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560789528ffd


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