======================================
| [ 532.110586][ T3149] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [  532.110588][ T3149]
| [  532.110589][ T3149]
| [  532.110589][ T3149] stack backtrace:
[  532.110596][ T3149] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  532.110599][ T3149] Call Trace:
[  532.110601][ T3149]  <TASK>
[ 532.110602][ T3149] dump_stack_lvl (lib/dump_stack.c:123) 
[ 532.110608][ T3149] print_bad_irq_dependency (kernel/locking/lockdep.c:2618) 
[ 532.110614][ T3149] check_irq_usage (kernel/locking/lockdep.c:2863) 
[ 532.110617][ T3149] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 532.110622][ T3149] ? __bfs (kernel/locking/lockdep.c:1815 (discriminator 1)) 
[ 532.110624][ T3149] ? add_chain_cache (kernel/locking/lockdep.c:1997) 
[ 532.110629][ T3149] ? check_noncircular (kernel/locking/lockdep.c:2160) 
[ 532.110634][ T3149] ? check_prev_add (kernel/locking/lockdep.c:3169) 
[ 532.110636][ T3149] check_prev_add (kernel/locking/lockdep.c:3169) 
[ 532.110640][ T3149] validate_chain (kernel/locking/lockdep.c:3285 kernel/locking/lockdep.c:3908) 
[ 532.110645][ T3149] __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 532.110649][ T3149] lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) 
[ 532.110652][ T3149] ? virtnet_poll_tx (./include/linux/netdevice.h:4674 drivers/net/virtio_net.c:3255) 
[ 532.110656][ T3149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) 
[ 532.110660][ T3149] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 532.110662][ T3149] ? virtnet_poll_tx (./include/linux/netdevice.h:4674 drivers/net/virtio_net.c:3255) 
[ 532.110666][ T3149] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 532.110669][ T3149] ? virtnet_poll_tx (./include/linux/netdevice.h:4674 drivers/net/virtio_net.c:3255) 
[ 532.110672][ T3149] virtnet_poll_tx (./include/linux/netdevice.h:4674 drivers/net/virtio_net.c:3255) 
[ 532.110676][ T3149] poll_napi (net/core/netpoll.c:156 net/core/netpoll.c:170) 
[ 532.110680][ T3149] netpoll_poll_dev (net/core/netpoll.c:202) 
[ 532.110684][ T3149] __netpoll_send_skb (./include/asm-generic/delay.h:62 net/core/netpoll.c:356) 
[ 532.110688][ T3149] ? netpoll_send_udp (./include/linux/skbuff.h:3150 net/core/netpoll.c:490 net/core/netpoll.c:528) 
[ 532.110692][ T3149] netpoll_send_skb (net/core/netpoll.c:410) 
[ 532.110696][ T3149] send_ext_msg_udp (drivers/net/netconsole.c:1498 drivers/net/netconsole.c:1536 drivers/net/netconsole.c:1692) netconsole 
[ 532.110702][ T3149] write_ext_msg (drivers/net/netconsole.c:1710 drivers/net/netconsole.c:1698) netconsole 
[ 532.110708][ T3149] console_emit_next_record (kernel/printk/printk.c:3055 (discriminator 3) kernel/printk/printk.c:3139 (discriminator 3)) 
[ 532.110712][ T3149] ? devkmsg_read (kernel/printk/printk.c:3082) 
[ 532.110716][ T3149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) 
[ 532.110721][ T3149] console_flush_all (kernel/printk/printk.c:3227) 
[ 532.110726][ T3149] ? console_emit_next_record (kernel/printk/printk.c:3188) 
[ 532.110731][ T3149] console_unlock (kernel/printk/printk.c:3286 kernel/printk/printk.c:3325) 
[ 532.110734][ T3149] ? console_flush_all (kernel/printk/printk.c:3320) 
[ 532.110738][ T3149] ? lock_acquire (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:646 ./include/linux/cpumask.h:1205 ./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 532.110740][ T3149] ? vprintk_emit (kernel/printk/printk.c:2449) 
[ 532.110744][ T3149] ? __down_trylock_console_sem (kernel/printk/printk.c:332) 
[ 532.110747][ T3149] ? vprintk_emit (kernel/printk/printk.c:2449) 
[ 532.110751][ T3149] vprintk_emit (kernel/printk/printk.c:2450) 
[ 532.110755][ T3149] ? wake_up_klogd_work_func (kernel/printk/printk.c:2397) 
[ 532.110758][ T3149] ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 532.110764][ T3149] ? __create_object (mm/kmemleak.c:774) 
[ 532.110768][ T3149] ? __lock_release (kernel/locking/lockdep.c:5536) 
[ 532.110772][ T3149] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) 
[ 532.110776][ T3149] ? vprintk_default (kernel/printk/printk.c:749) 
[ 532.110780][ T3149] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) 
[ 532.110783][ T3149] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) 
[ 532.110789][ T3149] ? __kmalloc_noprof (mm/slub.c:4378) 
[ 532.110794][ T3149] devkmsg_write (kernel/printk/printk.c:819) 
[ 532.110797][ T3149] ? inode_set_bytes (fs/stat.c:471) 
[ 532.110802][ T3149] ? devkmsg_emit.constprop.0 (kernel/printk/printk.c:762) 
[ 532.110807][ T3149] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 532.110810][ T3149] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
[ 532.110814][ T3149] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 532.110817][ T3149] ? kernel_write (fs/read_write.c:667) 
[ 532.110821][ T3149] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1072) 
[ 532.110829][ T3149] ksys_write (fs/read_write.c:738) 
[ 532.110832][ T3149] ? __ia32_sys_read (fs/read_write.c:728) 
[ 532.110837][ T3149] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 532.110841][ T3149] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  532.110844][ T3149] RIP: 0033:0x7fe0a947836f
[ 532.110847][ T3149] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 89 8a f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 dc 8a f8 ff 48
All code
========
   0:	89 54 24 18          	mov    %edx,0x18(%rsp)
   4:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
   9:	89 7c 24 08          	mov    %edi,0x8(%rsp)
   d:	e8 89 8a f8 ff       	call   0xfffffffffff88a9b
  12:	48 8b 54 24 18       	mov    0x18(%rsp),%rdx
  17:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  1c:	41 89 c0             	mov    %eax,%r8d
  1f:	8b 7c 24 08          	mov    0x8(%rsp),%edi
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 31                	ja     0x63
  32:	44 89 c7             	mov    %r8d,%edi
  35:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  3a:	e8 dc 8a f8 ff       	call   0xfffffffffff88b1b
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 31                	ja     0x39
   8:	44 89 c7             	mov    %r8d,%edi
   b:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  10:	e8 dc 8a f8 ff       	call   0xfffffffffff88af1
  15:	48                   	rex.W
[  532.110850][ T3149] RSP: 002b:00007ffd2bd431b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  532.110854][ T3149] RAX: ffffffffffffffda RBX: 00007fe0a929e148 RCX: 00007fe0a947836f
[  532.110856][ T3149] RDX: 0000000000000316 RSI: 00005645c4db2530 RDI: 000000000000000a
[  532.110857][ T3149] RBP: 0000000000000316 R08: 0000000000000000 R09: 0000000000000002
[  532.110859][ T3149] R10: 0000000000000002 R11: 0000000000000293 R12: 00007fe09b191dc0


Finger prints:
print_bad_irq_dependency:check_irq_usage:check_prev_add:validate_chain:__lock_acquire