======================================
| [ 577.958600][ T2914] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
| [  577.958602][ T2914]
| [  577.958603][ T2914]
| [  577.958603][ T2914] stack backtrace:
[  577.958612][ T2914] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  577.958615][ T2914] Call Trace:
[  577.958617][ T2914]  <TASK>
[ 577.958619][ T2914] dump_stack_lvl (lib/dump_stack.c:123) 
[ 577.958627][ T2914] print_bad_irq_dependency (kernel/locking/lockdep.c:2618) 
[ 577.958632][ T2914] check_irq_usage (kernel/locking/lockdep.c:2863) 
[ 577.958636][ T2914] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 577.958640][ T2914] ? __bfs (kernel/locking/lockdep.c:1815 (discriminator 1)) 
[ 577.958643][ T2914] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:1997) 
[ 577.958651][ T2914] ? check_noncircular (kernel/locking/lockdep.c:2160) 
[ 577.958657][ T2914] ? check_prev_add (kernel/locking/lockdep.c:3169) 
[ 577.958659][ T2914] check_prev_add (kernel/locking/lockdep.c:3169) 
[ 577.958663][ T2914] validate_chain (kernel/locking/lockdep.c:3285 kernel/locking/lockdep.c:3908) 
[ 577.958667][ T2914] __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 577.958672][ T2914] lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) 
[ 577.958675][ T2914] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) 
[ 577.958679][ T2914] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 577.958684][ T2914] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 577.958687][ T2914] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) 
[ 577.958691][ T2914] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 577.958694][ T2914] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) 
[ 577.958696][ T2914] virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) 
[ 577.958701][ T2914] poll_napi (net/core/netpoll.c:156 net/core/netpoll.c:170) 
[ 577.958705][ T2914] netpoll_poll_dev (net/core/netpoll.c:202) 
[ 577.958709][ T2914] __netpoll_send_skb (./include/asm-generic/delay.h:62 net/core/netpoll.c:356) 
[ 577.958714][ T2914] ? netpoll_send_udp (./include/linux/skbuff.h:3109 net/core/netpoll.c:490 net/core/netpoll.c:528) 
[ 577.958717][ T2914] netpoll_send_skb (net/core/netpoll.c:410) 
[ 577.958721][ T2914] send_ext_msg_udp (drivers/net/netconsole.c:1495 drivers/net/netconsole.c:1533 drivers/net/netconsole.c:1689) netconsole 
[ 577.958728][ T2914] write_ext_msg (drivers/net/netconsole.c:1707 drivers/net/netconsole.c:1695) netconsole 
[ 577.958734][ T2914] console_emit_next_record (kernel/printk/printk.c:3055 (discriminator 3) kernel/printk/printk.c:3139 (discriminator 3)) 
[ 577.958738][ T2914] ? __pfx_console_emit_next_record (kernel/printk/printk.c:3082) 
[ 577.958741][ T2914] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 577.958746][ T2914] console_flush_all (kernel/printk/printk.c:3227) 
[ 577.958750][ T2914] ? __pfx_console_flush_all (kernel/printk/printk.c:3188) 
[ 577.958756][ T2914] console_unlock (kernel/printk/printk.c:3286 kernel/printk/printk.c:3325) 
[ 577.958758][ T2914] ? __pfx_console_unlock (kernel/printk/printk.c:3320) 
[ 577.958761][ T2914] ? lock_acquire (kernel/locking/lockdep.c:5872) 
[ 577.958763][ T2914] ? vprintk_emit (kernel/printk/printk.c:2449) 
[ 577.958767][ T2914] ? __down_trylock_console_sem (kernel/printk/printk.c:332) 
[ 577.958770][ T2914] ? vprintk_emit (kernel/printk/printk.c:2449) 
[ 577.958773][ T2914] vprintk_emit (kernel/printk/printk.c:2450) 
[ 577.958776][ T2914] ? __pfx_vprintk_emit (kernel/printk/printk.c:2397) 
[ 577.958779][ T2914] ? _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:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 577.958786][ T2914] ? __create_object (mm/kmemleak.c:771) 
[ 577.958790][ T2914] ? __lock_release (kernel/locking/lockdep.c:5536) 
[ 577.958794][ T2914] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) 
[ 577.958797][ T2914] ? __pfx_devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) 
[ 577.958800][ T2914] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 577.958803][ T2914] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) 
[ 577.958808][ T2914] ? __kmalloc_noprof (mm/slub.c:4341) 
[ 577.958813][ T2914] devkmsg_write (kernel/printk/printk.c:819) 
[ 577.958816][ T2914] ? __pfx_devkmsg_write (kernel/printk/printk.c:762) 
[ 577.958820][ T2914] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 577.958823][ T2914] vfs_write (fs/read_write.c:593 fs/read_write.c:686) 
[ 577.958827][ T2914] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 577.958831][ T2914] ? __pfx_vfs_write (fs/read_write.c:667) 
[ 577.958835][ T2914] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1072) 
[ 577.958843][ T2914] ksys_write (fs/read_write.c:738) 
[ 577.958846][ T2914] ? __pfx_ksys_write (fs/read_write.c:728) 
[ 577.958849][ T2914] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 577.958855][ T2914] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 577.958858][ T2914] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  577.958861][ T2914] RIP: 0033:0x7fcc5954036f
[ 577.958865][ T2914] 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
[  577.958868][ T2914] RSP: 002b:00007ffe961d1b10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[  577.958871][ T2914] RAX: ffffffffffffffda RBX: 00007fcc59366148 RCX: 00007fcc5954036f
[  577.958873][ T2914] RDX: 00000000000002ee RSI: 00005594fc3a0fc0 RDI: 000000000000000a
[  577.958875][ T2914] RBP: 00000000000002ee R08: 0000000000000000 R09: 0000000000000002
[  577.958877][ T2914] R10: 0000000000000002 R11: 0000000000000293 R12: 00007fcc4b246e80


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