======================================
| [    9.874130][  T213] softirqs last disabled at (18072): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [    9.874132][  T213] Preemption disabled at:
| [    9.874133][  T213] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.874141][  T213] Tainted: [W]=WARN
[    9.874142][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.874143][  T213] Call Trace:
[    9.874145][  T213]  <TASK>
[    9.874146][  T213]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.874151][  T213]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.874153][  T213]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.874157][  T213]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.874161][  T213]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.874167][  T213]  __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))
[    9.874169][  T213]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.874176][  T213]  ? 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)
[    9.874178][  T213]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.874181][  T213]  put_chars (drivers/char/virtio_console.c:1176)
[    9.874184][  T213]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[    9.874186][  T213]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.874189][  T213]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[    9.874195][  T213]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.874202][  T213]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.874205][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874208][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.874212][  T213]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.874216][  T213]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.874220][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874222][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.874226][  T213]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.874230][  T213]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.874231][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.874237][  T213]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.874239][  T213]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.874240][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874242][  T213]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.874246][  T213]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.874248][  T213]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.874251][  T213]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.874254][  T213]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.874256][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.874258][  T213]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[    9.874262][  T213]  ? bond_poll_controller (drivers/net/bonding/bond_main.c:1449)
[    9.874265][  T213]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[    9.874269][  T213]  _printk (kernel/printk/printk.c:2504)
[    9.874272][  T213]  ? snapshot_read.cold (user.c:?)
[    9.874276][  T213]  ? br_multicast_flood (??:?)
[    9.874280][  T213]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[    9.874281][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[    9.874283][  T213]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.874288][  T213]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[    9.874291][  T213]  br_init_port (net/bridge/br_stp_if.c:39)
[    9.874294][  T213]  new_nbp (net/bridge/br_if.c:449)
[    9.874298][  T213]  br_add_if (net/bridge/br_if.c:592)
[    9.874301][  T213]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.874306][  T213]  do_set_master (net/core/rtnetlink.c:3071)
[    9.874311][  T213]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[    9.874314][  T213]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[    9.874318][  T213]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[    9.874320][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.874323][  T213]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.874326][  T213]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.874328][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.874330][  T213]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.874333][  T213]  ? kasan_save_stack (mm/kasan/common.c:58)
[    9.874335][  T213]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.874336][  T213]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.874338][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.874340][  T213]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[    9.874343][  T213]  ? ___sys_sendmsg (net/socket.c:2757)
[    9.874347][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.874349][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[    9.874352][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874354][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.874356][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874357][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874359][  T213]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[    9.874362][  T213]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[    9.874363][  T213]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[    9.874365][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[    9.874369][  T213]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[    9.874371][  T213]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.874377][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[    9.874383][  T213]  rtnl_newlink (net/core/rtnetlink.c:4215)
[    9.874389][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.874391][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.874396][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.874398][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.874401][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.874403][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.874407][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.874409][  T213]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.874413][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.874415][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.874420][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.874422][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.874425][  T213]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[    9.874427][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.874431][  T213]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.874437][  T213]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.874438][  T213]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.874443][  T213]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.874447][  T213]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.874449][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.874454][  T213]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[    9.874458][  T213]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[    9.874462][  T213]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.874468][  T213]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[    9.874470][  T213]  ? copy_msghdr_from_user (net/socket.c:2650)
[    9.874472][  T213]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[    9.874473][  T213]  ? move_addr_to_kernel (net/socket.c:258)
[    9.874481][  T213]  ___sys_sendmsg (net/socket.c:2767)
[    9.874483][  T213]  ? copy_msghdr_from_user (net/socket.c:2619)
[    9.874499][  T213]  __sys_sendmsg (net/socket.c:2799)
[    9.874502][  T213]  ? __sys_sendmsg_sock (net/socket.c:2780)
[    9.874508][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.874511][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.874513][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.874516][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.874518][  T213] RIP: 0033:0x7fe08659654e
[    9.874522][  T213] 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
[    9.874524][  T213] RSP: 002b:00007fff65789e20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.874526][  T213] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe08659654e
[    9.874527][  T213] RDX: 0000000000000000 RSI: 00007fff65789ed0 RDI: 0000000000000005
[    9.874528][  T213] RBP: 00007fff65789e30 R08: 0000000000000000 R09: 0000000000000000
[    9.874529][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ba5b
[    9.874530][  T213] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6578a590
| [   10.301990][    C0]
| [   10.302061][    C0]
| [   10.302061][    C0] stack backtrace:
| [   10.302292][    C0] Tainted: [W]=WARN
[   10.302293][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.302295][    C0] Call Trace:
[   10.302296][    C0]  <IRQ>
[   10.302297][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.302300][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   10.302303][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   10.302306][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   10.302308][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   10.302310][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   10.302313][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.302315][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.302316][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.302319][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.302321][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.302323][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   10.302324][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.302325][    C0]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.302327][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.302329][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   10.302330][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   10.302331][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   10.302335][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.302337][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.302339][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.302341][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   10.302342][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.302344][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   10.302345][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.302348][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.302350][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   10.302351][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   10.302353][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.302356][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.302357][    C0]  handle_softirqs (kernel/softirq.c:645)
[   10.302359][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.302361][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   10.302363][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   10.302365][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   10.302367][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   10.302369][    C0]  </IRQ>
[   10.302369][    C0]  <TASK>
[   10.302370][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   10.302372][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   10.302373][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   10.302375][    C0] Code: 48 8b 3d 94 02 09 02 e8 1f 00 00 00 48 2b 05 58 93 a6 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 46 1b 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 02 09 02 	mov    0x2090294(%rip),%rdi        # 0x209029b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 a6 00 	sub    0xa69358(%rip),%rax        # 0xa6936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 46 1b 00 	verw   0x1b4613(%rip)        # 0x1b463b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   10.302377][    C0] RSP: 0018:ffffffffb3207cf8 EFLAGS: 00000296
[   10.302379][    C0] RAX: 0000000000054bbd RBX: ffffffffb321c600 RCX: ffffffffb00fa307
[   10.302381][    C0] RDX: ffffffffb321c600 RSI: ffffffffb30a7f5f RDI: ffffffffb2a8f560
[   10.302382][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   10.302382][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff6640fa2
[   10.302383][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   10.302385][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.302387][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.302389][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   10.302390][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   10.302392][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.302394][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   10.302396][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   10.302399][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.302400][    C0]  do_idle (kernel/sched/idle.c:355)
[   10.302402][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   10.302404][    C0]  rest_init (init/main.c:727)
[   10.302405][    C0]  ? __cpuidle_text_end (??:?)
[   10.302408][    C0]  ? rest_init (init/main.c:727)
[   10.302410][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   10.302413][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   10.302415][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   10.302417][    C0]  start_kernel (init/main.c:1185)
[   10.302419][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   10.302421][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   10.302423][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   11.502194][  T292] softirqs last disabled at (0): 0x0
| [   11.502196][  T292] Preemption disabled at:
| [   11.502196][  T292] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.502207][  T292] Tainted: [W]=WARN
[   11.502208][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.502210][  T292] Call Trace:
[   11.502211][  T292]  <TASK>
[   11.502212][  T292]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.502217][  T292]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.502219][  T292]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.502223][  T292]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.502225][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502229][  T292]  __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))
[   11.502233][  T292]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.502235][  T292]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.502239][  T292]  ? 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)
[   11.502240][  T292]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.502242][  T292]  put_chars (drivers/char/virtio_console.c:1176)
[   11.502245][  T292]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.502246][  T292]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.502248][  T292]  ? desc_read (kernel/printk/printk_ringbuffer.c:500)
[   11.502250][  T292]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   11.502252][  T292]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.502256][  T292]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.502258][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502259][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502262][  T292]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.502264][  T292]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.502265][  T292]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   11.502267][  T292]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   11.502270][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502271][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502272][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502273][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502275][  T292]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   11.502277][  T292]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.502278][  T292]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.502281][  T292]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.502282][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502284][  T292]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.502285][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502286][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502288][  T292]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.502289][  T292]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   11.502291][  T292]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.502293][  T292]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.502295][  T292]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.502297][  T292]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.502298][  T292]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.502301][  T292]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.502302][  T292]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.502305][  T292]  ? ___sys_sendmsg (net/socket.c:2767)
[   11.502306][  T292]  ? __sys_sendmsg (net/socket.c:2799)
[   11.502308][  T292]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.502310][  T292]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.502312][  T292]  _printk (kernel/printk/printk.c:2504)
[   11.502315][  T292]  ? snapshot_read.cold (user.c:?)
[   11.502317][  T292]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.502320][  T292]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.502321][  T292]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.502323][  T292]  ? netdev_notice (net/core/dev.c:13194)
[   11.502325][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502326][  T292]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   11.502327][  T292]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   11.502330][  T292]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   11.502332][  T292]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   11.502333][  T292]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   11.502336][  T292]  dev_set_allmulti (net/core/dev_api.c:315)
[   11.502340][  T292]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   11.502343][  T292]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.502345][  T292]  br_dev_delete (net/bridge/br_if.c:387)
[   11.502347][  T292]  rtnl_dellink (net/core/rtnetlink.c:3651 net/core/rtnetlink.c:3694)
[   11.502349][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502351][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502353][  T292]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   11.502354][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502360][  T292]  ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495)
[   11.502363][  T292]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.502364][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502365][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502367][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502368][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502370][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502371][  T292]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   11.502374][  T292]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.502375][  T292]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.502378][  T292]  ? __kernel_text_address (kernel/extable.c:79)
[   11.502380][  T292]  ? write_profile (profile.c:?)
[   11.502382][  T292]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   11.502384][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502385][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502387][  T292]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.502390][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502392][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502393][  T292]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   11.502395][  T292]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.502397][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.502399][  T292]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   11.502401][  T292]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   11.502404][  T292]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.502406][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.502407][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502409][  T292]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.502411][  T292]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   11.502413][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502414][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502416][  T292]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.502418][  T292]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.502420][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502421][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502422][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.502424][  T292]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.502426][  T292]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.502428][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502430][  T292]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.502432][  T292]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.502433][  T292]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.502434][  T292]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.502435][  T292]  ? move_addr_to_kernel (net/socket.c:258)
[   11.502437][  T292]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   11.502439][  T292]  ___sys_sendmsg (net/socket.c:2767)
[   11.502441][  T292]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.502445][  T292]  __sys_sendmsg (net/socket.c:2799)
[   11.502447][  T292]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.502449][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.502451][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.502452][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.502454][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.502456][  T292] RIP: 0033:0x7fe5d063354e
[   11.502458][  T292] 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
[   11.502459][  T292] RSP: 002b:00007ffcf42a8bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.502463][  T292] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe5d063354e
[   11.502464][  T292] RDX: 0000000000000000 RSI: 00007ffcf42a8c70 RDI: 0000000000000005
[   11.502465][  T292] RBP: 00007ffcf42a8bd0 R08: 0000000000000000 R09: 0000000000000000
[   11.502466][  T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ba5c


Finger prints:
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock