======================================
| [    9.840719][  T210] softirqs last disabled at (29626): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [    9.840722][  T210] Preemption disabled at:
| [    9.840723][  T210] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.840735][  T210] Tainted: [W]=WARN
[    9.840736][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.840738][  T210] Call Trace:
[    9.840741][  T210]  <TASK>
[    9.840743][  T210]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.840750][  T210]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.840753][  T210]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.840759][  T210]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.840765][  T210]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.840773][  T210]  __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))
[    9.840777][  T210]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.840787][  T210]  ? 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)
[    9.840790][  T210]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.840796][  T210]  put_chars (drivers/char/virtio_console.c:1176)
[    9.840799][  T210]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[    9.840803][  T210]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.840809][  T210]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[    9.840819][  T210]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.840831][  T210]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.840835][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.840840][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.840848][  T210]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.840854][  T210]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.840861][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.840865][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.840872][  T210]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.840879][  T210]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.840882][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.840892][  T210]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.840896][  T210]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.840899][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.840902][  T210]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.840909][  T210]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.840912][  T210]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.840917][  T210]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.840923][  T210]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.840926][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.840929][  T210]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[    9.840935][  T210]  ? bond_poll_controller (drivers/net/bonding/bond_main.c:1449)
[    9.840940][  T210]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[    9.840946][  T210]  _printk (kernel/printk/printk.c:2504)
[    9.840951][  T210]  ? snapshot_read.cold (user.c:?)
[    9.840957][  T210]  ? br_multicast_flood (??:?)
[    9.840962][  T210]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[    9.840965][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[    9.840967][  T210]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.840976][  T210]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[    9.840982][  T210]  br_init_port (net/bridge/br_stp_if.c:39)
[    9.840987][  T210]  new_nbp (net/bridge/br_if.c:449)
[    9.840994][  T210]  br_add_if (net/bridge/br_if.c:592)
[    9.841000][  T210]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.841009][  T210]  do_set_master (net/core/rtnetlink.c:3071)
[    9.841017][  T210]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[    9.841023][  T210]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[    9.841028][  T210]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[    9.841031][  T210]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.841035][  T210]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.841040][  T210]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.841044][  T210]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.841047][  T210]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.841052][  T210]  ? kasan_save_stack (mm/kasan/common.c:58)
[    9.841055][  T210]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.841057][  T210]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.841061][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.841064][  T210]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[    9.841069][  T210]  ? ___sys_sendmsg (net/socket.c:2757)
[    9.841075][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.841079][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[    9.841084][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.841087][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.841090][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.841092][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.841095][  T210]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[    9.841100][  T210]  ? __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)
[    9.841102][  T210]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[    9.841106][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[    9.841113][  T210]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[    9.841115][  T210]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.841126][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[    9.841136][  T210]  rtnl_newlink (net/core/rtnetlink.c:4215)
[    9.841146][  T210]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.841150][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.841158][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.841161][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.841165][  T210]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.841169][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.841176][  T210]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.841185][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.841191][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.841193][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.841202][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.841205][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.841212][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[    9.841215][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.841221][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.841233][  T210]  ? 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))
[    9.841235][  T210]  ? 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))
[    9.841243][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.841251][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.841255][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.841263][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[    9.841271][  T210]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[    9.841278][  T210]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.841287][  T210]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[    9.841291][  T210]  ? copy_msghdr_from_user (net/socket.c:2650)
[    9.841294][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[    9.841297][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[    9.841311][  T210]  ___sys_sendmsg (net/socket.c:2767)
[    9.841316][  T210]  ? copy_msghdr_from_user (net/socket.c:2619)
[    9.841350][  T210]  __sys_sendmsg (net/socket.c:2799)
[    9.841355][  T210]  ? __sys_sendmsg_sock (net/socket.c:2780)
[    9.841366][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.841372][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.841375][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.841381][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.841384][  T210] RIP: 0033:0x7f062b40454e
[    9.841390][  T210] 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
[    9.841392][  T210] RSP: 002b:00007ffc268453e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.841397][  T210] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f062b40454e
[    9.841399][  T210] RDX: 0000000000000000 RSI: 00007ffc26845490 RDI: 0000000000000005
[    9.841400][  T210] RBP: 00007ffc268453f0 R08: 0000000000000000 R09: 0000000000000000
[    9.841402][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911115
[    9.841403][  T210] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc26845b50
| [   10.350667][    C2]
| [   10.350734][    C2]
| [   10.350734][    C2] stack backtrace:
| [   10.350901][    C2] Tainted: [W]=WARN
[   10.350902][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.350904][    C2] Call Trace:
[   10.350905][    C2]  <IRQ>
[   10.350907][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.350911][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   10.350914][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   10.350917][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   10.350920][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   10.350921][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   10.350924][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.350926][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.350928][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350930][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.350933][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.350934][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   10.350936][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.350937][    C2]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   10.350939][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.350940][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   10.350942][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   10.350943][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   10.350946][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.350948][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.350950][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350952][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   10.350953][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   10.350956][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   10.350957][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.350960][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.350962][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   10.350964][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   10.350965][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.350968][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350969][    C2]  handle_softirqs (kernel/softirq.c:645)
[   10.350972][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.350974][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   10.350976][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   10.350978][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   10.350979][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   10.350981][    C2]  </IRQ>
[   10.350982][    C2]  <TASK>
[   10.350982][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.350984][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   10.350986][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   10.350988][    C2] Code: 48 8b 3d 94 12 09 02 e8 1f 00 00 00 48 2b 05 58 a3 a6 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 56 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 12 09 02 	mov    0x2091294(%rip),%rdi        # 0x209129b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 a6 00 	sub    0xa6a358(%rip),%rax        # 0xa6a36b
  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 56 1b 00 	verw   0x1b5613(%rip)        # 0x1b563b
  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
[   10.350990][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   10.350992][    C2] RAX: 000000000004464d RBX: ff11000001bf46c0 RCX: ffffffffb06fa307
[   10.350994][    C2] RDX: ff11000001bf46c0 RSI: ffffffffb36a7f75 RDI: ffffffffb308f560
[   10.350994][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   10.350995][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   10.350996][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   10.350998][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.351000][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   10.351002][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   10.351004][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.351005][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   10.351007][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   10.351009][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.351011][    C2]  do_idle (kernel/sched/idle.c:355)
[   10.351013][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   10.351014][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   10.351016][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   10.351018][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   12.349275][  T328] softirqs last disabled at (0): 0x0
| [   12.349277][  T328] Preemption disabled at:
| [   12.349278][  T328] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.349289][  T328] Tainted: [W]=WARN
[   12.349290][  T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.349292][  T328] Call Trace:
[   12.349294][  T328]  <TASK>
[   12.349295][  T328]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.349300][  T328]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.349301][  T328]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.349305][  T328]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.349308][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349311][  T328]  __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))
[   12.349315][  T328]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.349317][  T328]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.349321][  T328]  ? 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)
[   12.349323][  T328]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.349325][  T328]  put_chars (drivers/char/virtio_console.c:1176)
[   12.349327][  T328]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.349329][  T328]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.349333][  T328]  ? desc_read (kernel/printk/printk_ringbuffer.c:500)
[   12.349335][  T328]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   12.349337][  T328]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.349342][  T328]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.349343][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349345][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349348][  T328]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.349350][  T328]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.349351][  T328]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   12.349353][  T328]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   12.349356][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349357][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349358][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349359][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349361][  T328]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   12.349362][  T328]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.349364][  T328]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.349367][  T328]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.349368][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349370][  T328]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.349371][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349372][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349374][  T328]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.349376][  T328]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   12.349377][  T328]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.349380][  T328]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.349381][  T328]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.349383][  T328]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.349384][  T328]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.349388][  T328]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.349389][  T328]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.349392][  T328]  ? ___sys_sendmsg (net/socket.c:2767)
[   12.349393][  T328]  ? __sys_sendmsg (net/socket.c:2799)
[   12.349395][  T328]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.349397][  T328]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.349399][  T328]  _printk (kernel/printk/printk.c:2504)
[   12.349403][  T328]  ? snapshot_read.cold (user.c:?)
[   12.349405][  T328]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.349407][  T328]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.349409][  T328]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.349411][  T328]  ? netdev_notice (net/core/dev.c:13194)
[   12.349413][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349414][  T328]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   12.349416][  T328]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   12.349419][  T328]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   12.349420][  T328]  ? 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)
[   12.349422][  T328]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   12.349425][  T328]  dev_set_allmulti (net/core/dev_api.c:315)
[   12.349428][  T328]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   12.349432][  T328]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.349434][  T328]  br_dev_delete (net/bridge/br_if.c:387)
[   12.349436][  T328]  rtnl_dellink (net/core/rtnetlink.c:3651 net/core/rtnetlink.c:3694)
[   12.349439][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349440][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349442][  T328]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   12.349444][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349449][  T328]  ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495)
[   12.349452][  T328]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.349454][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349455][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349456][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349458][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349459][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349461][  T328]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   12.349464][  T328]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.349465][  T328]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.349468][  T328]  ? __kernel_text_address (kernel/extable.c:79)
[   12.349469][  T328]  ? write_profile (profile.c:?)
[   12.349472][  T328]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.349474][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349475][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349476][  T328]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.349480][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349482][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349483][  T328]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   12.349485][  T328]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.349488][  T328]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.349489][  T328]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   12.349491][  T328]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   12.349495][  T328]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.349496][  T328]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.349498][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349500][  T328]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.349501][  T328]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   12.349504][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349505][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349507][  T328]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.349509][  T328]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.349511][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349512][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349513][  T328]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.349515][  T328]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.349518][  T328]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.349519][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349521][  T328]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.349523][  T328]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.349524][  T328]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.349526][  T328]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.349527][  T328]  ? move_addr_to_kernel (net/socket.c:258)
[   12.349528][  T328]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   12.349531][  T328]  ___sys_sendmsg (net/socket.c:2767)
[   12.349532][  T328]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.349537][  T328]  __sys_sendmsg (net/socket.c:2799)
[   12.349539][  T328]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.349541][  T328]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.349543][  T328]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.349544][  T328]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.349546][  T328]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.349548][  T328] RIP: 0033:0x7fdb7c50554e
[   12.349550][  T328] 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
[   12.349551][  T328] RSP: 002b:00007ffd6f6866c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.349555][  T328] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fdb7c50554e
[   12.349556][  T328] RDX: 0000000000000000 RSI: 00007ffd6f686770 RDI: 0000000000000005
[   12.349557][  T328] RBP: 00007ffd6f6866d0 R08: 0000000000000000 R09: 0000000000000000
[   12.349558][  T328] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911117


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