======================================
| [   11.096376][  T213] softirqs last disabled at (19562): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.096378][  T213] Preemption disabled at:
| [   11.096379][  T213] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.096388][  T213] Tainted: [W]=WARN
[   11.096389][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.096391][  T213] Call Trace:
[   11.096392][  T213]  <TASK>
[   11.096394][  T213]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.096400][  T213]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.096402][  T213]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.096406][  T213]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.096410][  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)
[   11.096415][  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))
[   11.096418][  T213]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.096423][  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)
[   11.096426][  T213]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.096429][  T213]  put_chars (drivers/char/virtio_console.c:1176)
[   11.096432][  T213]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.096436][  T213]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.096440][  T213]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.096442][  T213]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.096444][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096446][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096450][  T213]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.096452][  T213]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.096455][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096459][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.096462][  T213]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.096466][  T213]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.096468][  T213]  ? 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))
[   11.096471][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096473][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.096477][  T213]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.096483][  T213]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.096485][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096490][  T213]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.096493][  T213]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.096494][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096497][  T213]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.096500][  T213]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.096502][  T213]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.096505][  T213]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.096509][  T213]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.096511][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.096513][  T213]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.096517][  T213]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.096520][  T213]  _printk (kernel/printk/printk.c:2504)
[   11.096524][  T213]  ? snapshot_read.cold (user.c:?)
[   11.096527][  T213]  ? br_multicast_flood (??:?) bridge
[   11.096540][  T213]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.096541][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.096543][  T213]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.096547][  T213] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.096557][  T213] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.096565][  T213] new_nbp (net/bridge/br_if.c:449) bridge
[   11.096574][  T213] br_add_if (net/bridge/br_if.c:592) bridge
[   11.096581][  T213]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.096585][  T213]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.096587][  T213]  ? __kernel_text_address (kernel/extable.c:79)
[   11.096591][  T213]  do_set_master (net/core/rtnetlink.c:3071)
[   11.096596][  T213]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.096599][  T213]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.096602][  T213]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.096603][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.096605][  T213]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.096609][  T213]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.096612][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.096614][  T213]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.096616][  T213]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.096619][  T213]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.096621][  T213]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.096623][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096625][  T213]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.096628][  T213]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.096632][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.096634][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.096637][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096639][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.096641][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096642][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096645][  T213]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.096648][  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)
[   11.096650][  T213]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.096652][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.096655][  T213]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.096657][  T213]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.096662][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.096667][  T213]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.096672][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.096673][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096678][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.096680][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.096682][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.096684][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.096687][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.096689][  T213]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.096692][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.096693][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096698][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.096700][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.096703][  T213]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.096705][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.096707][  T213]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.096713][  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))
[   11.096715][  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))
[   11.096719][  T213]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.096722][  T213]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.096725][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.096729][  T213]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.096733][  T213]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.096736][  T213]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.096742][  T213]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.096744][  T213]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.096746][  T213]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.096748][  T213]  ? move_addr_to_kernel (net/socket.c:258)
[   11.096755][  T213]  ___sys_sendmsg (net/socket.c:2767)
[   11.096757][  T213]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.096773][  T213]  __sys_sendmsg (net/socket.c:2799)
[   11.096775][  T213]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.096781][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.096785][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.096787][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.096790][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.096793][  T213] RIP: 0033:0x7f98e933254e
[   11.096796][  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
[   11.096798][  T213] RSP: 002b:00007fff33d76b90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.096801][  T213] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f98e933254e
[   11.096802][  T213] RDX: 0000000000000000 RSI: 00007fff33d76c40 RDI: 0000000000000005
[   11.096803][  T213] RBP: 00007fff33d76ba0 R08: 0000000000000000 R09: 0000000000000000
[   11.096804][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91648d
[   11.096805][  T213] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff33d77300
| [   16.819810][  T252] softirqs last disabled at (14182): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   16.819819][  T252] Preemption disabled at:
| [   16.819819][  T252] 0x0
| [   16.819830][  T252] Tainted: [W]=WARN
[   16.819831][  T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.819833][  T252] Call Trace:
[   16.819834][  T252]  <TASK>
[   16.819836][  T252]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.819843][  T252]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.819847][  T252]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.819852][  T252]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.819857][  T252]  __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))
[   16.819859][  T252]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.819865][  T252]  ? 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)
[   16.819868][  T252]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.819872][  T252]  put_chars (drivers/char/virtio_console.c:1176)
[   16.819875][  T252]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.819876][  T252]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   16.819880][  T252]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   16.819884][  T252]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.819887][  T252]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.819889][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.819891][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.819895][  T252]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.819896][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.819901][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.819905][  T252]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.819910][  T252]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.819911][  T252]  ? 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))
[   16.819915][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.819919][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.819923][  T252]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.819928][  T252]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.819930][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.819935][  T252]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.819944][  T252]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.819946][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.819949][  T252]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.819953][  T252]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.819954][  T252]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.819958][  T252]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.819963][  T252]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.819965][  T252]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.819967][  T252]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.819970][  T252]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.819975][  T252]  _printk (kernel/printk/printk.c:2504)
[   16.819979][  T252]  ? snapshot_read.cold (user.c:?)
[   16.819987][  T252] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.819998][  T252] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   16.820008][  T252] br_device_event (net/bridge/br.c:111) bridge
[   16.820016][  T252]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   16.820020][  T252]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   16.820027][  T252]  notifier_call_chain (kernel/notifier.c:85)
[   16.820033][  T252]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   16.820038][  T252]  ? netif_change_name (net/core/dev.c:1517)
[   16.820042][  T252]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   16.820045][  T252]  ? __kernel_text_address (kernel/extable.c:79)
[   16.820047][  T252]  ? write_profile (profile.c:?)
[   16.820050][  T252]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.820055][  T252]  netif_change_flags (net/core/dev.c:9882)
[   16.820059][  T252]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   16.820063][  T252]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.820065][  T252]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.820066][  T252]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.820068][  T252]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.820072][  T252]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.820074][  T252]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.820076][  T252]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.820079][  T252]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.820082][  T252]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.820084][  T252]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.820087][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.820089][  T252]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.820092][  T252]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.820096][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.820098][  T252]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.820101][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.820104][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.820105][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.820107][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.820110][  T252]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.820114][  T252]  ? __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)
[   16.820116][  T252]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.820118][  T252]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.820122][  T252]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.820127][  T252]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.820133][  T252]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.820139][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.820141][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.820146][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.820148][  T252]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.820150][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.820152][  T252]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.820156][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.820158][  T252]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.820162][  T252]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.820163][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.820168][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.820170][  T252]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.820173][  T252]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.820175][  T252]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.820179][  T252]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.820185][  T252]  ? 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))
[   16.820187][  T252]  ? 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))
[   16.820191][  T252]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.820196][  T252]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.820198][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.820203][  T252]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.820207][  T252]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.820211][  T252]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.820217][  T252]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.820219][  T252]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.820222][  T252]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.820224][  T252]  ? move_addr_to_kernel (net/socket.c:258)
[   16.820232][  T252]  ___sys_sendmsg (net/socket.c:2767)
[   16.820235][  T252]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.820252][  T252]  __sys_sendmsg (net/socket.c:2799)
[   16.820255][  T252]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.820262][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.820266][  T252]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.820268][  T252]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.820271][  T252]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.820274][  T252] RIP: 0033:0x7fb6a750354e
[   16.820276][  T252] 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
[   16.820279][  T252] RSP: 002b:00007ffd180534a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.820281][  T252] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb6a750354e
[   16.820283][  T252] RDX: 0000000000000000 RSI: 00007ffd18053550 RDI: 0000000000000005
[   16.820284][  T252] RBP: 00007ffd180534b0 R08: 0000000000000000 R09: 0000000000000000
[   16.820284][  T252] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916493


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars