======================================
| [   10.127988][  T186] softirqs last disabled at (47711): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.127990][  T186] Preemption disabled at:
| [   10.127991][  T186] 0x0
| [   10.128001][  T186] Tainted: [W]=WARN
[   10.128002][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.128004][  T186] Call Trace:
[   10.128005][  T186]  <TASK>
[   10.128007][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.128013][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.128017][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.128021][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.128027][  T186]  __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))
[   10.128029][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.128035][  T186]  ? 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)
[   10.128037][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.128040][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[   10.128043][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.128044][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.128049][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.128054][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.128060][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.128062][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.128065][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.128069][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.128072][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.128074][  T186]  ? 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))
[   10.128077][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.128080][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.128083][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.128087][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.128089][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.128094][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.128097][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.128099][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.128101][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.128104][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.128106][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.128109][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.128113][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.128117][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.128120][  T186]  _printk (kernel/printk/printk.c:2504)
[   10.128124][  T186]  ? snapshot_read.cold (user.c:?)
[   10.128127][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.128129][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.128133][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.128136][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.128139][  T186]  ? exit_notify (kernel/exit.c:780)
[   10.128141][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.128144][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.128148][  T186]  do_group_exit (kernel/exit.c:1151)
[   10.128151][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.128152][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.128155][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.128158][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.128161][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.128163][  T186] RIP: 0033:0x7f9644d211b8
[   10.128165][  T186] Code: Unable to access opcode bytes at 0x7f9644d2118e.

Code starting with the faulting instruction
===========================================
[   10.128166][  T186] RSP: 002b:00007ffc12ea8b98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.128169][  T186] RAX: ffffffffffffffda RBX: 00007f9644e51f88 RCX: 00007f9644d211b8
[   10.128171][  T186] RDX: 00007f9644a6bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.128172][  T186] RBP: 00007ffc12ea8bf0 R08: 0000000000000000 R09: 0000000000008010
[   10.128174][  T186] R10: 00007ffc12ea89b0 R11: 0000000000000246 R12: 0000000000000001
[   10.128175][  T186] R13: 0000000000000000 R14: 00007f9644e50680 R15: 00007f9644e51fa0
| [   11.725700][  T254] softirqs last disabled at (20788): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.725702][  T254] Preemption disabled at:
| [   11.725703][  T254] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.725712][  T254] Tainted: [W]=WARN
[   11.725713][  T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.725714][  T254] Call Trace:
[   11.725716][  T254]  <TASK>
[   11.725717][  T254]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.725723][  T254]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.725725][  T254]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.725730][  T254]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.725734][  T254]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.725739][  T254]  __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))
[   11.725742][  T254]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.725747][  T254]  ? 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)
[   11.725750][  T254]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.725753][  T254]  put_chars (drivers/char/virtio_console.c:1176)
[   11.725756][  T254]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.725760][  T254]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.725763][  T254]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.725766][  T254]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.725768][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.725769][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.725773][  T254]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.725775][  T254]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.725778][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725782][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.725786][  T254]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.725789][  T254]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.725791][  T254]  ? 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))
[   11.725794][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725796][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.725800][  T254]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.725804][  T254]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.725806][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.725811][  T254]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.725814][  T254]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.725816][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725818][  T254]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.725822][  T254]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.725823][  T254]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.725826][  T254]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.725830][  T254]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.725832][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.725834][  T254]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.725838][  T254]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.725842][  T254]  _printk (kernel/printk/printk.c:2504)
[   11.725845][  T254]  ? snapshot_read.cold (user.c:?)
[   11.725849][  T254]  ? br_multicast_flood (??:?) bridge
[   11.725861][  T254]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.725862][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.725864][  T254]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.725868][  T254] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.725878][  T254] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.725886][  T254] new_nbp (net/bridge/br_if.c:449) bridge
[   11.725895][  T254] br_add_if (net/bridge/br_if.c:592) bridge
[   11.725902][  T254]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.725906][  T254]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.725908][  T254]  ? __kernel_text_address (kernel/extable.c:79)
[   11.725912][  T254]  do_set_master (net/core/rtnetlink.c:3071)
[   11.725917][  T254]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.725920][  T254]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.725923][  T254]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.725924][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.725927][  T254]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.725930][  T254]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.725933][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.725934][  T254]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.725937][  T254]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.725940][  T254]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.725942][  T254]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.725944][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.725946][  T254]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.725949][  T254]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.725953][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.725955][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.725958][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725960][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.725964][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725966][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.725968][  T254]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.725972][  T254]  ? __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)
[   11.725974][  T254]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.725976][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.725979][  T254]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.725981][  T254]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.725986][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.725991][  T254]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.725996][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.725998][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.726002][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.726004][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.726006][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.726008][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.726012][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.726014][  T254]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.726017][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.726018][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.726022][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.726024][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.726027][  T254]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.726029][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.726032][  T254]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.726038][  T254]  ? 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))
[   11.726039][  T254]  ? 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))
[   11.726043][  T254]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.726047][  T254]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.726050][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.726054][  T254]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.726057][  T254]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.726061][  T254]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.726067][  T254]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.726069][  T254]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.726071][  T254]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.726073][  T254]  ? move_addr_to_kernel (net/socket.c:258)
[   11.726080][  T254]  ___sys_sendmsg (net/socket.c:2767)
[   11.726082][  T254]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.726098][  T254]  __sys_sendmsg (net/socket.c:2799)
[   11.726101][  T254]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.726107][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.726110][  T254]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.726113][  T254]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.726116][  T254]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.726118][  T254] RIP: 0033:0x7f29992dc54e
[   11.726121][  T254] 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
[   11.726123][  T254] RSP: 002b:00007ffc3107e160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.726125][  T254] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f29992dc54e
[   11.726127][  T254] RDX: 0000000000000000 RSI: 00007ffc3107e210 RDI: 0000000000000005
[   11.726128][  T254] RBP: 00007ffc3107e170 R08: 0000000000000000 R09: 0000000000000000
[   11.726128][  T254] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91056f
[   11.726129][  T254] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3107e8d0
| [   19.762152][  T322] softirqs last disabled at (14418): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   19.762154][  T322] Preemption disabled at:
| [   19.762155][  T322] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.762165][  T322] Tainted: [W]=WARN
[   19.762166][  T322] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.762167][  T322] Call Trace:
[   19.762169][  T322]  <TASK>
[   19.762170][  T322]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.762176][  T322]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.762179][  T322]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.762183][  T322]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.762188][  T322]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.762193][  T322]  __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))
[   19.762195][  T322]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.762201][  T322]  ? 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)
[   19.762204][  T322]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.762207][  T322]  put_chars (drivers/char/virtio_console.c:1176)
[   19.762210][  T322]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.762212][  T322]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.762216][  T322]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.762222][  T322]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.762228][  T322]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.762230][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762233][  T322]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.762237][  T322]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.762241][  T322]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.762242][  T322]  ? 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))
[   19.762246][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762248][  T322]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.762252][  T322]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.762256][  T322]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.762258][  T322]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.762264][  T322]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.762266][  T322]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.762268][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762271][  T322]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.762274][  T322]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.762276][  T322]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.762280][  T322]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.762283][  T322]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.762285][  T322]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.762287][  T322]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.762290][  T322]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.762292][  T322]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.762294][  T322]  ? ___sys_sendmsg (net/socket.c:2767)
[   19.762296][  T322]  ? __sys_sendmsg (net/socket.c:2799)
[   19.762298][  T322]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.762303][  T322]  _printk (kernel/printk/printk.c:2504)
[   19.762307][  T322]  ? snapshot_read.cold (user.c:?)
[   19.762311][  T322]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.762315][  T322]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.762318][  T322]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.762321][  T322]  ? netdev_notice (net/core/dev.c:13194)
[   19.762325][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762327][  T322]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   19.762330][  T322]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   19.762331][  T322]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.762334][  T322]  ? 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)
[   19.762337][  T322]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   19.762342][  T322]  dev_set_allmulti (net/core/dev_api.c:315)
[   19.762346][  T322] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   19.762359][  T322]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   19.762365][  T322] br_del_if (net/bridge/br_if.c:732) bridge
[   19.762373][  T322]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.762376][  T322]  do_set_master (net/core/rtnetlink.c:3055)
[   19.762380][  T322]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   19.762384][  T322]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   19.762388][  T322]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   19.762389][  T322]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.762392][  T322]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.762395][  T322]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.762398][  T322]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.762400][  T322]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.762402][  T322]  ? kasan_save_stack (mm/kasan/common.c:58)
[   19.762405][  T322]  ? kasan_save_stack (mm/kasan/common.c:57)
[   19.762407][  T322]  ? kasan_save_track (mm/kasan/common.c:78)
[   19.762410][  T322]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.762412][  T322]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   19.762414][  T322]  ? ___sys_sendmsg (net/socket.c:2757)
[   19.762417][  T322]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.762419][  T322]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.762422][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762424][  T322]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.762426][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762427][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762430][  T322]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   19.762433][  T322]  ? __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)
[   19.762435][  T322]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   19.762437][  T322]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.762441][  T322]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.762443][  T322]  ? nla_get_range_signed (lib/nlattr.c:270)
[   19.762448][  T322]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   19.762453][  T322]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   19.762458][  T322]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.762460][  T322]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.762465][  T322]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.762467][  T322]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.762469][  T322]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.762471][  T322]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.762474][  T322]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.762476][  T322]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.762480][  T322]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.762481][  T322]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.762486][  T322]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.762487][  T322]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.762491][  T322]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.762493][  T322]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.762496][  T322]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.762502][  T322]  ? 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))
[   19.762503][  T322]  ? 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))
[   19.762508][  T322]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.762511][  T322]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.762514][  T322]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.762518][  T322]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.762522][  T322]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.762526][  T322]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   19.762532][  T322]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.762534][  T322]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.762536][  T322]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   19.762538][  T322]  ? move_addr_to_kernel (net/socket.c:258)
[   19.762545][  T322]  ___sys_sendmsg (net/socket.c:2767)
[   19.762548][  T322]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.762564][  T322]  __sys_sendmsg (net/socket.c:2799)
[   19.762567][  T322]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.762573][  T322]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.762577][  T322]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.762579][  T322]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.762582][  T322]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.762584][  T322] RIP: 0033:0x7ffb4ef8a54e
[   19.762588][  T322] 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
[   19.762590][  T322] RSP: 002b:00007fffcc52b4e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.762593][  T322] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffb4ef8a54e
[   19.762594][  T322] RDX: 0000000000000000 RSI: 00007fffcc52b590 RDI: 0000000000000005
[   19.762595][  T322] RBP: 00007fffcc52b4f0 R08: 0000000000000000 R09: 0000000000000000
[   19.762596][  T322] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910577
[   19.762597][  T322] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffcc52bc50
| [   21.892572][  T327] softirqs last disabled at (13428): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.892575][  T327] Preemption disabled at:
| [   21.892575][  T327] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.892585][  T327] Tainted: [W]=WARN
[   21.892586][  T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.892588][  T327] Call Trace:
[   21.892589][  T327]  <TASK>
[   21.892591][  T327]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.892597][  T327]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.892599][  T327]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.892604][  T327]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.892608][  T327]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.892613][  T327]  __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))
[   21.892616][  T327]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.892621][  T327]  ? 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)
[   21.892624][  T327]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.892627][  T327]  put_chars (drivers/char/virtio_console.c:1176)
[   21.892629][  T327]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   21.892631][  T327]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.892634][  T327]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.892638][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.892640][  T327]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.892644][  T327]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.892646][  T327]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.892648][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892650][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892654][  T327]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.892656][  T327]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.892659][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892661][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.892665][  T327]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.892672][  T327]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.892674][  T327]  ? 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))
[   21.892677][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892680][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.892684][  T327]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.892688][  T327]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.892690][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892695][  T327]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.892698][  T327]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.892700][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892702][  T327]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.892706][  T327]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.892707][  T327]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.892711][  T327]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.892715][  T327]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.892717][  T327]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.892720][  T327]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.892723][  T327]  _printk (kernel/printk/printk.c:2504)
[   21.892727][  T327]  ? snapshot_read.cold (user.c:?)
[   21.892731][  T327]  ? br_multicast_flood (??:?) bridge
[   21.892744][  T327]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.892745][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.892746][  T327]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.892751][  T327] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.892761][  T327] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   21.892770][  T327] new_nbp (net/bridge/br_if.c:449) bridge
[   21.892779][  T327] br_add_if (net/bridge/br_if.c:592) bridge
[   21.892787][  T327]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.892791][  T327]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.892794][  T327]  ? __kernel_text_address (kernel/extable.c:79)
[   21.892798][  T327]  do_set_master (net/core/rtnetlink.c:3071)
[   21.892802][  T327]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.892805][  T327]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.892809][  T327]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.892810][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.892812][  T327]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.892815][  T327]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.892818][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.892819][  T327]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.892822][  T327]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.892825][  T327]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.892827][  T327]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.892830][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892832][  T327]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   21.892834][  T327]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.892839][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.892841][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.892843][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892846][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.892847][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892849][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892851][  T327]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.892855][  T327]  ? __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)
[   21.892858][  T327]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.892861][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.892864][  T327]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.892865][  T327]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.892870][  T327]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.892875][  T327]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.892881][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.892883][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892887][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.892889][  T327]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.892891][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.892893][  T327]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.892896][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.892898][  T327]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.892901][  T327]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.892903][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892907][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.892909][  T327]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.892912][  T327]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.892914][  T327]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.892917][  T327]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.892923][  T327]  ? 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))
[   21.892924][  T327]  ? 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))
[   21.892928][  T327]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.892932][  T327]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.892935][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.892939][  T327]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.892943][  T327]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.892946][  T327]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.892952][  T327]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.892954][  T327]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.892957][  T327]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.892958][  T327]  ? move_addr_to_kernel (net/socket.c:258)
[   21.892968][  T327]  ___sys_sendmsg (net/socket.c:2767)
[   21.892971][  T327]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.892986][  T327]  __sys_sendmsg (net/socket.c:2799)
[   21.892989][  T327]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.892995][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.892999][  T327]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.893001][  T327]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.893004][  T327]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.893006][  T327] RIP: 0033:0x7f6614f8754e
[   21.893010][  T327] 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
[   21.893011][  T327] RSP: 002b:00007fff48ff81d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.893014][  T327] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6614f8754e
[   21.893015][  T327] RDX: 0000000000000000 RSI: 00007fff48ff8280 RDI: 0000000000000005
[   21.893016][  T327] RBP: 00007fff48ff81e0 R08: 0000000000000000 R09: 0000000000000000
[   21.893017][  T327] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910579
[   21.893018][  T327] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff48ff8940
| [   24.521699][  T375] softirqs last disabled at (14134): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.521707][  T375] Preemption disabled at:
| [   24.521707][  T375] 0x0
| [   24.521718][  T375] Tainted: [W]=WARN
[   24.521719][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.521720][  T375] Call Trace:
[   24.521722][  T375]  <TASK>
[   24.521724][  T375]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.521730][  T375]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.521734][  T375]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.521739][  T375]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.521744][  T375]  __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))
[   24.521746][  T375]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.521752][  T375]  ? 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)
[   24.521755][  T375]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.521758][  T375]  put_chars (drivers/char/virtio_console.c:1176)
[   24.521761][  T375]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.521764][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.521768][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.521770][  T375]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.521774][  T375]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.521777][  T375]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.521778][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.521780][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.521784][  T375]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.521785][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.521789][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.521793][  T375]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.521797][  T375]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.521799][  T375]  ? 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))
[   24.521802][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.521804][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.521808][  T375]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.521812][  T375]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.521814][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.521819][  T375]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.521822][  T375]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.521824][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.521826][  T375]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.521830][  T375]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.521831][  T375]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.521835][  T375]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.521839][  T375]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.521841][  T375]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.521843][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.521845][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.521849][  T375]  _printk (kernel/printk/printk.c:2504)
[   24.521853][  T375]  ? snapshot_read.cold (user.c:?)
[   24.521860][  T375] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.521871][  T375] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.521880][  T375] br_device_event (net/bridge/br.c:111) bridge
[   24.521888][  T375]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.521892][  T375]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.521897][  T375]  notifier_call_chain (kernel/notifier.c:85)
[   24.521903][  T375]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.521908][  T375]  ? netif_change_name (net/core/dev.c:1517)
[   24.521912][  T375]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.521915][  T375]  ? __kernel_text_address (kernel/extable.c:79)
[   24.521917][  T375]  ? write_profile (profile.c:?)
[   24.521919][  T375]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.521924][  T375]  netif_change_flags (net/core/dev.c:9882)
[   24.521928][  T375]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.521931][  T375]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.521933][  T375]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.521935][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.521936][  T375]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.521940][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.521942][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.521944][  T375]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.521947][  T375]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.521950][  T375]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.521951][  T375]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.521954][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.521956][  T375]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.521959][  T375]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.521966][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.521968][  T375]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.521970][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.521973][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.521974][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.521976][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.521978][  T375]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.521982][  T375]  ? __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)
[   24.521984][  T375]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.521986][  T375]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.521989][  T375]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.521991][  T375]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.521996][  T375]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.522001][  T375]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.522006][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.522008][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.522013][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.522015][  T375]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.522017][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.522019][  T375]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.522022][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.522024][  T375]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.522027][  T375]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.522029][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.522033][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.522035][  T375]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.522038][  T375]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.522040][  T375]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.522043][  T375]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.522049][  T375]  ? 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))
[   24.522050][  T375]  ? 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))
[   24.522055][  T375]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.522058][  T375]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.522061][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.522065][  T375]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.522069][  T375]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.522073][  T375]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.522078][  T375]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.522080][  T375]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.522083][  T375]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.522084][  T375]  ? move_addr_to_kernel (net/socket.c:258)
[   24.522092][  T375]  ___sys_sendmsg (net/socket.c:2767)
[   24.522094][  T375]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.522110][  T375]  __sys_sendmsg (net/socket.c:2799)
[   24.522113][  T375]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.522119][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.522123][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.522125][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.522128][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.522130][  T375] RIP: 0033:0x7f287afbd54e
[   24.522132][  T375] 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
[   24.522135][  T375] RSP: 002b:00007ffc7ac03e10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.522137][  T375] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f287afbd54e
[   24.522138][  T375] RDX: 0000000000000000 RSI: 00007ffc7ac03ec0 RDI: 0000000000000005
[   24.522139][  T375] RBP: 00007ffc7ac03e20 R08: 0000000000000000 R09: 0000000000000000
[   24.522140][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91057b


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
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print