======================================
| [   10.772210][  T187] softirqs last disabled at (45433): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.772213][  T187] Preemption disabled at:
| [   10.772214][  T187] 0x0
| [   10.772228][  T187] Tainted: [W]=WARN
[   10.772229][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.772231][  T187] Call Trace:
[   10.772233][  T187]  <TASK>
[   10.772236][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.772244][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.772251][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.772256][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.772264][  T187]  __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))
[   10.772268][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.772277][  T187]  ? 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)
[   10.772280][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.772285][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[   10.772290][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.772292][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.772299][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.772308][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.772319][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.772322][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.772326][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.772333][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.772340][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.772342][  T187]  ? 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))
[   10.772347][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.772351][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.772358][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.772365][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.772368][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.772377][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.772382][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.772384][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.772388][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.772395][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.772397][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.772403][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.772409][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.772415][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.772422][  T187]  _printk (kernel/printk/printk.c:2504)
[   10.772427][  T187]  ? snapshot_read.cold (user.c:?)
[   10.772432][  T187]  ? 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)
[   10.772436][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.772443][  T187]  ? 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)
[   10.772447][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.772452][  T187]  ? exit_notify (kernel/exit.c:780)
[   10.772456][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.772460][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.772467][  T187]  do_group_exit (kernel/exit.c:1151)
[   10.772472][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.772475][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.772478][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.772482][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.772488][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.772492][  T187] RIP: 0033:0x7f28bb77c1b8
[   10.772495][  T187] Code: Unable to access opcode bytes at 0x7f28bb77c18e.

Code starting with the faulting instruction
===========================================
[   10.772496][  T187] RSP: 002b:00007ffc3c8dfed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.772499][  T187] RAX: ffffffffffffffda RBX: 00007f28bb8acf88 RCX: 00007f28bb77c1b8
[   10.772501][  T187] RDX: 00007f28bb4c6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.772503][  T187] RBP: 00007ffc3c8dff30 R08: 0000000000000000 R09: 0000000000008010
[   10.772505][  T187] R10: 00007ffc3c8dfcf0 R11: 0000000000000246 R12: 0000000000000001
[   10.772506][  T187] R13: 0000000000000000 R14: 00007f28bb8ab680 R15: 00007f28bb8acfa0
| [   12.509716][  T256] softirqs last disabled at (12608): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.509719][  T256] Preemption disabled at:
| [   12.509719][  T256] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.509729][  T256] Tainted: [W]=WARN
[   12.509730][  T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.509731][  T256] Call Trace:
[   12.509733][  T256]  <TASK>
[   12.509735][  T256]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.509741][  T256]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.509743][  T256]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.509748][  T256]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.509753][  T256]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.509758][  T256]  __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))
[   12.509760][  T256]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.509766][  T256]  ? 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)
[   12.509769][  T256]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.509773][  T256]  put_chars (drivers/char/virtio_console.c:1176)
[   12.509776][  T256]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.509780][  T256]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.509784][  T256]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.509787][  T256]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.509789][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509791][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509795][  T256]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.509797][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.509800][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.509805][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.509809][  T256]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.509812][  T256]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.509814][  T256]  ? 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))
[   12.509818][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.509820][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.509824][  T256]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.509829][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.509831][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509836][  T256]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.509839][  T256]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.509841][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.509843][  T256]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.509847][  T256]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.509849][  T256]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.509852][  T256]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.509856][  T256]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.509859][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.509860][  T256]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.509865][  T256]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.509869][  T256]  _printk (kernel/printk/printk.c:2504)
[   12.509873][  T256]  ? snapshot_read.cold (user.c:?)
[   12.509877][  T256]  ? br_multicast_flood (??:?) bridge
[   12.509890][  T256]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.509892][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.509893][  T256]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.509898][  T256] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.509908][  T256] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.509917][  T256] new_nbp (net/bridge/br_if.c:449) bridge
[   12.509927][  T256] br_add_if (net/bridge/br_if.c:592) bridge
[   12.509934][  T256]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.509938][  T256]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.509946][  T256]  ? __kernel_text_address (kernel/extable.c:79)
[   12.509950][  T256]  do_set_master (net/core/rtnetlink.c:3071)
[   12.509955][  T256]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.509958][  T256]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.509962][  T256]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.509963][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.509966][  T256]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.509969][  T256]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.509972][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.509974][  T256]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.509977][  T256]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.509980][  T256]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.509982][  T256]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.509984][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509986][  T256]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.509989][  T256]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.509994][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.509996][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.509999][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510001][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510003][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510004][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510007][  T256]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.510011][  T256]  ? __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)
[   12.510013][  T256]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.510015][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.510018][  T256]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.510020][  T256]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.510025][  T256]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.510031][  T256]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.510036][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510038][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510043][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.510045][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.510047][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510049][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.510052][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510055][  T256]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.510058][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.510059][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510064][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.510066][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.510069][  T256]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.510071][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.510074][  T256]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.510080][  T256]  ? 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))
[   12.510082][  T256]  ? 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))
[   12.510086][  T256]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.510090][  T256]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.510093][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510097][  T256]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.510101][  T256]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.510105][  T256]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.510110][  T256]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.510113][  T256]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.510115][  T256]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.510117][  T256]  ? move_addr_to_kernel (net/socket.c:258)
[   12.510124][  T256]  ___sys_sendmsg (net/socket.c:2767)
[   12.510127][  T256]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.510143][  T256]  __sys_sendmsg (net/socket.c:2799)
[   12.510146][  T256]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.510153][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510156][  T256]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.510159][  T256]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.510162][  T256]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.510164][  T256] RIP: 0033:0x7f791e0bd54e
[   12.510168][  T256] 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
[   12.510170][  T256] RSP: 002b:00007ffed93e8d80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.510173][  T256] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f791e0bd54e
[   12.510174][  T256] RDX: 0000000000000000 RSI: 00007ffed93e8e30 RDI: 0000000000000005
[   12.510175][  T256] RBP: 00007ffed93e8d90 R08: 0000000000000000 R09: 0000000000000000
[   12.510176][  T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910f82
[   12.510177][  T256] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffed93e94f0
| [   20.673707][  T323] softirqs last disabled at (18988): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   20.673709][  T323] Preemption disabled at:
| [   20.673710][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.673719][  T323] Tainted: [W]=WARN
[   20.673720][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.673722][  T323] Call Trace:
[   20.673723][  T323]  <TASK>
[   20.673725][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.673731][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.673733][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.673738][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.673742][  T323]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.673747][  T323]  __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))
[   20.673750][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.673755][  T323]  ? 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)
[   20.673758][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.673761][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   20.673764][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.673765][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.673770][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.673775][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.673782][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.673784][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673787][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.673791][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.673795][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.673797][  T323]  ? 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))
[   20.673800][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673803][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.673807][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.673811][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.673813][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.673818][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.673821][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.673823][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673826][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.673830][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.673831][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.673835][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.673839][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.673841][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.673842][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.673845][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.673847][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   20.673849][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   20.673851][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   20.673853][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.673858][  T323]  _printk (kernel/printk/printk.c:2504)
[   20.673862][  T323]  ? snapshot_read.cold (user.c:?)
[   20.673866][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.673870][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.673874][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.673876][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   20.673880][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673883][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   20.673885][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   20.673887][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.673889][  T323]  ? 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)
[   20.673893][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   20.673897][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   20.673901][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   20.673914][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   20.673921][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   20.673928][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.673931][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   20.673936][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   20.673940][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.673943][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.673945][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.673947][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.673951][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.673954][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.673955][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.673958][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.673961][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.673963][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.673966][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.673968][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   20.673976][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   20.673980][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.673982][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.673985][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673987][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.673989][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673991][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.673993][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.673996][  T323]  ? __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)
[   20.673999][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.674001][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.674004][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.674006][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.674011][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.674017][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.674022][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.674024][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.674029][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.674031][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.674033][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.674035][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.674039][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.674041][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.674044][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.674045][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.674050][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.674052][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.674055][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.674057][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.674060][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.674067][  T323]  ? 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))
[   20.674068][  T323]  ? 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))
[   20.674073][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.674076][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.674079][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.674084][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.674087][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.674092][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   20.674097][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   20.674100][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.674102][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   20.674104][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   20.674111][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   20.674114][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.674131][  T323]  __sys_sendmsg (net/socket.c:2799)
[   20.674133][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.674140][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.674144][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.674145][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.674149][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.674151][  T323] RIP: 0033:0x7f1c56bf654e
[   20.674154][  T323] 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
[   20.674156][  T323] RSP: 002b:00007ffc55b7f7e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.674159][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1c56bf654e
[   20.674161][  T323] RDX: 0000000000000000 RSI: 00007ffc55b7f890 RDI: 0000000000000005
[   20.674162][  T323] RBP: 00007ffc55b7f7f0 R08: 0000000000000000 R09: 0000000000000000
[   20.674162][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910f8a
[   20.674163][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc55b7ff50
| [   22.815032][  T326] softirqs last disabled at (13168): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.815035][  T326] Preemption disabled at:
| [   22.815035][  T326] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.815045][  T326] Tainted: [W]=WARN
[   22.815046][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.815048][  T326] Call Trace:
[   22.815050][  T326]  <TASK>
[   22.815052][  T326]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.815058][  T326]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.815061][  T326]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.815066][  T326]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.815070][  T326]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.815076][  T326]  __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))
[   22.815078][  T326]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.815084][  T326]  ? 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)
[   22.815087][  T326]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.815090][  T326]  put_chars (drivers/char/virtio_console.c:1176)
[   22.815092][  T326]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   22.815094][  T326]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.815097][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.815102][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.815105][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.815108][  T326]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.815111][  T326]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.815113][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815115][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815119][  T326]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.815121][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.815125][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815127][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.815131][  T326]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.815135][  T326]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.815137][  T326]  ? 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))
[   22.815140][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815143][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.815147][  T326]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.815151][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.815153][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815159][  T326]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.815162][  T326]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.815163][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815166][  T326]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.815170][  T326]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.815171][  T326]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.815175][  T326]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.815179][  T326]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.815182][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.815184][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.815188][  T326]  _printk (kernel/printk/printk.c:2504)
[   22.815192][  T326]  ? snapshot_read.cold (user.c:?)
[   22.815198][  T326]  ? br_multicast_flood (??:?) bridge
[   22.815212][  T326]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.815214][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.815215][  T326]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.815219][  T326] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.815230][  T326] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   22.815239][  T326] new_nbp (net/bridge/br_if.c:449) bridge
[   22.815249][  T326] br_add_if (net/bridge/br_if.c:592) bridge
[   22.815256][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.815260][  T326]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.815263][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   22.815267][  T326]  do_set_master (net/core/rtnetlink.c:3071)
[   22.815272][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.815276][  T326]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.815279][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.815280][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.815282][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.815286][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.815289][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.815291][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.815293][  T326]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.815296][  T326]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.815298][  T326]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.815301][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815303][  T326]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.815306][  T326]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.815311][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.815313][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.815315][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815318][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.815320][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815321][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815324][  T326]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.815328][  T326]  ? __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)
[   22.815331][  T326]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.815333][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.815337][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.815338][  T326]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.815343][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.815349][  T326]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.815354][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.815356][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815361][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.815363][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.815365][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.815367][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.815371][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.815373][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.815376][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.815377][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815382][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.815384][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.815387][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.815389][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.815392][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.815398][  T326]  ? 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))
[   22.815400][  T326]  ? 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))
[   22.815404][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.815408][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.815411][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.815415][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.815419][  T326]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.815423][  T326]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.815429][  T326]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.815431][  T326]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.815433][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.815435][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   22.815443][  T326]  ___sys_sendmsg (net/socket.c:2767)
[   22.815445][  T326]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.815462][  T326]  __sys_sendmsg (net/socket.c:2799)
[   22.815465][  T326]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.815471][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.815475][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.815477][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.815480][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.815483][  T326] RIP: 0033:0x7f4e54e8054e
[   22.815486][  T326] 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
[   22.815489][  T326] RSP: 002b:00007ffe30122f00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.815492][  T326] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4e54e8054e
[   22.815493][  T326] RDX: 0000000000000000 RSI: 00007ffe30122fb0 RDI: 0000000000000005
[   22.815494][  T326] RBP: 00007ffe30122f10 R08: 0000000000000000 R09: 0000000000000000
[   22.815495][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910f8d
[   22.815496][  T326] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe30123670
| [   25.452030][  T374] softirqs last disabled at (13838): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   25.452038][  T374] Preemption disabled at:
| [   25.452039][  T374] 0x0
| [   25.452049][  T374] Tainted: [W]=WARN
[   25.452050][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.452051][  T374] Call Trace:
[   25.452053][  T374]  <TASK>
[   25.452055][  T374]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.452061][  T374]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.452066][  T374]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.452070][  T374]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.452076][  T374]  __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))
[   25.452078][  T374]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.452084][  T374]  ? 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)
[   25.452087][  T374]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.452090][  T374]  put_chars (drivers/char/virtio_console.c:1176)
[   25.452093][  T374]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.452096][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.452100][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.452102][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.452106][  T374]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.452109][  T374]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.452111][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452113][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452117][  T374]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.452118][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.452123][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.452127][  T374]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.452130][  T374]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.452132][  T374]  ? 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))
[   25.452135][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452138][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.452142][  T374]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.452146][  T374]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.452148][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452153][  T374]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.452156][  T374]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.452158][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452160][  T374]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.452164][  T374]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.452166][  T374]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.452169][  T374]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.452174][  T374]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.452176][  T374]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.452178][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.452181][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.452184][  T374]  _printk (kernel/printk/printk.c:2504)
[   25.452188][  T374]  ? snapshot_read.cold (user.c:?)
[   25.452199][  T374] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   25.452211][  T374] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   25.452220][  T374] br_device_event (net/bridge/br.c:111) bridge
[   25.452228][  T374]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   25.452232][  T374]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   25.452238][  T374]  notifier_call_chain (kernel/notifier.c:85)
[   25.452244][  T374]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   25.452249][  T374]  ? netif_change_name (net/core/dev.c:1517)
[   25.452253][  T374]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   25.452256][  T374]  ? __kernel_text_address (kernel/extable.c:79)
[   25.452258][  T374]  ? write_profile (profile.c:?)
[   25.452261][  T374]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   25.452265][  T374]  netif_change_flags (net/core/dev.c:9882)
[   25.452269][  T374]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   25.452273][  T374]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.452275][  T374]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.452277][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.452278][  T374]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.452282][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.452285][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.452286][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.452289][  T374]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.452292][  T374]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.452294][  T374]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.452297][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452299][  T374]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   25.452302][  T374]  ? ___sys_sendmsg (net/socket.c:2757)
[   25.452306][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.452308][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.452311][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452314][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.452315][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452317][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452319][  T374]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.452323][  T374]  ? __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)
[   25.452325][  T374]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.452327][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.452330][  T374]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.452332][  T374]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.452337][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.452343][  T374]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.452348][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.452350][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452355][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.452357][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.452359][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.452361][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.452365][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.452367][  T374]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.452370][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.452371][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452376][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.452378][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.452381][  T374]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.452383][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.452386][  T374]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.452392][  T374]  ? 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))
[   25.452394][  T374]  ? 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))
[   25.452398][  T374]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.452402][  T374]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.452405][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.452409][  T374]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.452413][  T374]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.452417][  T374]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   25.452422][  T374]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   25.452425][  T374]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.452427][  T374]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   25.452429][  T374]  ? move_addr_to_kernel (net/socket.c:258)
[   25.452436][  T374]  ___sys_sendmsg (net/socket.c:2767)
[   25.452439][  T374]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.452455][  T374]  __sys_sendmsg (net/socket.c:2799)
[   25.452458][  T374]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.452464][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.452468][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.452470][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.452473][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.452476][  T374] RIP: 0033:0x7fea8817f54e
[   25.452478][  T374] 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
[   25.452480][  T374] RSP: 002b:00007ffd87e949d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.452483][  T374] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fea8817f54e
[   25.452484][  T374] RDX: 0000000000000000 RSI: 00007ffd87e94a80 RDI: 0000000000000005
[   25.452485][  T374] RBP: 00007ffd87e949e0 R08: 0000000000000000 R09: 0000000000000000
[   25.452486][  T374] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910f8f


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