======================================
| [   11.372067][  T193] softirqs last disabled at (34474): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   11.372070][  T193] Preemption disabled at:
| [   11.372070][  T193] 0x0
| [   11.372081][  T193] Tainted: [W]=WARN
[   11.372082][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.372084][  T193] Call Trace:
[   11.372086][  T193]  <TASK>
[   11.372087][  T193]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.372093][  T193]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.372098][  T193]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.372102][  T193]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.372107][  T193]  __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))
[   11.372110][  T193]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.372115][  T193]  ? 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)
[   11.372118][  T193]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.372121][  T193]  put_chars (drivers/char/virtio_console.c:1176)
[   11.372123][  T193]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.372125][  T193]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.372130][  T193]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.372135][  T193]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.372141][  T193]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.372143][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.372146][  T193]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.372150][  T193]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.372154][  T193]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.372156][  T193]  ? 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))
[   11.372159][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.372161][  T193]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.372165][  T193]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.372169][  T193]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.372171][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.372176][  T193]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.372179][  T193]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.372181][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.372183][  T193]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.372187][  T193]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.372189][  T193]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.372192][  T193]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.372196][  T193]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.372199][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.372203][  T193]  _printk (kernel/printk/printk.c:2504)
[   11.372207][  T193]  ? snapshot_read.cold (user.c:?)
[   11.372210][  T193]  ? 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)
[   11.372212][  T193]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.372216][  T193]  ? 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)
[   11.372219][  T193]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.372222][  T193]  ? exit_notify (kernel/exit.c:780)
[   11.372224][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.372227][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.372231][  T193]  do_group_exit (kernel/exit.c:1151)
[   11.372234][  T193]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.372236][  T193]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.372238][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.372241][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.372244][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.372246][  T193] RIP: 0033:0x7fb81c3d51b8
[   11.372248][  T193] Code: Unable to access opcode bytes at 0x7fb81c3d518e.

Code starting with the faulting instruction
===========================================
[   11.372249][  T193] RSP: 002b:00007ffddd4dfc98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.372252][  T193] RAX: ffffffffffffffda RBX: 00007fb81c505f88 RCX: 00007fb81c3d51b8
[   11.372253][  T193] RDX: 00007fb81c11ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.372254][  T193] RBP: 00007ffddd4dfcf0 R08: 0000000000000000 R09: 0000000000008010
[   11.372255][  T193] R10: 00007ffddd4dfab0 R11: 0000000000000246 R12: 0000000000000001
[   11.372256][  T193] R13: 0000000000000000 R14: 00007fb81c504680 R15: 00007fb81c505fa0
| [   12.430802][  T239] softirqs last disabled at (13714): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.430804][  T239] Preemption disabled at:
| [   12.430805][  T239] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.430815][  T239] Tainted: [W]=WARN
[   12.430816][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.430818][  T239] Call Trace:
[   12.430819][  T239]  <TASK>
[   12.430821][  T239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.430827][  T239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.430829][  T239]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.430834][  T239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.430838][  T239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.430843][  T239]  __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))
[   12.430846][  T239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.430851][  T239]  ? 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)
[   12.430854][  T239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.430857][  T239]  put_chars (drivers/char/virtio_console.c:1176)
[   12.430859][  T239]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   12.430862][  T239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.430865][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.430869][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.430871][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.430875][  T239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.430878][  T239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.430880][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.430881][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.430885][  T239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.430887][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.430890][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.430893][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.430897][  T239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.430901][  T239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.430903][  T239]  ? 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))
[   12.430906][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.430908][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.430912][  T239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.430916][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.430918][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.430924][  T239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.430926][  T239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.430928][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.430931][  T239]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.430934][  T239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.430936][  T239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.430939][  T239]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.430944][  T239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.430946][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.430949][  T239]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.430953][  T239]  _printk (kernel/printk/printk.c:2504)
[   12.430957][  T239]  ? snapshot_read.cold (user.c:?)
[   12.430960][  T239]  ? br_multicast_flood (??:?) bridge
[   12.430974][  T239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.430975][  T239]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.430976][  T239]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.430981][  T239] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.430991][  T239] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.431000][  T239] new_nbp (net/bridge/br_if.c:449) bridge
[   12.431009][  T239] br_add_if (net/bridge/br_if.c:592) bridge
[   12.431016][  T239]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.431020][  T239]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.431023][  T239]  ? __kernel_text_address (kernel/extable.c:79)
[   12.431027][  T239]  do_set_master (net/core/rtnetlink.c:3071)
[   12.431032][  T239]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.431035][  T239]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.431038][  T239]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.431039][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.431041][  T239]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.431045][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.431047][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.431049][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.431052][  T239]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.431055][  T239]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.431056][  T239]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.431059][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431061][  T239]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.431064][  T239]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.431069][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.431071][  T239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.431073][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431076][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.431077][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431079][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431081][  T239]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.431085][  T239]  ? __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)
[   12.431089][  T239]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.431091][  T239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.431094][  T239]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.431096][  T239]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.431101][  T239]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.431106][  T239]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.431111][  T239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.431113][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431118][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.431119][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.431122][  T239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.431123][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.431127][  T239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.431129][  T239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.431132][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.431134][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431138][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.431140][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.431143][  T239]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.431145][  T239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.431148][  T239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.431154][  T239]  ? 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))
[   12.431156][  T239]  ? 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))
[   12.431160][  T239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.431164][  T239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.431166][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431170][  T239]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.431174][  T239]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.431178][  T239]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.431183][  T239]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.431186][  T239]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.431188][  T239]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.431190][  T239]  ? move_addr_to_kernel (net/socket.c:258)
[   12.431197][  T239]  ___sys_sendmsg (net/socket.c:2767)
[   12.431200][  T239]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.431216][  T239]  __sys_sendmsg (net/socket.c:2799)
[   12.431219][  T239]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.431225][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431229][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.431231][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.431234][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.431236][  T239] RIP: 0033:0x7fdbda2eb54e
[   12.431240][  T239] 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
[   12.431242][  T239] RSP: 002b:00007ffd1ddf9180 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.431244][  T239] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdbda2eb54e
[   12.431246][  T239] RDX: 0000000000000000 RSI: 00007ffd1ddf9230 RDI: 0000000000000005
[   12.431247][  T239] RBP: 00007ffd1ddf9190 R08: 0000000000000000 R09: 0000000000000000
[   12.431248][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b8a4
[   12.431249][  T239] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd1ddf98f0
| [   18.063318][  T274] softirqs last disabled at (24175): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   18.063322][  T274] Preemption disabled at:
| [   18.063323][  T274] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.063332][  T274] Tainted: [W]=WARN
[   18.063333][  T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.063334][  T274] Call Trace:
[   18.063336][  T274]  <TASK>
[   18.063337][  T274]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.063342][  T274]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.063345][  T274]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.063349][  T274]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.063353][  T274]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.063358][  T274]  __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))
[   18.063360][  T274]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.063366][  T274]  ? 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)
[   18.063368][  T274]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.063371][  T274]  put_chars (drivers/char/virtio_console.c:1176)
[   18.063373][  T274]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   18.063375][  T274]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.063378][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.063382][  T274]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.063386][  T274]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.063388][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.063390][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.063394][  T274]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.063396][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   18.063399][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.063401][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.063405][  T274]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.063409][  T274]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.063411][  T274]  ? 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))
[   18.063414][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.063416][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.063420][  T274]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.063424][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.063426][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.063431][  T274]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.063433][  T274]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.063435][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.063437][  T274]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.063441][  T274]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.063443][  T274]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.063446][  T274]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.063450][  T274]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.063455][  T274]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   18.063458][  T274]  _printk (kernel/printk/printk.c:2504)
[   18.063462][  T274]  ? snapshot_read.cold (user.c:?)
[   18.063468][  T274]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   18.063471][  T274] gact_init_module (net/sched/act_gact.c:180) act_gact
[   18.063473][  T274]  do_one_initcall (init/main.c:1357)
[   18.063476][  T274]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   18.063480][  T274]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   18.063483][  T274]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   18.063488][  T274]  do_init_module (kernel/module/main.c:3117)
[   18.063491][  T274]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.063496][  T274]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   18.063499][  T274]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   18.063503][  T274]  load_module (kernel/module/main.c:3593)
[   18.063510][  T274]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   18.063513][  T274]  ? __ia32_sys_fsconfig (??:?)
[   18.063517][  T274]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.063519][  T274]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.063523][  T274]  init_module_from_file (kernel/module/main.c:3790)
[   18.063526][  T274]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   18.063534][  T274]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.063538][  T274]  ? 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)
[   18.063541][  T274]  idempotent_init_module (kernel/module/main.c:3802)
[   18.063544][  T274]  ? init_module_from_file (kernel/module/main.c:3791)
[   18.063550][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.063552][  T274]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   18.063558][  T274]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   18.063561][  T274]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.063564][  T274]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.063566][  T274]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.063569][  T274]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.063571][  T274] RIP: 0033:0x7f0fcd6f937d
[   18.063574][  T274] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.063576][  T274] RSP: 002b:00007ffff5e95e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   18.063579][  T274] RAX: ffffffffffffffda RBX: 000055607992b810 RCX: 00007f0fcd6f937d
[   18.063580][  T274] RDX: 0000000000000000 RSI: 000055605d9beffd RDI: 0000000000000000
[   18.063581][  T274] RBP: 00007ffff5e95ee0 R08: 0000000000000000 R09: 0000000000000000
[   18.063582][  T274] R10: 0000000000000000 R11: 0000000000000246 R12: 000055605d9beffd
[   18.063582][  T274] R13: 000055607992b960 R14: 0000000000040000 R15: 0000000000000000
| [   23.431945][  T606] softirqs last disabled at (13406): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   23.431952][  T606] Preemption disabled at:
| [   23.431953][  T606] 0x0
| [   23.431963][  T606] Tainted: [W]=WARN
[   23.431964][  T606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.431966][  T606] Call Trace:
[   23.431967][  T606]  <TASK>
[   23.431969][  T606]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.431975][  T606]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.431980][  T606]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.431984][  T606]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.431989][  T606]  __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))
[   23.431991][  T606]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.431997][  T606]  ? 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)
[   23.432000][  T606]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.432003][  T606]  put_chars (drivers/char/virtio_console.c:1176)
[   23.432005][  T606]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   23.432007][  T606]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.432010][  T606]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.432014][  T606]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.432018][  T606]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.432021][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432023][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432028][  T606]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.432029][  T606]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   23.432032][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432035][  T606]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.432039][  T606]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.432043][  T606]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.432045][  T606]  ? 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))
[   23.432049][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432051][  T606]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.432055][  T606]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.432059][  T606]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.432061][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432067][  T606]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.432069][  T606]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.432071][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432074][  T606]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.432077][  T606]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.432079][  T606]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.432083][  T606]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.432087][  T606]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.432090][  T606]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.432092][  T606]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.432096][  T606]  _printk (kernel/printk/printk.c:2504)
[   23.432100][  T606]  ? snapshot_read.cold (user.c:?)
[   23.432108][  T606] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   23.432118][  T606] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   23.432127][  T606] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   23.432135][  T606] br_dev_stop (net/bridge/br_device.c:193) bridge
[   23.432144][  T606]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.432146][  T606]  __dev_close_many (net/core/dev.c:1798)
[   23.432150][  T606]  ? netif_open (net/core/dev.c:1755)
[   23.432152][  T606]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.432155][  T606]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.432159][  T606]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   23.432162][  T606]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   23.432165][  T606]  ? __kernel_text_address (kernel/extable.c:79)
[   23.432167][  T606]  ? write_profile (profile.c:?)
[   23.432170][  T606]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.432175][  T606]  netif_change_flags (net/core/dev.c:9877)
[   23.432179][  T606]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   23.432182][  T606]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.432184][  T606]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.432185][  T606]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.432187][  T606]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.432191][  T606]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.432193][  T606]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.432195][  T606]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.432198][  T606]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.432201][  T606]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.432202][  T606]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.432205][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432207][  T606]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   23.432210][  T606]  ? ___sys_sendmsg (net/socket.c:2757)
[   23.432215][  T606]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.432217][  T606]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.432219][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432222][  T606]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.432223][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432225][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432227][  T606]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.432231][  T606]  ? __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)
[   23.432235][  T606]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.432237][  T606]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.432240][  T606]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.432245][  T606]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.432251][  T606]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.432256][  T606]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.432258][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432263][  T606]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.432264][  T606]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.432267][  T606]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.432268][  T606]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.432272][  T606]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.432274][  T606]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.432277][  T606]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.432279][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432283][  T606]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.432285][  T606]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.432289][  T606]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.432290][  T606]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.432293][  T606]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.432300][  T606]  ? 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))
[   23.432301][  T606]  ? 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))
[   23.432305][  T606]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.432309][  T606]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.432312][  T606]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.432316][  T606]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.432322][  T606]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.432326][  T606]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   23.432332][  T606]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   23.432334][  T606]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.432336][  T606]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   23.432338][  T606]  ? move_addr_to_kernel (net/socket.c:258)
[   23.432346][  T606]  ___sys_sendmsg (net/socket.c:2767)
[   23.432349][  T606]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.432365][  T606]  __sys_sendmsg (net/socket.c:2799)
[   23.432368][  T606]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.432375][  T606]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.432378][  T606]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.432381][  T606]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.432384][  T606]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.432386][  T606] RIP: 0033:0x7f01016ea54e
[   23.432388][  T606] 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
[   23.432390][  T606] RSP: 002b:00007fffb32a3cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.432393][  T606] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f01016ea54e
[   23.432394][  T606] RDX: 0000000000000000 RSI: 00007fffb32a3da0 RDI: 0000000000000005
[   23.432395][  T606] RBP: 00007fffb32a3d00 R08: 0000000000000000 R09: 0000000000000000
[   23.432396][  T606] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b8af


Finger prints:
br_stp_disable_bridge:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print