======================================
| [   10.970917][  T215] softirqs last disabled at (29162): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.970919][  T215] Preemption disabled at:
| [   10.970920][  T215] 0x0
| [   10.970930][  T215] Tainted: [W]=WARN
[   10.970932][  T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.970933][  T215] Call Trace:
[   10.970935][  T215]  <TASK>
[   10.970936][  T215]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.970943][  T215]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.970947][  T215]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.970951][  T215]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.970955][  T215]  __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))
[   10.970957][  T215]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.970963][  T215]  ? 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)
[   10.970966][  T215]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.970970][  T215]  put_chars (drivers/char/virtio_console.c:1176)
[   10.970973][  T215]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.970974][  T215]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.970977][  T215]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.970982][  T215]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.970992][  T215]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.970994][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.970996][  T215]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.971002][  T215]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.971006][  T215]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.971008][  T215]  ? 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))
[   10.971011][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.971013][  T215]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.971017][  T215]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.971021][  T215]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.971023][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.971028][  T215]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.971030][  T215]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.971032][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.971034][  T215]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.971038][  T215]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.971039][  T215]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.971042][  T215]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.971045][  T215]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.971048][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.971051][  T215]  _printk (kernel/printk/printk.c:2504)
[   10.971055][  T215]  ? snapshot_read.cold (user.c:?)
[   10.971057][  T215]  ? 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)
[   10.971060][  T215]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.971064][  T215]  ? 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)
[   10.971066][  T215]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.971070][  T215]  ? exit_notify (kernel/exit.c:780)
[   10.971071][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.971074][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.971078][  T215]  do_group_exit (kernel/exit.c:1151)
[   10.971080][  T215]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.971082][  T215]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.971085][  T215]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.971089][  T215]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.971092][  T215]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.971094][  T215] RIP: 0033:0x7f013c1f41b8
[   10.971096][  T215] Code: Unable to access opcode bytes at 0x7f013c1f418e.

Code starting with the faulting instruction
===========================================
[   10.971097][  T215] RSP: 002b:00007ffeb62e0438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.971100][  T215] RAX: ffffffffffffffda RBX: 00007f013c324f88 RCX: 00007f013c1f41b8
[   10.971101][  T215] RDX: 00007f013bf3efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.971102][  T215] RBP: 00007ffeb62e0490 R08: 0000000000000000 R09: 0000000000000050
[   10.971103][  T215] R10: 00007ffeb62e0250 R11: 0000000000000246 R12: 0000000000000001
[   10.971103][  T215] R13: 0000000000000000 R14: 00007f013c323680 R15: 00007f013c324fa0
| [   12.125913][  T246] softirqs last disabled at (23026): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.125916][  T246] Preemption disabled at:
| [   12.125916][  T246] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.125925][  T246] Tainted: [W]=WARN
[   12.125926][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.125928][  T246] Call Trace:
[   12.125929][  T246]  <TASK>
[   12.125931][  T246]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.125937][  T246]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.125938][  T246]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.125943][  T246]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.125947][  T246]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.125951][  T246]  __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))
[   12.125953][  T246]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.125959][  T246]  ? 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)
[   12.125962][  T246]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.125966][  T246]  put_chars (drivers/char/virtio_console.c:1176)
[   12.125968][  T246]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.125974][  T246]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.125982][  T246]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.125985][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.125992][  T246]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.125996][  T246]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.125998][  T246]  ? 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))
[   12.126001][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126004][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.126008][  T246]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.126012][  T246]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.126014][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.126019][  T246]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.126022][  T246]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.126024][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126025][  T246]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.126029][  T246]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.126031][  T246]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.126033][  T246]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.126036][  T246]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.126038][  T246]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.126043][  T246]  _printk (kernel/printk/printk.c:2504)
[   12.126046][  T246]  ? snapshot_read.cold (user.c:?)
[   12.126049][  T246]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.126052][  T246]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.126055][  T246]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.126058][  T246]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.126060][  T246]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.126063][  T246]  ? netdev_notice (net/core/dev.c:13194)
[   12.126065][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.126068][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.126071][  T246]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.126074][  T246]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.126076][  T246]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.126078][  T246]  ? register_netdev (net/core/dev.c:11618)
[   12.126079][  T246]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   12.126084][  T246]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.126087][  T246]  ? __kernel_text_address (kernel/extable.c:79)
[   12.126089][  T246]  ? write_profile (profile.c:?)
[   12.126093][  T246]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.126099][  T246]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.126102][  T246]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.126104][  T246]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.126106][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.126109][  T246]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.126112][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.126114][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.126116][  T246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.126118][  T246]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.126120][  T246]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.126121][  T246]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.126123][  T246]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.126125][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.126127][  T246]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.126130][  T246]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.126134][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.126135][  T246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.126138][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126140][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.126141][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126142][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126144][  T246]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.126146][  T246]  ? __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)
[   12.126149][  T246]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.126151][  T246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.126154][  T246]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.126155][  T246]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.126160][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126162][  T246]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.126167][  T246]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.126172][  T246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.126174][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.126179][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.126181][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.126183][  T246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.126184][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.126188][  T246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.126190][  T246]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.126193][  T246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.126194][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.126199][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.126201][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.126204][  T246]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.126207][  T246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.126210][  T246]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.126216][  T246]  ? 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))
[   12.126218][  T246]  ? 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))
[   12.126222][  T246]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.126226][  T246]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.126229][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.126233][  T246]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.126237][  T246]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.126240][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.126242][  T246]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.126247][  T246]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.126250][  T246]  ____sys_sendmsg (net/socket.c:2713)
[   12.126252][  T246]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.126255][  T246]  ? sock_write_iter (net/socket.c:1269)
[   12.126256][  T246]  ? move_addr_to_kernel (net/socket.c:258)
[   12.126263][  T246]  ___sys_sendmsg (net/socket.c:2767)
[   12.126266][  T246]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.126281][  T246]  __sys_sendmsg (net/socket.c:2799)
[   12.126284][  T246]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.126290][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.126293][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.126296][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.126299][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.126301][  T246] RIP: 0033:0x7f806ebb854e
[   12.126305][  T246] 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
[   12.126307][  T246] RSP: 002b:00007ffe7a8e9110 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.126309][  T246] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f806ebb854e
[   12.126311][  T246] RDX: 0000000000000000 RSI: 00007ffe7a8e91c0 RDI: 0000000000000005
[   12.126311][  T246] RBP: 00007ffe7a8e9120 R08: 0000000000000000 R09: 0000000000000000
[   12.126312][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913149
[   12.126313][  T246] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe7a8e9890
| [   14.431720][  T293] softirqs last disabled at (37002): addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3946)
| [   14.431729][  T293] Preemption disabled at:
| [   14.431730][  T293] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.431739][  T293] Tainted: [W]=WARN
[   14.431740][  T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.431742][  T293] Call Trace:
[   14.431743][  T293]  <TASK>
[   14.431745][  T293]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.431751][  T293]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.431752][  T293]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.431757][  T293]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.431761][  T293]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.431766][  T293]  __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))
[   14.431767][  T293]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.431774][  T293]  ? 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)
[   14.431777][  T293]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.431781][  T293]  put_chars (drivers/char/virtio_console.c:1176)
[   14.431783][  T293]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.431784][  T293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.431788][  T293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.431793][  T293]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.431801][  T293]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.431803][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431805][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.431809][  T293]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.431813][  T293]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.431815][  T293]  ? 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))
[   14.431819][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431820][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.431824][  T293]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.431828][  T293]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.431830][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.431835][  T293]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.431838][  T293]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.431840][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431842][  T293]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   14.431846][  T293]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.431847][  T293]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.431850][  T293]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.431853][  T293]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.431855][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.431857][  T293]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   14.431861][  T293]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.431864][  T293]  _printk (kernel/printk/printk.c:2504)
[   14.431868][  T293]  ? snapshot_read.cold (user.c:?)
[   14.431871][  T293]  ? br_multicast_flood (??:?)
[   14.431875][  T293]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.431876][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.431877][  T293]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.431881][  T293]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   14.431886][  T293]  br_init_port (net/bridge/br_stp_if.c:39)
[   14.431888][  T293]  new_nbp (net/bridge/br_if.c:449)
[   14.431892][  T293]  br_add_if (net/bridge/br_if.c:592)
[   14.431894][  T293]  ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2))
[   14.431896][  T293]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   14.431899][  T293]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.431903][  T293]  ? cycle_netdev (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4084 drivers/net/vrf.c:998)
[   14.431907][  T293]  ? vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   14.431909][  T293]  do_set_master (net/core/rtnetlink.c:3071)
[   14.431913][  T293]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.431916][  T293]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.431919][  T293]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.431921][  T293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.431923][  T293]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.431927][  T293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.431929][  T293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.431931][  T293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.431933][  T293]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.431935][  T293]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.431937][  T293]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.431938][  T293]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.431940][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.431942][  T293]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.431945][  T293]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.431949][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.431951][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.431953][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431955][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.431957][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431958][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431959][  T293]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.431962][  T293]  ? __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)
[   14.431963][  T293]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.431965][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.431968][  T293]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.431969][  T293]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.431974][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.431976][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.431981][  T293]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.431986][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.431988][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.431995][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.431998][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.432000][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.432002][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.432007][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.432009][  T293]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.432012][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.432014][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.432019][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.432021][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.432025][  T293]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.432028][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.432031][  T293]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.432037][  T293]  ? 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))
[   14.432039][  T293]  ? 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))
[   14.432044][  T293]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.432048][  T293]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.432051][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.432055][  T293]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.432059][  T293]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.432063][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.432064][  T293]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.432070][  T293]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.432073][  T293]  ____sys_sendmsg (net/socket.c:2713)
[   14.432075][  T293]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.432077][  T293]  ? sock_write_iter (net/socket.c:1269)
[   14.432079][  T293]  ? move_addr_to_kernel (net/socket.c:258)
[   14.432086][  T293]  ___sys_sendmsg (net/socket.c:2767)
[   14.432089][  T293]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.432104][  T293]  __sys_sendmsg (net/socket.c:2799)
[   14.432107][  T293]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.432113][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.432116][  T293]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.432119][  T293]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.432122][  T293]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.432125][  T293] RIP: 0033:0x7f1f7a25754e
[   14.432128][  T293] 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
[   14.432130][  T293] RSP: 002b:00007fffb0c20ec0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.432133][  T293] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1f7a25754e
[   14.432134][  T293] RDX: 0000000000000000 RSI: 00007fffb0c20f70 RDI: 0000000000000005
[   14.432135][  T293] RBP: 00007fffb0c20ed0 R08: 0000000000000000 R09: 0000000000000000
[   14.432136][  T293] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91314b
[   14.432137][  T293] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb0c21630
| [   21.274064][  T340] softirqs last disabled at (40660): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73)
| [   21.274067][  T340] Preemption disabled at:
| [   21.274067][  T340] 0x0
| [   21.274080][  T340] Tainted: [W]=WARN
[   21.274082][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.274084][  T340] Call Trace:
[   21.274086][  T340]  <TASK>
[   21.274088][  T340]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.274096][  T340]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.274102][  T340]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.274107][  T340]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.274114][  T340]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.274117][  T340]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.274126][  T340]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.274129][  T340]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.274135][  T340]  put_chars (drivers/char/virtio_console.c:1176)
[   21.274137][  T340]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   21.274140][  T340]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.274145][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.274150][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.274153][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.274160][  T340]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.274165][  T340]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.274168][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274170][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274177][  T340]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.274181][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.274186][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274189][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.274196][  T340]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.274202][  T340]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.274205][  T340]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.274210][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274213][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.274220][  T340]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.274227][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.274229][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274239][  T340]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.274243][  T340]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.274246][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274249][  T340]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   21.274255][  T340]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.274257][  T340]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.274262][  T340]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.274267][  T340]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.274271][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.274274][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.274280][  T340]  _printk (kernel/printk/printk.c:2504)
[   21.274285][  T340]  ? snapshot_read.cold (user.c:?)
[   21.274298][  T340]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.274305][  T340]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   21.274311][  T340]  br_stp_disable_bridge (net/bridge/br_stp_if.c:76)
[   21.274315][  T340]  br_dev_stop (net/bridge/br_device.c:193)
[   21.274319][  T340]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.274322][  T340]  __dev_close_many (net/core/dev.c:1798)
[   21.274329][  T340]  ? netif_open (net/core/dev.c:1755)
[   21.274331][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.274335][  T340]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.274342][  T340]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   21.274348][  T340]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.274353][  T340]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   21.274360][  T340]  netif_change_flags (net/core/dev.c:9877)
[   21.274366][  T340]  dev_change_flags (net/core/dev_api.c:68)
[   21.274369][  T340]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.274374][  T340]  cycle_netdev (drivers/net/vrf.c:1001)
[   21.274381][  T340]  vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   21.274384][  T340]  do_set_master (net/core/rtnetlink.c:3055)
[   21.274390][  T340]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.274396][  T340]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.274400][  T340]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.274402][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.274405][  T340]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.274409][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.274413][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.274415][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.274419][  T340]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.274422][  T340]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.274424][  T340]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.274426][  T340]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.274430][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274433][  T340]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.274436][  T340]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.274443][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.274446][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.274450][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274453][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.274455][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274457][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274460][  T340]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.274463][  T340]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   21.274466][  T340]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.274469][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.274475][  T340]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.274477][  T340]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.274485][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274489][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.274498][  T340]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.274508][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.274511][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274519][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.274521][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.274525][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.274528][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.274534][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.274538][  T340]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.274543][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.274545][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.274553][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.274556][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.274562][  T340]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.274565][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.274570][  T340]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.274582][  T340]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.274584][  T340]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.274592][  T340]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.274599][  T340]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.274603][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.274610][  T340]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.274617][  T340]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.274623][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.274625][  T340]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.274634][  T340]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.274638][  T340]  ____sys_sendmsg (net/socket.c:2713)
[   21.274642][  T340]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.274645][  T340]  ? sock_write_iter (net/socket.c:1269)
[   21.274647][  T340]  ? move_addr_to_kernel (net/socket.c:258)
[   21.274661][  T340]  ___sys_sendmsg (net/socket.c:2767)
[   21.274665][  T340]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.274695][  T340]  __sys_sendmsg (net/socket.c:2799)
[   21.274699][  T340]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.274710][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.274715][  T340]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.274719][  T340]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.274723][  T340]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.274726][  T340] RIP: 0033:0x7fe34c39e54e
[   21.274729][  T340] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.274732][  T340] RSP: 002b:00007fff356670a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.274735][  T340] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe34c39e54e
[   21.274737][  T340] RDX: 0000000000000000 RSI: 00007fff35667150 RDI: 0000000000000005
[   21.274738][  T340] RBP: 00007fff356670b0 R08: 0000000000000000 R09: 0000000000000000
[   21.274740][  T340] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913152
[   21.274741][  T340] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff35667810
| [   24.212948][  T400] softirqs last disabled at (37692): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.212950][  T400] Preemption disabled at:
| [   24.212951][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.212959][  T400] Tainted: [W]=WARN
[   24.212960][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.212962][  T400] Call Trace:
[   24.212964][  T400]  <TASK>
[   24.212965][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.212971][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.212973][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.212977][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.212982][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.212986][  T400]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.212988][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.212998][  T400]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.213001][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.213005][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   24.213008][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.213015][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.213024][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.213027][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.213032][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.213036][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.213038][  T400]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.213041][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.213044][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.213048][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.213052][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.213054][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.213060][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.213063][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.213065][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.213066][  T400]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   24.213070][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.213072][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.213075][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.213078][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.213079][  T400]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.213082][  T400]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.213084][  T400]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.213086][  T400]  ? ____sys_sendmsg (net/socket.c:2713)
[   24.213088][  T400]  ? ___sys_sendmsg (net/socket.c:2767)
[   24.213089][  T400]  ? __sys_sendmsg (net/socket.c:2799)
[   24.213091][  T400]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.213096][  T400]  _printk (kernel/printk/printk.c:2504)
[   24.213100][  T400]  ? snapshot_read.cold (user.c:?)
[   24.213104][  T400]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.213108][  T400]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.213112][  T400]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.213115][  T400]  ? netdev_notice (net/core/dev.c:13194)
[   24.213119][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.213121][  T400]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   24.213123][  T400]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   24.213125][  T400]  ? 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)
[   24.213127][  T400]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   24.213131][  T400]  dev_set_allmulti (net/core/dev_api.c:315)
[   24.213135][  T400]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   24.213139][  T400]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   24.213144][  T400]  br_dev_delete (net/bridge/br_if.c:387)
[   24.213148][  T400]  rtnl_dellink (net/core/rtnetlink.c:3651 net/core/rtnetlink.c:3694)
[   24.213150][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.213152][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.213153][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.213156][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.213177][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.213179][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.213182][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.213184][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.213186][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.213190][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.213192][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.213194][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.213196][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.213200][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.213202][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.213205][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.213206][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.213211][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.213213][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.213216][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.213218][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.213221][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.213227][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.213229][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.213234][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.213238][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.213240][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.213244][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.213248][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.213252][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.213254][  T400]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.213259][  T400]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.213262][  T400]  ____sys_sendmsg (net/socket.c:2713)
[   24.213264][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.213266][  T400]  ? sock_write_iter (net/socket.c:1269)
[   24.213268][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   24.213275][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   24.213278][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.213293][  T400]  __sys_sendmsg (net/socket.c:2799)
[   24.213296][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.213302][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.213305][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.213307][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.213311][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.213313][  T400] RIP: 0033:0x7fadc481d54e
[   24.213317][  T400] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.213318][  T400] RSP: 002b:00007ffd76de9ab0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.213321][  T400] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fadc481d54e
[   24.213322][  T400] RDX: 0000000000000000 RSI: 00007ffd76de9b60 RDI: 0000000000000005
[   24.213323][  T400] RBP: 00007ffd76de9ac0 R08: 0000000000000000 R09: 0000000000000000
[   24.213324][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913155
[   24.213325][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd76dea220
| [   27.136634][  T489] softirqs last disabled at (23916): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   27.136637][  T489] Preemption disabled at:
| [   27.136637][  T489] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.136646][  T489] Tainted: [W]=WARN
[   27.136647][  T489] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.136649][  T489] Call Trace:
[   27.136650][  T489]  <TASK>
[   27.136652][  T489]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.136658][  T489]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.136660][  T489]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.136664][  T489]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.136668][  T489]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.136672][  T489]  __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))
[   27.136674][  T489]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.136681][  T489]  ? 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)
[   27.136684][  T489]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.136688][  T489]  put_chars (drivers/char/virtio_console.c:1176)
[   27.136690][  T489]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.136696][  T489]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.136704][  T489]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.136707][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.136711][  T489]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.136715][  T489]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.136717][  T489]  ? 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))
[   27.136720][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136723][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.136727][  T489]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.136731][  T489]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.136733][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.136738][  T489]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.136741][  T489]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.136742][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136744][  T489]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   27.136748][  T489]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.136749][  T489]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.136752][  T489]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.136755][  T489]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.136758][  T489]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   27.136763][  T489]  _printk (kernel/printk/printk.c:2504)
[   27.136773][  T489]  ? snapshot_read.cold (user.c:?)
[   27.136774][  T489]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.136777][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.136780][  T489]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.136782][  T489]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   27.136786][  T489]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   27.136788][  T489]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.136791][  T489]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   27.136793][  T489]  ? netdev_notice (net/core/dev.c:13194)
[   27.136796][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.136800][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.136804][  T489]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.136810][  T489]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.136812][  T489]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   27.136815][  T489]  ? register_netdev (net/core/dev.c:11618)
[   27.136816][  T489]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   27.136821][  T489]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   27.136824][  T489]  ? __kernel_text_address (kernel/extable.c:79)
[   27.136827][  T489]  ? write_profile (profile.c:?)
[   27.136831][  T489]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   27.136836][  T489]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.136840][  T489]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.136842][  T489]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.136843][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   27.136845][  T489]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   27.136848][  T489]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.136850][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.136852][  T489]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.136854][  T489]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.136856][  T489]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.136857][  T489]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.136859][  T489]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.136861][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.136863][  T489]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   27.136866][  T489]  ? ___sys_sendmsg (net/socket.c:2758)
[   27.136870][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.136872][  T489]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.136874][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136876][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.136878][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136879][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136881][  T489]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.136883][  T489]  ? __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)
[   27.136884][  T489]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.136886][  T489]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.136889][  T489]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.136890][  T489]  ? nla_get_range_signed (lib/nlattr.c:270)
[   27.136895][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.136897][  T489]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.136902][  T489]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.136908][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.136910][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.136914][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.136916][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.136918][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.136919][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.136923][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.136925][  T489]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.136929][  T489]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.136930][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.136934][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.136936][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.136939][  T489]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.136943][  T489]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.136946][  T489]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.136952][  T489]  ? 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))
[   27.136954][  T489]  ? 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))
[   27.136958][  T489]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.136962][  T489]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.136965][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.136969][  T489]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.136973][  T489]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.136976][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.136978][  T489]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   27.136983][  T489]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.136986][  T489]  ____sys_sendmsg (net/socket.c:2713)
[   27.136991][  T489]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.136993][  T489]  ? sock_write_iter (net/socket.c:1269)
[   27.136995][  T489]  ? move_addr_to_kernel (net/socket.c:258)
[   27.137003][  T489]  ___sys_sendmsg (net/socket.c:2767)
[   27.137005][  T489]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.137022][  T489]  __sys_sendmsg (net/socket.c:2799)
[   27.137025][  T489]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.137031][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.137034][  T489]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.137038][  T489]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.137041][  T489]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.137043][  T489] RIP: 0033:0x7f9915ba754e
[   27.137047][  T489] 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
[   27.137049][  T489] RSP: 002b:00007ffe1b24f110 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.137052][  T489] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9915ba754e
[   27.137053][  T489] RDX: 0000000000000000 RSI: 00007ffe1b24f1c0 RDI: 0000000000000005
[   27.137054][  T489] RBP: 00007ffe1b24f120 R08: 0000000000000000 R09: 0000000000000000
[   27.137054][  T489] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913158
[   27.137055][  T489] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1b24f890
| [   35.970738][  T679] softirqs last disabled at (21940): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.970741][  T679] Preemption disabled at:
| [   35.970741][  T679] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.970750][  T679] Tainted: [W]=WARN
[   35.970751][  T679] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.970753][  T679] Call Trace:
[   35.970754][  T679]  <TASK>
[   35.970756][  T679]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.970762][  T679]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.970763][  T679]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.970768][  T679]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.970772][  T679]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.970777][  T679]  __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))
[   35.970778][  T679]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.970785][  T679]  ? 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)
[   35.970788][  T679]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.970792][  T679]  put_chars (drivers/char/virtio_console.c:1176)
[   35.970799][  T679]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.970806][  T679]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.970814][  T679]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.970817][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.970821][  T679]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.970826][  T679]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.970828][  T679]  ? 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))
[   35.970831][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.970834][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.970838][  T679]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.970842][  T679]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.970844][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.970849][  T679]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.970852][  T679]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.970854][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.970856][  T679]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   35.970859][  T679]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.970861][  T679]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.970864][  T679]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.970867][  T679]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.970870][  T679]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   35.970875][  T679]  _printk (kernel/printk/printk.c:2504)
[   35.970878][  T679]  ? snapshot_read.cold (user.c:?)
[   35.970880][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.970883][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.970886][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.970888][  T679]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.970892][  T679]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.970895][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.970897][  T679]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.970900][  T679]  ? netdev_notice (net/core/dev.c:13194)
[   35.970903][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.970906][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.970908][  T679]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.970912][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.970914][  T679]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.970916][  T679]  ? register_netdev (net/core/dev.c:11618)
[   35.970918][  T679]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   35.970923][  T679]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.970925][  T679]  ? __kernel_text_address (kernel/extable.c:79)
[   35.970928][  T679]  ? write_profile (profile.c:?)
[   35.970932][  T679]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.970938][  T679]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.970941][  T679]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.970944][  T679]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.970945][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.970947][  T679]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.970950][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.970952][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.970954][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.970957][  T679]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.970958][  T679]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.970960][  T679]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.970961][  T679]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.970963][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.970965][  T679]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.970968][  T679]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.970972][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.970974][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.970977][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.970979][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.970981][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.970983][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.970986][  T679]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.970993][  T679]  ? __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)
[   35.970995][  T679]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.970996][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.971000][  T679]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.971002][  T679]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.971007][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.971009][  T679]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.971014][  T679]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.971019][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.971021][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.971026][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.971028][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.971030][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.971031][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.971035][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.971037][  T679]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.971040][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.971042][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.971046][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.971048][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.971051][  T679]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.971055][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.971058][  T679]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.971064][  T679]  ? 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))
[   35.971066][  T679]  ? 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))
[   35.971070][  T679]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.971074][  T679]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.971077][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.971081][  T679]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.971085][  T679]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.971089][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.971091][  T679]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.971096][  T679]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.971099][  T679]  ____sys_sendmsg (net/socket.c:2713)
[   35.971101][  T679]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.971103][  T679]  ? sock_write_iter (net/socket.c:1269)
[   35.971105][  T679]  ? move_addr_to_kernel (net/socket.c:258)
[   35.971112][  T679]  ___sys_sendmsg (net/socket.c:2767)
[   35.971115][  T679]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.971131][  T679]  __sys_sendmsg (net/socket.c:2799)
[   35.971134][  T679]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.971140][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.971143][  T679]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.971146][  T679]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.971149][  T679]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.971151][  T679] RIP: 0033:0x7fe6bf38d54e
[   35.971155][  T679] 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
[   35.971157][  T679] RSP: 002b:00007ffdbb1ab2d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.971160][  T679] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe6bf38d54e
[   35.971161][  T679] RDX: 0000000000000000 RSI: 00007ffdbb1ab380 RDI: 0000000000000005
[   35.971162][  T679] RBP: 00007ffdbb1ab2e0 R08: 0000000000000000 R09: 0000000000000000
[   35.971163][  T679] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913161


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