======================================
| [   11.084344][  T243] softirqs last disabled at (34598): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   11.084347][  T243] Preemption disabled at:
| [   11.084348][  T243] 0x0
| [   11.084359][  T243] Tainted: [W]=WARN
[   11.084360][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.084362][  T243] Call Trace:
[   11.084364][  T243]  <TASK>
[   11.084365][  T243]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.084371][  T243]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.084376][  T243]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.084380][  T243]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.084385][  T243]  __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))
[   11.084387][  T243]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.084393][  T243]  ? 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)
[   11.084396][  T243]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.084399][  T243]  put_chars (drivers/char/virtio_console.c:1176)
[   11.084402][  T243]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.084403][  T243]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.084406][  T243]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.084412][  T243]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.084419][  T243]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.084422][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.084424][  T243]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.084428][  T243]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.084432][  T243]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.084434][  T243]  ? 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))
[   11.084437][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.084439][  T243]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.084443][  T243]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.084447][  T243]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.084449][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.084454][  T243]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.084457][  T243]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.084459][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.084460][  T243]  ? 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)
[   11.084464][  T243]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.084466][  T243]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.084468][  T243]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.084472][  T243]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.084475][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.084478][  T243]  _printk (kernel/printk/printk.c:2504)
[   11.084482][  T243]  ? snapshot_read.cold (user.c:?)
[   11.084484][  T243]  ? 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)
[   11.084487][  T243]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.084491][  T243]  ? 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)
[   11.084494][  T243]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.084498][  T243]  ? exit_notify (kernel/exit.c:780)
[   11.084499][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.084502][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.084505][  T243]  do_group_exit (kernel/exit.c:1151)
[   11.084508][  T243]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.084510][  T243]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.084512][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.084516][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.084519][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.084521][  T243] RIP: 0033:0x7f81e9ef71b8
[   11.084524][  T243] Code: Unable to access opcode bytes at 0x7f81e9ef718e.

Code starting with the faulting instruction
===========================================
[   11.084525][  T243] RSP: 002b:00007fff2385cdf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.084527][  T243] RAX: ffffffffffffffda RBX: 00007f81ea027f88 RCX: 00007f81e9ef71b8
[   11.084528][  T243] RDX: 00007f81e9c41fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.084529][  T243] RBP: 00007fff2385ce50 R08: 0000000000000000 R09: 0000000000008010
[   11.084530][  T243] R10: 00007fff2385cc10 R11: 0000000000000246 R12: 0000000000000001
[   11.084531][  T243] R13: 0000000000000000 R14: 00007f81ea026680 R15: 00007f81ea027fa0
| [   13.435517][  T293] softirqs last disabled at (54119): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.435520][  T293] Preemption disabled at:
| [   13.435520][  T293] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.435529][  T293] Tainted: [W]=WARN
[   13.435530][  T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.435532][  T293] Call Trace:
[   13.435534][  T293]  <TASK>
[   13.435535][  T293]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.435541][  T293]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.435543][  T293]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.435548][  T293]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.435553][  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)
[   13.435557][  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))
[   13.435559][  T293]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.435566][  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)
[   13.435568][  T293]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.435572][  T293]  put_chars (drivers/char/virtio_console.c:1176)
[   13.435575][  T293]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.435576][  T293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.435580][  T293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.435585][  T293]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.435593][  T293]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.435596][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435598][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.435602][  T293]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.435606][  T293]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.435608][  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))
[   13.435611][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435613][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.435617][  T293]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.435621][  T293]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.435623][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.435630][  T293]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.435634][  T293]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.435635][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435637][  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)
[   13.435641][  T293]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.435643][  T293]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.435646][  T293]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.435649][  T293]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.435654][  T293]  _printk (kernel/printk/printk.c:2504)
[   13.435658][  T293]  ? snapshot_read.cold (user.c:?)
[   13.435662][  T293]  ? br_multicast_flood (??:?)
[   13.435666][  T293]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.435667][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.435668][  T293]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.435673][  T293]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   13.435677][  T293]  br_init_port (net/bridge/br_stp_if.c:39)
[   13.435680][  T293]  new_nbp (net/bridge/br_if.c:449)
[   13.435684][  T293]  br_add_if (net/bridge/br_if.c:592)
[   13.435686][  T293]  ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2))
[   13.435688][  T293]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   13.435692][  T293]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.435695][  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)
[   13.435700][  T293]  ? vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   13.435702][  T293]  do_set_master (net/core/rtnetlink.c:3071)
[   13.435706][  T293]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.435709][  T293]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.435713][  T293]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.435714][  T293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.435717][  T293]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.435720][  T293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.435722][  T293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.435724][  T293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.435726][  T293]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.435729][  T293]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.435730][  T293]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.435731][  T293]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.435734][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.435736][  T293]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   13.435739][  T293]  ? ___sys_sendmsg (net/socket.c:2758)
[   13.435742][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.435744][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.435747][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435749][  T293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.435750][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435752][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435753][  T293]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.435756][  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)
[   13.435758][  T293]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.435760][  T293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.435763][  T293]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.435765][  T293]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.435770][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435772][  T293]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.435778][  T293]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.435783][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.435785][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.435790][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.435791][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.435794][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.435795][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.435799][  T293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.435801][  T293]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.435805][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.435806][  T293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.435811][  T293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.435812][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.435816][  T293]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.435819][  T293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.435822][  T293]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.435829][  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))
[   13.435831][  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))
[   13.435836][  T293]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.435840][  T293]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.435842][  T293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.435847][  T293]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.435851][  T293]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.435855][  T293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.435856][  T293]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   13.435862][  T293]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   13.435865][  T293]  ____sys_sendmsg (net/socket.c:2713)
[   13.435867][  T293]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.435869][  T293]  ? sock_write_iter (net/socket.c:1269)
[   13.435871][  T293]  ? move_addr_to_kernel (net/socket.c:258)
[   13.435878][  T293]  ___sys_sendmsg (net/socket.c:2767)
[   13.435881][  T293]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.435898][  T293]  __sys_sendmsg (net/socket.c:2799)
[   13.435901][  T293]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.435907][  T293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.435910][  T293]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.435913][  T293]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.435916][  T293]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.435918][  T293] RIP: 0033:0x7f8a5b54c54e
[   13.435922][  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
[   13.435924][  T293] RSP: 002b:00007ffdb88c1f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.435927][  T293] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8a5b54c54e
[   13.435928][  T293] RDX: 0000000000000000 RSI: 00007ffdb88c2040 RDI: 0000000000000005
[   13.435929][  T293] RBP: 00007ffdb88c1fa0 R08: 0000000000000000 R09: 0000000000000000
[   13.435930][  T293] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e03e
[   13.435931][  T293] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb88c2700
| [   20.036403][  T340] softirqs last disabled at (41962): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73)
| [   20.036405][  T340] Preemption disabled at:
| [   20.036406][  T340] 0x0
| [   20.036416][  T340] Tainted: [W]=WARN
[   20.036417][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.036418][  T340] Call Trace:
[   20.036420][  T340]  <TASK>
[   20.036422][  T340]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.036428][  T340]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.036433][  T340]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.036438][  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)
[   20.036442][  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))
[   20.036444][  T340]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.036451][  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)
[   20.036453][  T340]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.036457][  T340]  put_chars (drivers/char/virtio_console.c:1176)
[   20.036458][  T340]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   20.036461][  T340]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.036464][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.036467][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.036469][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.036473][  T340]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.036477][  T340]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.036479][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036481][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036485][  T340]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.036488][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   20.036491][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036493][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.036497][  T340]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.036501][  T340]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.036503][  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))
[   20.036506][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036508][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.036512][  T340]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.036516][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.036518][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036523][  T340]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.036526][  T340]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.036528][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036529][  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)
[   20.036533][  T340]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.036535][  T340]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.036537][  T340]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.036541][  T340]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.036543][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.036545][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.036548][  T340]  _printk (kernel/printk/printk.c:2504)
[   20.036552][  T340]  ? snapshot_read.cold (user.c:?)
[   20.036559][  T340]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   20.036564][  T340]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   20.036567][  T340]  br_stp_disable_bridge (net/bridge/br_stp_if.c:76)
[   20.036570][  T340]  br_dev_stop (net/bridge/br_device.c:193)
[   20.036572][  T340]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.036575][  T340]  __dev_close_many (net/core/dev.c:1798)
[   20.036579][  T340]  ? netif_open (net/core/dev.c:1755)
[   20.036581][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.036584][  T340]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.036588][  T340]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   20.036591][  T340]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.036595][  T340]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   20.036599][  T340]  netif_change_flags (net/core/dev.c:9877)
[   20.036603][  T340]  dev_change_flags (net/core/dev_api.c:68)
[   20.036604][  T340]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   20.036608][  T340]  cycle_netdev (drivers/net/vrf.c:1001)
[   20.036613][  T340]  vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   20.036616][  T340]  do_set_master (net/core/rtnetlink.c:3055)
[   20.036619][  T340]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   20.036622][  T340]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.036628][  T340]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.036630][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.036632][  T340]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.036635][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.036637][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.036639][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.036641][  T340]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.036643][  T340]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.036645][  T340]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.036646][  T340]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.036648][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036650][  T340]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.036653][  T340]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.036657][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.036659][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.036662][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036664][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.036665][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036666][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036668][  T340]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.036670][  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)
[   20.036673][  T340]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.036675][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.036679][  T340]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.036680][  T340]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.036685][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036687][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.036692][  T340]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.036698][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.036699][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036704][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.036706][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.036708][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.036710][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.036714][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.036716][  T340]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.036719][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.036720][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.036725][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.036727][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.036730][  T340]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.036733][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.036736][  T340]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.036743][  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))
[   20.036745][  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))
[   20.036749][  T340]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.036753][  T340]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.036756][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.036760][  T340]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.036764][  T340]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.036768][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.036770][  T340]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.036775][  T340]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.036778][  T340]  ____sys_sendmsg (net/socket.c:2713)
[   20.036780][  T340]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.036782][  T340]  ? sock_write_iter (net/socket.c:1269)
[   20.036784][  T340]  ? move_addr_to_kernel (net/socket.c:258)
[   20.036791][  T340]  ___sys_sendmsg (net/socket.c:2767)
[   20.036794][  T340]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.036810][  T340]  __sys_sendmsg (net/socket.c:2799)
[   20.036813][  T340]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.036819][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.036822][  T340]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.036825][  T340]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.036828][  T340]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.036830][  T340] RIP: 0033:0x7f495e8c154e
[   20.036832][  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
[   20.036833][  T340] RSP: 002b:00007ffd3253a670 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.036836][  T340] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f495e8c154e
[   20.036837][  T340] RDX: 0000000000000000 RSI: 00007ffd3253a720 RDI: 0000000000000005
[   20.036838][  T340] RBP: 00007ffd3253a680 R08: 0000000000000000 R09: 0000000000000000
[   20.036839][  T340] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e045
[   20.036840][  T340] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd3253ade0
| [   22.934927][  T400] softirqs last disabled at (31664): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.934929][  T400] Preemption disabled at:
| [   22.934930][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.934938][  T400] Tainted: [W]=WARN
[   22.934939][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.934941][  T400] Call Trace:
[   22.934943][  T400]  <TASK>
[   22.934944][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.934951][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.934952][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.934957][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.934961][  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)
[   22.934966][  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))
[   22.934968][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.934975][  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)
[   22.934977][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.934981][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   22.934983][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.934990][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.934998][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.935001][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.935006][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.935010][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.935012][  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))
[   22.935015][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.935018][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.935022][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.935027][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.935028][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.935034][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.935037][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.935039][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.935041][  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)
[   22.935044][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.935046][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.935049][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.935053][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.935054][  T400]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.935057][  T400]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.935059][  T400]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.935062][  T400]  ? ____sys_sendmsg (net/socket.c:2713)
[   22.935063][  T400]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.935065][  T400]  ? __sys_sendmsg (net/socket.c:2799)
[   22.935067][  T400]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.935073][  T400]  _printk (kernel/printk/printk.c:2504)
[   22.935077][  T400]  ? snapshot_read.cold (user.c:?)
[   22.935081][  T400]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.935085][  T400]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.935089][  T400]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.935092][  T400]  ? netdev_notice (net/core/dev.c:13194)
[   22.935096][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.935098][  T400]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.935101][  T400]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.935103][  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)
[   22.935105][  T400]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.935109][  T400]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.935113][  T400]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   22.935117][  T400]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   22.935122][  T400]  br_dev_delete (net/bridge/br_if.c:387)
[   22.935126][  T400]  rtnl_dellink (net/core/rtnetlink.c:3651 net/core/rtnetlink.c:3694)
[   22.935128][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.935130][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.935132][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.935134][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   22.935163][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.935166][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.935169][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.935171][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.935173][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.935177][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.935179][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.935181][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   22.935183][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.935187][  T400]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   22.935189][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.935193][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.935194][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.935199][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.935201][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.935204][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.935206][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.935209][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.935216][  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))
[   22.935218][  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))
[   22.935223][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.935227][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.935229][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.935234][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.935237][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.935241][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.935243][  T400]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.935249][  T400]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.935251][  T400]  ____sys_sendmsg (net/socket.c:2713)
[   22.935254][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.935256][  T400]  ? sock_write_iter (net/socket.c:1269)
[   22.935258][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   22.935265][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   22.935268][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.935284][  T400]  __sys_sendmsg (net/socket.c:2799)
[   22.935286][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.935293][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.935296][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.935298][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.935301][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.935303][  T400] RIP: 0033:0x7f94862e754e
[   22.935307][  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
[   22.935308][  T400] RSP: 002b:00007ffe2b85bb00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.935311][  T400] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f94862e754e
[   22.935312][  T400] RDX: 0000000000000000 RSI: 00007ffe2b85bbb0 RDI: 0000000000000005
[   22.935313][  T400] RBP: 00007ffe2b85bb10 R08: 0000000000000000 R09: 0000000000000000
[   22.935314][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e048
[   22.935315][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe2b85c270
| [   25.555063][  T489] softirqs last disabled at (22672): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   25.555066][  T489] Preemption disabled at:
| [   25.555067][  T489] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.555075][  T489] Tainted: [W]=WARN
[   25.555076][  T489] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.555078][  T489] Call Trace:
[   25.555079][  T489]  <TASK>
[   25.555081][  T489]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.555087][  T489]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.555089][  T489]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.555093][  T489]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.555098][  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)
[   25.555102][  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))
[   25.555104][  T489]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.555110][  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)
[   25.555113][  T489]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.555116][  T489]  put_chars (drivers/char/virtio_console.c:1176)
[   25.555119][  T489]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.555125][  T489]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.555132][  T489]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.555135][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.555140][  T489]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.555144][  T489]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.555145][  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))
[   25.555149][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555151][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.555161][  T489]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.555165][  T489]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.555167][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.555172][  T489]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.555175][  T489]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.555177][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555179][  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)
[   25.555183][  T489]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.555184][  T489]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.555187][  T489]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.555190][  T489]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.555193][  T489]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   25.555198][  T489]  _printk (kernel/printk/printk.c:2504)
[   25.555201][  T489]  ? snapshot_read.cold (user.c:?)
[   25.555203][  T489]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.555206][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.555209][  T489]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.555211][  T489]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   25.555215][  T489]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   25.555218][  T489]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.555220][  T489]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   25.555223][  T489]  ? netdev_notice (net/core/dev.c:13194)
[   25.555226][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.555228][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.555231][  T489]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.555235][  T489]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.555237][  T489]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   25.555239][  T489]  ? register_netdev (net/core/dev.c:11618)
[   25.555240][  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))
[   25.555245][  T489]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   25.555248][  T489]  ? __kernel_text_address (kernel/extable.c:79)
[   25.555250][  T489]  ? write_profile (profile.c:?)
[   25.555254][  T489]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   25.555260][  T489]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.555264][  T489]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.555266][  T489]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.555267][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.555269][  T489]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.555272][  T489]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.555274][  T489]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.555276][  T489]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.555279][  T489]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.555280][  T489]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.555282][  T489]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.555283][  T489]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.555285][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.555287][  T489]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.555290][  T489]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.555294][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.555296][  T489]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.555298][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555300][  T489]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.555302][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555303][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555304][  T489]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.555307][  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)
[   25.555308][  T489]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.555310][  T489]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.555313][  T489]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.555314][  T489]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.555319][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555321][  T489]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.555326][  T489]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.555332][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.555334][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.555338][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.555340][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.555342][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.555345][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.555351][  T489]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.555354][  T489]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.555358][  T489]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.555359][  T489]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.555363][  T489]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.555365][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.555369][  T489]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.555372][  T489]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.555375][  T489]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.555381][  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))
[   25.555384][  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))
[   25.555388][  T489]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.555392][  T489]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.555395][  T489]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.555399][  T489]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.555403][  T489]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.555406][  T489]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.555408][  T489]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.555413][  T489]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.555416][  T489]  ____sys_sendmsg (net/socket.c:2713)
[   25.555418][  T489]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.555421][  T489]  ? sock_write_iter (net/socket.c:1269)
[   25.555422][  T489]  ? move_addr_to_kernel (net/socket.c:258)
[   25.555430][  T489]  ___sys_sendmsg (net/socket.c:2767)
[   25.555432][  T489]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.555448][  T489]  __sys_sendmsg (net/socket.c:2799)
[   25.555451][  T489]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.555457][  T489]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.555460][  T489]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.555463][  T489]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.555466][  T489]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.555468][  T489] RIP: 0033:0x7fdba8a5a54e
[   25.555472][  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
[   25.555473][  T489] RSP: 002b:00007ffdf6284bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.555476][  T489] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fdba8a5a54e
[   25.555477][  T489] RDX: 0000000000000000 RSI: 00007ffdf6284c70 RDI: 0000000000000005
[   25.555478][  T489] RBP: 00007ffdf6284bd0 R08: 0000000000000000 R09: 0000000000000000
[   25.555479][  T489] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e04a
[   25.555480][  T489] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf6285340
| [   34.050232][  T680] softirqs last disabled at (29312): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   34.050234][  T680] Preemption disabled at:
| [   34.050235][  T680] vprintk_emit (kernel/printk/printk.c:2471)
| [   34.050243][  T680] Tainted: [W]=WARN
[   34.050244][  T680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.050246][  T680] Call Trace:
[   34.050248][  T680]  <TASK>
[   34.050249][  T680]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   34.050255][  T680]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   34.050257][  T680]  __might_resched.cold (kernel/sched/core.c:9234)
[   34.050262][  T680]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   34.050266][  T680]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   34.050270][  T680]  __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))
[   34.050272][  T680]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.050279][  T680]  ? 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)
[   34.050281][  T680]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.050285][  T680]  put_chars (drivers/char/virtio_console.c:1176)
[   34.050288][  T680]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   34.050294][  T680]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   34.050301][  T680]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   34.050304][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.050309][  T680]  console_emit_next_record (kernel/printk/printk.c:3183)
[   34.050313][  T680]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   34.050314][  T680]  ? 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))
[   34.050318][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050320][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.050324][  T680]  console_flush_one_record (kernel/printk/printk.c:3268)
[   34.050328][  T680]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   34.050330][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.050335][  T680]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   34.050338][  T680]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   34.050340][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050342][  T680]  ? 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)
[   34.050348][  T680]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   34.050351][  T680]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   34.050355][  T680]  vprintk_emit (kernel/printk/printk.c:2479)
[   34.050359][  T680]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   34.050361][  T680]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   34.050367][  T680]  _printk (kernel/printk/printk.c:2504)
[   34.050370][  T680]  ? snapshot_read.cold (user.c:?)
[   34.050372][  T680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.050375][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.050378][  T680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   34.050380][  T680]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   34.050384][  T680]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   34.050386][  T680]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.050389][  T680]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   34.050392][  T680]  ? netdev_notice (net/core/dev.c:13194)
[   34.050394][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.050397][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.050400][  T680]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   34.050403][  T680]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.050405][  T680]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   34.050407][  T680]  ? register_netdev (net/core/dev.c:11618)
[   34.050409][  T680]  ? 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))
[   34.050414][  T680]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   34.050416][  T680]  ? __kernel_text_address (kernel/extable.c:79)
[   34.050419][  T680]  ? write_profile (profile.c:?)
[   34.050423][  T680]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   34.050429][  T680]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.050432][  T680]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   34.050434][  T680]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   34.050435][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   34.050437][  T680]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   34.050440][  T680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.050442][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.050444][  T680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   34.050446][  T680]  ? kasan_save_stack (mm/kasan/common.c:58)
[   34.050448][  T680]  ? kasan_save_stack (mm/kasan/common.c:57)
[   34.050449][  T680]  ? kasan_save_track (mm/kasan/common.c:78)
[   34.050451][  T680]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   34.050453][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.050455][  T680]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   34.050457][  T680]  ? ___sys_sendmsg (net/socket.c:2758)
[   34.050461][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.050463][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.050466][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050467][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.050469][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050470][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050472][  T680]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   34.050474][  T680]  ? __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)
[   34.050475][  T680]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   34.050477][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.050480][  T680]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   34.050482][  T680]  ? nla_get_range_signed (lib/nlattr.c:270)
[   34.050487][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050489][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   34.050494][  T680]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   34.050499][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.050501][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.050505][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.050507][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.050509][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.050511][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.050514][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.050516][  T680]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.050519][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.050521][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.050525][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.050527][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.050530][  T680]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.050533][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.050536][  T680]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   34.050542][  T680]  ? 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))
[   34.050544][  T680]  ? 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))
[   34.050548][  T680]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.050552][  T680]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   34.050555][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.050559][  T680]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.050563][  T680]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   34.050566][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.050568][  T680]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   34.050573][  T680]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   34.050576][  T680]  ____sys_sendmsg (net/socket.c:2713)
[   34.050578][  T680]  ? copy_msghdr_from_user (net/socket.c:2650)
[   34.050580][  T680]  ? sock_write_iter (net/socket.c:1269)
[   34.050582][  T680]  ? move_addr_to_kernel (net/socket.c:258)
[   34.050589][  T680]  ___sys_sendmsg (net/socket.c:2767)
[   34.050592][  T680]  ? copy_msghdr_from_user (net/socket.c:2619)
[   34.050607][  T680]  __sys_sendmsg (net/socket.c:2799)
[   34.050610][  T680]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   34.050616][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.050619][  T680]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.050622][  T680]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   34.050625][  T680]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.050630][  T680] RIP: 0033:0x7f000d62754e
[   34.050633][  T680] 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
[   34.050635][  T680] RSP: 002b:00007ffe3db0c940 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   34.050638][  T680] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f000d62754e
[   34.050639][  T680] RDX: 0000000000000000 RSI: 00007ffe3db0c9f0 RDI: 0000000000000005
[   34.050640][  T680] RBP: 00007ffe3db0c950 R08: 0000000000000000 R09: 0000000000000000
[   34.050641][  T680] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e053


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
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars